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IF (xSetup OR iIncr <> iIncr_Old) THEN
	iY_Old := iY_In;
	iY_Out := iHeight / 2 - 50;
	xSetup := FALSE;
END_IF
IF (iY_In > iY_Old) THEN
	iY_Out := iY_Out + (iY_In - iY_Old)*iIncr;
	iY_Out : INT := iHeight/2 -50; // 50 is half the size of the boards
VAR
	iY_Old : INT := iY_In;
	iIncr_Old : INT;