项目选题为做一个飞行射击游戏。游戏中有各总各样的敌机和武器，敌机按一定的几率出现，玩家消灭敌机后可得分数奖励，达到一定分数后会升级，游戏难度随着玩家级数的增加而增大。游戏有很多爆炸场面，增加了刺激性。-Project topics to do a flight shooting game. The total range of enemy aircraft and weapons in the game, the enemy appeared according to a certain p