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;