Java开发小游戏 用键盘控制精灵在游戏中上下左右跑动 窗体小游戏可打包下载，解压后双击start运行

package com.swift;

import java.awt.Point;
import java.awt.event.KeyEvent;

import com.rupeng.game.GameCore;

public class PlayWithKey implements Runnable{

    public static void main(String[] args) {
        GameCore.start(new PlayWithKey());
    }

    @Override
    public