graphics - TypeError : THREE. Math.lerp 不是函数

Question

我正在寻找 WEBGL Three.js Games 的在线引用资料。
遇到了一个游戏，它的源代码对于提供它的人来说工作正常，但我收到一个错误
类型错误:THREE.Math.lerp 不是函数
使用此函数的代码段是:

function update(){
    //stats.update();
    //animate
    rollingGroundSphere.rotation.x += rollingSpeed;
    heroSphere.rotation.x -= heroRollingSpeed;
    if(heroSphere.position.y<=heroBaseY){
        jumping=false;
        bounceValue=(Math.random()*0.04)+0.005;
    }
    heroSphere.position.y+=bounceValue;
    heroSphere.position.x=THREE.Math.lerp(heroSphere.position.x,currentLane, 2*clock.getDelta());//clock.getElapsedTime());
    bounceValue-=gravity;
    if(clock.getElapsedTime()>treeReleaseInterval){
        clock.start();
        addPathTree();
        if(!hasCollided){
            score+=2*treeReleaseInterval;
            scoreText.innerHTML=score.toString();
        }
    }
    doTreeLogic();
    doExplosionLogic();
    render();
    requestAnimationFrame(update);//request next update
}

Answer 1

Math已更名为 MathUtils与 r113 .所以用下面的代码试试吧:

heroSphere.position.x=THREE.MathUtils.lerp(heroSphere.position.x,currentLane, 2*clock.getDelta());//clock.getElapsedTime());