更新性能分析器及更改部分注释

extensions/cocos/cocos-ecs/assets/scripts/ecs/components/Velocity.ts

@@ -0,0 +1,77 @@
+import { Component } from '@esengine/ecs-framework';
+import { Vec3 } from 'cc';
+
+/**
+ * 速度组件
+ * 存储实体的移动速度和方向
+ */
+export class Velocity extends Component {
+    /** 速度向量 */
+    public velocity: Vec3 = new Vec3(0, 0, 0);
+    
+    /** 最大速度 */
+    public maxSpeed: number = 200;
+    
+    /** 摩擦力 (0-1, 1表示无摩擦) */
+    public friction: number = 0.98;
+    
+    constructor() {
+        super();
+    }
+    
+    /**
+     * 设置速度
+     */
+    public setVelocity(x: number, y: number, z: number = 0): void {
+        this.velocity.set(x, y, z);
+        this.clampToMaxSpeed();
+    }
+    
+    /**
+     * 添加速度
+     */
+    public addVelocity(x: number, y: number, z: number = 0): void {
+        this.velocity.x += x;
+        this.velocity.y += y;
+        this.velocity.z += z;
+        this.clampToMaxSpeed();
+    }
+    
+    /**
+     * 应用摩擦力
+     */
+    public applyFriction(): void {
+        this.velocity.multiplyScalar(this.friction);
+        
+        // 当速度很小时直接设为0，避免无限减小
+        if (this.velocity.length() < 0.1) {
+            this.velocity.set(0, 0, 0);
+        }
+    }
+    
+    /**
+     * 限制到最大速度
+     */
+    private clampToMaxSpeed(): void {
+        const currentSpeed = this.velocity.length();
+        if (currentSpeed > this.maxSpeed) {
+            this.velocity.normalize().multiplyScalar(this.maxSpeed);
+        }
+    }
+    
+    /**
+     * 获取当前速度大小
+     */
+    public getSpeed(): number {
+        return this.velocity.length();
+    }
+    
+    /**
+     * 重置组件
+     */
+    public reset(): void {
+        this.velocity.set(0, 0, 0);
+        this.maxSpeed = 200;
+        this.friction = 0.98;
+    }
+}