Javascript 使用计数器循环动画(a帧动画混合器)?
我试图找到一种有效的方式来执行动画后,一个又一个动画播放“X”的次数 由于通过数组选择了随机动画,因此无法将我的动画编译为一个较长的GTLF/GLB动画 我遇到的问题是在代码完成后重复此代码 以下是我目前的做法:Javascript 使用计数器循环动画(a帧动画混合器)?,javascript,animation,three.js,aframe,Javascript,Animation,Three.js,Aframe,我试图找到一种有效的方式来执行动画后,一个又一个动画播放“X”的次数 由于通过数组选择了随机动画,因此无法将我的动画编译为一个较长的GTLF/GLB动画 我遇到的问题是在代码完成后重复此代码 以下是我目前的做法: // Counter (to determine when to execute multiple animations sequentially) var counter = 0; // No. counter needs to reach. Between 1 & 3 l
// Counter (to determine when to execute multiple animations sequentially)
var counter = 0;
// No. counter needs to reach. Between 1 & 3 loops
function randomIntFromInterval(min, max) {
return Math.floor(Math.random() * (max - min + 1) + min);
};
var countertrigger = randomIntFromInterval(1,3);
// Default animation for Character
character.setAttribute("animation-mixer", {clip: "animationA"});
character.addEventListener('animation-loop', function () {
if (character.getAttribute = character.getAttribute("animation-mixer", {clip: "animationA"})){
counter++;
if (counter === countertrigger){
character.setAttribute("animation-mixer", {clip: "animationB"});
character.addEventListener('animation-finished',function() {
if (character.getAttribute("animation-mixer").clip === "animationB"){
character.setAttribute("animation-mixer", {clip: "animationC"});
character.addEventListener('animation-finished',function() {
if (character.getAttribute("animation-mixer").clip === "animationC"){
character.setAttribute("animation-mixer", {clip: "animationA"});
// Resets idle counter
counter = 0;
// Resets/randomises the no. loops before next multiple animations execute
countertrigger = randomIntFromInterval(1,3);
};
});
};
});
};
};
});
每次发出
动画循环
,并且计数器===计数器触发器
,都会为动画完成
创建一个新的事件侦听器,您可能会以级联回调结束
有多种方法可以做到这一点,这里有一种方法:
- 保留一些助手(当前计数器、当前动画)
- 将逻辑保留在一个
回调-通过检查helper值来确定下一个循环中应该包含什么循环中
//空闲周期计数器
var计数器=0;
//不,柜台需要打开。在1和3个循环之间
函数randomIntFromInterval(最小,最大){
返回Math.floor(Math.random()*(max-min+1)+min);
};
var countertrigger=randomIntFromInterval(1,3);
//动画助手
var animations=[“animationA”、“animationB”、“animationC”]
var-clipId=0;
//启动动画
setAttribute(“动画混合器”,{clip:animations[clipId});
//在每个动画循环中。。。
character.addEventListener('animation-loop',function(){
//检查是否空闲,并且应该空闲更长时间
if(clipId==0&&counter
每个动画循环
都会创建新的侦听器。是否希望循环(1/3)个周期的a,然后是B->C?是否有一个简单的模型出现故障以测试动画状态?
// idle cycle counter
var counter = 0;
// No. counter needs to reach. Between 1 & 3 loops
function randomIntFromInterval(min, max) {
return Math.floor(Math.random() * (max - min + 1) + min);
};
var countertrigger = randomIntFromInterval(1,3);
// animation helpers
var animations = ["animationA", "animationB", "animationC"]
var clipId = 0;
// start the animation
character.setAttribute("animation-mixer", {clip: animations[clipId});
// upon each animation loop...
character.addEventListener('animation-loop', function () {
// check if idle, and should be idle longer
if (clipId === 0 && counter < countertrigger) {
counter++;
return;
}
// check if this was the last animation
if (clipId === (animations.length - 1)) {
// Reset helpers
clipId = 0;
counter = 1; // the animation will be played once within this callback
countertrigger = randomIntFromInterval(1,3);
} else {
clipId++
}
// play the next clip
character.setAttribute("animation-mixer", {clip: animations[clipId]});
}