game.cpp
Go to the documentation of this file.00001 00002 // 00003 // PocketHAL 00004 // Copyright 2004 by Thierry Tremblay 00005 // 00007 00008 #include "game.h" 00009 00010 00011 00012 namespace PHAL 00013 { 00014 00016 // 00017 // Game 00018 // 00020 00021 Game::Game() 00022 : m_display( 0 ) 00023 { 00024 } 00025 00026 00027 00028 Game::~Game() 00029 { 00030 delete m_display; 00031 } 00032 00033 00034 00035 bool Game::Initialize() 00036 { 00037 m_bShutdown = false; 00038 00039 if (!GameBase::Initialize( m_config )) 00040 return false; 00041 00042 DisplayParameters params( m_config.m_orientation ); 00043 00044 m_display = Display::Create( GameBase::GetWindow(), params ); 00045 if (!m_display) 00046 return false; 00047 00048 m_lastInactivityReset = GetClock(); 00049 00050 return true; 00051 } 00052 00053 00054 00055 bool Game::Run() 00056 { 00057 if (!Initialize()) 00058 return false; 00059 00060 if (!OnInitialize()) 00061 return false; 00062 00063 return GameBase::Run(); 00064 } 00065 00066 00067 00068 void Game::Shutdown() 00069 { 00070 m_bShutdown = true; 00071 } 00072 00073 00074 00075 void Game::BuildFPSString( int fps ) 00076 { 00077 if (fps > 99999) 00078 fps = 99999; 00079 00080 int i0 = fps / 10000; fps -= i0 * 10000; 00081 int i1 = fps / 1000; fps -= i1 * 1000; 00082 int i2 = fps / 100; fps -= i2 * 100; 00083 int i3 = fps / 10; fps -= i3 * 10; 00084 int i4 = fps; 00085 00086 m_fpsString[0] = char('0' + i0); 00087 m_fpsString[1] = char('0' + i1); 00088 m_fpsString[2] = char('0' + i2); 00089 m_fpsString[3] = char('.'); 00090 m_fpsString[4] = char('0' + i3); 00091 m_fpsString[5] = char('0' + i4); 00092 m_fpsString[6] = char(0); 00093 } 00094 00095 00096 00098 // IGame callbacks 00100 00101 bool Game::OnInitialize() 00102 { 00103 m_lastFPSTime = GetClock(); 00104 m_nbFrames = 0; 00105 m_fps = 0; 00106 00107 BuildFPSString( 0 ); 00108 00109 return true; 00110 } 00111 00112 00113 void Game::OnShutdown() 00114 { 00115 delete m_display; 00116 m_display = 0; 00117 } 00118 00119 00120 bool Game::OnGameLoop() 00121 { 00122 ++m_nbFrames; 00123 00124 // Check if it is time to calculate the FPS 00125 uint32_t now = GetClock(); 00126 uint32_t delta = now - m_lastFPSTime; 00127 00128 if (delta >= 500) 00129 { 00130 // Calculate FPS 00131 m_fps = (m_nbFrames*100000) / delta; 00132 00133 BuildFPSString( m_fps ); 00134 00135 // Reset vars 00136 m_lastFPSTime = now; 00137 m_nbFrames = 0; 00138 } 00139 00140 00141 // Reset inactivity once in a while 00142 if (now - m_lastInactivityReset >= 5000) 00143 { 00144 m_lastInactivityReset = now; 00145 ResetInactivity(); 00146 } 00147 00148 00149 return !m_bShutdown; 00150 } 00151 00152 00153 void Game::OnSuspend() 00154 { 00155 #if defined(PHAL_PLATFORM_SYMBIAN) 00156 m_display->HandleForegroundEvent( false ); 00157 #endif 00158 } 00159 00160 00161 void Game::OnResume() 00162 { 00163 #if defined(PHAL_PLATFORM_SYMBIAN) 00164 m_display->HandleForegroundEvent( true ); 00165 #endif 00166 00167 m_lastInactivityReset = GetClock(); 00168 } 00169 00170 00171 void Game::OnKeyDown( int key ) 00172 { 00173 Shutdown(); 00174 } 00175 00176 00177 void Game::OnKeyUp( int key ) 00178 { 00179 } 00180 00181 00182 void Game::OnStylusDown( Point p ) 00183 { 00184 } 00185 00186 00187 void Game::OnStylusMove( Point p ) 00188 { 00189 } 00190 00191 00192 void Game::OnStylusUp( Point p ) 00193 { 00194 } 00195 00196 00197 00198 00199 } // end of namespace PHAL