Cocos Creator – 3D游戏开发入门《方块先生》

@ccclass('PlayerController')
export class PlayerController extends Component {
    @property(Node)
    player:Node;
    @property(Node)
    camera:Node;
    @property(Vec3)
    cameraOffset:Vec3 = new Vec3();
    @property(CCInteger)
    forwardForce:number = 0; //前进推力
    @property(CCInteger)
    sideForce:number = 0; //左右推力

    rigidBody:RigidBody; //钢体
    collider:BoxCollider; //碰撞体
    isLeftDown:boolean = false;
    isRightDown:boolean = false;
    isPlaying:boolean = false;// 游戏状态

    start() {
        // 键盘事件
        input.on(Input.EventType.KEY_DOWN, this.onKeyDown, this);
        input.on(Input.EventType.KEY_UP, this.onKeyUp, this);
        this.rigidBody = this.player.getComponent(RigidBody);
        this.collider = this.player.getComponent(BoxCollider);
        // 碰撞事件
        if (this.collider) {
            this.collider.on('onCollisionEnter', this.onCollisionEnter, this);
            this.collider.on('onTriggerEnter', this.onTriggerEnter, this);
        }
    }

    tmpPos = new Vec3();
    update(deltaTime: number) {
        // 相机跟随
        this.player.getPosition(this.tmpPos);
        this.tmpPos.add(this.cameraOffset);
        this.camera.position = this.tmpPos;
        // 施加作用力
        if (this.isPlaying) {
            let force = new Vec3(0, 0, this.forwardForce * deltaTime);
            if (this.rigidBody) {
                this.rigidBody.applyForce(force);
                if(this.isLeftDown){
                    let leftForce = new Vec3(this.sideForce * deltaTime, 0, 0);
                    this.rigidBody.applyForce(leftForce);
                }
                if(this.isRightDown){
                    let rightForce = new Vec3(-this.sideForce * deltaTime, 0, 0);
                    this.rigidBody.applyForce(rightForce);
                }
            }
            // 掉落检测
            if (this.player.getPosition().y < 0) {
                // 停止游戏
                this.isPlaying = false;
                // 自定义事件，关卡失败
                director.getScene().emit('level_failed');
            }
        }
    }
    // 键盘按下
    onKeyDown(event: EventKeyboard) {
        console.log('onKeyDown');
        if(event.keyCode == KeyCode.KEY_A){
            this.isLeftDown = true;
        }
        if(event.keyCode == KeyCode.KEY_D){
            this.isRightDown = true;
        }
    }
    // 键盘抬起
    onKeyUp(event: EventKeyboard) {
        console.log('onKeyUp');
        if(event.keyCode == KeyCode.KEY_A){
            this.isLeftDown = false;
        }
        if(event.keyCode == KeyCode.KEY_D){
            this.isRightDown = false;
        }
    }

    // 碰撞事件
    onCollisionEnter(event:ICollisionEvent){
        console.log('hit');
        // 碰到障碍物
        if(event.otherCollider.node.name == 'Obstacle'){
            // 停止游戏
            this.isPlaying = false;
            // 自定义事件，关卡失败
            director.getScene().emit('level_failed');
        }
    }

    // 触发事件
    onTriggerEnter(event:ITriggerEvent){
        // 通关
        console.log('Run The End!')
        // 停止游戏
        this.isPlaying = false;
        // 自定义事件，关卡成功
        director.getScene().emit('level_successful');
    }
}

@ccclass('GameManager')
export class GameManager extends Component {
    @property(PlayerController)
    playerCtl: PlayerController;
    @property(Button)
    startBtn: Button;
    @property(Label)
    distance:Label;
    @property(Node)
    uiFailure:Node;
    @property(Node)
    uiSuccess:Node;
    start() {
        // 开始游戏
        this.startBtn.node.on(Button.EventType.CLICK, this.onStartGame, this);
        // 监听 自定义事件 (关卡失败)
        director.getScene().on('level_failed', this.onLevelFailed, this);
        // 监听 自定义事件 (关卡成功)
        director.getScene().on('level_successful', this.onLevelSuccessful, this);
        // 隐藏失败成功界面
        this.uiFailure.active = false;
        this.uiSuccess.active = false;
    }
    update(deltaTime: number) {
        this.distance.string = this.playerCtl.node.position.z.toFixed(1);
    }
    onStartGame(){
        this.playerCtl.isPlaying = true;
        this.startBtn.node.active = false;
    }
    onLevelFailed(){
        this.uiFailure.active = true;
    }
    onLevelSuccessful(){
      this.uiSuccess.active = true;
    }
    // 重玩
    onBtnReplay(){
        director.loadScene(director.getScene().name);
    }
}