_Aliens/assets/module_aliens/Script/Components/EnemyComponent.ts

import { _decorator, CCBoolean, CCFloat, Collider, Component, isValid, ITriggerEvent, Material, MeshRenderer, Node, PhysicsSystem, Quat, RigidBody, tween, Tween, Vec3 } from 'cc';
import { EventDispatcher } from 'db://assets/core_tgx/easy_ui_framework/EventDispatcher';
import { GameEvent } from '../Enum/GameEvent';
import { GameUtil } from '../GameUtil';

const { ccclass, property, executeInEditMode } = _decorator;

export enum EnemyStatus {
    LIFE,
    DIE
}

@ccclass('EnemyComponent')
@executeInEditMode
export class EnemyComponent extends Component {

    @property(RigidBody)
    rigidBody: RigidBody = null!;

    @property(Node)
    head: Node = null!;

    @property(Node)
    leftHand: Node = null!;

    @property(Node)
    rightHand: Node = null!;

    @property(Node)
    leftFoot: Node = null!;

    @property(Node)
    rightFoot: Node = null!;

    @property(Node)
    eyeRender: Node = null!;

    @property(Node)
    bodyRender: Node = null!;

    @property(Material)
    hitEyeMaterial: Material = null!; // 击中眼睛的材质

    @property(Material)
    hitMaterial: Material = null!; // 击中时身体的材质

    currentHp: number = 0;
    status: EnemyStatus = EnemyStatus.LIFE;
    speed: number = 50;
    headshot: boolean = false;
    tigger: Collider = null!;

    protected onLoad(): void {
        this.tigger = this.node.getComponent(Collider)!;
    }

    start() {
        this.status = EnemyStatus.LIFE;
        this.tigger = this.node.getComponent(Collider)!;
        this.rigidBody.isKinematic = true;
        this.registerEvent();
    }

    private registerEvent() {
        this.tigger.on('onTriggerEnter', this.onTriggerEnter, this);
        EventDispatcher.instance.on(GameEvent.EVENT_CAMERA_SHOOT_ENEMY, this.onShootEnemy, this);
    }

    private unRegisterEvent() {
        this.tigger.off('onTriggerEnter', this.onTriggerEnter, this);
    }

    protected onTriggerEnter(event: ITriggerEvent): void {
    }

    private async onShootEnemy(hitNode: Node) {
        // 检查是否是当前怪物节点被击中
        if (this.node === hitNode && this.status === EnemyStatus.LIFE) {
            this.status = EnemyStatus.DIE;

            // 修改所有部位材质为击中材质
            this.changeMaterial();

            this.playHitTwitch();
            await GameUtil.delay(0.7);
            this.rigidBody.isKinematic = false;
            this.rigidBody.isDynamic = true;
            await GameUtil.delay(0.3);
            this.node.destroy();
        }
    }

    private changeMaterial() {
        if (!this.bodyRender || !this.hitMaterial) return;
        const renderer = this.bodyRender.getComponent(MeshRenderer);
        const eyeRenderer = this.eyeRender.getComponent(MeshRenderer);
        if (renderer) {
            renderer.material = this.hitMaterial;
        }
        if (eyeRenderer) {
            eyeRenderer.material = this.hitEyeMaterial;
        }
    }

    // 中枪抽搐效果
    playHitTwitch() {
        // 抖动参数配置
        const shakeConfig = {
            head: { times: 5, duration: 0.12 },
            leftHand: { times: 6, duration: 0.1 },
            rightHand: { times: 6, duration: 0.15 },
            leftFoot: { times: 5, duration: 0.13 },
            rightFoot: { times: 5, duration: 0.13 }
        };

        // 生成随机抖动值
        const getRandomShake = () => (10 + Math.random() * 10) * (Math.random() > 0.5 ? 1 : -1);

        // 创建抖动动画函数
        const createShakeTween = (node: Node, config: { times: number, duration: number }) => {
            const t = tween(node);

            for (let i = 0; i < config.times; i++) {
                const euler = new Vec3();
                node.rotation.getEulerAngles(euler);
                const shakeValue = getRandomShake();

                const newEuler = new Vec3(euler.x + shakeValue, euler.y + shakeValue, euler.z);
                const newRotation = new Quat();
                Quat.fromEuler(newRotation, newEuler.x, newEuler.y, newEuler.z);

                t.to(config.duration, { rotation: newRotation });
            }

            return t;
        };

        // 头部抖动
        createShakeTween(this.head, shakeConfig.head).start();

        // 左手抖动
        createShakeTween(this.leftHand, shakeConfig.leftHand).start();

        // 右手抖动
        createShakeTween(this.rightHand, shakeConfig.rightHand).start();

        // 左腿抖动
        createShakeTween(this.leftFoot, shakeConfig.leftFoot).start();

        // 右腿抖动
        createShakeTween(this.rightFoot, shakeConfig.rightFoot).start();
    }

    protected onDestroy(): void {
        Tween.stopAllByTarget(this.node);
        this.unRegisterEvent();
    }
}