private void InitializeStageBar()
    {
        stageInitData.MinValue     = 0;
        stageInitData.MaxValue     = felledTreesCountToWin;
        stageInitData.CurrentValue = 0;

        StageExampleTreeProgressBar.InitializeProgress(stageInitData);
    }
 private void UpdateStageProgress()
 {
     stageUpdateData.CurrentValue = felledTreesCount;
     StageExampleTreeProgressBar.UpdateProgress(stageUpdateData);
 }