// input.h -- external (non-keyboard) input devices void IN_Init (void); void IN_Shutdown (void); void IN_Commands (void);// oportunity for devices to stick commands on the script buffer void IN_Move (usercmd_t *cmd);// add additional movement on top of the keyboard move cmd void IN_ClearStates (void);// restores all button and position states to defaults void IN_Grabm (int on);// grab or ungrab mouse