cocos create 3.X 控制角色左右上下移动

 

 

 

 

代码：

/**
 * 角色上下左右控制
 * 
 */
import { _decorator, Component, Node, Vec3, Input, EventKeyboard, KeyCode } from 'cc';
const { ccclass, property } = _decorator;

@ccclass('Player')
export class Player extends Component {

    xy: number = 5;

    up:boolean = false;
    down:boolean = false;
    left:boolean = false;
    right:boolean = false;

    pos:Vec3;

    start() {
        this.pos = this.node.getPosition();
        console.log("start this.pos" + this.pos)
        let input:Input = new Input();
        input.on(Input.EventType.KEY_DOWN, this.onKeyDown, this);
        input.on(Input.EventType.KEY_UP, this.onKeyUp, this);
    }

    update(deltaTime: number) {
        this.move()
    }

    move(){
        if(this.up){
            this.pos.y += this.xy;
        }
        if(this.down){
            this.pos.y -= this.xy;
        }
        if(this.left){
            this.pos.x -= this.xy;
        }
        if(this.right){
            this.pos.x += this.xy;
        }
        // 触及边界，停止移动
        // 增加判断
        this.node.setPosition(this.pos);
    }
 
    onKeyDown(event: EventKeyboard){
        console.log("onKeyDown event " + event.keyCode)
        console.log("onKeyDown event " + event.keyCode )
        switch (event.keyCode) {
            case KeyCode.KEY_W: 
            case KeyCode.ARROW_UP:
                this.up = true;
                break;
            case KeyCode.KEY_S: 
            case KeyCode.ARROW_DOWN:
                this.down = true;
                break;
            case KeyCode.KEY_A: 
            case KeyCode.ARROW_LEFT:
                this.left = true;
                break;
            case KeyCode.KEY_D: 
            case KeyCode.ARROW_RIGHT:
                this.right = true;
                break;
        }
    }
 
    onKeyUp(event: EventKeyboard){
        console.log("onKeyUp event " + event.keyCode)
        switch (event.keyCode) {
            case KeyCode.KEY_W: 
            case KeyCode.ARROW_UP:
                this.up = false;
                break;
            case KeyCode.KEY_S: 
            case KeyCode.ARROW_DOWN:
                this.down = false;
                break;
            case KeyCode.KEY_A: 
            case KeyCode.ARROW_LEFT:
                this.left = false;
                break;
            case KeyCode.KEY_D: 
            case KeyCode.ARROW_RIGHT:
                this.right = false;
                break;
        }
    }
    
}