wave generation in a tank udf surce file

一款坦克战 v1.2源代码 1.重新编写了代码。 2.尽量使自定义的类具有可重用性。 3.为方便理解和重用，类和函数都做了详细的注释。 -A tank warfare v1.2 source code 1. To rewrite the code. 2. As far as possible, a custom class of reusability. 3. To facilitate the understanding and reuse, classes and fun

一个简单好玩的游戏，坦克游戏比较简单耐玩-A simple, fun games, tank games is relatively simple Nai Wan

a little tank game and easy to adjust original code