Missile 子弹 跟随效果 DelphiX 用Delphi6+DelphiX刚写的子弹跟随跟踪的代码。 总感觉不太真实，请各位高手指点指点，有没有好的算法实现跟踪。-Missile follow the effects of bullets DelphiX with Delphi6+ DelphiX bullets just write the code to follow the track. Feel less true, please instruct the expert a