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Code Issues Packages Projects Releases Wiki Activity

Adding custom mouse cursors for flame (#935)

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* Adding custom mouse cursors for flame

* linting and adding fvm to gitignore

* PR suggestions

* Apply suggestions from code review

Co-authored-by: Luan Nico <luanpotter27@gmail.com>

Co-authored-by: Luan Nico <luanpotter27@gmail.com>
This commit is contained in:
Erick
2021-09-05 20:55:26 -03:00
committed by GitHub
parent c015af8bee
commit 5529869a76
9 changed files with 221 additions and 32 deletions
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14
examples/lib/stories/input/input.dart
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@ -1,5 +1,6 @@
import 'package:dashbook/dashbook.dart';
import 'package:flame/game.dart';
import 'package:flutter/material.dart';
import '../../commons/commons.dart';
import 'draggables.dart';
@ -7,6 +8,7 @@ import 'hoverables.dart';
import 'joystick.dart';
import 'joystick_advanced.dart';
import 'keyboard.dart';
import 'mouse_cursor.dart';
import 'mouse_movement.dart';
import 'multitap.dart';
import 'multitap_advanced.dart';
@ -26,6 +28,18 @@ void addInputStories(Dashbook dashbook) {
(_) => GameWidget(game: MouseMovementGame()),
codeLink: baseLink('input/mouse_movement.dart'),
)
..add(
'Mouse Cursor',
(_) => GameWidget(
game: MouseCursorGame(),
mouseCursor: SystemMouseCursors.move,
),
codeLink: baseLink('input/mouse_cursor.dart'),
info: '''
Example showcasing the ability to change the game cursor in runtime
hover the little square to see the cursor changing
''',
)
..add(
'Scroll',
(_) => GameWidget(game: ScrollGame()),

53
examples/lib/stories/input/mouse_cursor.dart Normal file
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@ -0,0 +1,53 @@
import 'package:flame/extensions.dart';
import 'package:flame/game.dart';
import 'package:flame/input.dart';
import 'package:flame/palette.dart';
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
class MouseCursorGame extends Game with MouseMovementDetector {
static const speed = 200;
static final Paint _blue = BasicPalette.blue.paint();
static final Paint _white = BasicPalette.white.paint();
static final Vector2 objSize = Vector2.all(150);
Vector2 position = Vector2(100, 100);
Vector2? target;
bool onTarget = false;
@override
void onMouseMove(PointerHoverInfo info) {
target = info.eventPosition.game;
}
Rect _toRect() => position.toPositionedRect(objSize);
@override
void render(Canvas canvas) {
canvas.drawRect(
_toRect(),
onTarget ? _blue : _white,
);
}
@override
void update(double dt) {
final target = this.target;
if (target != null) {
final hovering = _toRect().contains(target.toOffset());
if (hovering) {
if (!onTarget) {
//Entered
mouseCursor.value = SystemMouseCursors.grab;
}
} else {
if (onTarget) {
// Exited
mouseCursor.value = SystemMouseCursors.move;
}
}
onTarget = hovering;
}
}
}