[Joshua Yu]

I have done something similar to something someone has done before. But I just change it a little bit that the vehicle gets into your front using sine and cosine. This is how a mathematician does things!

Code:

	if (strcmp(cmdtext, "/purchase", true)==0) // to set the vehicle that you register to be teleported
	{
	  if (GetPlayerMoney(playerid) < 5000)
	  {
			SendClientMessage(playerid,YELLOW,"Sorry, you don't have enough money to buy a car.");
		}
		else
		{
			if (IsPlayerInAnyVehicle(playerid) == 1)
			{
				SetVehicleToRespawn(ownedcar[playerid]);
				ownedcar[playerid] = GetPlayerVehicleID(playerid);
				owner[ownedcar[playerid]] = playerid;
				SendClientMessage(playerid,YELLOW,"Congragulations! You have purchased a new car.");
				GivePlayerMoney(playerid,-5000);
			}
			else
			{
	      SendClientMessage(playerid,YELLOW,"Please get in a vehicle to buy it.");
			}
		}
		return 1;
	}
	if (strcmp(cmdtext, "/callmycar", true)==0)
	{
	  if (ownedcar[playerid] != 0)
	  {
   	  if (GetPlayerMoney(playerid) < 500)
		  {
				SendClientMessage(playerid,YELLOW,"Sorry, you don't have enough money to use the car teleport service.");
			}
			else
			{
		    new Float:playerpos[4];
		  	GetPlayerPos(playerid,playerpos[0],playerpos[1],playerpos[2]);
		  	GetPlayerFacingAngle(playerid,playerpos[3]);
		  	SetVehicleZAngle(ownedcar[playerid],playerpos[3]+90.0);
		  	SetVehiclePos(ownedcar[playerid],playerpos[0]+3.0*floatsin(-playerpos[3],degrees),playerpos[1]+3.0*floatcos(-playerpos[3],degrees),playerpos[2]+0.5); // This one is cool that I am using trigo functions to set the vehicle just before you.
		  	SendClientMessage(playerid,YELLOW,"Thank you for using car teleport service. Your car has came.");
		  	GivePlayerMoney(playerid,-500);
			}
	  }
		return 1;
	}