[Joe_]

Could you explain why you're using two varibles? or what they do?

This is a common example, should work / point you in the right direction.

pawn Код:

public OnPlayerSpawn(playerid)
{
    if(PlayerInDM[playerid]) // Checking if PlayerInDM is 1, add a ' ! ' infront of the varible to check for 0.
    {
        new
            rand = random(5);

    switch(rand)
    {
        case 1: SetPlayerPos(playerid, 0.0, 0.0, 0.0);
        case 2: SetPlayerPos(playerid, 0.0, 0.0, 0.0);
        case 3: SetPlayerPos(playerid, 0.0, 0.0, 0.0);
        case 4: SetPlayerPos(playerid, 0.0, 0.0, 0.0);
    }
    return 1;
}