所以我正在研究两个值之间的补间,但不知道它们是位置还是缩放。因此我创建了一个Tween,它在更新循环/
上包含一个if语句if( params.type == 'position' ){
initial = {
x: params.object.position.x,
y: params.object.position.y,
z: params.object.position.z
}
target = {
x: params.target.x,
y: params.target.y,
z: params.target.z,
}
}else if( params.type == 'scale' ){
intial = {
x: params.object.scale.x,
y: params.object.scale.y,
z: params.object.scale.z
}
target = {
x: params.target.x,
y: params.target.y,
z: params.target.z,
}
}
var tween = new TWEEN.Tween( initial ).to( target , params.time * 1000 );
tween.easing( params.easing );
// Need to assign these for the update loop
tween.object = params.object;
tween.type = params.type;
tween.tweener = this;
tween.initial = initial;
tween.target = target;
tween.callback = params.callback;
tween.onUpdate(function( tween ){
if( this.type == 'position' ){
this.object.position.x = this.initial.x;
this.object.position.y = this.initial.y;
this.object.position.z = this.initial.z;
}else if( this.type == 'scale' ){
this.object.scale.x = this.initial.x;
this.object.scale.y = this.initial.y;
this.object.scale.z = this.initial.z;
}
if( this.initial.x == this.target.x ){
var i = this.tweener.tweens.indexOf( this );
this.tweener.tweens.splice( i , 1 );
this.callback();
}
});
这个问题是在onUpdate循环中,
this
指的是
tween.intial
而不是
tween
有没有办法在这种情况下引用补间而不是我实际上在补间?
提前感谢您的帮助! 艾萨克
答案 0 :(得分:0)
我最终在最后添加了一个绑定(我在javascript上的表现非常糟糕......)
tween.onUpdate(function(tween){
if(this.type =='position'){ this.object.position.x = this.initial.x; this.object.position.y = this.initial.y; this.object.position.z = this.initial.z; } else if(this.type =='scale'){ this.object.scale.x = this.initial.x; this.object.scale.y = this.initial.y; this.object.scale.z = this.initial.z; }
if(this.initial.x == this.target.x){
var i = this.tweener.tweens.indexOf( this );
this.tweener.tweens.splice( i , 1 );
this.callback();
}
}。bind(tween));