flutter/rive-flutter
1
0
Fork 0
mirror of https://github.com/rive-app/rive-flutter.git synced 2025-06-22 14:41:27 +08:00
Code Issues Packages Projects Releases Wiki Activity

Syncing to latest rive features including click events from rive.

Browse Source
This commit is contained in:
Luigi Rosso
2022-05-11 11:21:42 -07:00
committed by Luigi Rosso
parent 2fe38ca337
commit 92c7af2343
57 changed files with 1695 additions and 390 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
lib/src/controllers/state_machine_controller.dart
View File

@ -46,15 +46,15 @@ abstract class SMIInput<T> {
/// method to change the input value, but calling change(true) is totally
/// valid.
bool change(T value) {
if (controller.inputValues[id] == value) {
if (controller.getInputValue(id) == value) {
return false;
}
controller.inputValues[id] = value;
controller.setInputValue(id, value);
controller.isActive = true;
return true;
}
T get value => controller.inputValues[id] as T;
T get value => controller.getInputValue(id) as T;
set value(T newValue) => change(newValue);
bool _is<K>() {
@ -72,7 +72,7 @@ class SMIBool extends SMIInput<bool> {
SMIType.boolean,
controller,
) {
controller.inputValues[id] = input.value;
controller.setInputValue(id, input.value);
}
}
@ -86,7 +86,7 @@ class SMINumber extends SMIInput<double> {
SMIType.number,
controller,
) {
controller.inputValues[id] = input.value;
controller.setInputValue(id, input.value);
}
}
@ -100,7 +100,7 @@ class SMITrigger extends SMIInput<bool> {
SMIType.trigger,
controller,
) {
controller.inputValues[id] = false;
controller.setInputValue(id, false);
}
void fire() => change(true);

4
lib/src/core/core.dart
View File

@ -4,8 +4,8 @@ import 'package:flutter/foundation.dart';
import 'package:rive/src/rive_core/runtime/exceptions/rive_format_error_exception.dart';
export 'dart:typed_data';
export 'package:flutter/foundation.dart';
export 'package:flutter/foundation.dart';
export 'package:rive/src/animation_list.dart';
export 'package:rive/src/asset_list.dart';
export 'package:rive/src/blend_animations.dart';
@ -17,10 +17,12 @@ export 'package:rive/src/core/importers/keyed_object_importer.dart';
export 'package:rive/src/core/importers/keyed_property_importer.dart';
export 'package:rive/src/core/importers/layer_state_importer.dart';
export 'package:rive/src/core/importers/linear_animation_importer.dart';
export 'package:rive/src/core/importers/state_machine_event_importer.dart';
export 'package:rive/src/core/importers/state_machine_importer.dart';
export 'package:rive/src/core/importers/state_machine_layer_importer.dart';
export 'package:rive/src/core/importers/state_transition_importer.dart';
export 'package:rive/src/generated/rive_core_context.dart';
export 'package:rive/src/input_changes.dart';
export 'package:rive/src/runtime_artboard.dart';
export 'package:rive/src/state_machine_components.dart';
export 'package:rive/src/state_transition_conditions.dart';

14
lib/src/core/importers/state_machine_event_importer.dart Normal file
View File

@ -0,0 +1,14 @@
import 'package:rive/src/core/importers/artboard_import_stack_object.dart';
import 'package:rive/src/rive_core/animation/event_input_change.dart';
import 'package:rive/src/rive_core/animation/state_machine_event.dart';
class StateMachineEventImporter extends ArtboardImportStackObject {
final StateMachineEvent event;
StateMachineEventImporter(this.event);
void addInputChange(EventInputChange change) {
// Other state machine importers do this, do we really need it?
// event.context.addObject(change);
event.internalAddInputChange(change);
}
}

44
lib/src/generated/animation/event_bool_change_base.dart Normal file
View File

@ -0,0 +1,44 @@
/// Core automatically generated
/// lib/src/generated/animation/event_bool_change_base.dart.
/// Do not modify manually.
import 'package:rive/src/rive_core/animation/event_input_change.dart';
abstract class EventBoolChangeBase extends EventInputChange {
static const int typeKey = 117;
@override
int get coreType => EventBoolChangeBase.typeKey;
@override
Set<int> get coreTypes =>
{EventBoolChangeBase.typeKey, EventInputChangeBase.typeKey};
/// --------------------------------------------------------------------------
/// Value field with key 228.
static const int valueInitialValue = 1;
int _value = valueInitialValue;
static const int valuePropertyKey = 228;
/// Value to set the input to when the event occurs.
int get value => _value;
/// Change the [_value] field value.
/// [valueChanged] will be invoked only if the field's value has changed.
set value(int value) {
if (_value == value) {
return;
}
int from = _value;
_value = value;
if (hasValidated) {
valueChanged(from, value);
}
}
void valueChanged(int from, int to);
@override
void copy(covariant EventBoolChangeBase source) {
super.copy(source);
_value = source._value;
}
}

42
lib/src/generated/animation/event_input_change_base.dart Normal file
View File

@ -0,0 +1,42 @@
/// Core automatically generated
/// lib/src/generated/animation/event_input_change_base.dart.
/// Do not modify manually.
import 'package:rive/src/core/core.dart';
abstract class EventInputChangeBase<T extends CoreContext> extends Core<T> {
static const int typeKey = 116;
@override
int get coreType => EventInputChangeBase.typeKey;
@override
Set<int> get coreTypes => {EventInputChangeBase.typeKey};
/// --------------------------------------------------------------------------
/// InputId field with key 227.
static const int inputIdInitialValue = -1;
int _inputId = inputIdInitialValue;
static const int inputIdPropertyKey = 227;
/// Id of the StateMachineInput referenced.
int get inputId => _inputId;
/// Change the [_inputId] field value.
/// [inputIdChanged] will be invoked only if the field's value has changed.
set inputId(int value) {
if (_inputId == value) {
return;
}
int from = _inputId;
_inputId = value;
if (hasValidated) {
inputIdChanged(from, value);
}
}
void inputIdChanged(int from, int to);
@override
void copy(covariant EventInputChangeBase source) {
_inputId = source._inputId;
}
}

44
lib/src/generated/animation/event_number_change_base.dart Normal file
View File

@ -0,0 +1,44 @@
/// Core automatically generated
/// lib/src/generated/animation/event_number_change_base.dart.
/// Do not modify manually.
import 'package:rive/src/rive_core/animation/event_input_change.dart';
abstract class EventNumberChangeBase extends EventInputChange {
static const int typeKey = 118;
@override
int get coreType => EventNumberChangeBase.typeKey;
@override
Set<int> get coreTypes =>
{EventNumberChangeBase.typeKey, EventInputChangeBase.typeKey};
/// --------------------------------------------------------------------------
/// Value field with key 229.
static const double valueInitialValue = 0;
double _value = valueInitialValue;
static const int valuePropertyKey = 229;
/// Value to set the input to when the event occurs.
double get value => _value;
/// Change the [_value] field value.
/// [valueChanged] will be invoked only if the field's value has changed.
set value(double value) {
if (_value == value) {
return;
}
double from = _value;
_value = value;
if (hasValidated) {
valueChanged(from, value);
}
}
void valueChanged(double from, double to);
@override
void copy(covariant EventNumberChangeBase source) {
super.copy(source);
_value = source._value;
}
}

14
lib/src/generated/animation/event_trigger_change_base.dart Normal file
View File

@ -0,0 +1,14 @@
/// Core automatically generated
/// lib/src/generated/animation/event_trigger_change_base.dart.
/// Do not modify manually.
import 'package:rive/src/rive_core/animation/event_input_change.dart';
abstract class EventTriggerChangeBase extends EventInputChange {
static const int typeKey = 115;
@override
int get coreType => EventTriggerChangeBase.typeKey;
@override
Set<int> get coreTypes =>
{EventTriggerChangeBase.typeKey, EventInputChangeBase.typeKey};
}

70
lib/src/generated/animation/state_machine_event_base.dart Normal file
View File

@ -0,0 +1,70 @@
/// Core automatically generated
/// lib/src/generated/animation/state_machine_event_base.dart.
/// Do not modify manually.
import 'package:rive/src/rive_core/animation/state_machine_component.dart';
abstract class StateMachineEventBase extends StateMachineComponent {
static const int typeKey = 114;
@override
int get coreType => StateMachineEventBase.typeKey;
@override
Set<int> get coreTypes =>
{StateMachineEventBase.typeKey, StateMachineComponentBase.typeKey};
/// --------------------------------------------------------------------------
/// TargetId field with key 224.
static const int targetIdInitialValue = 0;
int _targetId = targetIdInitialValue;
static const int targetIdPropertyKey = 224;
/// Identifier used to track the object use as a target fo this event.
int get targetId => _targetId;
/// Change the [_targetId] field value.
/// [targetIdChanged] will be invoked only if the field's value has changed.
set targetId(int value) {
if (_targetId == value) {
return;
}
int from = _targetId;
_targetId = value;
if (hasValidated) {
targetIdChanged(from, value);
}
}
void targetIdChanged(int from, int to);
/// --------------------------------------------------------------------------
/// EventTypeValue field with key 225.
static const int eventTypeValueInitialValue = 0;
int _eventTypeValue = eventTypeValueInitialValue;
static const int eventTypeValuePropertyKey = 225;
/// Event type (hover, click, etc).
int get eventTypeValue => _eventTypeValue;
/// Change the [_eventTypeValue] field value.
/// [eventTypeValueChanged] will be invoked only if the field's value has
/// changed.
set eventTypeValue(int value) {
if (_eventTypeValue == value) {
return;
}
int from = _eventTypeValue;
_eventTypeValue = value;
if (hasValidated) {
eventTypeValueChanged(from, value);
}
}
void eventTypeValueChanged(int from, int to);
@override
void copy(covariant StateMachineEventBase source) {
super.copy(source);
_targetId = source._targetId;
_eventTypeValue = source._eventTypeValue;
}
}

88
lib/src/generated/rive_core_context.dart
View File

@ -8,6 +8,7 @@ import 'package:rive/src/core/field_types/core_string_type.dart';
import 'package:rive/src/core/field_types/core_uint_type.dart';
import 'package:rive/src/generated/animation/blend_animation_base.dart';
import 'package:rive/src/generated/animation/cubic_interpolator_base.dart';
import 'package:rive/src/generated/animation/event_input_change_base.dart';
import 'package:rive/src/generated/animation/keyframe_base.dart';
import 'package:rive/src/generated/animation/nested_linear_animation_base.dart';
import 'package:rive/src/generated/animation/state_machine_component_base.dart';
@ -40,6 +41,9 @@ import 'package:rive/src/rive_core/animation/blend_state_direct.dart';
import 'package:rive/src/rive_core/animation/blend_state_transition.dart';
import 'package:rive/src/rive_core/animation/cubic_interpolator.dart';
import 'package:rive/src/rive_core/animation/entry_state.dart';
import 'package:rive/src/rive_core/animation/event_bool_change.dart';
import 'package:rive/src/rive_core/animation/event_number_change.dart';
import 'package:rive/src/rive_core/animation/event_trigger_change.dart';
import 'package:rive/src/rive_core/animation/exit_state.dart';
import 'package:rive/src/rive_core/animation/keyed_object.dart';
import 'package:rive/src/rive_core/animation/keyed_property.dart';
@ -53,6 +57,7 @@ import 'package:rive/src/rive_core/animation/nested_simple_animation.dart';
import 'package:rive/src/rive_core/animation/nested_state_machine.dart';
import 'package:rive/src/rive_core/animation/state_machine.dart';
import 'package:rive/src/rive_core/animation/state_machine_bool.dart';
import 'package:rive/src/rive_core/animation/state_machine_event.dart';
import 'package:rive/src/rive_core/animation/state_machine_layer.dart';
import 'package:rive/src/rive_core/animation/state_machine_number.dart';
import 'package:rive/src/rive_core/animation/state_machine_trigger.dart';
@ -127,6 +132,8 @@ class RiveCoreContext {
return Node();
case NestedArtboardBase.typeKey:
return NestedArtboard();
case EventNumberChangeBase.typeKey:
return EventNumberChange();
case AnimationBase.typeKey:
return Animation();
case LinearAnimationBase.typeKey:
@ -135,6 +142,8 @@ class RiveCoreContext {
return NestedSimpleAnimation();
case AnimationStateBase.typeKey:
return AnimationState();
case StateMachineEventBase.typeKey:
return StateMachineEvent();
case KeyedObjectBase.typeKey:
return KeyedObject();
case BlendAnimationDirectBase.typeKey:
@ -151,8 +160,12 @@ class RiveCoreContext {
return KeyFrameBool();
case TransitionNumberConditionBase.typeKey:
return TransitionNumberCondition();
case EventBoolChangeBase.typeKey:
return EventBoolChange();
case AnyStateBase.typeKey:
return AnyState();
case EventTriggerChangeBase.typeKey:
return EventTriggerChange();
case StateMachineLayerBase.typeKey:
return StateMachineLayer();
case CubicInterpolatorBase.typeKey:
@ -444,6 +457,16 @@ class RiveCoreContext {
object.animationId = value;
}
break;
case EventInputChangeBase.inputIdPropertyKey:
if (object is EventInputChangeBase && value is int) {
object.inputId = value;
}
break;
case EventNumberChangeBase.valuePropertyKey:
if (object is EventNumberChangeBase && value is double) {
object.value = value;
}
break;
case AnimationBase.namePropertyKey:
if (object is AnimationBase && value is String) {
object.name = value;
@ -504,6 +527,21 @@ class RiveCoreContext {
object.animationId = value;
}
break;
case StateMachineComponentBase.namePropertyKey:
if (object is StateMachineComponentBase && value is String) {
object.name = value;
}
break;
case StateMachineEventBase.targetIdPropertyKey:
if (object is StateMachineEventBase && value is int) {
object.targetId = value;
}
break;
case StateMachineEventBase.eventTypeValuePropertyKey:
if (object is StateMachineEventBase && value is int) {
object.eventTypeValue = value;
}
break;
case KeyedObjectBase.objectIdPropertyKey:
if (object is KeyedObjectBase && value is int) {
object.objectId = value;
@ -519,11 +557,6 @@ class RiveCoreContext {
object.inputId = value;
}
break;
case StateMachineComponentBase.namePropertyKey:
if (object is StateMachineComponentBase && value is String) {
object.name = value;
}
break;
case StateMachineNumberBase.valuePropertyKey:
if (object is StateMachineNumberBase && value is double) {
object.value = value;
@ -574,6 +607,11 @@ class RiveCoreContext {
object.value = value;
}
break;
case EventBoolChangeBase.valuePropertyKey:
if (object is EventBoolChangeBase && value is int) {
object.value = value;
}
break;
case CubicInterpolatorBase.x1PropertyKey:
if (object is CubicInterpolatorBase && value is double) {
object.x1 = value;
@ -1108,12 +1146,15 @@ class RiveCoreContext {
case DrawableBase.drawableFlagsPropertyKey:
case NestedArtboardBase.artboardIdPropertyKey:
case NestedAnimationBase.animationIdPropertyKey:
case EventInputChangeBase.inputIdPropertyKey:
case LinearAnimationBase.fpsPropertyKey:
case LinearAnimationBase.durationPropertyKey:
case LinearAnimationBase.loopValuePropertyKey:
case LinearAnimationBase.workStartPropertyKey:
case LinearAnimationBase.workEndPropertyKey:
case AnimationStateBase.animationIdPropertyKey:
case StateMachineEventBase.targetIdPropertyKey:
case StateMachineEventBase.eventTypeValuePropertyKey:
case KeyedObjectBase.objectIdPropertyKey:
case BlendAnimationBase.animationIdPropertyKey:
case BlendAnimationDirectBase.inputIdPropertyKey:
@ -1124,6 +1165,7 @@ class RiveCoreContext {
case KeyFrameBase.interpolatorIdPropertyKey:
case KeyFrameIdBase.valuePropertyKey:
case TransitionValueConditionBase.opValuePropertyKey:
case EventBoolChangeBase.valuePropertyKey:
case StateTransitionBase.stateToIdPropertyKey:
case StateTransitionBase.flagsPropertyKey:
case StateTransitionBase.durationPropertyKey:
@ -1163,6 +1205,7 @@ class RiveCoreContext {
case TransformComponentBase.scaleYPropertyKey:
case NodeBase.xPropertyKey:
case NodeBase.yPropertyKey:
case EventNumberChangeBase.valuePropertyKey:
case LinearAnimationBase.speedPropertyKey:
case NestedLinearAnimationBase.mixPropertyKey:
case NestedSimpleAnimationBase.speedPropertyKey:
@ -1306,6 +1349,8 @@ class RiveCoreContext {
return (object as NestedArtboardBase).artboardId;
case NestedAnimationBase.animationIdPropertyKey:
return (object as NestedAnimationBase).animationId;
case EventInputChangeBase.inputIdPropertyKey:
return (object as EventInputChangeBase).inputId;
case LinearAnimationBase.fpsPropertyKey:
return (object as LinearAnimationBase).fps;
case LinearAnimationBase.durationPropertyKey:
@ -1318,6 +1363,10 @@ class RiveCoreContext {
return (object as LinearAnimationBase).workEnd;
case AnimationStateBase.animationIdPropertyKey:
return (object as AnimationStateBase).animationId;
case StateMachineEventBase.targetIdPropertyKey:
return (object as StateMachineEventBase).targetId;
case StateMachineEventBase.eventTypeValuePropertyKey:
return (object as StateMachineEventBase).eventTypeValue;
case KeyedObjectBase.objectIdPropertyKey:
return (object as KeyedObjectBase).objectId;
case BlendAnimationBase.animationIdPropertyKey:
@ -1338,6 +1387,8 @@ class RiveCoreContext {
return (object as KeyFrameIdBase).value;
case TransitionValueConditionBase.opValuePropertyKey:
return (object as TransitionValueConditionBase).opValue;
case EventBoolChangeBase.valuePropertyKey:
return (object as EventBoolChangeBase).value;
case StateTransitionBase.stateToIdPropertyKey:
return (object as StateTransitionBase).stateToId;
case StateTransitionBase.flagsPropertyKey:
@ -1420,6 +1471,8 @@ class RiveCoreContext {
return (object as NodeBase).x;
case NodeBase.yPropertyKey:
return (object as NodeBase).y;
case EventNumberChangeBase.valuePropertyKey:
return (object as EventNumberChangeBase).value;
case LinearAnimationBase.speedPropertyKey:
return (object as LinearAnimationBase).speed;
case NestedLinearAnimationBase.mixPropertyKey:
@ -1718,6 +1771,11 @@ class RiveCoreContext {
object.animationId = value;
}
break;
case EventInputChangeBase.inputIdPropertyKey:
if (object is EventInputChangeBase) {
object.inputId = value;
}
break;
case LinearAnimationBase.fpsPropertyKey:
if (object is LinearAnimationBase) {
object.fps = value;
@ -1748,6 +1806,16 @@ class RiveCoreContext {
object.animationId = value;
}
break;
case StateMachineEventBase.targetIdPropertyKey:
if (object is StateMachineEventBase) {
object.targetId = value;
}
break;
case StateMachineEventBase.eventTypeValuePropertyKey:
if (object is StateMachineEventBase) {
object.eventTypeValue = value;
}
break;
case KeyedObjectBase.objectIdPropertyKey:
if (object is KeyedObjectBase) {
object.objectId = value;
@ -1798,6 +1866,11 @@ class RiveCoreContext {
object.opValue = value;
}
break;
case EventBoolChangeBase.valuePropertyKey:
if (object is EventBoolChangeBase) {
object.value = value;
}
break;
case StateTransitionBase.stateToIdPropertyKey:
if (object is StateTransitionBase) {
object.stateToId = value;
@ -1993,6 +2066,11 @@ class RiveCoreContext {
object.y = value;
}
break;
case EventNumberChangeBase.valuePropertyKey:
if (object is EventNumberChangeBase) {
object.value = value;
}
break;
case LinearAnimationBase.speedPropertyKey:
if (object is LinearAnimationBase) {
object.speed = value;

20
lib/src/input_changes.dart Normal file
View File

@ -0,0 +1,20 @@
import 'dart:collection';
import 'package:rive/src/rive_core/animation/event_input_change.dart';
class InputChanges extends ListBase<EventInputChange> {
final List<EventInputChange?> _values = [];
List<EventInputChange> get values => _values.cast<EventInputChange>();
@override
int get length => _values.length;
@override
set length(int value) => _values.length = value;
@override
EventInputChange operator [](int index) => _values[index]!;
@override
void operator []=(int index, EventInputChange value) =>
_values[index] = value;
}

10
lib/src/rive_core/animation/blend_state_1d_instance.dart
View File

@ -1,8 +1,7 @@
import 'dart:collection';
import 'package:rive/src/rive_core/animation/blend_animation_1d.dart';
import 'package:rive/src/rive_core/animation/blend_state_1d.dart';
import 'package:rive/src/rive_core/animation/blend_state_instance.dart';
import 'package:rive/src/rive_core/state_machine_controller.dart';
/// [BlendState1D] mixing logic that runs inside the [StateMachine].
class BlendState1DInstance
@ -41,9 +40,10 @@ class BlendState1DInstance
BlendStateAnimationInstance<BlendAnimation1D>? _to;
@override
void advance(double seconds, HashMap<int, dynamic> inputValues) {
super.advance(seconds, inputValues);
dynamic inputValue = inputValues[(state as BlendState1D).inputId];
void advance(double seconds, StateMachineController controller) {
super.advance(seconds, controller);
dynamic inputValue =
controller.getInputValue((state as BlendState1D).inputId);
var value = (inputValue is double
? inputValue
: (state as BlendState1D).input?.value) ??

10
lib/src/rive_core/animation/blend_state_direct_instance.dart
View File

@ -1,8 +1,7 @@
import 'dart:collection';
import 'package:rive/src/rive_core/animation/blend_animation_direct.dart';
import 'package:rive/src/rive_core/animation/blend_state_direct.dart';
import 'package:rive/src/rive_core/animation/blend_state_instance.dart';
import 'package:rive/src/rive_core/state_machine_controller.dart';
/// [BlendStateDirect] mixing logic that runs inside the [StateMachine].
class BlendStateDirectInstance
@ -10,10 +9,11 @@ class BlendStateDirectInstance
BlendStateDirectInstance(BlendStateDirect state) : super(state);
@override
void advance(double seconds, HashMap<int, dynamic> inputValues) {
super.advance(seconds, inputValues);
void advance(double seconds, StateMachineController controller) {
super.advance(seconds, controller);
for (final animation in animationInstances) {
dynamic inputValue = inputValues[animation.blendAnimation.inputId];
dynamic inputValue =
controller.getInputValue(animation.blendAnimation.inputId);
var value = (inputValue is double
? inputValue
: animation.blendAnimation.input?.value) ??

5
lib/src/rive_core/animation/blend_state_instance.dart
View File

@ -1,10 +1,9 @@
import 'dart:collection';
import 'package:rive/src/core/core.dart';
import 'package:rive/src/rive_core/animation/blend_animation.dart';
import 'package:rive/src/rive_core/animation/blend_state.dart';
import 'package:rive/src/rive_core/animation/linear_animation_instance.dart';
import 'package:rive/src/rive_core/animation/state_instance.dart';
import 'package:rive/src/rive_core/state_machine_controller.dart';
/// Individual animation in a blend state instance.
class BlendStateAnimationInstance<T extends BlendAnimation> {
@ -34,7 +33,7 @@ abstract class BlendStateInstance<T extends BlendState<K>,
@mustCallSuper
@override
void advance(double seconds, HashMap<int, dynamic> inputValues) {
void advance(double seconds, StateMachineController controller) {
_keepGoing = false;
// Advance all the animations in the blend state
for (final animation in animationInstances) {

31
lib/src/rive_core/animation/event_bool_change.dart Normal file
View File

@ -0,0 +1,31 @@
import 'package:rive/src/generated/animation/event_bool_change_base.dart';
import 'package:rive/src/rive_core/state_machine_controller.dart';
export 'package:rive/src/generated/animation/event_bool_change_base.dart';
class EventBoolChange extends EventBoolChangeBase {
@override
void valueChanged(int from, int to) {}
@override
void perform(StateMachineController controller) {
switch (value) {
case 0:
controller.setInputValue(inputId, false);
break;
case 1:
controller.setInputValue(inputId, true);
break;
default:
// Toggle
dynamic existing = controller.getInputValue(inputId);
if (existing is bool) {
controller.setInputValue(inputId, !existing);
} else {
controller.setInputValue(inputId, true);
}
break;
}
}
}

61
lib/src/rive_core/animation/event_input_change.dart Normal file
View File

@ -0,0 +1,61 @@
import 'package:rive/src/core/core.dart';
import 'package:rive/src/generated/animation/event_input_change_base.dart';
import 'package:rive/src/rive_core/animation/state_machine.dart';
import 'package:rive/src/rive_core/animation/state_machine_event.dart';
import 'package:rive/src/rive_core/animation/state_machine_input.dart';
import 'package:rive/src/rive_core/state_machine_controller.dart';
export 'package:rive/src/generated/animation/event_input_change_base.dart';
abstract class EventInputChange extends EventInputChangeBase {
StateMachineInput _input = StateMachineInput.unknown;
StateMachineInput get input => _input;
set input(StateMachineInput value) {
if (value == _input) {
return;
}
_input = value;
inputId = _input.id;
}
@override
void inputIdChanged(int from, int to) {
input = context.resolveWithDefault(to, StateMachineInput.unknown);
}
@override
void onAdded() {}
@override
void onAddedDirty() {
input = context.resolveWithDefault(inputId, StateMachineInput.unknown);
}
/// Make the change to the input values.
void perform(StateMachineController controller);
@override
bool import(ImportStack importStack) {
var importer = importStack
.latest<StateMachineEventImporter>(StateMachineEventBase.typeKey);
if (importer == null) {
return false;
}
importer.addInputChange(this);
var stateMachineImporter =
importStack.latest<StateMachineImporter>(StateMachineBase.typeKey);
if (stateMachineImporter == null) {
return false;
}
if (inputId >= 0 && inputId < stateMachineImporter.machine.inputs.length) {
var found = stateMachineImporter.machine.inputs[inputId];
_input = found;
inputId = found.id;
}
return super.import(importStack);
}
}

13
lib/src/rive_core/animation/event_number_change.dart Normal file
View File

@ -0,0 +1,13 @@
import 'package:rive/src/generated/animation/event_number_change_base.dart';
import 'package:rive/src/rive_core/state_machine_controller.dart';
export 'package:rive/src/generated/animation/event_number_change_base.dart';
class EventNumberChange extends EventNumberChangeBase {
@override
void valueChanged(double from, double to) {}
@override
void perform(StateMachineController controller) =>
controller.setInputValue(inputId, value);
}

10
lib/src/rive_core/animation/event_trigger_change.dart Normal file
View File

@ -0,0 +1,10 @@
import 'package:rive/src/generated/animation/event_trigger_change_base.dart';
import 'package:rive/src/rive_core/state_machine_controller.dart';
export 'package:rive/src/generated/animation/event_trigger_change_base.dart';
class EventTriggerChange extends EventTriggerChangeBase {
@override
void perform(StateMachineController controller) =>
controller.setInputValue(inputId, true);
}

7
lib/src/rive_core/animation/state_instance.dart
View File

@ -1,7 +1,6 @@
import 'dart:collection';
import 'package:rive/src/core/core.dart';
import 'package:rive/src/rive_core/animation/layer_state.dart';
import 'package:rive/src/rive_core/state_machine_controller.dart';
/// Represents the instance of a [LayerState] which is being used in a
/// [LayerController] of a [StateMachineController]. Abstract representation of
@ -12,7 +11,7 @@ abstract class StateInstance {
StateInstance(this.state);
void advance(double seconds, HashMap<int, dynamic> inputValues);
void advance(double seconds, StateMachineController controller);
void apply(CoreContext core, double mix);
bool get keepGoing;
@ -25,7 +24,7 @@ abstract class StateInstance {
class SystemStateInstance extends StateInstance {
SystemStateInstance(LayerState state) : super(state);
@override
void advance(double seconds, HashMap<int, dynamic> inputValues) {}
void advance(double seconds, StateMachineController controller) {}
@override
void apply(CoreContext core, double mix) {}

3
lib/src/rive_core/animation/state_machine.dart
View File

@ -1,5 +1,6 @@
import 'package:rive/src/core/core.dart';
import 'package:rive/src/generated/animation/state_machine_base.dart';
import 'package:rive/src/rive_core/animation/state_machine_event.dart';
import 'package:rive/src/rive_core/animation/state_machine_input.dart';
import 'package:rive/src/rive_core/animation/state_machine_layer.dart';
import 'package:rive/src/rive_core/artboard.dart';
@ -11,6 +12,8 @@ class StateMachine extends StateMachineBase {
StateMachineComponents<StateMachineInput>();
final StateMachineComponents<StateMachineLayer> layers =
StateMachineComponents<StateMachineLayer>();
final StateMachineComponents<StateMachineEvent> events =
StateMachineComponents<StateMachineEvent>();
@override
bool import(ImportStack stack) {

3
lib/src/rive_core/animation/state_machine_bool.dart
View File

@ -7,7 +7,4 @@ class StateMachineBool extends StateMachineBoolBase {
@override
bool isValidType<T>() => T == bool;
@override
dynamic get controllerValue => value;
}

3
lib/src/rive_core/animation/state_machine_component.dart
View File

@ -7,7 +7,8 @@ import 'package:rive/src/rive_core/animation/state_machine.dart';
export 'package:rive/src/generated/animation/state_machine_component_base.dart';
/// Implemented by state machine inputs and layers.
abstract class StateMachineComponent extends StateMachineComponentBase {
abstract class StateMachineComponent
extends StateMachineComponentBase<RuntimeArtboard> {
StateMachine? _stateMachine;
StateMachine? get stateMachine => _stateMachine;
set stateMachine(StateMachine? machine) {

70
lib/src/rive_core/animation/state_machine_event.dart Normal file
View File

@ -0,0 +1,70 @@
import 'dart:collection';
import 'package:rive/src/core/core.dart';
import 'package:rive/src/generated/animation/state_machine_event_base.dart';
import 'package:rive/src/rive_core/animation/event_input_change.dart';
import 'package:rive/src/rive_core/animation/state_machine.dart';
import 'package:rive/src/rive_core/animation/state_machine_component.dart';
import 'package:rive/src/rive_core/node.dart';
import 'package:rive/src/rive_core/state_machine_controller.dart';
export 'package:rive/src/generated/animation/state_machine_event_base.dart';
enum EventType { enter, exit, down, up }
class StateMachineEvent extends StateMachineEventBase {
final InputChanges inputChanges = InputChanges();
Node? _target;
Node? get target => _target;
set target(Node? value) {
if (_target == value) {
return;
}
_target = value;
targetId = _target?.id ?? Core.missingId;
}
@override
String get name =>
super.name.isEmpty ? (_target?.name ?? 'Event') : super.name;
@override
void eventTypeValueChanged(int from, int to) {}
EventType get eventType => EventType.values[eventTypeValue];
set eventType(EventType value) => eventTypeValue = value.index;
@override
ListBase<StateMachineComponent> machineComponentList(StateMachine machine) =>
machine.events;
@override
void targetIdChanged(int from, int to) => target = context.resolve(to);
/// Called by rive_core to add an [EventInputChange] to this
/// [StateMachineEvent]. This should be @internal when it's supported.
bool internalAddInputChange(EventInputChange change) {
if (inputChanges.contains(change)) {
return false;
}
inputChanges.add(change);
return true;
}
/// Called by rive_core to remove an [EventInputChange] from this
/// [StateMachineEvent]. This should be @internal when it's supported.
bool internalRemoveInputChange(EventInputChange change) {
var removed = inputChanges.remove(change);
return removed;
}
void performChanges(StateMachineController controller) {
for (final change in inputChanges) {
change.perform(controller);
}
}
}

3
lib/src/rive_core/animation/state_machine_input.dart
View File

@ -1,3 +1,5 @@
// ignore_for_file: use_setters_to_change_properties
import 'dart:collection';
import 'package:rive/src/generated/animation/state_machine_input_base.dart';
@ -14,7 +16,6 @@ abstract class StateMachineInput extends StateMachineInputBase {
machine.inputs;
bool isValidType<T>() => false;
dynamic get controllerValue => null;
}
class _StateMachineUnknownInput extends StateMachineInput {}

6
lib/src/rive_core/animation/state_machine_number.dart
View File

@ -4,10 +4,4 @@ export 'package:rive/src/generated/animation/state_machine_number_base.dart';
class StateMachineNumber extends StateMachineNumberBase {
@override
void valueChanged(double from, double to) {}
@override
bool isValidType<T>() => T == double;
@override
dynamic get controllerValue => value;
}

14
lib/src/rive_core/animation/state_machine_trigger.dart
View File

@ -2,20 +2,8 @@ import 'package:rive/src/generated/animation/state_machine_trigger_base.dart';
export 'package:rive/src/generated/animation/state_machine_trigger_base.dart';
class StateMachineTrigger extends StateMachineTriggerBase {
bool _triggered = false;
bool get triggered => _triggered;
void fire() {
_triggered = true;
}
void reset() {
_triggered = false;
}
void fire() {}
@override
bool isValidType<T>() => T == bool;
@override
dynamic get controllerValue => _triggered;
}

5
lib/src/rive_core/animation/transition_trigger_condition.dart
View File

@ -18,11 +18,6 @@ class TransitionTriggerCondition extends TransitionTriggerConditionBase {
if (providedValue is bool && providedValue) {
return true;
}
var triggerInput = input as StateMachineTrigger;
if (triggerInput.triggered) {
return true;
}
return false;
}
}

2
lib/src/rive_core/artboard.dart
View File

@ -255,7 +255,7 @@ class Artboard extends ArtboardBase with ShapePaintContainer {
Vec2D renderTranslation(Vec2D worldTranslation) {
final wt = originWorld;
return Vec2D.add(Vec2D(), worldTranslation, wt);
return worldTranslation + wt;
}
/// Adds a component to the artboard. Good place for the artboard to check for

14
lib/src/rive_core/assets/file_asset.dart
View File

@ -17,8 +17,20 @@ abstract class FileAsset extends FileAssetBase {
if (backboardImporter == null) {
return false;
}
backboardImporter.addFileAsset(this);
// When we paste a FileAssetReference (e.g an Image) into a file, we want to
// prevent the asset being readded if there is already a copy of it in the
// file. We check if an asset with the same assetId already exists, and if
// so add it to the backboard importer, any fileAssetReferences will map
// to the existing asset instead.
for (final object in backboardImporter.backboard.assets) {
if (object is FileAsset && object.assetId == assetId) {
backboardImporter.addFileAsset(object);
return false;
}
}
backboardImporter.addFileAsset(this);
return super.import(stack);
}

7
lib/src/rive_core/assets/image_asset.dart
View File

@ -17,9 +17,14 @@ class ImageAsset extends ImageAssetBase {
@visibleForTesting
ImageAsset.fromTestImage(this._image);
@visibleForTesting
set image(ui.Image? image) {
_image = image;
}
@override
Future<void> decode(Uint8List bytes) {
var completer = Completer<void>();
final completer = Completer<void>();
ui.decodeImageFromList(bytes, (value) {
_image = value;
completer.complete();

4
lib/src/rive_core/bones/bone.dart
View File

@ -75,8 +75,6 @@ class Bone extends BoneBase {
Vec2D get tipWorldTranslation => getTipWorldTranslation(worldTransform);
Vec2D getTipWorldTranslation(Mat2D worldTransform) {
var tip = Vec2D();
Vec2D.transformMat2D(tip, Vec2D.fromValues(length, 0), worldTransform);
return tip;
return worldTransform.mapXY(length, 0);
}
}

4
lib/src/rive_core/bones/skin.dart
View File

@ -23,7 +23,9 @@ class Skin extends SkinBase {
void onDirty(int mask) {
// When the skin is dirty the deformed skinnable will need to regenerate its
// drawing commands.
(parent as Skinnable).markSkinDirty();
if (parent is Skinnable) {
(parent as Skinnable).markSkinDirty();
}
}
@override

4
lib/src/rive_core/bones/weight.dart
View File

@ -41,8 +41,8 @@ class Weight extends WeightBase {
tx += boneTransforms[startBoneTransformIndex++] * normalizedWeight;
ty += boneTransforms[startBoneTransformIndex++] * normalizedWeight;
}
result[0] = xx * rx + yx * ry + tx;
result[1] = xy * rx + yy * ry + ty;
result.x = xx * rx + yx * ry + tx;
result.y = xy * rx + yy * ry + ty;
}
static int encodedWeightValue(int index, int data) {

2
lib/src/rive_core/bones/weighted_vertex.dart
View File

@ -137,6 +137,8 @@ abstract class WeightedVertex {
int _getRawWeight(int weightIndex) => (weights >> (weightIndex * 8)) & 0xFF;
double getWeightAtIndex(int weightIndex) => _getRawWeight(weightIndex) / 255;
double getWeight(int tendonIndex) {
for (int i = 0; i < 4; i++) {
if (getTendon(i) == tendonIndex + 1) {

10
lib/src/rive_core/constraints/distance_constraint.dart
View File

@ -20,8 +20,8 @@ class DistanceConstraint extends DistanceConstraintBase {
var targetTranslation = target!.worldTranslation;
var ourTranslation = component.worldTranslation;
var toTarget = Vec2D.subtract(Vec2D(), ourTranslation, targetTranslation);
var currentDistance = Vec2D.length(toTarget);
var toTarget = ourTranslation - targetTranslation;
var currentDistance = toTarget.length();
switch (mode) {
case DistanceConstraintMode.closer:
if (currentDistance < distance) {
@ -45,10 +45,10 @@ class DistanceConstraint extends DistanceConstraintBase {
var world = component.worldTransform;
var position = Vec2D.add(Vec2D(), targetTranslation, toTarget);
var position = targetTranslation + toTarget;
Vec2D.lerp(position, ourTranslation, position, strength);
world[4] = position[0];
world[5] = position[1];
world[4] = position.x;
world[5] = position.y;
}
@override

37
lib/src/rive_core/constraints/ik_constraint.dart
View File

@ -176,11 +176,11 @@ class IKConstraint extends IKConstraintBase {
var pBT = Vec2D.clone(worldTargetTranslation);
// To target in worldspace
var toTarget = Vec2D.subtract(Vec2D(), pBT, pA);
var toTarget = pBT - pA;
// Note this is directional, hence not transformMat2d
Vec2D toTargetLocal = Vec2D.transformMat2(Vec2D(), toTarget, iworld);
var r = atan2(toTargetLocal[1], toTargetLocal[0]);
var r = toTargetLocal.atan2();
_constrainRotation(fk1, r);
fk1.angle = r;
@ -199,21 +199,21 @@ class IKConstraint extends IKConstraintBase {
var pB = b2.tipWorldTranslation;
var pBT = Vec2D.clone(worldTargetTranslation);
Vec2D.transformMat2D(pA, pA, iworld);
Vec2D.transformMat2D(pC, pC, iworld);
Vec2D.transformMat2D(pB, pB, iworld);
Vec2D.transformMat2D(pBT, pBT, iworld);
pA.apply(iworld);
pC.apply(iworld);
pB.apply(iworld);
pBT.apply(iworld);
// http://mathworld.wolfram.com/LawofCosines.html
var av = Vec2D.subtract(Vec2D(), pB, pC);
var a = Vec2D.length(av);
var av = pB - pC;
var a = av.length();
var bv = Vec2D.subtract(Vec2D(), pC, pA);
var b = Vec2D.length(bv);
var bv = pC - pA;
var b = bv.length();
var cv = Vec2D.subtract(Vec2D(), pBT, pA);
var c = Vec2D.length(cv);
var cv = pBT - pA;
var c = cv.length();
if (b == 0 || c == 0) {
// Cannot solve, would cause divide by zero. Usually means one of the two
// bones has a 0/0 scale.
@ -221,6 +221,7 @@ class IKConstraint extends IKConstraintBase {
}
var A = acos(max(-1, min(1, (-a * a + b * b + c * c) / (2 * b * c))));
var C = acos(max(-1, min(1, (a * a + b * b - c * c) / (2 * a * b))));
final cvAngle = cv.atan2();
double r1, r2;
if (b2.parent != b1) {
@ -231,23 +232,23 @@ class IKConstraint extends IKConstraintBase {
pC = firstChild.bone.worldTranslation;
pB = b2.tipWorldTranslation;
var avec = Vec2D.subtract(Vec2D(), pB, pC);
var avec = pB - pC;
var avLocal = Vec2D.transformMat2(Vec2D(), avec, secondChildWorldInverse);
var angleCorrection = -atan2(avLocal[1], avLocal[0]);
var angleCorrection = -avLocal.atan2();
if (invertDirection) {
r1 = atan2(cv[1], cv[0]) - A;
r1 = cvAngle - A;
r2 = -C + pi + angleCorrection;
} else {
r1 = A + atan2(cv[1], cv[0]);
r1 = A + cvAngle;
r2 = C - pi + angleCorrection;
}
} else if (invertDirection) {
r1 = atan2(cv[1], cv[0]) - A;
r1 = cvAngle - A;
r2 = -C + pi;
} else {
r1 = A + atan2(cv[1], cv[0]);
r1 = A + cvAngle;
r2 = C - pi;
}
_constrainRotation(fk1, r1);

45
lib/src/rive_core/constraints/translation_constraint.dart
View File

@ -27,34 +27,31 @@ class TranslationConstraint extends TranslationConstraintBase {
}
Mat2D.multiply(transformB, inverse, transformB);
}
translationB[0] = transformB[4];
translationB[1] = transformB[5];
translationB.x = transformB[4];
translationB.y = transformB[5];
if (!doesCopy) {
translationB[0] =
destSpace == TransformSpace.local ? 0 : translationA[0];
translationB.x = destSpace == TransformSpace.local ? 0 : translationA.x;
} else {
translationB[0] *= copyFactor;
translationB.x *= copyFactor;
if (offset) {
translationB[0] += component.x;
translationB.x += component.x;
}
}
if (!doesCopyY) {
translationB[1] =
destSpace == TransformSpace.local ? 0 : translationA[1];
translationB.y = destSpace == TransformSpace.local ? 0 : translationA.y;
} else {
translationB[1] *= copyFactorY;
translationB.y *= copyFactorY;
if (offset) {
translationB[1] += component.y;
translationB.y += component.y;
}
}
if (destSpace == TransformSpace.local) {
// Destination space is in parent transform coordinates.
Vec2D.transformMat2D(
translationB, translationB, parentWorld(component));
translationB.apply(parentWorld(component));
}
}
@ -66,29 +63,29 @@ class TranslationConstraint extends TranslationConstraintBase {
return;
}
// Get our target world coordinates in parent local.
Vec2D.transformMat2D(translationB, translationB, invert);
translationB.apply(invert);
}
if (max && translationB[0] > maxValue) {
translationB[0] = maxValue;
if (max && translationB.x > maxValue) {
translationB.x = maxValue;
}
if (min && translationB[0] < minValue) {
translationB[0] = minValue;
if (min && translationB.x < minValue) {
translationB.x = minValue;
}
if (maxY && translationB[1] > maxValueY) {
translationB[1] = maxValueY;
if (maxY && translationB.y > maxValueY) {
translationB.y = maxValueY;
}
if (minY && translationB[1] < minValueY) {
translationB[1] = minValueY;
if (minY && translationB.y < minValueY) {
translationB.y = minValueY;
}
if (clampLocal) {
// Transform back to world.
Vec2D.transformMat2D(translationB, translationB, parentWorld(component));
translationB.apply(parentWorld(component));
}
var ti = 1 - strength;
// Just interpolate world translation
transformA[4] = translationA[0] * ti + translationB[0] * strength;
transformA[5] = translationA[1] * ti + translationB[1] * strength;
transformA[4] = translationA.x * ti + translationB.x * strength;
transformA[5] = translationA.y * ti + translationB.y * strength;
}
}

108
lib/src/rive_core/math/aabb.dart
View File

@ -3,6 +3,32 @@ import 'dart:typed_data';
import 'package:rive/src/rive_core/math/mat2d.dart';
import 'package:rive/src/rive_core/math/vec2d.dart';
class IAABB {
int left, top, right, bottom;
IAABB(int l, int t, int r, int b)
: left = l,
top = t,
right = r,
bottom = b;
IAABB.zero()
: left = 0,
top = 0,
right = 0,
bottom = 0;
int get width => right - left;
int get height => bottom - top;
bool get empty => left >= right || top >= bottom;
IAABB inset(int dx, int dy) =>
IAABB(left + dx, top + dy, right - dx, bottom - dy);
IAABB offset(int dx, int dy) =>
IAABB(left + dx, top + dy, right + dx, bottom + dy);
}
class AABB {
Float32List _buffer;
@ -35,6 +61,14 @@ class AABB {
double get minY => _buffer[1];
double get maxY => _buffer[3];
double get left => _buffer[0];
double get top => _buffer[1];
double get right => _buffer[2];
double get bottom => _buffer[3];
double get centerX => (_buffer[0] + _buffer[2]) * 0.5;
double get centerY => (_buffer[1] + _buffer[3]) * 0.5;
AABB() : _buffer = Float32List.fromList([0.0, 0.0, 0.0, 0.0]);
AABB.clone(AABB a) : _buffer = Float32List.fromList(a.values);
@ -75,16 +109,24 @@ class AABB {
bool get isEmpty => !AABB.isValid(this);
Vec2D includePoint(Vec2D point, Mat2D? transform) {
var transformedPoint = transform == null
? point
: Vec2D.transformMat2D(Vec2D(), point, transform);
var transformedPoint = transform == null ? point : transform * point;
expandToPoint(transformedPoint);
return transformedPoint;
}
AABB inset(double dx, double dy) {
return AABB.fromValues(
_buffer[0] + dx, _buffer[1] + dy, _buffer[2] - dx, _buffer[3] - dy);
}
AABB offset(double dx, double dy) {
return AABB.fromValues(
_buffer[0] + dx, _buffer[1] + dy, _buffer[2] + dx, _buffer[3] + dy);
}
void expandToPoint(Vec2D point) {
var x = point[0];
var y = point[1];
var x = point.x;
var y = point.y;
if (x < _buffer[0]) {
_buffer[0] = x;
}
@ -100,7 +142,7 @@ class AABB {
}
AABB.fromMinMax(Vec2D min, Vec2D max)
: _buffer = Float32List.fromList([min[0], min[1], max[0], max[1]]);
: _buffer = Float32List.fromList([min.x, min.y, max.x, max.y]);
static bool areEqual(AABB a, AABB b) {
return a[0] == b[0] && a[1] == b[1] && a[2] == b[2] && a[3] == b[3];
@ -118,6 +160,11 @@ class AABB {
_buffer[idx] = v;
}
Vec2D center() {
return Vec2D.fromValues(
(this[0] + this[2]) * 0.5, (this[1] + this[3]) * 0.5);
}
static AABB copy(AABB out, AABB a) {
out[0] = a[0];
out[1] = a[1];
@ -126,21 +173,15 @@ class AABB {
return out;
}
static Vec2D center(Vec2D out, AABB a) {
out[0] = (a[0] + a[2]) * 0.5;
out[1] = (a[1] + a[3]) * 0.5;
return out;
}
static Vec2D size(Vec2D out, AABB a) {
out[0] = a[2] - a[0];
out[1] = a[3] - a[1];
out.x = a[2] - a[0];
out.y = a[3] - a[1];
return out;
}
static Vec2D extents(Vec2D out, AABB a) {
out[0] = (a[2] - a[0]) * 0.5;
out[1] = (a[3] - a[1]) * 0.5;
out.x = (a[2] - a[0]) * 0.5;
out.y = (a[3] - a[1]) * 0.5;
return out;
}
@ -158,8 +199,11 @@ class AABB {
return out;
}
static bool contains(AABB a, AABB b) {
return a[0] <= b[0] && a[1] <= b[1] && b[2] <= a[2] && b[3] <= a[3];
bool containsBounds(AABB b) {
return _buffer[0] <= b[0] &&
_buffer[1] <= b[1] &&
b[2] <= _buffer[2] &&
b[3] <= _buffer[3];
}
static bool isValid(AABB a) {
@ -191,14 +235,18 @@ class AABB {
return true;
}
static bool testOverlapPoint(AABB a, Vec2D b) {
var x = b[0];
var y = b[1];
return x >= a[0] && x <= a[2] && y >= a[1] && y <= a[3];
bool contains(Vec2D point) {
return point.x >= _buffer[0] &&
point.x <= _buffer[2] &&
point.y >= _buffer[1] &&
point.y <= _buffer[3];
}
AABB translate(Vec2D vec) => AABB.fromValues(_buffer[0] + vec[0],
_buffer[1] + vec[1], _buffer[2] + vec[0], _buffer[3] + vec[1]);
AABB translate(Vec2D vec) => AABB.fromValues(_buffer[0] + vec.x,
_buffer[1] + vec.y, _buffer[2] + vec.x, _buffer[3] + vec.y);
IAABB round() =>
IAABB(left.round(), top.round(), right.round(), bottom.round());
@override
String toString() {
@ -208,9 +256,9 @@ class AABB {
AABB transform(Mat2D matrix) {
return AABB.fromPoints([
minimum,
Vec2D.fromValues(maximum[0], minimum[1]),
Vec2D.fromValues(maximum.x, minimum.y),
maximum,
Vec2D.fromValues(minimum[0], maximum[1])
Vec2D.fromValues(minimum.x, maximum.y)
], transform: matrix);
}
@ -227,12 +275,10 @@ class AABB {
double maxY = -double.maxFinite;
for (final point in points) {
var p = transform == null
? point
: Vec2D.transformMat2D(Vec2D(), point, transform);
var p = transform == null ? point : transform * point;
double x = p[0];
double y = p[1];
final x = p.x;
final y = p.y;
if (x < minX) {
minX = x;
}

317
lib/src/rive_core/math/hit_test.dart Normal file
View File

@ -0,0 +1,317 @@
import 'dart:math';
import 'package:rive/src/rive_core/math/aabb.dart';
import 'package:rive/src/rive_core/math/mat2d.dart';
import 'package:rive/src/rive_core/math/path_types.dart';
import 'package:rive/src/rive_core/math/vec2d.dart';
import 'package:rive/src/rive_core/shapes/path.dart';
class HitTester implements PathInterface {
final List<int> _windings;
double _firstX, _firstY;
double _prevX, _prevY;
final double _offsetX, _offsetY;
final int _iwidth;
final double _height;
final double _tolerance;
bool _expectsMove;
HitTester(IAABB area, [double tolerance = 0.25])
: _windings =
List<int>.filled(area.width * area.height, 0, growable: false),
_firstX = 0,
_firstY = 0,
_prevX = 0,
_prevY = 0,
_offsetX = area.left.toDouble(),
_offsetY = area.top.toDouble(),
_iwidth = area.width,
_height = area.height.toDouble(),
_tolerance = tolerance,
_expectsMove = true;
void _appendLine(
double x0, double y0, double x1, double y1, double slope, int winding) {
assert(winding == 1 || winding == -1);
// we round to see which pixel centers we cross
final int top = y0.round();
final int bottom = y1.round();
if (top == bottom) {
return;
}
assert(top < bottom);
assert(top >= 0);
assert(bottom <= _height);
// we add 0.5 at the end to pre-round the values
double x = x0 + slope * (top - y0 + 0.5) + 0.5;
// start on the correct row
int index = top * _iwidth;
for (int y = top; y < bottom; ++y) {
int ix = max(x, 0.0).floor();
if (ix < _iwidth) {
_windings[index + ix] += winding;
}
x += slope;
index += _iwidth; // bump to next row
}
}
void _clipLine(double x0, double y0, double x1, double y1) {
if (y0 == y1) {
return;
}
int winding = 1;
if (y0 > y1) {
winding = -1;
double tmp = y0;
// ignore: parameter_assignments
y0 = y1;
// ignore: parameter_assignments
y1 = tmp;
}
// now we're monotonic in Y: y0 <= y1
if (y1 <= 0 || y0 >= _height) {
return;
}
final double m = (x1 - x0) / (y1 - y0);
if (y0 < 0) {
// ignore: parameter_assignments
x0 += m * (0 - y0);
// ignore: parameter_assignments
y0 = 0;
}
if (y1 > _height) {
// ignore: parameter_assignments
x1 += m * (_height - y1);
// ignore: parameter_assignments
y1 = _height;
}
assert(y0 <= y1);
assert(y0 >= 0);
assert(y1 <= _height);
_appendLine(x0, y0, x1, y1, m, winding);
}
@override
void moveTo(double x, double y) {
if (!_expectsMove) {
close();
}
_firstX = _prevX = x - _offsetX;
_firstY = _prevY = y - _offsetY;
_expectsMove = false;
}
@override
void lineTo(double x, double y) {
assert(!_expectsMove);
// ignore: parameter_assignments
x -= _offsetX;
// ignore: parameter_assignments
y -= _offsetY;
_clipLine(_prevX, _prevY, x, y);
_prevX = x;
_prevY = y;
}
bool _quickRejectY(double y0, double y1, double y2, double y3) {
final double h = _height;
return y0 <= 0 && y1 <= 0 && y2 <= 0 && y3 <= 0 ||
y0 >= h && y1 >= h && y2 >= h && y3 >= h;
}
/*
* Computes (conservatively) the number of line-segments needed
* to approximate this cubic and stay within the specified tolerance.
*/
static int _countCubicSegments(double ax, double ay, double bx, double by,
double cx, double cy, double dx, double dy, double tolerance) {
final abcX = ax - bx - bx + cx;
final abcY = ay - by - by + cy;
final bcdX = bx - cx - cx + dx;
final bcdY = by - cy - cy + dy;
final errX = max(abcX.abs(), bcdX.abs());
final errY = max(abcY.abs(), bcdY.abs());
final dist = sqrt(errX * errX + errY * errY);
const maxCurveSegments = 1 << 8; // just a big but finite value
final count = sqrt((3 * dist) / (4 * tolerance));
return max(1, min(count.ceil(), maxCurveSegments));
}
@override
void cubicTo(
double x1, double y1, double x2, double y2, double x3, double y3) {
assert(!_expectsMove);
// ignore: parameter_assignments
x1 -= _offsetX;
// ignore: parameter_assignments
x2 -= _offsetX;
// ignore: parameter_assignments
x3 -= _offsetX;
// ignore: parameter_assignments
y1 -= _offsetY;
// ignore: parameter_assignments
y2 -= _offsetY;
// ignore: parameter_assignments
y3 -= _offsetY;
if (_quickRejectY(_prevY, y1, y2, y3)) {
_prevX = x3;
_prevY = y3;
return;
}
final count =
_countCubicSegments(_prevX, _prevY, x1, y1, x2, y2, x3, y3, _tolerance);
final dt = 1.0 / count;
double t = dt;
// Compute simple coefficients for the cubic polynomial
// ... much faster to evaluate multiple times
// ... At^3 + Bt^2 + Ct + D
//
final aX = (x3 - _prevX) + 3 * (x1 - x2);
// final bX = 3 * ((x2 - x1) + (_prevX - x1));
final cX = 3 * (x1 - _prevX);
final dX = _prevX;
final aY = (y3 - _prevY) + 3 * (y1 - y2);
final bY = 3 * ((y2 - y1) + (_prevY - y1));
final cY = 3 * (y1 - _prevY);
final dY = _prevY;
// we don't need the first point eval(0) or the last eval(1)
double px = _prevX;
double py = _prevY;
for (int i = 1; i < count - 1; ++i) {
// Horner's method for evaluating the simple polynomial
final nx = ((aX * t + aX) * t + cX) * t + dX;
final ny = ((aY * t + bY) * t + cY) * t + dY;
_clipLine(px, py, nx, ny);
px = nx;
py = ny;
t += dt;
}
_clipLine(px, py, x3, y3);
_prevX = x3;
_prevY = y3;
}
@override
void close() {
assert(!_expectsMove);
_clipLine(_prevX, _prevY, _firstX, _firstY);
_expectsMove = true;
}
void move(Vec2D v) {
moveTo(v.x, v.y);
}
void line(Vec2D v) {
lineTo(v.x, v.y);
}
void cubic(Vec2D b, Vec2D c, Vec2D d) {
cubicTo(b.x, b.y, c.x, c.y, d.x, d.y);
}
void addRect(AABB r, Mat2D xform, PathDirection dir) {
final p0 = xform * Vec2D.fromValues(r.left, r.top);
final p1 = xform * Vec2D.fromValues(r.right, r.top);
final p2 = xform * Vec2D.fromValues(r.right, r.bottom);
final p3 = xform * Vec2D.fromValues(r.left, r.bottom);
move(p0);
if (dir == PathDirection.clockwise) {
line(p1);
line(p2);
line(p3);
} else {
assert(dir == PathDirection.counterclockwise);
line(p3);
line(p2);
line(p1);
}
close();
}
bool test([PathFillRule rule = PathFillRule.nonZero]) {
if (!_expectsMove) {
close();
}
final int mask = (rule == PathFillRule.nonZero) ? -1 : 1;
int nonzero = 0;
for (final w in _windings) {
nonzero |= w & mask;
}
return nonzero != 0;
}
}
/// A HitTester with a settable transform. We can roll this into HitTester if we
/// like it.
class TransformingHitTester extends HitTester {
TransformingHitTester(
IAABB area, [
double tolerance = 0.25,
]) : super(area, tolerance = tolerance);
Mat2D _transform = Mat2D();
bool _needsTransform = false;
Mat2D get transform => _transform;
set transform(Mat2D value) {
_transform = value;
_needsTransform = !value.isIdentity;
}
@override
void moveTo(double x, double y) {
if (!_needsTransform) {
super.moveTo(x, y);
return;
}
var v = _transform * Vec2D.fromValues(x, y);
super.moveTo(v.x, v.y);
}
@override
void lineTo(double x, double y) {
if (!_needsTransform) {
super.lineTo(x, y);
return;
}
var v = _transform * Vec2D.fromValues(x, y);
super.lineTo(v.x, v.y);
}
@override
void cubicTo(double ox, double oy, double ix, double iy, double x, double y) {
if (!_needsTransform) {
super.cubicTo(ox, oy, ix, iy, x, y);
return;
}
var o = _transform * Vec2D.fromValues(ox, oy);
var i = _transform * Vec2D.fromValues(ix, iy);
var p = _transform * Vec2D.fromValues(x, y);
super.cubicTo(o.x, o.y, i.x, i.y, p.x, p.y);
}
}

54
lib/src/rive_core/math/mat2d.dart
View File

@ -53,10 +53,16 @@ class Mat2D {
Mat2D.fromTranslation(Vec2D translation)
: _buffer = Float32List.fromList(
[1.0, 0.0, 0.0, 1.0, translation[0], translation[1]]);
[1.0, 0.0, 0.0, 1.0, translation.x, translation.y]);
Mat2D.fromTranslate(double x, double y)
: _buffer = Float32List.fromList([1.0, 0.0, 0.0, 1.0, x, y]);
Mat2D.fromScaling(Vec2D scaling)
: _buffer = Float32List.fromList([scaling[0], 0, 0, scaling[1], 0, 0]);
: _buffer = Float32List.fromList([scaling.x, 0, 0, scaling.y, 0, 0]);
Mat2D.fromScale(double x, double y)
: _buffer = Float32List.fromList([x, 0, 0, y, 0, 0]);
Mat2D.fromMat4(Float64List mat4)
: _buffer = Float32List.fromList(
@ -64,6 +70,13 @@ class Mat2D {
Mat2D.clone(Mat2D copy) : _buffer = Float32List.fromList(copy.values);
Vec2D mapXY(double x, double y) {
return Vec2D.fromValues(x * _buffer[0] + y * _buffer[2] + _buffer[4],
x * _buffer[1] + y * _buffer[3] + _buffer[5]);
}
Vec2D operator *(Vec2D v) => mapXY(v.x, v.y);
static Mat2D fromRotation(Mat2D o, double rad) {
double s = sin(rad);
double c = cos(rad);
@ -95,18 +108,11 @@ class Mat2D {
}
static void scale(Mat2D o, Mat2D a, Vec2D v) {
double a0 = a[0],
a1 = a[1],
a2 = a[2],
a3 = a[3],
a4 = a[4],
a5 = a[5],
v0 = v[0],
v1 = v[1];
o[0] = a0 * v0;
o[1] = a1 * v0;
o[2] = a2 * v1;
o[3] = a3 * v1;
double a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];
o[0] = a0 * v.x;
o[1] = a1 * v.x;
o[2] = a2 * v.y;
o[3] = a3 * v.y;
o[4] = a4;
o[5] = a5;
}
@ -165,8 +171,8 @@ class Mat2D {
o[1] = a[1];
o[2] = a[2];
o[3] = a[3];
o[4] = a[4] + b[0];
o[5] = a[5] + b[1];
o[4] = a[4] + b.x;
o[5] = a[5] + b.y;
return o;
}
@ -191,16 +197,16 @@ class Mat2D {
static void getScale(Mat2D m, Vec2D s) {
double x = m[0];
double y = m[1];
s[0] = x.sign * sqrt(x * x + y * y);
s.x = x.sign * sqrt(x * x + y * y);
x = m[2];
y = m[3];
s[1] = y.sign * sqrt(x * x + y * y);
s.y = y.sign * sqrt(x * x + y * y);
}
static Vec2D getTranslation(Mat2D m, Vec2D t) {
t[0] = m[4];
t[1] = m[5];
t.x = m[4];
t.y = m[5];
return t;
}
@ -213,6 +219,14 @@ class Mat2D {
mat[5] = 0.0;
}
bool get isIdentity =>
_buffer[0] == 1.0 &&
_buffer[1] == 0.0 &&
_buffer[2] == 0.0 &&
_buffer[3] == 1.0 &&
_buffer[4] == 0.0 &&
_buffer[5] == 0.0;
static void decompose(Mat2D m, TransformComponents result) {
double m0 = m[0], m1 = m[1], m2 = m[2], m3 = m[3];

22
lib/src/rive_core/math/path_types.dart Normal file
View File

@ -0,0 +1,22 @@
/*
* Copyright 2022 Rive
*/
enum PathFillRule {
nonZero,
evenOdd,
}
enum PathDirection {
clockwise,
counterclockwise,
}
enum PathVerb {
move,
line,
quad,
conicUnused, // so we match skia's order
cubic,
close,
}

12
lib/src/rive_core/math/segment2d.dart
View File

@ -33,8 +33,8 @@ class Segment2D {
// We cache these internally so we can call projectPoint multiple times in
// succession performantly.
if (_diff == null) {
_diff = Vec2D.subtract(Vec2D(), start, end);
lengthSquared = Vec2D.squaredLength(_diff!);
_diff = start - end;
lengthSquared = _diff!.squaredLength();
}
}
@ -49,8 +49,8 @@ class Segment2D {
if (lengthSquared == 0) {
return ProjectionResult(0, start);
}
double t = ((point[0] - start[0]) * (end[0] - start[0]) +
(point[1] - start[1]) * (end[1] - start[1])) /
double t = ((point.x - start.x) * (end.x - start.x) +
(point.y - start.y) * (end.y - start.y)) /
lengthSquared;
if (clamp) {
@ -66,8 +66,8 @@ class Segment2D {
return ProjectionResult(
t,
Vec2D.fromValues(
start[0] + t * (end[0] - start[0]),
start[1] + t * (end[1] - start[1]),
start.x + t * (end.x - start.x),
start.y + t * (end.y - start.y),
),
);
}

178
lib/src/rive_core/math/vec2d.dart
View File

@ -1,130 +1,143 @@
import 'dart:math';
import 'dart:math' as math;
import 'dart:typed_data';
import 'package:rive/src/rive_core/math/mat2d.dart';
import 'package:rive/src/utilities/utilities.dart';
class Vec2D {
final Float32List _buffer;
double x, y;
Float32List get values {
return _buffer;
Vec2D()
: x = 0,
y = 0;
Vec2D.clone(Vec2D copy)
: x = copy.x,
y = copy.y;
Vec2D.fromValues(double ox, double oy)
: x = ox,
y = oy;
double at(int index) {
if (index == 0) {
return x;
}
if (index == 1) {
return y;
}
throw RangeError('index out of range');
}
double operator [](int index) {
return _buffer[index];
void setAt(int index, double value) {
if (index == 0) {
x = value;
} else if (index == 1) {
y = value;
} else {
throw RangeError('index out of range');
}
}
void operator []=(int index, double value) {
_buffer[index] = value;
double length() => math.sqrt(x * x + y * y);
double squaredLength() => x * x + y * y;
double atan2() => math.atan2(y, x);
Vec2D operator +(Vec2D v) {
return Vec2D.fromValues(x + v.x, y + v.y);
}
Vec2D() : _buffer = Float32List.fromList([0.0, 0.0]);
Vec2D operator -(Vec2D v) {
return Vec2D.fromValues(x - v.x, y - v.y);
}
Vec2D.clone(Vec2D copy) : _buffer = Float32List.fromList(copy._buffer);
Vec2D.fromValues(double x, double y) : _buffer = Float32List.fromList([x, y]);
// ignore: avoid_returning_this
Vec2D apply(Mat2D m) {
final newX = x * m[0] + y * m[2] + m[4];
final newY = x * m[1] + y * m[3] + m[5];
x = newX;
y = newY;
return this;
}
static void copy(Vec2D o, Vec2D a) {
o[0] = a[0];
o[1] = a[1];
o.x = a.x;
o.y = a.y;
}
static void copyFromList(Vec2D o, Float32List a) {
o[0] = a[0];
o[1] = a[1];
o.x = a[0];
o.y = a[1];
}
static Vec2D transformMat2D(Vec2D o, Vec2D a, Mat2D m) {
double x = a[0];
double y = a[1];
o[0] = m[0] * x + m[2] * y + m[4];
o[1] = m[1] * x + m[3] * y + m[5];
final x = a.x;
final y = a.y;
o.x = m[0] * x + m[2] * y + m[4];
o.y = m[1] * x + m[3] * y + m[5];
return o;
}
static Vec2D transformMat2(Vec2D o, Vec2D a, Mat2D m) {
double x = a[0];
double y = a[1];
o[0] = m[0] * x + m[2] * y;
o[1] = m[1] * x + m[3] * y;
return o;
}
static Vec2D subtract(Vec2D o, Vec2D a, Vec2D b) {
o[0] = a[0] - b[0];
o[1] = a[1] - b[1];
return o;
}
static Vec2D add(Vec2D o, Vec2D a, Vec2D b) {
o[0] = a[0] + b[0];
o[1] = a[1] + b[1];
final x = a.x;
final y = a.y;
o.x = m[0] * x + m[2] * y;
o.y = m[1] * x + m[3] * y;
return o;
}
static Vec2D scale(Vec2D o, Vec2D a, double scale) {
o[0] = a[0] * scale;
o[1] = a[1] * scale;
o.x = a.x * scale;
o.y = a.y * scale;
return o;
}
static Vec2D lerp(Vec2D o, Vec2D a, Vec2D b, double f) {
double ax = a[0];
double ay = a[1];
o[0] = ax + f * (b[0] - ax);
o[1] = ay + f * (b[1] - ay);
double ax = a.x;
double ay = a.y;
o.x = ax + f * (b.x - ax);
o.y = ay + f * (b.y - ay);
return o;
}
static double length(Vec2D a) {
double x = a[0];
double y = a[1];
return sqrt(x * x + y * y);
}
static double squaredLength(Vec2D a) {
double x = a[0];
double y = a[1];
return x * x + y * y;
}
static double distance(Vec2D a, Vec2D b) {
double x = b[0] - a[0];
double y = b[1] - a[1];
return sqrt(x * x + y * y);
double x = b.x - a.x;
double y = b.y - a.y;
return math.sqrt(x * x + y * y);
}
static double squaredDistance(Vec2D a, Vec2D b) {
double x = b[0] - a[0];
double y = b[1] - a[1];
double x = b.x - a.x;
double y = b.y - a.y;
return x * x + y * y;
}
static Vec2D negate(Vec2D result, Vec2D a) {
result[0] = -1 * a[0];
result[1] = -1 * a[1];
result.x = -1 * a.x;
result.y = -1 * a.y;
return result;
}
static void normalize(Vec2D result, Vec2D a) {
double x = a[0];
double y = a[1];
double x = a.x;
double y = a.y;
double len = x * x + y * y;
if (len > 0.0) {
len = 1.0 / sqrt(len);
result[0] = a[0] * len;
result[1] = a[1] * len;
len = 1.0 / math.sqrt(len);
result.x = a.x * len;
result.y = a.y * len;
}
}
static double dot(Vec2D a, Vec2D b) {
return a[0] * b[0] + a[1] * b[1];
return a.x * b.x + a.y * b.y;
}
static Vec2D scaleAndAdd(Vec2D result, Vec2D a, Vec2D b, double scale) {
result[0] = a[0] + b[0] * scale;
result[1] = a[1] + b[1] * scale;
result.x = a.x + b.x * scale;
result.y = a.y + b.y * scale;
return result;
}
@ -133,9 +146,8 @@ class Vec2D {
if (l2 == 0) {
return 0;
}
return ((pt[0] - segmentPoint1[0]) * (segmentPoint2[0] - segmentPoint1[0]) +
(pt[1] - segmentPoint1[1]) *
(segmentPoint2[1] - segmentPoint1[1])) /
return ((pt.x - segmentPoint1.x) * (segmentPoint2.x - segmentPoint1.x) +
(pt.y - segmentPoint1.y) * (segmentPoint2.y - segmentPoint1.y)) /
l2;
}
@ -150,30 +162,30 @@ class Vec2D {
}
Vec2D ptOnSeg = Vec2D.fromValues(
segmentPoint1[0] + t * (segmentPoint2[0] - segmentPoint1[0]),
segmentPoint1[1] + t * (segmentPoint2[1] - segmentPoint1[1]),
segmentPoint1.x + t * (segmentPoint2.x - segmentPoint1.x),
segmentPoint1.y + t * (segmentPoint2.y - segmentPoint1.y),
);
return Vec2D.squaredDistance(ptOnSeg, pt);
}
static bool approximatelyEqual(Vec2D a, Vec2D b, {double threshold = 0.001}) {
var a0 = a[0], a1 = a[1];
var b0 = b[0], b1 = b[1];
return (a0 - b0).abs() <= threshold * max(1.0, max(a0.abs(), b0.abs())) &&
(a1 - b1).abs() <= threshold * max(1.0, max(a1.abs(), b1.abs()));
var a0 = a.x, a1 = a.y;
var b0 = b.x, b1 = b.y;
return (a0 - b0).abs() <=
threshold * math.max(1.0, math.max(a0.abs(), b0.abs())) &&
(a1 - b1).abs() <=
threshold * math.max(1.0, math.max(a1.abs(), b1.abs()));
}
@override
String toString() {
String v = _buffer[0].toString() + ', ';
return v + _buffer[1].toString();
return '$x, $y';
}
@override
bool operator ==(Object o) =>
o is Vec2D && _buffer[0] == o[0] && _buffer[1] == o[1];
bool operator ==(Object o) => o is Vec2D && x == o.x && y == o.y;
@override
int get hashCode => szudzik(_buffer[0].hashCode, _buffer[1].hashCode);
int get hashCode => szudzik(x.hashCode, y.hashCode);
}

7
lib/src/rive_core/node.dart
View File

@ -1,5 +1,4 @@
import 'package:rive/src/generated/node_base.dart';
import 'package:rive/src/rive_core/math/aabb.dart';
import 'package:rive/src/rive_core/math/vec2d.dart';
export 'package:rive/src/generated/node_base.dart';
@ -11,8 +10,8 @@ class Node extends NodeBase {
/// Sets the position of the Node
set translation(Vec2D pos) {
x = pos[0];
y = pos[1];
x = pos.x;
y = pos.y;
}
@override
@ -24,6 +23,4 @@ class Node extends NodeBase {
void yChanged(double from, double to) {
markTransformDirty();
}
AABB get localBounds => AABB.fromValues(x, y, x, y);
}

19
lib/src/rive_core/shapes/cubic_asymmetric_vertex.dart
View File

@ -18,11 +18,9 @@ class CubicAsymmetricVertex extends CubicAsymmetricVertexBase {
@override
Vec2D get outPoint {
return _outPoint ??= Vec2D.add(
Vec2D(),
translation,
Vec2D.fromValues(
cos(rotation) * outDistance, sin(rotation) * outDistance));
return _outPoint ??= Vec2D.fromValues(
translation.x + cos(rotation) * outDistance,
translation.y + sin(rotation) * outDistance);
}
@override
@ -32,11 +30,9 @@ class CubicAsymmetricVertex extends CubicAsymmetricVertexBase {
@override
Vec2D get inPoint {
return _inPoint ??= Vec2D.add(
Vec2D(),
translation,
Vec2D.fromValues(
cos(rotation) * -inDistance, sin(rotation) * -inDistance));
return _inPoint ??= Vec2D.fromValues(
translation.x + cos(rotation) * -inDistance,
translation.y + sin(rotation) * -inDistance);
}
@override
@ -46,8 +42,7 @@ class CubicAsymmetricVertex extends CubicAsymmetricVertexBase {
@override
String toString() {
return 'in ${inPoint[0]}, ${inPoint[1]} | ${translation.toString()} '
'| out ${outPoint[0]}, ${outPoint[1]}';
return 'in $inPoint | $translation | out $outPoint';
}
@override

24
lib/src/rive_core/shapes/cubic_detached_vertex.dart
View File

@ -25,17 +25,14 @@ class CubicDetachedVertex extends CubicDetachedVertexBase {
InternalCoreHelper.markValid(this);
this.x = x;
this.y = y;
this.inPoint = Vec2D.fromValues(inX ?? inPoint![0], inY ?? inPoint![1]);
this.outPoint =
Vec2D.fromValues(outX ?? outPoint![0], outY ?? outPoint![1]);
this.inPoint = Vec2D.fromValues(inX ?? inPoint!.x, inY ?? inPoint!.y);
this.outPoint = Vec2D.fromValues(outX ?? outPoint!.x, outY ?? outPoint!.y);
}
@override
Vec2D get outPoint => _outPoint ??= Vec2D.add(
Vec2D(),
translation,
Vec2D.fromValues(
cos(outRotation) * outDistance, sin(outRotation) * outDistance));
Vec2D get outPoint => _outPoint ??= Vec2D.fromValues(
translation.x + cos(outRotation) * outDistance,
translation.y + sin(outRotation) * outDistance);
@override
set outPoint(Vec2D value) {
@ -43,11 +40,9 @@ class CubicDetachedVertex extends CubicDetachedVertexBase {
}
@override
Vec2D get inPoint => _inPoint ??= Vec2D.add(
Vec2D(),
translation,
Vec2D.fromValues(
cos(inRotation) * inDistance, sin(inRotation) * inDistance));
Vec2D get inPoint => _inPoint ??= Vec2D.fromValues(
translation.x + cos(inRotation) * inDistance,
translation.y + sin(inRotation) * inDistance);
@override
set inPoint(Vec2D value) {
@ -56,8 +51,7 @@ class CubicDetachedVertex extends CubicDetachedVertexBase {
@override
String toString() {
return 'in ${inPoint[0]}, ${inPoint[1]} | ${translation.toString()} '
'| out ${outPoint[0]}, ${outPoint[1]}';
return 'in $inPoint | $translation | out $outPoint';
}
@override

17
lib/src/rive_core/shapes/cubic_mirrored_vertex.dart
View File

@ -20,8 +20,9 @@ class CubicMirroredVertex extends CubicMirroredVertexBase {
@override
Vec2D get outPoint {
return _outPoint ??= Vec2D.add(Vec2D(), translation,
Vec2D.fromValues(cos(rotation) * distance, sin(rotation) * distance));
return _outPoint ??= Vec2D.fromValues(
translation.x + cos(rotation) * distance,
translation.y + sin(rotation) * distance);
}
@override
@ -31,20 +32,20 @@ class CubicMirroredVertex extends CubicMirroredVertexBase {
@override
Vec2D get inPoint {
return _inPoint ??= Vec2D.add(Vec2D(), translation,
Vec2D.fromValues(cos(rotation) * -distance, sin(rotation) * -distance));
return _inPoint ??= Vec2D.fromValues(
translation.x + cos(rotation) * -distance,
translation.y + sin(rotation) * -distance);
}
@override
set inPoint(Vec2D value) {
var diffIn = Vec2D.fromValues(value[0] - x, value[1] - y);
outPoint = Vec2D.subtract(Vec2D(), translation, diffIn);
var diffIn = Vec2D.fromValues(value.x - x, value.y - y);
outPoint = translation - diffIn;
}
@override
String toString() {
return 'in ${inPoint[0]}, ${inPoint[1]} | ${translation.toString()} '
'| out ${outPoint[0]}, ${outPoint[1]}';
return 'in $inPoint | $translation | out $outPoint';
}
@override

6
lib/src/rive_core/shapes/cubic_vertex.dart
View File

@ -24,9 +24,9 @@ abstract class CubicVertex extends CubicVertexBase {
void deform(Mat2D world, Float32List boneTransforms) {
super.deform(world, boneTransforms);
Weight.deform(outPoint[0], outPoint[1], weight!.outIndices,
weight!.outValues, world, boneTransforms, weight!.outTranslation);
Weight.deform(inPoint[0], inPoint[1], weight!.inIndices, weight!.inValues,
Weight.deform(outPoint.x, outPoint.y, weight!.outIndices, weight!.outValues,
world, boneTransforms, weight!.outTranslation);
Weight.deform(inPoint.x, inPoint.y, weight!.inIndices, weight!.inValues,
world, boneTransforms, weight!.inTranslation);
}
}

9
lib/src/rive_core/shapes/image.dart
View File

@ -20,7 +20,6 @@ class Image extends ImageBase
Mesh? get mesh => _mesh;
bool get hasMesh => _mesh != null;
@override
AABB get localBounds {
if (hasMesh && _mesh!.draws) {
return _mesh!.bounds;
@ -122,5 +121,11 @@ class Image extends ImageBase
@override
Skinnable<MeshVertex>? get skinnable => _mesh;
Mat2D get renderTransform => _mesh?.worldTransform ?? worldTransform;
Mat2D get renderTransform {
var mesh = _mesh;
if (mesh != null && mesh.draws) {
return mesh.worldTransform;
}
return worldTransform;
}
}

12
lib/src/rive_core/shapes/mesh.dart
View File

@ -21,6 +21,7 @@ class Mesh extends MeshBase with Skinnable<MeshVertex> {
// be in world space.
final List<MeshVertex> _vertices = [];
List<MeshVertex> get vertices => _vertices;
ui.Vertices? _uiVertices;
@ -60,6 +61,7 @@ class Mesh extends MeshBase with Skinnable<MeshVertex> {
return false;
}
}
return true;
}
@ -101,7 +103,7 @@ class Mesh extends MeshBase with Skinnable<MeshVertex> {
for (final vertex in _vertices) {
var point = vertex.renderTranslation;
vertices.add(ui.Offset(point[0], point[1]));
vertices.add(ui.Offset(point.x, point.y));
bounds.expandToPoint(point);
uv.add(ui.Offset(vertex.u, vertex.v));
}
@ -144,14 +146,6 @@ class Mesh extends MeshBase with Skinnable<MeshVertex> {
@override
void markSkinDirty() => addDirt(ComponentDirt.vertices);
@override
bool addDirt(int value, {bool recurse = false}) {
if (value == ComponentDirt.vertices) {
// throw 'why';
}
return super.addDirt(value, recurse: recurse);
}
Mat2D get worldTransform =>
skin != null ? Mat2D.identity : transformComponent.worldTransform;

5
lib/src/rive_core/shapes/mesh_vertex.dart
View File

@ -1,16 +1,11 @@
import 'package:rive/src/generated/shapes/mesh_vertex_base.dart';
import 'package:rive/src/rive_core/node.dart';
import 'package:rive/src/rive_core/shapes/mesh.dart';
import 'package:rive/src/rive_core/transform_component.dart';
export 'package:rive/src/generated/shapes/mesh_vertex_base.dart';
class MeshVertex extends MeshVertexBase {
Mesh? get mesh => parent as Mesh?;
TransformComponent get transformComponent =>
mesh?.transformComponent ?? Node();
@override
bool validate() => super.validate() && parent is Mesh;

8
lib/src/rive_core/shapes/paint/linear_gradient.dart
View File

@ -101,10 +101,10 @@ class LinearGradient extends LinearGradientBase with ShapePaintMutator {
// Get the start and end of the gradient in world coordinates (world
// transform of the shape).
var world = shapePaintContainer!.worldTransform;
var worldStart = Vec2D.transformMat2D(Vec2D(), start, world);
var worldEnd = Vec2D.transformMat2D(Vec2D(), end, world);
paint.shader = makeGradient(ui.Offset(worldStart[0], worldStart[1]),
ui.Offset(worldEnd[0], worldEnd[1]), colors, colorPositions);
var worldStart = world * start;
var worldEnd = world * end;
paint.shader = makeGradient(ui.Offset(worldStart.x, worldStart.y),
ui.Offset(worldEnd.x, worldEnd.y), colors, colorPositions);
} else {
paint.shader =
makeGradient(startOffset, endOffset, colors, colorPositions);

304
lib/src/rive_core/shapes/path.dart
View File

@ -5,6 +5,7 @@ import 'package:rive/src/generated/shapes/path_base.dart';
import 'package:rive/src/rive_core/component.dart';
import 'package:rive/src/rive_core/component_dirt.dart';
import 'package:rive/src/rive_core/component_flags.dart';
import 'package:rive/src/rive_core/math/aabb.dart';
import 'package:rive/src/rive_core/math/circle_constant.dart';
import 'package:rive/src/rive_core/math/mat2d.dart';
import 'package:rive/src/rive_core/math/vec2d.dart';
@ -110,6 +111,11 @@ abstract class Path extends PathBase {
bool _buildPath() {
_isValid = true;
_renderPath.reset();
return buildPath(_renderPath);
}
/// Pour the path commands into a PathInterface [path].
bool buildPath(PathInterface path) {
List<PathVertex> vertices = this.vertices;
var length = vertices.length;
if (length < 2) {
@ -127,15 +133,15 @@ abstract class Path extends PathBase {
if (firstPoint is CubicVertex) {
startIsCubic = prevIsCubic = true;
var inPoint = firstPoint.renderIn;
startInX = inPoint[0];
startInY = inPoint[1];
startInX = inPoint.x;
startInY = inPoint.y;
var outPoint = firstPoint.renderOut;
outX = outPoint[0];
outY = outPoint[1];
outX = outPoint.x;
outY = outPoint.y;
var translation = firstPoint.renderTranslation;
startX = translation[0];
startY = translation[1];
_renderPath.moveTo(startX, startY);
startX = translation.x;
startY = translation.y;
path.moveTo(startX, startY);
} else {
startIsCubic = prevIsCubic = false;
var point = firstPoint as StraightVertex;
@ -146,25 +152,27 @@ abstract class Path extends PathBase {
var pos = point.renderTranslation;
var toPrev = Vec2D.subtract(Vec2D(),
prev is CubicVertex ? prev.renderOut : prev.renderTranslation, pos);
var toPrevLength = Vec2D.length(toPrev);
toPrev[0] /= toPrevLength;
toPrev[1] /= toPrevLength;
var toPrev =
(prev is CubicVertex ? prev.renderOut : prev.renderTranslation) -
pos;
var toPrevLength = toPrev.length();
toPrev.x /= toPrevLength;
toPrev.y /= toPrevLength;
var next = vertices[1];
var toNext = Vec2D.subtract(Vec2D(),
next is CubicVertex ? next.renderIn : next.renderTranslation, pos);
var toNextLength = Vec2D.length(toNext);
toNext[0] /= toNextLength;
toNext[1] /= toNextLength;
var toNext =
(next is CubicVertex ? next.renderIn : next.renderTranslation) -
pos;
var toNextLength = toNext.length();
toNext.x /= toNextLength;
toNext.y /= toNextLength;
var renderRadius = min(toPrevLength, min(toNextLength, radius));
var translation = Vec2D.scaleAndAdd(Vec2D(), pos, toPrev, renderRadius);
_renderPath.moveTo(startInX = startX = translation[0],
startInY = startY = translation[1]);
path.moveTo(startInX = startX = translation.x,
startInY = startY = translation.y);
var outPoint = Vec2D.scaleAndAdd(
Vec2D(), pos, toPrev, icircleConstant * renderRadius);
@ -173,14 +181,14 @@ abstract class Path extends PathBase {
Vec2D(), pos, toNext, icircleConstant * renderRadius);
var posNext = Vec2D.scaleAndAdd(Vec2D(), pos, toNext, renderRadius);
_renderPath.cubicTo(outPoint[0], outPoint[1], inPoint[0], inPoint[1],
outX = posNext[0], outY = posNext[1]);
path.cubicTo(outPoint.x, outPoint.y, inPoint.x, inPoint.y,
outX = posNext.x, outY = posNext.y);
prevIsCubic = false;
} else {
var translation = point.renderTranslation;
outX = translation[0];
outY = translation[1];
_renderPath.moveTo(startInX = startX = outX, startInY = startY = outY);
outX = translation.x;
outY = translation.y;
path.moveTo(startInX = startX = outX, startInY = startY = outY);
}
}
@ -190,13 +198,13 @@ abstract class Path extends PathBase {
if (vertex is CubicVertex) {
var inPoint = vertex.renderIn;
var translation = vertex.renderTranslation;
_renderPath.cubicTo(
outX, outY, inPoint[0], inPoint[1], translation[0], translation[1]);
path.cubicTo(
outX, outY, inPoint.x, inPoint.y, translation.x, translation.y);
prevIsCubic = true;
var outPoint = vertex.renderOut;
outX = outPoint[0];
outY = outPoint[1];
outX = outPoint.x;
outY = outPoint.y;
} else {
var point = vertex as StraightVertex;
@ -204,31 +212,29 @@ abstract class Path extends PathBase {
if (radius > 0) {
var pos = point.renderTranslation;
var toPrev =
Vec2D.subtract(Vec2D(), Vec2D.fromValues(outX, outY), pos);
var toPrevLength = Vec2D.length(toPrev);
toPrev[0] /= toPrevLength;
toPrev[1] /= toPrevLength;
var toPrev = Vec2D.fromValues(outX - pos.x, outY - pos.y);
var toPrevLength = toPrev.length();
toPrev.x /= toPrevLength;
toPrev.y /= toPrevLength;
var next = vertices[(i + 1) % length];
var toNext = Vec2D.subtract(
Vec2D(),
next is CubicVertex ? next.renderIn : next.renderTranslation,
pos);
var toNextLength = Vec2D.length(toNext);
toNext[0] /= toNextLength;
toNext[1] /= toNextLength;
var toNext =
(next is CubicVertex ? next.renderIn : next.renderTranslation) -
pos;
var toNextLength = toNext.length();
toNext.x /= toNextLength;
toNext.y /= toNextLength;
var renderRadius = min(toPrevLength, min(toNextLength, radius));
var translation =
Vec2D.scaleAndAdd(Vec2D(), pos, toPrev, renderRadius);
if (prevIsCubic) {
_renderPath.cubicTo(outX, outY, translation[0], translation[1],
translation[0], translation[1]);
path.cubicTo(outX, outY, translation.x, translation.y,
translation.x, translation.y);
} else {
_renderPath.lineTo(translation[0], translation[1]);
path.lineTo(translation.x, translation.y);
}
var outPoint = Vec2D.scaleAndAdd(
@ -238,62 +244,252 @@ abstract class Path extends PathBase {
Vec2D(), pos, toNext, icircleConstant * renderRadius);
var posNext = Vec2D.scaleAndAdd(Vec2D(), pos, toNext, renderRadius);
_renderPath.cubicTo(outPoint[0], outPoint[1], inPoint[0], inPoint[1],
outX = posNext[0], outY = posNext[1]);
path.cubicTo(outPoint.x, outPoint.y, inPoint.x, inPoint.y,
outX = posNext.x, outY = posNext.y);
prevIsCubic = false;
} else if (prevIsCubic) {
var translation = point.renderTranslation;
var x = translation[0];
var y = translation[1];
_renderPath.cubicTo(outX, outY, x, y, x, y);
var x = translation.x;
var y = translation.y;
path.cubicTo(outX, outY, x, y, x, y);
prevIsCubic = false;
outX = x;
outY = y;
} else {
var translation = point.renderTranslation;
outX = translation[0];
outY = translation[1];
_renderPath.lineTo(outX, outY);
outX = translation.x;
outY = translation.y;
path.lineTo(outX, outY);
}
}
}
if (isClosed) {
if (prevIsCubic || startIsCubic) {
_renderPath.cubicTo(outX, outY, startInX, startInY, startX, startY);
path.cubicTo(outX, outY, startInX, startInY, startX, startY);
}
_renderPath.close();
path.close();
}
return true;
}
AABB get localBounds => _renderPath.preciseComputeBounds();
AABB computeBounds(Mat2D relativeTo) => preciseComputeBounds(
transform: Mat2D.multiply(
Mat2D(),
relativeTo,
pathTransform,
),
);
AABB preciseComputeBounds({
Mat2D? transform,
}) =>
_renderPath.preciseComputeBounds(
transform: transform,
);
bool get hasBounds => _renderPath.hasBounds;
@override
void pathFlagsChanged(int from, int to) => markPathDirty();
bool get isHidden => (pathFlags & ComponentFlags.hidden) != 0;
}
class RenderPath {
enum _PathCommand { moveTo, lineTo, cubicTo, close }
abstract class PathInterface {
void moveTo(double x, double y);
void lineTo(double x, double y);
void cubicTo(double ox, double oy, double ix, double iy, double x, double y);
void close();
}
class RenderPath implements PathInterface {
final ui.Path _uiPath = ui.Path();
ui.Path get uiPath => _uiPath;
final List<_PathCommand> _commands = [];
final List<double> _positions = [];
void reset() {
_commands.clear();
_positions.clear();
_uiPath.reset();
}
@override
void lineTo(double x, double y) {
_commands.add(_PathCommand.lineTo);
_positions.add(x);
_positions.add(y);
_uiPath.lineTo(x, y);
}
@override
void moveTo(double x, double y) {
_commands.add(_PathCommand.moveTo);
_positions.add(x);
_positions.add(y);
_uiPath.moveTo(x, y);
}
@override
void cubicTo(double ox, double oy, double ix, double iy, double x, double y) {
_commands.add(_PathCommand.cubicTo);
_positions.add(ox);
_positions.add(oy);
_positions.add(ix);
_positions.add(iy);
_positions.add(x);
_positions.add(y);
_uiPath.cubicTo(ox, oy, ix, iy, x, y);
}
void move(Vec2D v) {
moveTo(v.x, v.y);
}
void line(Vec2D v) {
lineTo(v.x, v.y);
}
void cubic(Vec2D b, Vec2D c, Vec2D d) {
cubicTo(b.x, b.y, c.x, c.y, d.x, d.y);
}
@override
void close() {
_commands.add(_PathCommand.close);
_uiPath.close();
}
bool get isClosed =>
_commands.isNotEmpty && _commands.last == _PathCommand.close;
bool get hasBounds {
return _commands.length > 1;
}
AABB preciseComputeBounds({
Mat2D? transform,
}) {
if (_commands.isEmpty) {
return AABB.empty();
}
// Compute the extremas and use them to expand the bounds as detailed here:
// https://pomax.github.io/bezierinfo/#extremities
AABB bounds = AABB.empty();
var idx = 0;
var penPosition = Vec2D();
for (final command in _commands) {
switch (command) {
case _PathCommand.lineTo:
// Pen position already transformed...
bounds.includePoint(penPosition, null);
var to = Vec2D.fromValues(_positions[idx++], _positions[idx++]);
if (transform != null) {
to.apply(transform);
}
penPosition = bounds.includePoint(to, null);
break;
// We only do moveTo at the start, effectively always the start of the
// first line segment (so always include it).
case _PathCommand.moveTo:
penPosition.x = _positions[idx++];
penPosition.y = _positions[idx++];
if (transform != null) {
penPosition.apply(transform);
}
break;
case _PathCommand.cubicTo:
var outPoint = Vec2D.fromValues(_positions[idx++], _positions[idx++]);
var inPoint = Vec2D.fromValues(_positions[idx++], _positions[idx++]);
var point = Vec2D.fromValues(_positions[idx++], _positions[idx++]);
if (transform != null) {
outPoint.apply(transform);
inPoint.apply(transform);
point.apply(transform);
}
_expandBoundsForAxis(
bounds, 0, penPosition.x, outPoint.x, inPoint.x, point.x);
_expandBoundsForAxis(
bounds, 1, penPosition.y, outPoint.y, inPoint.y, point.y);
penPosition = point;
break;
case _PathCommand.close:
break;
}
}
return bounds;
}
}
/// Expand our bounds to a point (in normalized T space) on the Cubic.
void _expandBoundsToCubicPoint(AABB bounds, int component, double t, double a,
double b, double c, double d) {
if (t >= 0 && t <= 1) {
var ti = 1 - t;
double extremaY = ((ti * ti * ti) * a) +
((3 * ti * ti * t) * b) +
((3 * ti * t * t) * c) +
(t * t * t * d);
if (extremaY < bounds[component]) {
bounds[component] = extremaY;
}
if (extremaY > bounds[component + 2]) {
bounds[component + 2] = extremaY;
}
}
}
void _expandBoundsForAxis(AABB bounds, int component, double start, double cp1,
double cp2, double end) {
// Check start/end as cubic goes through those.
if (start < bounds[component]) {
bounds[component] = start;
}
if (start > bounds[component + 2]) {
bounds[component + 2] = start;
}
if (end < bounds[component]) {
bounds[component] = end;
}
if (end > bounds[component + 2]) {
bounds[component + 2] = end;
}
// Now check extremas.
// Find the first derivative
var a = 3 * (cp1 - start);
var b = 3 * (cp2 - cp1);
var c = 3 * (end - cp2);
var d = a - 2 * b + c;
// Solve roots for first derivative.
if (d != 0) {
var m1 = -sqrt(b * b - a * c);
var m2 = -a + b;
// First root.
_expandBoundsToCubicPoint(
bounds, component, -(m1 + m2) / d, start, cp1, cp2, end);
_expandBoundsToCubicPoint(
bounds, component, -(-m1 + m2) / d, start, cp1, cp2, end);
} else if (b != c && d == 0) {
_expandBoundsToCubicPoint(
bounds, component, (2 * b - c) / (2 * (b - c)), start, cp1, cp2, end);
}
// Derive the first derivative to get the 2nd and use the root of
// that (linear).
var d2a = 2 * (b - a);
var d2b = 2 * (c - b);
if (d2a != b) {
_expandBoundsToCubicPoint(
bounds, component, d2a / (d2a - d2b), start, cp1, cp2, end);
}
}

7
lib/src/rive_core/shapes/path_composer.dart
View File

@ -46,6 +46,12 @@ class PathComposer extends Component {
.mat4);
}
}
// If the world path doesn't get built, we should mark the bounds dirty
// here.
if (!buildWorldPath) {
shape.markBoundsDirty();
}
}
if (buildWorldPath) {
worldPath.reset();
@ -56,6 +62,7 @@ class PathComposer extends Component {
worldPath.addPath(path.uiPath, ui.Offset.zero,
matrix4: path.pathTransform.mat4);
}
shape.markBoundsDirty();
}
_fillPath = shape.fillInWorld ? worldPath : localPath;
}

81
lib/src/rive_core/shapes/shape.dart
View File

@ -3,6 +3,9 @@ import 'dart:ui' as ui;
import 'package:collection/collection.dart';
import 'package:rive/src/generated/shapes/shape_base.dart';
import 'package:rive/src/rive_core/component_dirt.dart';
import 'package:rive/src/rive_core/math/aabb.dart';
import 'package:rive/src/rive_core/math/hit_test.dart';
import 'package:rive/src/rive_core/math/mat2d.dart';
import 'package:rive/src/rive_core/shapes/paint/linear_gradient.dart' as core;
import 'package:rive/src/rive_core/shapes/paint/shape_paint_mutator.dart';
import 'package:rive/src/rive_core/shapes/paint/stroke.dart';
@ -29,6 +32,22 @@ class Shape extends ShapeBase with ShapePaintContainer {
ui.Path get fillPath => pathComposer.fillPath;
// Build the bounds on demand, more efficient than re-computing whenever they
// change as bounds rarely have bearing at runtime (they will in some cases
// with constraints eventually).
AABB? _worldBounds;
AABB? _localBounds;
AABB get worldBounds => _worldBounds ??= computeWorldBounds();
AABB get localBounds => _localBounds ??= computeLocalBounds();
/// Let the shape know that any further call to get world/local bounds will
/// need to rebuild the cached bounds.
void markBoundsDirty() {
_worldBounds = _localBounds = null;
}
bool addPath(Path path) {
paintChanged();
var added = paths.add(path);
@ -157,6 +176,59 @@ class Shape extends ShapeBase with ShapePaintContainer {
return paths.remove(path);
}
AABB computeWorldBounds() {
var boundsPaths = paths.where((path) => path.hasBounds);
if (boundsPaths.isEmpty) {
return AABB.fromMinMax(worldTranslation, worldTranslation);
}
var path = boundsPaths.first;
AABB worldBounds = path.preciseComputeBounds(transform: path.pathTransform);
for (final path in boundsPaths.skip(1)) {
AABB.combine(worldBounds, worldBounds,
path.preciseComputeBounds(transform: path.pathTransform));
}
return worldBounds;
}
AABB computeBounds(Mat2D relativeTo) {
var boundsPaths = paths.where((path) => path.hasBounds);
if (boundsPaths.isEmpty) {
return AABB();
}
var path = boundsPaths.first;
AABB localBounds = path.preciseComputeBounds(
transform: Mat2D.multiply(
Mat2D(),
relativeTo,
path.pathTransform,
),
);
for (final path in paths.skip(1)) {
AABB.combine(
localBounds,
localBounds,
path.preciseComputeBounds(
transform: Mat2D.multiply(
Mat2D(),
relativeTo,
path.pathTransform,
),
),
);
}
return localBounds;
}
AABB computeLocalBounds() {
var toTransform = Mat2D();
if (!Mat2D.invert(toTransform, worldTransform)) {
Mat2D.setIdentity(toTransform);
}
return computeBounds(toTransform);
}
@override
void blendModeValueChanged(int from, int to) => _markBlendModeDirty();
@ -225,4 +297,13 @@ class Shape extends ShapeBase with ShapePaintContainer {
super.buildDependencies();
pathComposer.buildDependencies();
}
/// Prep the [hitTester] for checking collision with the paths inside this
/// shape.
void fillHitTester(TransformingHitTester hitTester) {
for (final path in paths) {
hitTester.transform = path.pathTransform;
path.buildPath(hitTester);
}
}
}

4
lib/src/rive_core/shapes/vertex.dart
View File

@ -15,8 +15,8 @@ abstract class Vertex<T extends Weight> extends VertexBase {
Vec2D get renderTranslation => weight?.translation ?? translation;
set translation(Vec2D value) {
x = value[0];
y = value[1];
x = value.x;
y = value.y;
}
@override

152
lib/src/rive_core/state_machine_controller.dart
View File

@ -11,9 +11,16 @@ import 'package:rive/src/rive_core/animation/layer_state.dart';
import 'package:rive/src/rive_core/animation/linear_animation.dart';
import 'package:rive/src/rive_core/animation/state_instance.dart';
import 'package:rive/src/rive_core/animation/state_machine.dart';
import 'package:rive/src/rive_core/animation/state_machine_event.dart';
import 'package:rive/src/rive_core/animation/state_machine_layer.dart';
import 'package:rive/src/rive_core/animation/state_machine_trigger.dart';
import 'package:rive/src/rive_core/animation/state_transition.dart';
import 'package:rive/src/rive_core/math/aabb.dart';
import 'package:rive/src/rive_core/math/hit_test.dart';
import 'package:rive/src/rive_core/math/vec2d.dart';
import 'package:rive/src/rive_core/node.dart';
import 'package:rive/src/rive_core/rive_animation_controller.dart';
import 'package:rive/src/rive_core/shapes/shape.dart';
/// Callback signature for satate machine state changes
typedef OnStateChange = void Function(String, String);
@ -37,7 +44,10 @@ class LayerController {
/// Takes the state machine name and state name
final OnLayerStateChange? onLayerStateChange;
final StateMachineController controller;
LayerController(
this.controller,
this.layer, {
required this.core,
this.onLayerStateChange,
@ -94,10 +104,9 @@ class LayerController {
}
}
bool apply(StateMachineController machineController, CoreContext core,
double elapsedSeconds, HashMap<int, dynamic> inputValues) {
bool apply(CoreContext core, double elapsedSeconds) {
if (_currentState != null) {
_currentState!.advance(elapsedSeconds, inputValues);
_currentState!.advance(elapsedSeconds, controller);
}
_updateMix(elapsedSeconds);
@ -106,11 +115,11 @@ class LayerController {
// This didn't advance during our updateState, but it should now that we
// realize we need to mix it in.
if (!_holdAnimationFrom) {
_stateFrom!.advance(elapsedSeconds, inputValues);
_stateFrom!.advance(elapsedSeconds, controller);
}
}
for (int i = 0; updateState(inputValues, i != 0); i++) {
for (int i = 0; updateState(i != 0); i++) {
_apply(core);
if (i == 100) {
@ -131,27 +140,27 @@ class LayerController {
LinearAnimation? _holdAnimation;
double _holdTime = 0;
bool updateState(HashMap<int, dynamic> inputValues, bool ignoreTriggers) {
bool updateState(bool ignoreTriggers) {
if (isTransitioning) {
return false;
}
_waitingForExit = false;
if (tryChangeState(anyStateInstance, inputValues, ignoreTriggers)) {
if (tryChangeState(anyStateInstance, ignoreTriggers)) {
return true;
}
return tryChangeState(_currentState, inputValues, ignoreTriggers);
return tryChangeState(_currentState, ignoreTriggers);
}
bool tryChangeState(StateInstance? stateFrom,
HashMap<int, dynamic> inputValues, bool ignoreTriggers) {
bool tryChangeState(StateInstance? stateFrom, bool ignoreTriggers) {
if (stateFrom == null) {
return false;
}
var outState = _currentState;
for (final transition in stateFrom.state.transitions) {
var allowed = transition.allowed(stateFrom, inputValues, ignoreTriggers);
var allowed = transition.allowed(
stateFrom, controller._inputValues, ignoreTriggers);
if (allowed == AllowTransition.yes &&
_changeState(transition.stateTo, transition: transition)) {
// Take transition
@ -176,7 +185,7 @@ class LayerController {
}
if (outState is AnimationStateInstance) {
var spilledTime = outState.animationInstance.spilledTime;
_currentState?.advance(spilledTime, inputValues);
_currentState?.advance(spilledTime, controller);
}
_mix = 0;
@ -199,7 +208,7 @@ class LayerController {
class StateMachineController extends RiveAnimationController<CoreContext> {
final StateMachine stateMachine;
final inputValues = HashMap<int, dynamic>();
final _inputValues = HashMap<int, dynamic>();
final layerControllers = <LayerController>[];
/// Optional callback for state changes
@ -232,12 +241,15 @@ class StateMachineController extends RiveAnimationController<CoreContext> {
onStateChange?.call(stateMachine.name, stateName);
});
late List<_HitShape> hitShapes;
@override
bool init(CoreContext core) {
_clearLayerControllers();
for (final layer in stateMachine.layers) {
layerControllers.add(LayerController(
this,
layer,
core: core,
onLayerStateChange: _onStateChange,
@ -247,6 +259,29 @@ class StateMachineController extends RiveAnimationController<CoreContext> {
// Make sure triggers are all reset.
advanceInputs();
// Initialize all events.
HashMap<Shape, _HitShape> hitShapeLookup = HashMap<Shape, _HitShape>();
for (final event in stateMachine.events) {
// Resolve target on this artboard instance.
var node = core.resolve<Node>(event.targetId);
if (node == null) {
continue;
}
node.forAll((component) {
if (component is Shape) {
var hitShape = hitShapeLookup[component];
if (hitShape == null) {
hitShapeLookup[component] = hitShape = _HitShape(component);
}
hitShape.events.add(event);
}
// Keep iterating so we find all shapes.
return true;
});
}
hitShapes = hitShapeLookup.values.toList();
return super.init(core);
}
@ -257,17 +292,104 @@ class StateMachineController extends RiveAnimationController<CoreContext> {
}
@protected
void advanceInputs() {}
void advanceInputs() {
for (final input in stateMachine.inputs) {
if (input is StateMachineTrigger) {
_inputValues[input.id] = false;
}
}
}
dynamic getInputValue(int id) => _inputValues[id];
void setInputValue(int id, dynamic value) {
_inputValues[id] = value;
isActive = true;
}
@override
void apply(CoreContext core, double elapsedSeconds) {
bool keepGoing = false;
for (final layerController in layerControllers) {
if (layerController.apply(this, core, elapsedSeconds, inputValues)) {
if (layerController.apply(core, elapsedSeconds)) {
keepGoing = true;
}
}
advanceInputs();
isActive = keepGoing;
}
void _processEvent(Vec2D position, {EventType? hitEvent}) {
const hitRadius = 2;
var hitArea = IAABB(
(position.x - hitRadius).round(),
(position.y - hitRadius).round(),
(position.x + hitRadius).round(),
(position.y + hitRadius).round(),
);
for (final hitShape in hitShapes) {
// for (final hitShape in event.shapes) {
var shape = hitShape.shape;
var bounds = shape.worldBounds;
// Quick reject
bool isOver = false;
if (bounds.contains(position)) {
// Make hit tester.
var hitTester = TransformingHitTester(hitArea);
shape.fillHitTester(hitTester);
// TODO: figure out where we get the fill rule. We could get it from
// the Shape's first fill or do we want to store it on the event as a
// user-selectable value in the inspector?
// Just use bounds for now
isOver = hitTester.test();
}
bool hoverChange = hitShape.isHovered != isOver;
hitShape.isHovered = isOver;
// iterate all events associated with this hit shape
for (final event in hitShape.events) {
// Always update hover states regardless of which specific event type
// we're trying to trigger.
if (hoverChange) {
if (isOver && event.eventType == EventType.enter) {
event.performChanges(this);
isActive = true;
} else if (!isOver && event.eventType == EventType.exit) {
event.performChanges(this);
isActive = true;
}
}
if (isOver && hitEvent == event.eventType) {
event.performChanges(this);
isActive = true;
}
}
}
}
void pointerMove(Vec2D position) => _processEvent(position);
void pointerDown(Vec2D position) => _processEvent(
position,
hitEvent: EventType.down,
);
void pointerUp(Vec2D position) => _processEvent(
position,
hitEvent: EventType.up,
);
}
/// Representation of a Shape from the Artboard Instance and all the events it
/// triggers. Allows tracking hover and performing hit detection only once on
/// shapes that trigger multiple events.
class _HitShape {
Shape shape;
bool isHovered = false;
List<StateMachineEvent> events = [];
_HitShape(this.shape);
}

4
lib/src/rive_core/transform_component.dart
View File

@ -76,8 +76,8 @@ abstract class TransformComponent extends TransformComponentBase {
Vec2D get scale => Vec2D.fromValues(scaleX, scaleY);
set scale(Vec2D value) {
scaleX = value[0];
scaleY = value[1];
scaleX = value.x;
scaleY = value.y;
}
@mustCallSuper