[v1k1nG]

This could be a idea.

PHP Code:

#define MAX_SPAWN_POINTS           50 // Your value
enum RandomPoints
{
    Float:wcrm_X[MAX_SPAWN_POINTS],
    Float:wcrm_Y[MAX_SPAWN_POINTS],
    Float:wcrm_Z[MAX_SPAWN_POINTS],
    Float:wcrm_RZ[MAX_SPAWN_POINTS],
    bool:IsSpawnPointUsed[MAX_SPAWN_POINTS]
};
for(new i = 0; i < MAX_SPAWN_POINTS; i++){
    if(!IsSpawnPointUsed[i]){
        SetSpawnInfo(playerid, playerteam, playerskin, wcrm_X, wcrm_Y, wcrm_Z, weapon, ammo, weapon, ammo, weapon, ammo);
        IsSPawnPointUsed[i] = true;
    }    
}