flutter/flame
1
0
Fork 0
mirror of https://github.com/flame-engine/flame.git synced 2025-11-03 20:36:31 +08:00
Code Issues Packages Projects Releases Wiki Activity

Support line feed when create a sequenced animation from a single image source

Browse Source
This commit is contained in:
Liu Peng
2020-03-20 19:13:16 +08:00
parent 4ea67ca06b
commit afb4264107
2 changed files with 13 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
lib/animation.dart
View File

@ -55,6 +55,7 @@ class Animation {
///
/// From a single image source, it creates multiple sprites based on the parameters:
/// [amount]: how many sprites this animation is composed of
/// [amountPerRow]: how many sprites per row
/// [textureX]: x position on the original image to start (defaults to 0)
/// [textureY]: y position on the original image to start (defaults to 0)
/// [textureWidth]: width of each frame (defaults to null, that is, full width of the sprite sheet)
@ -66,19 +67,21 @@ class Animation {
Animation.sequenced(
String imagePath,
int amount, {
int amountPerRow,
double textureX = 0.0,
double textureY = 0.0,
double textureWidth,
double textureHeight,
double stepTime = 0.1,
this.loop = true,
}) {
}) : assert(amountPerRow == null || amount >= amountPerRow) {
amountPerRow ??= amount;
frames = List<Frame>(amount);
for (var i = 0; i < amount; i++) {
final Sprite sprite = Sprite(
imagePath,
x: textureX + i * textureWidth,
y: textureY,
x: textureX + (i % amountPerRow) * textureWidth,
y: textureY + (i ~/ amountPerRow) * textureHeight,
width: textureWidth,
height: textureHeight,
);
@ -91,18 +94,20 @@ class Animation {
String imagePath,
int amount,
List<double> stepTimes, {
int amountPerRow,
double textureX = 0.0,
double textureY = 0.0,
double textureWidth,
double textureHeight,
this.loop = true,
}) {
}) : assert(amountPerRow == null || amount >= amountPerRow) {
amountPerRow ??= amount;
frames = List<Frame>(amount);
for (var i = 0; i < amount; i++) {
final Sprite sprite = Sprite(
imagePath,
x: textureX + i * textureWidth,
y: textureY,
x: textureX + (i % amountPerRow) * textureWidth,
y: textureY + (i ~/ amountPerRow) * textureHeight,
width: textureWidth,
height: textureHeight,
);

2
lib/components/animation_component.dart
View File

@ -20,6 +20,7 @@ class AnimationComponent extends PositionComponent {
double height,
String imagePath,
int amount, {
int amountPerRow,
double textureX = 0.0,
double textureY = 0.0,
double textureWidth,
@ -33,6 +34,7 @@ class AnimationComponent extends PositionComponent {
animation = Animation.sequenced(
imagePath,
amount,
amountPerRow: amountPerRow,
textureX: textureX,
textureY: textureY,
textureWidth: textureWidth,