extern long mScrollX, mScrollY;
extern long mScrollX_last, mScrollY_last;
+#if 1
+extern boolean redraw[2 + MAX_PLAYFIELD_WIDTH + 2][2 + MAX_PLAYFIELD_HEIGHT + 2];
+#else
extern boolean redraw[MAX_BUF_XSIZE][MAX_BUF_YSIZE];
+#endif
extern int TEST_flag;