[AbyssMorgan]

Simple random player in range and if npc see player.

PHP Code:

stock GetTarget(npcid){
    new Float:x, Float:y, Float:z, Float:angle, pstate,
        pool_players[MAX_PLAYERS], pool_upp = -1;
    
    FCNPC_GetPosition(npcid,x,y,z);
    angle = FCNPC_GetAngle(npcid);
    Tryg3D::Foreach(i){
        pstate = GetPlayerState(i);
        if(GetElementsDistance(i,item_player,npcid,item_fcnpc) <= 300.0 && GetPlayerInterior(i) == 0 && GetPlayerVirtualWorld(i) == 0){
            if(pstate != PLAYER_STATE_SPECTATING && pstate != PLAYER_STATE_WASTED){
                if(IsElementOnFakeScreen(x,y,z,i,item_player,0.0,angle)){ //for vehicle collision: .veh_col=true
                    pool_upp++;
                    pool_players[pool_upp] = i;
                }
            }
        }
    }
    
    if(pool_upp == -1) return INVALID_PLAYER_ID;
    return pool_players[random(pool_upp+1)];
} 


Libs:
3DTryg