[Threshold]

Player takes damage in OnPlayerTakeDamage. You could also technically use OnPlayerGiveDamage.

If the player was damaged by another player, update their 'last damaged' variable to the current timestamp.

PHP код:

if((gettime() - variable[playerid]) < duration) // Player has not waited long enough 


Example:

PHP код:

OnPlayerTakeDamage(playerid, issuerid, Float:amount, weaponid, bodypart)
{
    if(issuerid != INVALID_PLAYER_ID && issuerid != playerid) // The player was damaged by another player
    {
        SetPVarInt(playerid, "LastDamaged", gettime());
    }
    return 1;
}
CMD:afk(playerid, params[])
{
    if((gettime() - GetPVarInt(playerid, "LastDamaged")) < 60) return SendClientMessage(playerid, -1, "You have been damaged recently, you can't use this command.");
    // Rest of command...
} 


https://sampwiki.blast.hk/wiki/OnPlayerTakeDamage
https://sampwiki.blast.hk/wiki/OnPlayerGiveDamage
https://sampwiki.blast.hk/wiki/Gettime
https://sampwiki.blast.hk/wiki/GetTickCount