game.cpp

   1 #include "game.h"
   2 #include "geometry.h"
   3 #include "luaenv.h"
   4 #include "timer.h"
   5 #include "controlewii.h"
   6 #include "shotmanager.h"
   7 #include "weaponitem.h"
   8 #include "enemy.h"
   9
  10 void Game::loadMap(std::string mapname) {
  11         if (mapa != NULL)
  12                 delete mapa;
  13         mapa = new Mapa(mapname,this);
  14 }
  15
  16 void Game::addPlatform(Platform* plat) {
  17         gravityManager->addPlatform(plat);
  18 }
  19
  20 void Game::removePlatforms() {
  21         gravityManager->removePlatforms();
  22 }
  23
  24 bool init_GL() {
  25     //Set clear color
  26     glClearColor( 1, 1, 1, 0 );
  27
  28     //Initialize modelview matrix
  29     glMatrixMode( GL_MODELVIEW );
  30     glLoadIdentity();
  31
  32         //Z-buffer
  33         glEnable(GL_DEPTH_TEST);
  34         glDepthFunc(GL_LEQUAL);
  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(ConfigManager *cfg) {
  54         gravityManager = new GravityManager;
  55         mapa = NULL;
  56         player = NULL;
  57         config = cfg;
  58     //Initialize SDL
  59     if( SDL_Init( SDL_INIT_EVERYTHING ) < 0 )
  60     {
  61         //erro
  62     }
  63
  64     //Create Window
  65     if( SDL_SetVideoMode( config->screen["width"], config->screen["height"], config->screen["bpp"], SDL_OPENGL | SDL_RESIZABLE ) == 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( "Big Stick", NULL );
  78 }
  79
  80 void Game::desenhaMira(Ponto aim) {
  81         glPushMatrix();
  82                 glTranslatef(aim.x,aim.y,0);
  83                 drawCircle(10,10);
  84         glPopMatrix();
  85 }
  86
  87 void Game::show() {
  88         glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
  89     double x, y;
  90         int width = config->screen["width"];
  91         int height = config->screen["height"];
  92
  93     if (player->getX() <= width/2)
  94         x = 0;
  95     else if (player->getX() >= mapa->xmax() - width/2)
  96         x = mapa->xmax() - width;
  97     else
  98         x = player->getX() - width/2;
  99
 100     if (player->getY() <= 2*height/3)
 101         y = 0;
 102     else if (player->getY() >= mapa->ymax() - height/3)
 103         y = mapa->ymax() - height;
 104     else
 105         y = player->getY() - 2*height/3;
 106         camera.x = x;
 107         camera.y = y;
 108         player->desenha();
 109         mapa->desenha();
 110         shotManager->desenha();
 111         enemyManager->desenha();
 112
 113     glMatrixMode( GL_PROJECTION );
 114     glLoadIdentity();
 115     glOrtho( camera.x, camera.x+width, camera.y+height, camera.y, -2, 2 );
 116         SDL_GL_SwapBuffers();
 117 }
 118
 119 void Game::reloadLua() {
 120         config->load();
 121         resize(config->screen["width"], config->screen["height"]);
 122         loadMap(config->maps.front());
 123         weaponManager->loadWeapons();
 124         shotManager->clearShots();
 125         player->equip(weaponManager->getWeapon("Shotgun"));
 126 }
 127
 128 void Game::setSpawn(Ponto spawn) {
 129         this->spawn = spawn;
 130 }
 131
 132 void Game::resize(GLsizei x, GLsizei y) {
 133         config->screen["width"] = x;
 134         config->screen["height"] = y;
 135         SDL_SetVideoMode(x, y, config->screen["bpp"], SDL_OPENGL | SDL_RESIZABLE);
 136         glViewport(0, 0, x, y);
 137 }
 138
 139 WeaponItem* Game::dropWeapon(std::string name) {
 140         return weaponManager->getItem(name);
 141 }
 142
 143 void Game::spawnEnemy(std::string name, Ponto position) {
 144         Enemy* enemy = enemyManager->createEnemy(name);
 145         enemy->setPosition(position.x,position.y);
 146 }
 147
 148 void Game::mainLoop() {
 149         Timer fps;
 150         shotManager = new ShotManager;
 151         weaponManager = new WeaponManager(this);
 152         collisionManager = new CollisionManager;
 153         weaponManager->loadWeapons();
 154         enemyManager = new EnemyManager(this);
 155         enemyManager->loadEnemies();
 156         loadMap(config->maps.front());
 157
 158         player = new Player(this, spawn, config->player["speed"]);
 159         Controle *c;
 160         c = new ControleWii(*player);
 161         player->equip(weaponManager->getWeapon("Shotgun"));
 162
 163         collisionManager->subscribe(player);
 164         std::list<WeaponItem*>::iterator itW;
 165         for (itW = mapa->items.begin(); itW != mapa->items.end(); itW++) {
 166                 collisionManager->subscribe(*itW);
 167                 gravityManager->subscribe(*itW);
 168         }
 169
 170         bool quit = false;
 171         rate = 1.0;
 172         while (!quit) {
 173                 int ifps = config->screen["fps"];
 174                 fps.start();
 175                 //player events
 176                 c->handleEvents();
 177                 enemyManager->think();
 178
 179                 //collision, gravity
 180                 collisionManager->update();
 181                 gravityManager->update();
 182
 183                 player->animate();
 184                 enemyManager->animate();
 185
 186                 //movements
 187                 player->move();
 188                 shotManager->move();
 189                 enemyManager->move();
 190                 mapa->move();
 191                 quit = c->getQuit();
 192                 show();
 193                 rate = ((double)fps.get_ticks())/ifps;
 194                 if (rate < 1.0)
 195                         rate = 1.0;
 196                 if (fps.get_ticks() < 1000 / ifps ) {
 197                         SDL_Delay( ( 1000 / ifps ) - fps.get_ticks() );
 198                 }
 199         }
 200         SDL_Quit();
 201 }