SpriteAnimation.fromAsepriteData constructor

SpriteAnimation.fromAsepriteData(Image image, Map<String, dynamic> jsonData)

Automatically creates an Animation Object using animation data provided by the json file provided by Aseprite

imagePath: Source of the sprite sheet animation dataPath: Animation's exported data in json format

Implementation

SpriteAnimation.fromAsepriteData(
  Image image,
  Map<String, dynamic> jsonData,
) {
  final jsonFrames = jsonData['frames'] as Map<String, dynamic>;

  final frames = jsonFrames.values.map((dynamic value) {
    final map = value as Map;
    final frameData = map['frame'] as Map<String, dynamic>;
    final x = frameData['x'] as int;
    final y = frameData['y'] as int;
    final width = frameData['w'] as int;
    final height = frameData['h'] as int;

    final stepTime = (map['duration'] as int) / 1000;

    final sprite = Sprite(
      image,
      srcPosition: Vector2Extension.fromInts(x, y),
      srcSize: Vector2Extension.fromInts(width, height),
    );

    return SpriteAnimationFrame(sprite, stepTime);
  });

  this.frames = frames.toList();
  loop = true;
}