game.cpp

   1 #include "game.h"
   2 #include "geometry.h"
   3 #include "luaenv.h"
   4 #include "timer.h"
   5 #include "controleteclado.h"
   6
   7 const int SCREEN_WIDTH = 640;
   8 const int SCREEN_HEIGHT = 480;
   9 const int SCREEN_BPP = 32;
  10 const int FRAMES_PER_SECOND = 60;
  11
  12 void Game::loadMap(std::string mapname) {
  13         if (mapa != NULL)
  14                 delete mapa;
  15         const double alturaChao = 400;
  16         mapa = new Mapa(mapname,this);
  17 }
  18
  19 void Game::addPlatform(Platform* plat) {
  20         gravityManager->addPlatform(plat);
  21 }
  22
  23 void Game::removePlatforms() {
  24         gravityManager->removePlatforms();
  25 }
  26
  27 bool init_GL()
  28 {
  29     //Set clear color
  30     glClearColor( 1, 1, 1, 0 );
  31
  32     //Initialize modelview matrix
  33     glMatrixMode( GL_MODELVIEW );
  34     glLoadIdentity();
  35
  36     //Linhas
  37     glLineWidth(2.5);
  38     glEnable(GL_LINE_SMOOTH);
  39     glEnable(GL_BLEND);
  40     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  41     glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
  42
  43     //If there was any errors
  44     if( glGetError() != GL_NO_ERROR )
  45     {
  46         return false;
  47     }
  48
  49     //If everything initialized
  50     return true;
  51 }
  52
  53 Game::Game()
  54 {
  55         gravityManager = new GravityManager;
  56         mapa = NULL;
  57         player = NULL;
  58     //Initialize SDL
  59     if( SDL_Init( SDL_INIT_EVERYTHING ) < 0 )
  60     {
  61         //erro
  62     }
  63
  64     //Create Window
  65     if( SDL_SetVideoMode( SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, SDL_OPENGL ) == NULL )
  66     {
  67         //erro
  68     }
  69
  70     //Initialize OpenGL
  71     if( !init_GL() )
  72     {
  73         //erro
  74     }
  75
  76     //Set caption
  77     SDL_WM_SetCaption( "Prototipo Jogo", NULL );
  78 }
  79
  80 void Game::desenhaMira(Ponto aim) {
  81         glPushMatrix();
  82                 glTranslatef(camera.x+aim.x,camera.y+aim.y,0);
  83                 drawCircle(10,10);
  84         glPopMatrix();
  85 }
  86
  87 void Game::show() {
  88         glClear( GL_COLOR_BUFFER_BIT );
  89     double x, y;
  90
  91     if (player->getX() <= SCREEN_WIDTH/2)
  92         x = 0;
  93     else if (player->getX() >= mapa->xmax() - SCREEN_WIDTH/2)
  94         x = mapa->xmax() - SCREEN_WIDTH;
  95     else
  96         x = player->getX() - SCREEN_WIDTH/2;
  97
  98     if (player->getY() <= 2*SCREEN_HEIGHT/3)
  99         y = 0;
 100     else if (player->getY() >= mapa->ymax() - SCREEN_HEIGHT/3)
 101         y = mapa->ymax() - SCREEN_HEIGHT;
 102     else
 103         y = player->getY() - 2*SCREEN_HEIGHT/3;
 104         camera.x = x;
 105         camera.y = y;
 106         player->desenha();
 107         mapa->desenha();
 108
 109     glMatrixMode( GL_PROJECTION );
 110     glLoadIdentity();
 111     glOrtho( camera.x, camera.x+SCREEN_WIDTH, camera.y+SCREEN_HEIGHT, camera.y, -1, 1 );
 112         SDL_GL_SwapBuffers();
 113 }
 114
 115 void Game::reloadLua() {
 116         loadMap(currentMap);
 117         weaponManager->loadWeapons();
 118         player->equip(weaponManager->getWeapon("Shotgun"));
 119 }
 120
 121 void Game::setSpawn(Ponto spawn) {
 122         this->spawn = spawn;
 123 }
 124
 125 void Game::mainLoop() {
 126         luaRun luaEnv;
 127         luaEnv.registerScripts();
 128         luaEnv.loadScripts();
 129         Timer fps;
 130
 131         player = new Player(this);
 132         currentMap = "map1.lua";
 133         loadMap(currentMap);
 134         player->setPosition(spawn.x,spawn.y);
 135         ControleTeclado c(*player);
 136         bool quit = false;
 137         weaponManager = new WeaponManager;
 138         weaponManager->loadWeapons();
 139         player->equip(weaponManager->getWeapon("Shotgun"));
 140         while (!quit) {
 141                 fps.start();
 142                 //player events
 143                 c.handleEvents();
 144
 145                 //colision, gravity
 146                 gravityManager->update();
 147
 148                 //movements
 149                 player->move();
 150                 quit = c.getQuit();
 151                 show();
 152                 if (fps.get_ticks() < 1000 / FRAMES_PER_SECOND ) {
 153                         SDL_Delay( ( 1000 / FRAMES_PER_SECOND ) - fps.get_ticks() );
 154                 }
 155         }
 156         SDL_Quit();
 157 }