JavaScript-Pool-Game-Tutorial/Assets.js at master · henshmi/JavaScript-Pool-Game-Tutorial · GitHub

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letsprites={};
letassetsStillLoading=0;

functionassetsLoadingLoop(callback){

if(assetsStillLoading){
requestAnimationFrame(assetsLoadingLoop.bind(this,callback));
}
else{
callback();
}

}

functionloadAssets(callback){

functionloadSprite(fileName){
assetsStillLoading++;

letspriteImage=newImage();
spriteImage.src="./assets/sprites/"+fileName;

spriteImage.onload=function(){
assetsStillLoading--;
}

returnspriteImage;
}

sprites.background=loadSprite('spr_background.png');
sprites.stick=loadSprite('spr_stick.png');
sprites.whiteBall=loadSprite('spr_whiteBall.png');
sprites.redBall=loadSprite('spr_redBall.png');
sprites.yellowBall=loadSprite('spr_yellowBall.png');
sprites.blackBall=loadSprite('spr_blackBall.png');


assetsLoadingLoop(callback);
}

functiongetBallSpriteByColor(color){

switch(color){

caseCOLOR.RED:
returnsprites.redBall;
caseCOLOR.YELLOW:
returnsprites.yellowBall;
caseCOLOR.BLACK:
returnsprites.blackBall;
caseCOLOR.WHITE:
returnsprites.whiteBall;
}
}