tanqiu/assets/scripts/Core/PhysicsManager.ts

import { _decorator, Component, Node, PhysicsSystem2D, EPhysics2DDrawFlags, Vec2, debug } from 'cc';
const { ccclass, property } = _decorator;

@ccclass('PhysicsManager')
export class PhysicsManager extends Component {
    @property
    debugDraw: boolean = false;

    start() {
        // 启用物理系统
        PhysicsSystem2D.instance.enable = true;
        
        // 设置物理系统的重力为零（因为是2D平面游戏）
        PhysicsSystem2D.instance.gravity = new Vec2(0, 0);
        
        // 如果启用了调试绘制，显示碰撞体
        if (this.debugDraw) {
            PhysicsSystem2D.instance.debugDrawFlags = 
                EPhysics2DDrawFlags.Aabb | 
                EPhysics2DDrawFlags.Pair | 
                EPhysics2DDrawFlags.CenterOfMass | 
                EPhysics2DDrawFlags.Joint | 
                EPhysics2DDrawFlags.Shape;
        } else {
            PhysicsSystem2D.instance.debugDrawFlags = EPhysics2DDrawFlags.None;
        }
    }
}