From SA-MP Wiki

random

Note: This function name starts with a lowercase letter.

Description:

Parameters:

Return Values:

Example Usage:

new value = random(5);
 
// 'value' might be 0, 1, 2, 3 or 4. 5 possible values.

Here's an example of how to script random spawnpoints:

new Float:RandomSpawn[][4] =
{
    // Positions, (X, Y, Z and Facing Angle)
    {-2796.9854, 1224.8180, 20.5429, 192.0335},
    {-2454.2170, 503.8759, 30.0790, 267.2932},
    {-2669.7322, -6.0874, 6.1328, 89.8853}
};
 
 
public OnPlayerSpawn(playerid)
{
    new rand = random(sizeof(RandomSpawn));
 
    // SetPlayerPos to the random spawn data
    SetPlayerPos(playerid, RandomSpawn[rand][0], RandomSpawn[rand][1],RandomSpawn[rand][2]);
 
    // SetPlayerFacingAngle to the random facing angle data
    SetPlayerFacingAngle(playerid, RandomSpawn[rand][3]);
    return 1;
}