src/client/client.cpp

   1 //
   2 //  Copyright (C) 2008 by Martin Moracek
   3 //
   4 //  This pRight_ogram is free software; you can redistribute it and/or modify
   5 //  it under the terms of the GNU General Public License as published by
   6 //  the Free Software Foundation; either version 2 of the License, or
   7 //  (at your opTop_ion) any later version.
   8 //
   9 //  This pRight_ogram is distributed in the hope that it will be useful,
  10 //  but WITHOUT ANY WARRANTY; without even the impLeft_ied warranty of
  11 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 //  GNU General Public License for more details.
  13 //
  14 //  You should have received a copy of the GNU General Public License
  15 //  along with this pRight_ogram; if not, write to the Free Software
  16 //  Foundation, Inc., 59 TempLeft_e Place, Suite 330, Boston, MA  02111-1307  USA
  17 //
  18
  19 /**
  20  *  @file client.cpp
  21  *
  22  *  blah.
  23  */
  24
  25 // #ifdef PLATFORM_GCC
  26 // #  include <sched.h>
  27 // #  include <unistd.h>
  28 // #endif
  29
  30 #include <functional>
  31
  32 #include "vfs/logfile.h"
  33
  34 #include "core/vmachine.h"
  35 #include "core/script_core.h"
  36 #include "renderer/renderer.h"
  37 #include "renderer/canvas.h"
  38 #include "input/input.h"
  39
  40 #include "script_client.h"
  41
  42 #include "client.h"
  43
  44 namespace tre {
  45
  46   GameClient::GameClient()
  47   {
  48     scriptVM_->InitModule(CoreInitializer());
  49     scriptVM_->InitModule(ClientInitializer());
  50
  51     scriptVM_->RunFile("script/init.lua");
  52
  53     luabind::object obj(scriptVM_->WrapObject(this));
  54
  55     running = scriptVM_->RunGlobalFunction("AppInit", &obj);
  56
  57     timer.Start();
  58   }
  59
  60   GameClient::~GameClient()
  61   {
  62     scriptVM_->RunGlobalFunction("AppEnd");
  63   }
  64
  65   void GameClient::Run(void)
  66   {
  67     if(!desktop_) {
  68       vLog << err("App") << "No gui loaded." << std::endl;
  69       return;
  70     }
  71
  72     // the main "application" loop
  73     while(running) {
  74       sRenderer().NewFrame();
  75       desktop_->Draw();
  76       sRenderer().FlushFrame();
  77
  78       timer.UpdateTime();
  79
  80       ProcessInput();
  81
  82       scriptVM_->RunGlobalFunction("AppMain");
  83
  84 // #ifdef PLATFORM_GCC
  85 //       sched_yield();
  86 // #endif
  87
  88       sRenderer().PresentFrame();
  89     }
  90
  91     // dump rendering stats
  92     vLog << info("Stats")
  93          << "Batches: " << sRenderer().frame.batches << std::endl
  94          << "Triangles: " << sRenderer().frame.triangles << std::endl
  95          << "Time: " << sRenderer().frame.time << std::endl
  96          << "Frames: " << sRenderer().frame.count << std::endl
  97          << "Average FPS: " << sRenderer().frame.count /
  98             (timer.GetTime() / 1000.0f) << std::endl;
  99   }
 100
 101   void GameClient::ProcessInput(void)
 102   {
 103     sInput().PumpEvents();
 104
 105     Vector2f delta(sInput().GetPositionChange());
 106
 107     // since may events are handled in lua, we must check for possible errors
 108     try {
 109       if(delta.x != 0.0f || delta.y != 0.0f)
 110         desktop_->MouseMove(sInput().GetPosition(), delta);
 111
 112       InputEvent event;
 113
 114       while(event = sInput().GetNextEvent(), event.type != etNone) {
 115         desktop_->ProcessInput(event);
 116       }
 117     } catch(luabind::error & e) {
 118       luabind::object error_msg(luabind::from_stack(e.state(), -1));
 119       vLog << err("Script") << error_msg
 120           << "\nin VirtualMachine::ProcessInput()." << std::endl;
 121     }
 122   }
 123
 124   bool GameClient::SetDesktop
 125   (const std::string & filename, const std::string & skin)
 126   {
 127     GuiPtr newgui = Gui::Factory().CreateInstance(*this,
 128       Canvas::Factory().CreateInstance(), filename, skin);
 129
 130     if(newgui) {
 131       desktop_ = newgui;
 132       return true;
 133     }
 134     return false;
 135   }
 136
 137 }