module es {
    export class Sprite {
        public texture2D: egret.Texture;
        public readonly sourceRect: Rectangle;
        public readonly center: Vector2;
        public origin: Vector2;
        public readonly uvs: Rectangle = new Rectangle();

        constructor(texture: egret.Texture,
                    sourceRect: Rectangle = new Rectangle(0, 0, texture.textureWidth, texture.textureHeight),
                    origin: Vector2 = sourceRect.getHalfSize()) {
            this.texture2D = texture;
            this.sourceRect = sourceRect;
            this.center = new Vector2(sourceRect.width * 0.5, sourceRect.height * 0.5);
            this.origin = origin;

            let inverseTexW = 1 / texture.textureWidth;
            let inverseTexH = 1 / texture.textureHeight;

            this.uvs.x = sourceRect.x * inverseTexW;
            this.uvs.y = sourceRect.y * inverseTexH;
            this.uvs.width = sourceRect.width * inverseTexW;
            this.uvs.height = sourceRect.height * inverseTexH;
        }
    }
}