classic 2D snake game

使用netbeans编写的方块游戏TetraGame，包含完整的工程文件。可以选择难度、背景音乐、配色方案等，另外还有游戏的帮助文件。-Netbeans prepared to use the game box TetraGame, contains the complete project file. Can choose the difficulty, background music, such as color scheme, as well as the game' s help