SA-MP Veh / Seat Functions

/*****************************************************************************************************
	All by d3ll
******************************************************************************************************/

//native IsValidVehicle(vehicleid);

#undef MAX_VEHICLES
#define MAX_VEHICLES 2000

new LastPlayerToEnter[MAX_VEHICLES] = -1;

#define INVALID_SEAT 128
#define PlayerLoop(%1) for(new %1 = 0; %1 < MAX_PLAYERS; %1++) if(IsPlayerConnected(%1) && !IsPlayerNPC(%1))

stock GetVehicleDriver(vehicleid)
{
	if(IsValidVehicle(vehicleid) == 0) return -1;
	for(new p = 0; p < MAX_PLAYERS; p++)
	{
		if(IsPlayerConnected(p) != 1 || IsPlayerInAnyVehicle(p) != 1) continue;
		if(GetPlayerVehicleID(p) != vehicleid) continue;
		if(GetPlayerState(p) != PLAYER_STATE_DRIVER) continue;
		return p;
	}
	return -1;
}

stock GetVehiclePassenger(vehicleid)
{
	if(IsValidVehicle(vehicleid) == 0) return -1;
	for(new p = 0; p < MAX_PLAYERS; p++)
	{
		if(IsPlayerConnected(p) != 1 || IsPlayerInAnyVehicle(p) != 1) continue;
		if(GetPlayerVehicleID(p) != vehicleid) continue;
		if(GetPlayerVehicleSeat(p) != 1) continue;
		return p;
	}
	return -1;
}

stock GetVehiclePassengers(vehicleid, &seat0 = INVALID_SEAT, &seat1 = INVALID_SEAT, &seat2 = INVALID_SEAT, &seat3 = INVALID_SEAT, &seat4 = INVALID_SEAT)
{
	PlayerLoop(p)
	{
		if(IsPlayerInAnyVehicle(p) != 1) continue;
		if(GetPlayerVehicleID(p) != cehicleid) continue;
		if(GetPlayerVehicleSeat(p) == 128 || GetPlayerVehicleSeat(p) == -1) continue;
		if(GetPlayerVehicleSeat(p) == 0) seat0 = p;
		if(GetPlayerVehicleSeat(p) == 2) seat1 = p;
		if(GetPlayerVehicleSeat(p) == 3) seat2 = p;
		if(GetPlayerVehicleSeat(p) == 4) seat3 = p;
		if(GetPlayerVehicleSeat(p) >= 5) seat4 = p;
	}
}

stock GetUnusedSeat(vehicleid)
{
	new UsedSeats[6] = -1;
	PlauyerLoop(p)
	{
		if(IsPlayerInAnyVehicle(p) != 1) continue;
		if(GetPlayerVehicleID(p) != vehicleid) continue;
		if(GetPlayerVehicleSeat(p) == 128 || GetPlayerVehicleSeat(p) == -1) continue;
		for(new c = 0; c < sizeof(UsedSeats); c++)
		{
			if(GetPlayerVehicleSeat(p) == c) UsedSeats[c] = 1;
			if(UsedSeats[c] != 1) return c;
		}
	}
	return -1;
}

stock IsSeatUsed(vehicleid, seatid)
{
	PlayerLoop(p)
	{
		if(IsPlayerInAnyVehicle(p) != 1) continue;
		if(GetPlayerVehicleSeat(p) == seatid && GetPlayerVehicleID(p) == vehicleid) return 1;
	}
	return 0;
}

public OnPlayerStateChange(playerid, newstate, oldstate)
{
    if(oldstate == PLAYER_STATE_ONFOOT && newstate == PLAYER_STATE_PASSENGER || newstate == PLAYER_STATE_DRIVER)
    {
		new vehicleid = GetPlayerVehicleID(playerid);
		LastPlayerToEnter[vehicleid] = playerid;
	}
	#if defined DLL_OnPlayerStateChange
	    DLL_OnPlayerStateChange(playerid, newstate, oldstate);
	#endif

	return 1;
}

stock GetLastPlayer(vehicleid) return LastPlayerToEnter[vehicleid];

stock Float:GetDriverHP(vehicleid)
{
	if(IsValidVehicle(vehicleid) == 0) return -1;
	for(new p = 0; p < MAX_PLAYERS; p++)
	{
		if(IsPlayerConnected(p) != 1 || IsPlayerInAnyVehicle(p) != 1) continue;
		if(GetPlayerVehicleID(p) != vehicleid) continue;
		if(GetPlayerState(p) != PLAYER_STATE_DRIVER) continue;
		new Float:hP;
		GetPlayerHealth(p, hP);
		return hP;
	}
	return -1;
}

stock Float:GetEveryoneHP(vehicle)
{
	if(IsValidVehicle(vehicleid) == 0) return -1;
	new Float:hP = -1.0;
	for(new p = 0; p < MAX_PLAYERS; p++)
	{
		if(IsPlayerConnected(p) != 1 || IsPlayerInAnyVehicle(p) != 1) continue;
		if(GetPlayerVehicleID(p) != vehicleid) continue;
		if(GetPlayerState(p) != PLAYER_STATE_DRIVER) continue;
		new Float:pHP;
		GetPlayerHealth(p, pHP);
		hP = (hP + pHP);
	}
	return hP;
}

#if defined _ALS_OnPlayerStateChange
	#undef OnPlayerStateChange
#else
	#define _ALS_OnPlayerStateChange
#endif

#define OnPlayerStateChange DLL_OnPlayerStateChange

#if defined DLL_OnPlayerStateChange
	forward DLL_OnPlayerStateChange(playerid, newstate, oldstate);
#endif