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Quellcode

Sprite.prototype.draw = function(canvas){
    if(!this.visible){
        return;
    }

    // transform
    canvas.translate(this.position.x+this.rotationPoint.x, this.position.y+this.rotationPoint.y);
    canvas.rotate(this.rotation*Math.PI/180);
    canvas.translate(-this.rotationPoint.x, -this.rotationPoint.y);
    canvas.scale(this.scale.x, this.scale.y);

    // draw
    if(this.clipOffset != undefined && this.clipSize != undefined){
        canvas.drawImage(this.texture, this.clipOffset.x, this.clipOffset.y, this.clipSize.x, this.clipSize.y, 0, 0, this.size.x, this.size.y);
    }
    else{
        canvas.drawImage(this.texture, 0, 0, this.size.x, this.size.y);
    }

    // reset
    canvas.setTransform(1, 0, 0, 1, 0, 0);
};