Sprint system

script "FDSprintSystem" ENTER {
	if (GameType () == Game_Title_Map) Terminate;
	int Sprinting, tics, OldSpeed = 0;
	While (TRUE) {
		if (CheckInventory ("SprintWeapon") && Sprinting == 0) {
			SetActorProperty (0, APROP_Speed, OldSpeed);
			DisableWeapon ("SprintWeapon");
			Sprinting = 0;
			tics = 0;
		}
		if (keyDown (BT_USER1) && Sprinting == 0 && CheckInventory ("FDStamina") >= 5) {
			DisableWeapon ("SprintWeapon");
			Sprinting = 1;
			OldSpeed = GetActorProperty (0, APROP_Speed);
		}
		if (keyUp (BT_USER1) && Sprinting == 1) {
			SetActorProperty (0, APROP_Speed, OldSpeed);
			DisableWeapon ("SprintWeapon");
			Sprinting = 0;
			tics = 0;
		}
		if (Sprinting == 1 && CheckInventory ("Sprinting")) {
			if (CheckInventory ("FDStamina") >= 5)
			{
				if (tics == 5 && CheckInventory ("Sprinting")) {
					tics = 0;
					if (!CheckInventory("PowerAgilityRune") && GetVelocity () > 0)
						TakeInventory ("FDStamina", 5);
				}
				if (CheckInventory ("FDStamina") < 5) {
					SetActorProperty (0, APROP_Speed, OldSpeed);
					DisableWeapon ("SprintWeapon");
					TakeInventory ("Sprinting", 1);
					Sprinting = 0;
					tics = 0;
				}
				if (CheckInventory ("Sprinting") && ((abs (GetPlayerInput (-1, INPUT_FORWARDMOVE)) > 6400) || (abs (GetPlayerInput(-1, INPUT_SIDEMOVE)) > 6400)))
					SetActorProperty (0, APROP_Speed, 1.6);
				else
					SetActorProperty (0, APROP_Speed, 2.6);
			}
		}
		Delay (1);
		if (Sprinting == 1)
			tics++;
	}
}