void SetDrawtoField(int);
void RedrawPlayfield();
+void BlitScreenToBitmap_RND(Bitmap *);
void BlitScreenToBitmap(Bitmap *);
void BackToFront();
void DrawBackground(int, int, int, int);
void DrawBackgroundForFont(int, int, int, int, int);
void DrawBackgroundForGraphic(int, int, int, int, int);
+boolean CheckIfGlobalBorderHasChanged();
+void RedrawGlobalBorder();
void MarkTileDirty(int, int);
void SetBorderElement();