物理运动模拟的代码.. Collisions are done with impulses. Constraints are done with impulses. Resting contact is treated as a constraint, implemented by doing an inelastic collision. Joints are also done using constraints/impulses.-physical motion simula

一款PHP游戏引擎,将文件上传至空间后，倒入import目录下的数据库文件，第一个请先导入structure.sql，其余的按照编号顺序导入即可。数据库编码选择latin1-A PHP game engine, will be uploading files to the space after import into the database file directory, the first you import structure.sql, the rest can be imported

游戏奖池计算，非常重要的算法哦。 如果概率是5 ，也就是说100个编号1-100的球，其中有5个编号对应的是红色，其余对应的白色，那么任选一个编号，为红的概率是5 。-Game prize pool, very important algorithms Oh. ' If the probability is 5 , that is 100 No. 1-100 balls, including five numbers correspond to the red, the rest of t