Common/WorldMan.cpp

   1 /*
   2 Cafu Engine, http://www.cafu.de/
   3 Copyright (c) Carsten Fuchs and other contributors.
   4 This project is licensed under the terms of the MIT license.
   5 */
   6
   7 #include "WorldMan.hpp"
   8 #include "ConsoleCommands/ConVar.hpp"
   9
  10
  11 const WorldT* WorldManT::LoadWorld(const char* FileName, ModelManagerT& ModelMan, cf::GuiSys::GuiResourcesT& GuiRes, bool InitForGraphics, WorldT::ProgressFunctionT ProgressFunction)
  12 {
  13     for (unsigned long WorldNr=0; WorldNr<Worlds.Size(); WorldNr++)
  14     {
  15         WorldInfoT& WI=Worlds[WorldNr];
  16
  17         if (WI.FileName==FileName)
  18         {
  19             assert(WI.RefCount>0);
  20             WI.RefCount++;
  21             if (InitForGraphics && !WI.Init4Gfx) InitWorldForGfx(WI);
  22             return WI.WorldPtr;
  23         }
  24     }
  25
  26
  27     // FileName not found in cache, create a new instance.
  28     WorldT* NewWorld=new WorldT(FileName, ModelMan, GuiRes, ProgressFunction);  // Must do this here in case WorldT::WorldT() throws.
  29
  30     Worlds.PushBackEmpty();
  31     WorldInfoT& WI=Worlds[Worlds.Size()-1];
  32
  33     WI.FileName=FileName;
  34     WI.RefCount=1;
  35     WI.Init4Gfx=false;
  36     WI.WorldPtr=NewWorld;
  37
  38     if (InitForGraphics) InitWorldForGfx(WI);
  39
  40     return WI.WorldPtr;
  41 }
  42
  43
  44 void WorldManT::FreeWorld(const WorldT* World)
  45 {
  46     for (unsigned long WorldNr=0; WorldNr<Worlds.Size(); WorldNr++)
  47     {
  48         WorldInfoT& WI=Worlds[WorldNr];
  49
  50         if (WI.WorldPtr==World)
  51         {
  52             assert(WI.RefCount>0);
  53             WI.RefCount--;
  54
  55             if (WI.RefCount==0)
  56             {
  57                 delete WI.WorldPtr;
  58                 Worlds.RemoveAt(WorldNr);
  59             }
  60
  61             return;
  62         }
  63     }
  64
  65     assert(false);
  66 }
  67
  68
  69 WorldManT::~WorldManT()
  70 {
  71     // Did we really pair each call to LoadWorld() with a call to FreeWorld()?
  72     assert(Worlds.Size()==0);
  73 }
  74
  75
  76 void WorldManT::InitWorldForGfx(WorldInfoT& WI)
  77 {
  78     // Assert that this is done only once for any world instance.
  79     assert(!WI.Init4Gfx);
  80
  81 #if SHL_ENABLED
  82     WI.WorldPtr->SHLMapMan.InitTextures();
  83 #endif
  84
  85     static ConVarT r_gamma_lm("cl_gamma_lm", 1.0, ConVarT::FLAG_MAIN_EXE, "The gamma correction value that is applied to lightmaps on the next map load.");
  86
  87     static ConVarT r_lm_ambient_r("cl_lm_ambient_r", 0, ConVarT::FLAG_MAIN_EXE, "The red component of the lightmaps ambient (==minimum) color.");
  88     static ConVarT r_lm_ambient_g("cl_lm_ambient_g", 0, ConVarT::FLAG_MAIN_EXE, "The green component of the lightmaps ambient (==minimum) color.");
  89     static ConVarT r_lm_ambient_b("cl_lm_ambient_b", 0, ConVarT::FLAG_MAIN_EXE, "The blue component of the lightmaps ambient (==minimum) color.");
  90
  91     assert(r_gamma_lm.GetType()==ConVarT::Double);
  92     assert(r_lm_ambient_r.GetType()==ConVarT::Integer);
  93
  94     WI.WorldPtr->LightMapMan.InitTextures(float(r_gamma_lm.GetValueDouble()), r_lm_ambient_r.GetValueInt(), r_lm_ambient_g.GetValueInt(), r_lm_ambient_b.GetValueInt());
  95
  96     // Note that this world has been inited for graphics already.
  97     WI.Init4Gfx=true;
  98 }