FrmMain.cs

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Tetris
{
    public partial class FrmMain : Form
    {
        //游戏对象说明
        private Game game;
        public FrmMain()
        {
            InitializeComponent();
        }
             
        private void Game_gameChanged()
        {
            gameArea.Invalidate();
        }

        private void gameArea_Paint(object sender, PaintEventArgs e)
        {
            //画背景
            if (game != null)
            {
                game.Draw(e.Graphics, this.gameArea.Size);
            }
        }

        private void FrmMain_KeyDown(object sender, KeyEventArgs e)
        {
            if (game != null)
            {
                //将按键传递给game
                game.KeyDown(e.KeyCode.ToString());
                gameArea.Invalidate();
            }
        }

        private void btnStartGame_Click(object sender, EventArgs e)
        {
            //重置游戏，初始化
            game = new Game();
            game.gameChanged += Game_gameChanged;
            gameArea.Invalidate();
        }

        private void btnAboutMe_Click(object sender, EventArgs e)
        {
            FrmAboutMe frm = new FrmAboutMe();
            frm.ShowDialog();
        }

        private void btStop_Click(object sender, EventArgs e)