game.cpp

   1 #include "game.h"
   2 #include "geometry.h"
   3 #include "luaenv.h"
   4 #include "timer.h"
   5 #include "controleteclado.h"
   6 #include "shotmanager.h"
   7
   8 const int SCREEN_WIDTH = 640;
   9 const int SCREEN_HEIGHT = 480;
  10 const int SCREEN_BPP = 32;
  11 const int FRAMES_PER_SECOND = 60;
  12
  13 void Game::loadMap(std::string mapname) {
  14         if (mapa != NULL)
  15                 delete mapa;
  16         const double alturaChao = 400;
  17         mapa = new Mapa(mapname,this);
  18 }
  19
  20 void Game::addPlatform(Platform* plat) {
  21         gravityManager->addPlatform(plat);
  22 }
  23
  24 void Game::removePlatforms() {
  25         gravityManager->removePlatforms();
  26 }
  27
  28 bool init_GL()
  29 {
  30     //Set clear color
  31     glClearColor( 1, 1, 1, 0 );
  32
  33     //Initialize modelview matrix
  34     glMatrixMode( GL_MODELVIEW );
  35     glLoadIdentity();
  36
  37     //Linhas
  38     glLineWidth(2.5);
  39     glEnable(GL_LINE_SMOOTH);
  40     glEnable(GL_BLEND);
  41     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
  42     glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
  43
  44     //If there was any errors
  45     if( glGetError() != GL_NO_ERROR )
  46     {
  47         return false;
  48     }
  49
  50     //If everything initialized
  51     return true;
  52 }
  53
  54 Game::Game()
  55 {
  56         gravityManager = new GravityManager;
  57         mapa = NULL;
  58         player = NULL;
  59     //Initialize SDL
  60     if( SDL_Init( SDL_INIT_EVERYTHING ) < 0 )
  61     {
  62         //erro
  63     }
  64
  65     //Create Window
  66     if( SDL_SetVideoMode( SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_BPP, SDL_OPENGL ) == NULL )
  67     {
  68         //erro
  69     }
  70
  71     //Initialize OpenGL
  72     if( !init_GL() )
  73     {
  74         //erro
  75     }
  76
  77     //Set caption
  78     SDL_WM_SetCaption( "Prototipo Jogo", NULL );
  79 }
  80
  81 void Game::desenhaMira(Ponto aim) {
  82         glPushMatrix();
  83                 glTranslatef(camera.x+aim.x,camera.y+aim.y,0);
  84                 drawCircle(10,10);
  85         glPopMatrix();
  86 }
  87
  88 void Game::show() {
  89         glClear( GL_COLOR_BUFFER_BIT );
  90     double x, y;
  91
  92     if (player->getX() <= SCREEN_WIDTH/2)
  93         x = 0;
  94     else if (player->getX() >= mapa->xmax() - SCREEN_WIDTH/2)
  95         x = mapa->xmax() - SCREEN_WIDTH;
  96     else
  97         x = player->getX() - SCREEN_WIDTH/2;
  98
  99     if (player->getY() <= 2*SCREEN_HEIGHT/3)
 100         y = 0;
 101     else if (player->getY() >= mapa->ymax() - SCREEN_HEIGHT/3)
 102         y = mapa->ymax() - SCREEN_HEIGHT;
 103     else
 104         y = player->getY() - 2*SCREEN_HEIGHT/3;
 105         camera.x = x;
 106         camera.y = y;
 107         player->desenha();
 108         mapa->desenha();
 109         shotManager->desenha();
 110
 111     glMatrixMode( GL_PROJECTION );
 112     glLoadIdentity();
 113     glOrtho( camera.x, camera.x+SCREEN_WIDTH, camera.y+SCREEN_HEIGHT, camera.y, -1, 1 );
 114         SDL_GL_SwapBuffers();
 115 }
 116
 117 void Game::reloadLua() {
 118         loadMap(currentMap);
 119         weaponManager->loadWeapons();
 120         player->equip(weaponManager->getWeapon("Shotgun"));
 121 }
 122
 123 void Game::setSpawn(Ponto spawn) {
 124         this->spawn = spawn;
 125 }
 126
 127 void Game::mainLoop() {
 128         luaRun luaEnv;
 129         luaEnv.registerScripts();
 130         luaEnv.loadScripts();
 131         Timer fps;
 132
 133         player = new Player(this);
 134         currentMap = "map1.lua";
 135         loadMap(currentMap);
 136         player->setPosition(spawn.x,spawn.y);
 137         ControleTeclado c(*player);
 138         bool quit = false;
 139         shotManager = new ShotManager;
 140         weaponManager = new WeaponManager;
 141         weaponManager->loadWeapons();
 142         player->equip(weaponManager->getWeapon("Shotgun"));
 143         while (!quit) {
 144                 fps.start();
 145                 //player events
 146                 c.handleEvents();
 147
 148                 //colision, gravity
 149                 gravityManager->update();
 150
 151                 //movements
 152                 player->move();
 153                 shotManager->move();
 154                 quit = c.getQuit();
 155                 show();
 156                 if (fps.get_ticks() < 1000 / FRAMES_PER_SECOND ) {
 157                         SDL_Delay( ( 1000 / FRAMES_PER_SECOND ) - fps.get_ticks() );
 158                 }
 159         }
 160         SDL_Quit();
 161 }