#if defined _streamer_mapicon_included
   #endinput
#endif

#define _streamer_mapicon_included
#pragma library streamer_mapicon

#define MAX_ICONS 1000
#define MAX_SHOWED_ICONS 100

#define MAP_ICON_STREAM_DISTANCE 400

enum info_MapIcon {
  bool:Showed,
  icon_type,
  iconid,
  Float:Coord_X,
  Float:Coord_Y,
  Float:Coord_Z
};
static MapIcons[MAX_ICONS][info_MapIcon];
static IconsShowed[MAX_PLAYERS];

stock CreateStreamMapIcon( markertype, Float:X, Float:Y, Float:Z )
{
  new icon_id = GetLastMapIconSlot();
  if(icon_id > MAX_ICONS) return 1;
  MapIcons[icon_id][icon_type] = markertype;
  if( icon_id == 0 ) // фикс для 0 иконки
  {
   MapIcons[icon_id][iconid] = 0;
  }
  else
  {
   MapIcons[icon_id][iconid] = MapIcons[icon_id-1][iconid]+1;
  }
  MapIcons[icon_id][Coord_X] = X;
  MapIcons[icon_id][Coord_Y] = Y;
  MapIcons[icon_id][Coord_Z] = Z;
  return 1;
}

stock DeleteStreamMapIcon(icon_id)
{
  for(new i=GetMaxPlayers()-1;i>=0;--i)
   RemovePlayerStreamMapIcon(i,icon_id);
}

stock RemovePlayerStreamMapIcon( playerid,icon_id )
{
  MapIcons[icon_id][icon_type] = 0;
  MapIcons[icon_id][Showed] = false;
  MapIcons[icon_id][Coord_X] = 0.0;
  MapIcons[icon_id][Coord_Y] = 0.0;
  MapIcons[icon_id][Coord_Z] = 0.0;
  RemovePlayerMapIcon(playerid,icon_id);
}

stock MapIcons_Streaming()
{
  for( new playerid=GetMaxPlayers()-1;playerid>=0;--playerid )
  {
   if( !IsPlayerConnected(playerid) || IsPlayerNPC(playerid) ) continue;
   //icon_count[playerid]=0;
   for( new icon_id=0;icon_id<MAX_ICONS;icon_id++ )
   {
    if( GetDistanceToMapIcon(playerid,icon_id) > MAP_ICON_STREAM_DISTANCE
     && IsValidMapIcon(icon_id)
     && MapIcons[icon_id][Showed] == true
    ) // если игрок не в зоне отображения иконки
    {
     RemovePlayerMapIcon(playerid,MapIcons[icon_id][iconid]);
     MapIcons[icon_id][Showed] = false;
     IconsShowed[playerid]--;
     continue;
    }
    if(    MapIcons[icon_id][Showed] == true || !IsValidMapIcon(icon_id) ) continue; // если иконка показана или иконки нет

    if( GetDistanceToMapIcon(playerid,icon_id) <= MAP_ICON_STREAM_DISTANCE && IconsShowed[playerid] < MAX_SHOWED_ICONS) // если игрок в зоне отображения иконки
    {
     SetPlayerMapIcon(playerid,MapIcons[icon_id][iconid],MapIcons[icon_id][Coord_X],MapIcons[icon_id][Coord_Y],MapIcons[icon_id][Coord_Z],MapIcons[icon_id][icon_type],0);
     MapIcons[icon_id][Showed] = true;
     IconsShowed[playerid]++;
    }
   }
  }
}

stock GetMapIconPos( icon_id,&Float:icon_x,&Float:icon_y,&Float:icon_z )
{
  if( !IsValidMapIcon(icon_id) ) return 0;
  icon_x = MapIcons[icon_id][Coord_X];
  icon_y = MapIcons[icon_id][Coord_Y];
  icon_z = MapIcons[icon_id][Coord_Z];
  return 1;
}

stock GetDistanceToMapIcon(playerid,icon_id)
{
  new Float:icon_x,Float:icon_y,Float:icon_z;
  new Float:player_x,Float:player_y,Float:player_z;

  GetMapIconPos(icon_id,icon_x,icon_y,icon_z);
  GetPlayerPos(playerid,player_x,player_y,player_z);

  return floatround
  (
   floatsqroot
   (
    floatpower( icon_x - player_x, 2 )
    +  
    floatpower( icon_y - player_y, 2 )  
   )
  );
}

stock FindStreamMapIcon(Float:X,Float:Y,Float:Z)
{
  for(new icon_id=0;icon_id<MAX_ICONS;icon_id++)
  {
   if(!IsValidMapIcon(icon_id)) continue;
   if(loccmp(X,Y,Z,MapIcons[icon_id][Coord_X],MapIcons[icon_id][Coord_Y],MapIcons[icon_id][Coord_Z]))
    return icon_id;
  }
  return 0;
}

stock IsValidMapIcon(icon_id)
{
  if(    MapIcons[icon_id][icon_type] == 0 && MapIcons[icon_id][Showed] == false
   && MapIcons[icon_id][Coord_X] == 0.0
   && MapIcons[icon_id][Coord_Y] == 0.0
   && MapIcons[icon_id][Coord_Z] == 0.0
  ) return false;
  return true;
}

stock GetLastMapIconSlot()
{
  for(new icon=0;icon<MAX_ICONS;icon++)
  {
   if(    MapIcons[icon][icon_type] == 0 && MapIcons[icon][Showed] == false
    && MapIcons[icon][Coord_X] == 0.0
    && MapIcons[icon][Coord_Y] == 0.0
    && MapIcons[icon][Coord_Z] == 0.0
   ) return icon;
  }
  return -1;
}