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[engine] 优化 cc.Button 性能，interactable 未改变时不进行材质切换，减少 update 时需执行的逻辑

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SmallMain 2024-11-21 18:21:04 +08:00
parent f853ea7da3
commit a14c457602
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1 changed files with 16 additions and 14 deletions
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30
engine/cocos2d/core/components/CCButton.js
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@ -71,7 +71,7 @@ const State = cc.Enum({
/**
* !#en
* Button component. Can be pressed or clicked. Button has 4 Transition types:
*
*
* - Button.Transition.NONE // Button will do nothing
* - Button.Transition.COLOR // Button will change target's color
* - Button.Transition.SPRITE // Button will change target Sprite's sprite
@ -79,12 +79,12 @@ const State = cc.Enum({
*
* The button can bind events (but you must be on the button's node to bind events).<br/>
* The following events can be triggered on all platforms.
*
*
* - cc.Node.EventType.TOUCH_START // Press
* - cc.Node.EventType.TOUCH_MOVE // After pressing and moving
* - cc.Node.EventType.TOUCH_END // After pressing and releasing
* - cc.Node.EventType.TOUCH_CANCEL // Press to cancel
*
*
* The following events are only triggered on the PC platform:
*
* - cc.Node.EventType.MOUSE_DOWN
@ -100,7 +100,7 @@ const State = cc.Enum({
* 按钮组件。可以被按下，或者点击。
*
* 按钮可以通过修改 Transition 来设置按钮状态过渡的方式：
*
*
* - Button.Transition.NONE // 不做任何过渡
* - Button.Transition.COLOR // 进行颜色之间过渡
* - Button.Transition.SPRITE // 进行精灵之间过渡
@ -108,21 +108,21 @@ const State = cc.Enum({
*
* 按钮可以绑定事件（但是必须要在按钮的 Node 上才能绑定事件）：<br/>
* 以下事件可以在全平台上都触发：
*
*
* - cc.Node.EventType.TOUCH_START // 按下时事件
* - cc.Node.EventType.TOUCH_MOVE // 按住移动后事件
* - cc.Node.EventType.TOUCH_END // 按下后松开后事件
* - cc.Node.EventType.TOUCH_CANCEL // 按下取消事件
*
*
* 以下事件只在 PC 平台上触发：
*
*
* - cc.Node.EventType.MOUSE_DOWN // 鼠标按下时事件
* - cc.Node.EventType.MOUSE_MOVE // 鼠标按住移动后事件
* - cc.Node.EventType.MOUSE_ENTER // 鼠标进入目标事件
* - cc.Node.EventType.MOUSE_LEAVE // 鼠标离开目标事件
* - cc.Node.EventType.MOUSE_UP // 鼠标松开事件
* - cc.Node.EventType.MOUSE_WHEEL // 鼠标滚轮事件
*
*
* 用户可以通过获取 __点击事件__ 回调函数的参数 event 的 target 属性获取当前点击对象。
* @class Button
* @extends Component
@ -184,11 +184,13 @@ let Button = cc.Class({
interactable: {
default: true,
tooltip: CC_DEV && 'i18n:COMPONENT.button.interactable',
notify () {
this._updateState();
notify (oldValue) {
if (oldValue !== this.interactable) {
this._updateState();
if (!this.interactable) {
this._resetState();
if (!this.interactable) {
this._resetState();
}
}
},
animatable: false
@ -469,7 +471,7 @@ let Button = cc.Class({
if (this.disabledSprite) {
this.disabledSprite.ensureLoadTexture();
}
if (!CC_EDITOR) {
this._registerNodeEvent();
}
@ -581,7 +583,6 @@ let Button = cc.Class({
},
update (dt) {
let target = this._getTarget();
if (this._transitionFinished) return;
if (this.transition !== Transition.COLOR && this.transition !== Transition.SCALE) return;
@ -602,6 +603,7 @@ let Button = cc.Class({
}
// Skip if _originalScale is invalid
else if (this.transition === Transition.SCALE && this._originalScale) {
let target = this._getTarget();
target.scale = this._fromScale.lerp(this._toScale, ratio);
}