Method Render

endless-tunnel/app/src/main/cpp/ui_scene.cpp:313–361

}

void UiWidget::Render(TrivialShader*, TextRenderer* textRenderer,
                      ShapeRenderer* shapeRenderer, int focus,
                      float transitionFactor) {
  if (!mVisible) {
    // that was easy.
    return;
  }

  bool pulse = IsClickableButton() && (focus != FOCUS_NO);
  float factor = pulse ? SineWave(1.0f - PULSE_AMOUNT, 1.0f + PULSE_AMOUNT,
                                  PULSE_PERIOD, 0.0f)
                       : 1.0f;
  const float* color = (mIsButton && focus == FOCUS_YES) ? BUTTON_FOCUS_COLOR
                       : (mIsButton && !mEnabled)        ? BUTTON_DISABLED_COLOR
                                                         : mTextColor;
  float borderSize = 0.0f;
  float x = mCenterX;
  float y = mCenterY;
  float w = mWidth;
  float h = mHeight;
  float fontScale = mFontScale;

  _apply_transition(mTransition, transitionFactor, &x, &y, &w, &h, &fontScale);

  // Note: right now, we don't support buttons that have borders AND are
  // transparent. They will be rendered incorrectly (the background will be the
  // border color).

  if (mHasBorder || (focus == FOCUS_YES && !mTransparent)) {
    // draw border
    shapeRenderer->SetColor(color);
    shapeRenderer->RenderRect(x, y, w * factor, h * factor);
    borderSize = BUTTON_BORDER_SIZE;
  }

  // draw background
  if (mIsButton && !mTransparent) {
    shapeRenderer->SetColor(mBackColor);
    shapeRenderer->RenderRect(x, y, w * factor * (1.0f - borderSize),
                              h * factor * (1.0f - borderSize));
  }

  // draw text
  if (mText) {
    textRenderer->SetColor(color);
    textRenderer->SetFontScale(fontScale * factor);
    textRenderer->RenderText(mText, x, y);
  }
}

void UiScene::OnCreateWidgets() {}