这是一个java游戏中常用的技术测试，工程是一个精灵类，实现了精灵的自由走动以及碰撞，地图卷动，以及物品层次之间的遮盖关系等。-This is a java game to test commonly used technology, engineering is a wizard class, the realization of the wizard and move around freely collisions, map scrolling, as well as the items