Howto: SemiAuto Weapons

I've been struggling to get semi auto weapons working in my game. There doesn't seem to be any resources or any information on it.

I finally got it working, and wanted to post it here for other people to use.

Here is the state machine for my semi-auto rifle


/ Initial start up state
stateName[0] = "Preactivate";
stateTransitionOnLoaded[0] = "Activate";
stateTransitionOnNoAmmo[0] = "NoAmmo";

// Activating the gun. Called when the weapon is first
// mounted and there is ammo.
stateName[1] = "Activate";
stateTransitionOnTimeout[1] = "Ready";
stateTimeoutValue[1] = 0.6;
stateSequence[1] = "Activate";

// Ready to fire, just waiting for the trigger
stateName[2] = "Ready";
stateTransitionOnNoAmmo[2] = "NoAmmo";
stateTransitionOnTriggerDown[2] = "Fire";

// Fire the weapon. Calls the fire script which does
// the actual work.

stateName[3] = "Fire";
stateTransitionOnTimeout[3] = "Reload";
stateTimeoutValue[3] = $firingTime;
stateFire[3] = true;
stateRecoil[3] = LightRecoil;
stateAllowImageChange[3] = false;
stateSequence[3] = "Fire";
stateScript[3] = "onFire";
stateSound[3] = RifleFireSound;

// Play the relead animation, and transition into
stateName[4] = "Reload";
stateTransitionOnNoAmmo[4] = "NoAmmo";
stateTransitionOnTimeout[4] = "Semi"; //Ready
stateTimeoutValue[4] = $reloadTime;
stateAllowImageChange[4] = false;
stateSequence[4] = "Reload";
stateEjectShell[4] = true;
stateSound[4] = RifleReloadSound;

// No ammo in the weapon, just idle until something
// shows up. Play the dry fire sound if the trigger is
// pulled.
stateName[5] = "NoAmmo";
stateTransitionOnAmmo[5] = "Reload";
stateSequence[5] = "NoAmmo";
stateTransitionOnTriggerDown[5] = "DryFire";

// No ammo dry fire
stateName[6] = "DryFire";
stateTimeoutValue[6] = 1.0;
stateTransitionOnTimeout[6] = "NoAmmo";
stateSound[6] = RifleFireEmptySound;

stateName[7] = "Semi";
stateTransitionOnTriggerUp[7] = "Ready";