[Sasino97]

EDIT: I found a bug in your code:

pawn Code:

stock Npc: GetClosestNPC(playerid) // This function contributes to the above, as said, to chase a player :D
{
        new
        Float: fDistance,
        Float: fHighest,
        Npc: iPlayer = INVALID_CNPC
    ;
    foreachcnpc(npcid)
    {
        fDistance = GetDistanceBetweenPlayerAndNPC(playerid, npcid);
        if(fDistance > fHighest) fHighest = fDistance, iPlayer = Npc: npcid;
    }
    return iPlayer;
}

It was getting the highest distance, not the lowest lol, I lost a lot of time with my GM, I was trying to understand what made my bot not to work good. However that code will work if someone has only 1 CNPC.

The good code is:

pawn Code:

new Float: fDistance,
        Float: fLowest = 10000.0,
        Npc: iPlayer = INVALID_CNPC
    ;
    foreachcnpc(npcid)
    {
        fDistance = GetDistanceBetweenPlayerAndNPC(playerid, npcid);
        if(fDistance < fLowest) fLowest = fDistance, iPlayer = Npc: npcid;
    }
    return iPlayer;

And will work also with 10 npcs