コード例 #1
0
ファイル: DemoRotateGears.java プロジェクト: workerhn/gdx2d
  @Override
  public void onGraphicRender(GdxGraphics g) {

    /* Update the world physics */
    PhysicsWorld.updatePhysics();

    /* Sync signal emulation using system time */
    boolean sync_signal = new TimeFloat().second % 60.0 == 0.0;

    /*
     * Second hand logic
     *
     * Stop when vertical, start when sync_sygnal
     */
    if (sync_signal) {
      motor_seconds.setMotorSpeed(MOTOR_SPEED_SECOND);
    } else {
      double angle = -hand_second.getBody().getAngle() % (2 * Math.PI);

      if (angle > 2 * Math.PI * 0.995 && motor_seconds.getSpeed() != 0.0) {
        motor_seconds.setMotorSpeed(0.0f);
      }
    }

    /*
     * Minute hand logic
     *
     * Move from 1 minute when sync_signal
     */
    if (sync_signal) {
      motor_minutes.setMotorSpeed(MOTOR_SPEED_MINUTE);
    } else {
      motor_minutes.setMotorSpeed(0.0f);
    }

    /* Get the size of the window */
    final int w = getWindowWidth();
    final int h = getWindowHeight();

    /* Clear the graphic to draw the new image */
    g.clear();

    if (debug_rendering) {
      debugRenderer.render(world, g.getCamera().combined);
      g.setColor(Color.WHITE);
    } else {
      /* Create a nice grey gradient for the background */
      for (int i = 0; i <= h; i++) {
        float c = 255 - i * 0.3f;
        g.setColor(new Color(c / 255, c / 255, c / 255, 1.0f));
        g.drawLine(0, h - i, w, h - i);
      }

      /* Draw the clock frame */
      g.drawPicture(CLOCK_CENTER.x, CLOCK_CENTER.y, bitmapClock);

      /* Draw the hands */
      g.drawTransformedPicture(
          CLOCK_CENTER.x,
          CLOCK_CENTER.y,
          (float) (Math.toDegrees(hand_hour.getBody().getAngle())),
          1.0f,
          bitmapHour);

      g.drawTransformedPicture(
          CLOCK_CENTER.x,
          CLOCK_CENTER.y,
          (float) (Math.toDegrees(hand_minute.getBody().getAngle())),
          1.0f,
          bitmapMinute);

      g.drawTransformedPicture(
          CLOCK_CENTER.x,
          CLOCK_CENTER.y,
          (float) (Math.toDegrees(hand_second.getBody().getAngle())),
          1.0f,
          bitmapSecond);
      g.setColor(Color.BLACK);
    }

    /* Display time in text */
    g.drawString(w - 200, h - 10, "Famous clock from\r\n" + "the Swiss Railways.");

    g.drawString(w - 200, h - 80, displayTime());

    g.drawSchoolLogo();
  }