用matlab编写的不平衡磁拉力方程，可以用来做转子动力学仿真(The unbalanced magnetic pull equation written in matlab can be used to simulate rotor dynamics.)

No recoil for guns: AKM,AUG,DP28,GROZA,HK416,M14,M16A4,M249,MINI14,SAIGA,SCAR,SKS,THOMPSON,UMP,VECTOR,VSS,W94,WINCHESTER. Also fixed pistols animation.