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  • Committer: Gusatv Hartvigsson
  • Date: 2011-12-29 20:10:21 UTC
  • Revision ID: gustav.hartvigsson@gmail.com-20111229201021-sp1csy430cb7icv2
* initial code of a Vala port of invaders...
*  BUG: event handlingn not working.

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src/Game.vala
 
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namespace invadersGame{
 
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  using SDL;
 
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  using SDLGraphics;
 
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  class Game : Object{
 
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    private const int SCREEN_HEIGHT = 640;
 
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    private const int SCREEN_WIDTH = 480;
 
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    private const int SCREEN_FPS = 60;
 
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    private const int SCREEN_BPP = 32;
 
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    private uint32 fpsTimer;
 
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    private unowned SDL.Screen screen;
 
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    private GLib.Rand rand;
 
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    private bool eventBool[322];
 
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    private bool isRun;
 
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    public Game(){
 
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      stdout.printf("Running contructor...\n");
 
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      this.isRun = true;
 
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      this.rand = new GLib.Rand();
 
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      for(int i = 0; i < 322; i++) { // init them all to false
 
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        eventBool[i] = false;
 
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      }
 
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    }
 
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    public void mainLoop(){
 
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      initScreen();
 
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      while(this.isRun){
 
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        fpsTimer = SDL.Timer.get_ticks();
 
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        draw();
 
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        process_events();
 
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        if(SDL.Timer.get_ticks() - fpsTimer < 1000/SCREEN_FPS){
 
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          SDL.Timer.delay(1000/SCREEN_FPS - (SDL.Timer.get_ticks() - fpsTimer));
 
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        }
 
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      }
 
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    }
 
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    public void initScreen(){
 
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      uint32 VideoFlags = SurfaceFlag.DOUBLEBUF
 
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                            | SurfaceFlag.HWACCEL
 
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                            | SurfaceFlag.HWSURFACE;
 
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      this.screen = Screen.set_video_mode (SCREEN_WIDTH, SCREEN_HEIGHT,
 
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                                            SCREEN_BPP, VideoFlags);
 
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      if(this.screen == null){
 
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        stderr.printf("Could not initize video \n");
 
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      }
 
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      SDL.WindowManager.set_caption("Invaders_vala","");
 
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    }
 
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    private void draw(){
 
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      //TODO
 
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      this.screen.flip();
 
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    }
 
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    private void process_events(){
 
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      Event event = Event();
 
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      while(Event.poll(event) != 0){
 
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        switch(event.type){
 
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          case EventType.QUIT:
 
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            stdout.printf("quiting...\n");
 
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            this.isRun = false;
 
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            break;
 
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          case EventType.KEYDOWN:
 
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            stdout.printf("keydown\n");
 
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            this.eventBool[event.key.keysym.sym] = true;
 
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            break;
 
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          case EventType.KEYUP:
 
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            stdout.printf("keyup\n");
 
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            this.eventBool[event.key.keysym.sym] = false;
 
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            break;
 
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        }
 
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      }
 
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    }
 
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  }
 
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}