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news 2025/7/25 18:36:21

网站安全注意哪些问题吗,网络营销学校,有肌肉男与小姐姐做床上运动的网站,什么网站可以做发票验证前奏.业务背景这边想实现一个功能，项目中有一只猫猫的头会盯着逗猫棒移动。因为素材还没到所以这里使用了 spine 自带的猫头鹰。他的动画刚好挺有针对性：（关联上篇）https://blog.csdn.net/nicepainkiller/article/details/144…

前奏.业务背景

这边想实现一个功能，项目中有 一只猫 猫的头会盯着逗猫棒移动。因为素材还没到所以这里使用了 spine 自带的猫头鹰。他的动画刚好挺有针对性：（关联上篇）https://blog.csdn.net/nicepainkiller/article/details/144113214

一共有六组动画：

        idel 空闲动画全身都会动 多帧动画，

        blink 眨眼睛动画头不动 多帧动画

        其余几个动画只有有头会动 单帧动画只有一帧

    blink 眼睛在中间的动画会眨眼睛
    down 眼睛朝下看单帧
    left     眼睛朝左看单帧
    right   眼睛朝右看单帧
    up      眼睛朝上看单帧
    idel    空闲动画全身动

猫头鹰眼睛可以盯着屏幕物体移动，实现效果如下：

最初想的实现方式是：类似 Unity3D 有一个二位动画权重的东西。但是找遍 cocos creator API 发现没找到，

那么只能纯手撸了：

        思路就是动态控制动画层的权重，来显示不同动画（头上，头右，头下，头左）的播放权重。

实操1.逗猫棒位置计算

首先就确定一个屏幕可以拖动的元素，并且计算出一个区域，用来确定 向量 Vec2:

屏幕触点转屏幕坐标
根据屏幕坐标计算出用来表示范围的一个向量

核心代码：

//获取 触点坐标位置
touchMove(event: EventTouch) {//更新 拖拽元素位置console.log('touchMove');this.potion.x = event.getLocationX();this.potion.y = event.getLocationY();//触点坐标转 屏幕坐标this.worldPostion = this.camera.screenToWorld(this.potion);//屏幕坐标转 局部坐标this.node.position = this.nodeParent.getComponent(UITransform).convertToNodeSpaceAR(this.worldPostion);//console.log("this.node.position:", this.node.position);//计算向量this.localPostion.x = clamp(this.node.position.x, -this.range, this.range) / this.range;this.localPostion.y = clamp(this.node.position.y, -this.range, this.range) / this.range;//console.log("this.localPostion:", this.localPostion);this.spinMerge1.updateAnimation(this.localPostion);
}

功能完整代码：

import { _decorator, Component, Node, EventTouch, Camera, Vec3, UITransform, Vec2, clamp, director, view } from 'cc';
import { SpinMerge1 } from './SpinMerge1';
const { ccclass, property } = _decorator;@ccclass('TouchMove')
export class TouchMove extends Component {@property({ type: Node })private nodeParent: Node;@property({ type: Camera })private camera: Camera;//控制 Spine 动画的脚步@property({ type: SpinMerge1 })private spinMerge1: SpinMerge1;private potion: Vec3 = new Vec3();private worldPostion: Vec3 = new Vec3();private localPostion: Vec2 = new Vec2();private range: number;onLoad() {this.node.on(Node.EventType.TOUCH_START, this.touchStart, this);this.node.on(Node.EventType.TOUCH_MOVE, this.touchMove, this);this.node.on(Node.EventType.TOUCH_END, this.touchEnd, this)this.node.on(Node.EventType.TOUCH_CANCEL, this.touchCancel, this)}start() {this.range = view.getVisibleSize().width / 2;}//展示只有 在拖拽情况下才显示的 元素 equipmentFlytouchStart(event: EventTouch) {//Log.trace('touchStart');console.log('touchStart');}//获取 触点坐标位置touchMove(event: EventTouch) {//更新 拖拽元素位置console.log('touchMove');this.potion.x = event.getLocationX();this.potion.y = event.getLocationY();//触点坐标转 屏幕坐标this.worldPostion = this.camera.screenToWorld(this.potion);//屏幕坐标转 局部坐标this.node.position = this.nodeParent.getComponent(UITransform).convertToNodeSpaceAR(this.worldPostion);//console.log("this.node.position:", this.node.position);//计算向量this.localPostion.x = clamp(this.node.position.x, -this.range, this.range) / this.range;this.localPostion.y = clamp(this.node.position.y, -this.range, this.range) / this.range;//console.log("this.localPostion:", this.localPostion);this.spinMerge1.updateAnimation(this.localPostion);}//结束拖拽 隐藏拖拽元素touchCancel(event: EventTouch) {console.log('touchCancel');this.node.position = new Vec3();this.spinMerge1.resetAnimation();}//结束拖拽touchEnd(event: EventTouch) {console.log('touchEnd');this.node.position = new Vec3();this.spinMerge1.resetAnimation();}}

实操2.猫头鹰盯着逗猫棒

猫头随着物体移动的核心就是：

通过动画层混合 分别控制 头上，头右，头下，头左 动画权重，做到动态控制展示的权重。

核心代码：

public updateAnimation(vec2: Vec2) {//console.log('updateAnimation:', vec2);this.ver2Normal.x = Math.abs(vec2.x);this.ver2Normal.y = Math.abs(vec2.y);//右上if (vec2.x > 0 && vec2.y > 0) {this.trackleft.alpha = 0.0;this.trackdown.alpha = 0.0;this.trackright.alpha = this.ver2Normal.x;this.trackUp.alpha = clamp(this.ver2Normal.y, 0, 1 - this.ver2Normal.x);//右下} else if (vec2.x > 0 && vec2.y < 0) {this.trackUp.alpha = 0;this.trackleft.alpha = 0;this.trackright.alpha = this.ver2Normal.x;this.trackdown.alpha = clamp(this.ver2Normal.y, 0, 1 - this.ver2Normal.x);//左下} else if (vec2.x < 0 && vec2.y < 0) {this.trackUp.alpha = 0;this.trackright.alpha = 0;this.trackleft.alpha = this.ver2Normal.x;this.trackdown.alpha = clamp(this.ver2Normal.y, 0, 1 - this.ver2Normal.x);//左上} else if (vec2.x < 0 && vec2.y > 0) {this.trackright.alpha = 0;this.trackdown.alpha = 0;this.trackleft.alpha = this.ver2Normal.x;this.trackUp.alpha = clamp(this.ver2Normal.y, 0, 1 - this.ver2Normal.x);} else {this.trackUp.alpha = 0;this.trackright.alpha = 0;this.trackdown.alpha = 0;this.trackleft.alpha = 0;}}

完整代码：

import { _decorator, Component, Node, sp, Button, Vec2, clamp } from 'cc';
const { ccclass, property } = _decorator;@ccclass('SpinMerge1')
export class SpinMerge1 extends Component {@property({ type: sp.Skeleton })private spinAnimation: sp.Skeleton;private trackUp: sp.spine.TrackEntry;private trackright: sp.spine.TrackEntry;private trackdown: sp.spine.TrackEntry;private trackleft: sp.spine.TrackEntry;private ver2Normal: Vec2 = new Vec2();start() {this.spinAnimation.setAnimation(0, 'idle', true);//猫头鹰的动画名 left right 反了//所以我们这里的顺序是： 上 -> 右 -> 下 -> 左 this.trackUp = this.spinAnimation.setAnimation(1, 'up', true);this.trackright = this.spinAnimation.setAnimation(4, 'left', true);this.trackdown = this.spinAnimation.setAnimation(3, 'down', true);this.trackleft = this.spinAnimation.setAnimation(2, 'right', true);//眨眼睛动画this.spinAnimation.addAnimation(5, 'blink', true, 2);this.trackUp.alpha = 0;this.trackright.alpha = 0;this.trackdown.alpha = 0;this.trackleft.alpha = 0;}onBtnTop() {this.trackUp.alpha = 1;this.trackright.alpha = 0;this.trackdown.alpha = 0;this.trackleft.alpha = 0;}onBtnRight() {this.trackUp.alpha = 0;this.trackright.alpha = 1;this.trackdown.alpha = 0;this.trackleft.alpha = 0;}onBtnBottom() {this.trackUp.alpha = 0;this.trackright.alpha = 0;this.trackdown.alpha = 1;this.trackleft.alpha = 0;}onBtnleft() {this.trackUp.alpha = 0;this.trackright.alpha = 0;this.trackdown.alpha = 0;this.trackleft.alpha = 1;}onBtnRightTop() {this.trackleft.alpha = 0.0;this.trackdown.alpha = 0.0;this.trackright.alpha = 0.5;this.trackUp.alpha = 0.5;}onBtnRightBottom() {this.trackUp.alpha = 0;this.trackleft.alpha = 0;this.trackright.alpha = 0.5;this.trackdown.alpha = 0.5;}onBtnleftBottom() {this.trackUp.alpha = 0;this.trackright.alpha = 0;this.trackleft.alpha = 0.5;this.trackdown.alpha = 0.5;}onBtnleftTop() {this.trackdown.alpha = 0;this.trackright.alpha = 0;this.trackleft.alpha = 0.5;this.trackUp.alpha = 0.5;}public updateAnimation(vec2: Vec2) {//console.log('updateAnimation:', vec2);this.ver2Normal.x = Math.abs(vec2.x);this.ver2Normal.y = Math.abs(vec2.y);//右上if (vec2.x > 0 && vec2.y > 0) {this.trackleft.alpha = 0.0;this.trackdown.alpha = 0.0;this.trackright.alpha = this.ver2Normal.x;this.trackUp.alpha = clamp(this.ver2Normal.y, 0, 1 - this.ver2Normal.x);//右下} else if (vec2.x > 0 && vec2.y < 0) {this.trackUp.alpha = 0;this.trackleft.alpha = 0;this.trackright.alpha = this.ver2Normal.x;this.trackdown.alpha = clamp(this.ver2Normal.y, 0, 1 - this.ver2Normal.x);//左下} else if (vec2.x < 0 && vec2.y < 0) {this.trackUp.alpha = 0;this.trackright.alpha = 0;this.trackleft.alpha = this.ver2Normal.x;this.trackdown.alpha = clamp(this.ver2Normal.y, 0, 1 - this.ver2Normal.x);//左上} else if (vec2.x < 0 && vec2.y > 0) {this.trackright.alpha = 0;this.trackdown.alpha = 0;this.trackleft.alpha = this.ver2Normal.x;this.trackUp.alpha = clamp(this.ver2Normal.y, 0, 1 - this.ver2Normal.x);} else {this.trackUp.alpha = 0;this.trackright.alpha = 0;this.trackdown.alpha = 0;this.trackleft.alpha = 0;}}public resetAnimation() {this.trackUp.alpha = 0;this.trackright.alpha = 0;this.trackdown.alpha = 0;this.trackleft.alpha = 0;}}

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