Game.cpp

   1 #include <time.h>
   2 #include <iostream>
   3 #include <sstream>
   4 #include <assert.h>
   5 #include "SDLVideoOut.h"
   6 #include "Game.h"
   7
   8 namespace botor
   9 {
  10
  11         SDLVideoOut *Game::video = 0;
  12         Map Game::map;
  13         Player Game::player;
  14
  15
  16     Game::Game()
  17     {
  18         Game::video = new SDLVideoOut( 800, 600, 32 );
  19     }
  20
  21     Game::~Game()
  22     {
  23         delete Game::video;
  24     }
  25
  26     void Game::Initialize()
  27     {
  28
  29         Game::map.load( "map.txt" );
  30         Game::player.Teleport( 2,1 );
  31
  32         Game::map.Initialize();
  33
  34     }
  35
  36     void Game::DeInitialize()
  37     {
  38         Game::map.unload();
  39     }
  40
  41     void Game::Update()
  42     {
  43         SDL_Event event;
  44
  45         while( SDL_PollEvent( &event ) )
  46         {
  47                 HandleInput( &event );
  48                 Game::player.HandleInput( &event );
  49         }
  50
  51         if( Game::player.isAlive() )
  52         {
  53                 Game::map.Update();
  54                 Game::player.Update();
  55         }
  56
  57         if( Game::player.getLives() == 0 )
  58                 game_is_running = false;
  59
  60
  61     }
  62
  63     void Game::HandleInput( SDL_Event *event )
  64     {
  65         switch (event->type)
  66         {
  67                 // exit if the window is closed
  68                 case SDL_QUIT:
  69                 game_is_running = false;
  70                 break;
  71
  72                 // check for keypresses
  73                 case SDL_KEYDOWN:
  74                 {
  75                         // exit if ESCAPE is pressed
  76                         if (event->key.keysym.sym == SDLK_ESCAPE)
  77                         game_is_running = false;
  78                         break;
  79                 }
  80         } // end switch
  81     }
  82
  83     void Game::Draw()
  84     {
  85         std::stringstream status;
  86
  87         if( !Game::video )
  88                 return;
  89
  90         Game::video->Clear( Game::video->MapRGB( 255, 255, 255 ) );
  91
  92         Game::map.Draw( );
  93
  94         if(Game::player.isAlive())
  95                 Game::player.Draw( );
  96         else
  97                 Game::video->DrawString( "You are dead! Press [Enter] to continue!", 0, 0, 255, 0, 0 );
  98
  99         status << "Leben: " << Game::player.getLives() << " Pos: " << (int)Game::player.getMapX() << "/" << (int)Game::player.getMapY();
 100
 101         Game::video->DrawString( status.str().c_str(), 0, 20, 0, 0, 0 );
 102
 103
 104         Game::video->Flip();
 105
 106     }
 107
 108     void Game::run()
 109     {
 110         int loops;
 111
 112         Initialize();
 113
 114         game_is_running = true;
 115         clock_t nextUpdate = clock();
 116
 117         while( game_is_running )
 118         {
 119             loops = 0;
 120
 121             while( clock() > nextUpdate && loops < MAX_FRAMESKIP )
 122             {
 123                 Update();
 124
 125                 nextUpdate += SKIP_FRAMES;
 126
 127                 loops++;
 128             }
 129
 130             Draw();
 131
 132         }
 133
 134         DeInitialize();
 135
 136     }
 137
 138     SDLVideoOut *Game::getVideo()
 139     {
 140         return Game::video;
 141     }
 142
 143     Map *Game::getMap()
 144     {
 145         return &Game::map;
 146     }
 147
 148     Player *Game::getPlayer()
 149     {
 150         return &Game::player;
 151     }
 152
 153 }