use "common.ztl"

fn login(s: 9p, p: Player, password: str): []Player {
   s.auth(p.username, password)
   return s.read("players")
}

fn main(argc: i32, argv: []str): i32 {
   const screen_width = 800;
   const screen_height = 450;

   let username = argv[0];
   let password = argv[1];

   let s = tunnel("localhost:25565");
   s.attach();

   let me = Player(
      username,
      Vec(0.0, 1.0, 2.0),
      purple
   );
   let players = login(s, me, password);

   let camera = Camera3D(
      Vec(0.0, 1.0, 0.0),
      45.0,
      :CAMERA_PERSPECTIVE,
      Vec(
         me.pos.x + 10.0,
         me.pos.y + 10.0,
         me.pos.z
      ),
      me.pos
   );

   init_window("zwl client : raylib", screen_width, screen_height);
   set_target_fps(60);

   (* Main game loop *)
   while ( not window_should_close() ) { 
      let player_updated = false;

      if (is_key_down(KEY_RIGHT)) {
         me.pos.x = me.pos.x + 0.2;
         player_updated = true;
      }

      if (is_key_down(KEY_LEFT)) {
         me.pos.x = me.pos.x - 0.2;
         player_updated = true;
      }

      if (is_key_down(KEY_DOWN)) {
         me.pos.z = me.pos.z + 0.2;
         player_updated = true;
      }
      
      if (is_key_down(KEY_UP)) {
         me.pos.z = me.pos.z - 0.2;
         player_updated = true;
      }

      sync_camera(s, me, camera);

      if (player_updated) {
         players = move(s, me);
      } else {
         players = ping(s, me);
      }

      begin_drawing();
      clear_background(RAYWHITE);

      begin_mode_3d(camera);
      
      (* Draw floor *)
      draw_grid(30, 1.0);

      draw_cube(me.pos, 0.5, 0.5, 0.5, me.apperance);

      for (player in players) {
         draw_cube(player.pos, 0.5, 0.5, 0.5, player.apperance);
      }

      end_mode_3d();

      end_drawing();
   }

   logout(me);
   close_window(); (* Close window and OpenGL context *)
}