Get Nearest [LIB]

//***** Made by TopAz in 15 minutes.


//----- Header
#if defined _getnearest_included
    #endinput
#endif
#define _getnearest_included
#pragma library samp
//----------------

//----- External Library(ies)
#include <a_samp>
//------------------------

//----- Constants
/*#if defined USE_STREAMER
    #include "streamer"
#endif*/

#define OBJECT              (0)
#define PLAYER              (1)
#define VEHICLE             (2)
#define DYNAMIC_OBJECT      (3)
//----------------


stock GetNearest(playerid, type, Float:distance)
{
    new ret;
    switch(type)
    {
        case OBJECT:
        {
            ret = GetNearest_Object(playerid, distance);
        }
        case PLAYER:
        {
            ret = GetNearest_Player(playerid, distance);
        }
        case VEHICLE:
        {
            ret = GetNearest_Vehicle(playerid, distance);
        }
        case DYNAMIC_OBJECT:
        {
            ret = GetNearest_DynObject(playerid, distance);
        }
    }
    return ret;
}

stock GetNearest_Object(playerid, Float:distance)
{
    new
        Float:xX,
        Float:yY,
        Float:zZ,
        retElement = -1
    ;
    for(new i = 0; i < MAX_OBJECTS; i++)
    {
        if(!IsValidObject(i)) continue;
        GetObjectPos(i, xX, yY, zZ);
        new Float:odist = GetPlayerDistanceFromPoint(playerid, xX, yY, zZ);
        if (retElement == -1)
        {
            retElement = i;
            distance = odist;
        }
        else if (odist < distance)
        {
            retElement = i;
            distance = odist;
        }
    }
    return retElement;
}

stock GetNearest_Player(playerid, Float:distance)
{
    new
        Float:xX,
        Float:yY,
        Float:zZ,
        retElement = -1
    ;
    for(new i = 0; i < MAX_PLAYERS; i++)
    {
        if((i == playerid) || (i == INVALID_PLAYER_ID)) continue;
        GetPlayerPos(i, xX, yY, zZ);
        new Float:odist = GetPlayerDistanceFromPoint(playerid, xX, yY, zZ);
        if (retElement == -1)
        {
            retElement = i;
            distance = odist;
        }
        else if (odist < distance)
        {
            retElement = i;
            distance = odist;
        }
    }
    return retElement;
}

stock GetNearest_Vehicle(playerid, Float:distance)
{
    new
        Float:xX,
        Float:yY,
        Float:zZ,
        retElement = -1
    ;
    for(new i = 0; i < MAX_VEHICLES; i++)
    {
        GetVehiclePos(i, xX, yY, zZ);
        new Float:odist = GetPlayerDistanceFromPoint(playerid, xX, yY, zZ);
        if (retElement == -1)
        {
            retElement = i;
            distance = odist;
        }
        else if (odist < distance)
        {
            retElement = i;
            distance = odist;
        }
    }
    return retElement;
}

stock GetNearest_DynObject(playerid, Float:distance)
{
    new
        Float:xX,
        Float:yY,
        Float:zZ,
        retElement = -1
    ;
    for(new i = 0; i < CountDynamicObjects(); i++)
    {
        GetDynamicObjectPos(i, xX, yY, zZ);
        new Float:odist = GetPlayerDistanceFromPoint(playerid, xX, yY, zZ);
        if (retElement == -1)
        {
            retElement = i;
            distance = odist;
        }
        else if (odist < distance)
        {
            retElement = i;
            distance = odist;
        }
    }
    return retElement;
}