Water SMA

#include <amxmodx>
#include <fakemeta>
#include <hamsandwich>

#pragma semicolon 1

new bool:g_bPlayerInvisible[33], bool:g_bWaterInvisible[33];
new bool:g_bWaterEntity[1385], bool:g_bWaterFound;

new g_iSpectatedId[33];

public plugin_init( )
{
   register_plugin( "Invis", "1.3", "SchlumPF");

   register_clcmd( "say /invis", "menuInvisDisplay" );
   register_menucmd( register_menuid( "\rInvisibility - SchlumPF^n^n" ), 1023, "menuInvisAction" );

   register_forward( FM_PlayerPreThink, "fwdPlayerPreThink_Pre", 0 );
   register_forward( FM_AddToFullPack, "fwdAddToFullPack_Post", 1 );

   RegisterHam( Ham_Spawn, "player", "hamSpawnPlayer_Post", 1 );
}

public plugin_cfg( )
{
   // find all water entitys to make AddToFullPack use less cpu
   new ent = engfunc( EngFunc_FindEntityByString, -1, "classname", "func_water" );
   while( ent > 0 )
   {
      if( !g_bWaterFound )
         g_bWaterFound = true;

      g_bWaterEntity[ent] = true;

      ent = engfunc( EngFunc_FindEntityByString, ent, "classname", "func_water" );
   }
}

public fwdPlayerPreThink_Pre( plr )
{
   if( !is_user_alive( plr ) )
   {
      g_iSpectatedId[plr] = pev( plr, pev_iuser2 );
   }
}

public fwdAddToFullPack_Post( es_handle, e, ent, host, hostflags, player, pset )
{
   if( player )
   {
      if( g_bPlayerInvisible[host] && host != ent )
      {
         if( ent != g_iSpectatedId[host] && get_user_team(ent) == 2)
         {
            set_es( es_handle, ES_Origin, { 999999999.0, 999999999.0, 999999999.0 } );
            set_es( es_handle, ES_RenderMode, kRenderTransAlpha );
            set_es( es_handle, ES_RenderAmt, 0 );

            return FMRES_SUPERCEDE;
         }
      }
   }
   else if( g_bWaterInvisible[host] )
   {
      if( g_bWaterEntity[ent] )
      {
         set_es( es_handle, ES_Effects, EF_NODRAW );

         return FMRES_SUPERCEDE;
      }
   }

   return FMRES_IGNORED;
}

public hamSpawnPlayer_Post( plr )
   g_iSpectatedId[plr] = 0;

public menuInvisDisplay( plr )
{
   static menu[2048];
   new keys = ( 1<<0 | 1<<1 | 1<<9 );

   static player[3];
   format( player, sizeof player - 1, "%s", g_bPlayerInvisible[plr] ? "\d" : "\w" );

   new len = format( menu, sizeof menu - 1, "\rInvisibility - SchlumPF^n^n" );

   len += format( menu[len], sizeof menu - len, "\r01. %sPlayers^n", player );

   if( g_bWaterFound )
   {
      static water[3];
      format( water, sizeof water - 1, "%s", g_bWaterInvisible[plr] ? "\d" : "\w" );

      len += format( menu[len], sizeof menu - len, "\r02. %sWater^n^n", water );
   }
   else
      len += format( menu[len], sizeof menu - len, "\d02. Water^n^n" );

   len += format( menu[len], sizeof menu - len, "\r00. \wExit" );

   show_menu( plr, keys, menu, -1 );

   return PLUGIN_HANDLED;
}

public menuInvisAction( plr, key )
{
   switch( key )
   {
      case 0:
      {
         if( g_bPlayerInvisible[plr] )
         {
            g_bPlayerInvisible[plr] = false;
            fnGreenChat( plr, "[XJ] All players are now visible." );
         }
         else
         {
            g_bPlayerInvisible[plr] = true;
            fnGreenChat( plr, "[XJ] All players are now invisible." );
         }

         menuInvisDisplay( plr );
      }
      case 1:
      {
         if( g_bWaterFound )
         {
            if( g_bWaterInvisible[plr] )
            {
               g_bWaterInvisible[plr] = false;
               fnGreenChat( plr, "[XJ] Water is now visible." );
            }
            else
            {
               g_bWaterInvisible[plr] = true;
               fnGreenChat( plr, "[XJ] Water is now invisible." );
            }
         }
         else
            fnGreenChat( plr, "[XJ] There is no water which can become invisible." );

         menuInvisDisplay( plr );
      }
      case 9: show_menu( plr, 0, "" );
   }

   return PLUGIN_HANDLED;
}

public client_connect( plr )
{
   g_bPlayerInvisible[plr] = false;
   g_bWaterInvisible[plr] = false;
   g_iSpectatedId[plr] = 0;
}


// by fatalis
fnGreenChat( plr, const message[], {Float,Sql,Result,_}:... )
{
   static max_players, svc_saytext;
   if( !max_players )
      max_players = get_maxplayers( );
   if( !svc_saytext )
      svc_saytext = get_user_msgid( "SayText" );

   static msg[192];
   msg[0] = 0x04;

   vformat( msg[1], sizeof msg - 2, message, 3 );

   if( plr > 0 && plr <= max_players )
   {
      message_begin( MSG_ONE, svc_saytext, { 0, 0, 0 }, plr );
      write_byte( plr );
      write_string( msg );
      message_end( );
   }
   else if( plr == 0 )
   {
      for( new i = 1 ; i <= max_players ; i++ )
      {
         if( is_user_connected( i ) )
         {
            message_begin( MSG_ONE, svc_saytext, { 0, 0, 0 }, i );
            write_byte( i );
            write_string( msg );
            message_end( );
         }
      }
   }

   return 1;
}