鱼图片左右移动时,设置鱼头朝向鼠标滑动的方向

//创建app
var app = new PIXI.Application(800,600);
document.body.appendChild(app.view);

//添加背景var bg = new PIXI.Sprite.fromImage("res/lianxi/yu2/bg.png");app.stage.addChild(bg);//添加小鱼var fish = new PIXI.Sprite.fromImage("res/lianxi/fish/fish.png");fish.anchor.set(0.5,0.5);fish.scale.x = 2;fish.scale.y = 2;fish.x = 100;fish.y = 200;app.stage.addChild(fish);//给小鱼添加鼠标事件bg.interactive = true;bg.on("mousemove",movefish);function movefish(event) { var pos = event.data.getLocalPosition(app.stage); fish.x = pos.x; fish.y = pos.y;}