// These defines are for client button presses.   
#define IN_ATTACK  (1 << 0)   
#define IN_JUMP   (1 << 1)   
#define IN_DUCK   (1 << 2)   
#define IN_FORWARD  (1 << 3)   
#define IN_BACK   (1 << 4)   
#define IN_USE   (1 << 5)   
#define IN_CANCEL  (1 << 6)   
#define IN_LEFT   (1 << 7)   
#define IN_RIGHT  (1 << 8)   
#define IN_MOVELEFT  (1 << 9)   
#define IN_MOVERIGHT  (1 << 10)   
#define IN_ATTACK2  (1 << 11)   
#define IN_RUN   (1 << 12)   
#define IN_RELOAD  (1 << 13)   
#define IN_ALT1   (1 << 14)   
#define IN_ALT2   (1 << 15)   
#define IN_SCORE  (1 << 16)    // Used by client.dll for when scoreboard is held down   
#define IN_SPEED  (1 << 17)    // Player is holding the speed key   
#define IN_WALK   (1 << 18)    // Player holding walk key   
#define IN_ZOOM   (1 << 19)    // Zoom key for HUD zoom   
#define IN_WEAPON1  (1 << 20)    // weapon defines these bits   
#define IN_WEAPON2  (1 << 21)    // weapon defines these bits   
#define IN_BULLRUSH  (1 << 22)   
#define IN_GRENADE1  (1 << 23)    // grenade 1   
#define IN_GRENADE2  (1 << 24)    // grenade 2

public Action:OnPlayerRunCmd(client, &buttons, &impulse, Float:vel[3], Float:angles[3], &weapon)