[Detoria]

Get the positions that the player must spawn and put them on OnPlayerSpawn.

PHP код:

new RandomPos[][]=
{
//my positions
};
public OnPlayerSpawn(playerid)
{
      new randpos = random(RandomPos[]);
      SetPlayerPos(playerid, randpos[]);
      //rest of your code
     return 1;
} 


This is a example of random places to spawn,you can put directly the position vars without the random var if you want.