[scout322]

Код:

public OnPlayerGiveDamage(playerid, damagedid, Float: amount, weaponid, bodypart)
{
    new Float:x, Float:y, Float:z, Float:Distance;
    GetPlayerPos(damagedid, x, y, z);
    Distance = GetPlayerDistanceFromPoint(playerid, x,y,z);
    return 1;
}

Something like this. I hope it helped