hedgewars/uAILandMarks.pas
author Mitchell Kember <mk12360@gmail.com>
Fri, 30 Nov 2012 20:00:53 -0500
changeset 8175 2c233349df21
parent 7850 fcbb024090a4
child 10017 de822cd3df3a
permissions -rw-r--r--
Google Code-in: Center help text field Modifies the grid layout slightly so that the help text which appears when hovering over certain elements is centered with respect to the window, even when there are more buttons on one side. https://google-melange.appspot.com/gci/task/view/google/gci2012/7968226
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unit uAILandMarks;
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interface
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const 
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    markWalkedHere = $01;
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    markHJumped    = $02;
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    markLJumped    = $04;
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procedure addMark(X, Y: LongInt; mark: byte);
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function  checkMark(X, Y: LongInt; mark: byte) : boolean;
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procedure clearAllMarks;
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procedure clearMarks(mark: byte);
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procedure setAILandMarks;
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procedure initModule;
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procedure freeModule;
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implementation
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uses uVariables;
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const gr = 2;
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var marks: array of array of byte;
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    WIDTH, HEIGHT: Longword;
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procedure addMark(X, Y: LongInt; mark: byte);
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begin
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    if((X and LAND_WIDTH_MASK) = 0) and ((Y and LAND_HEIGHT_MASK) = 0) then
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        begin
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        X:= X shr gr;
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        Y:= Y shr gr;
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        marks[Y, X]:= marks[Y, X] or mark
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        end
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end;
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function  checkMark(X, Y: LongInt; mark: byte) : boolean;
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begin
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    checkMark:= ((X and LAND_WIDTH_MASK) = 0) 
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        and ((Y and LAND_HEIGHT_MASK) = 0) 
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        and ((marks[Y shr gr, X shr gr] and mark) <> 0)
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end;
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procedure clearAllMarks;
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var 
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    Y, X: Longword;
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begin
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    for Y:= 0 to Pred(HEIGHT) do
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        for X:= 0 to Pred(WIDTH) do
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            marks[Y, X]:= 0
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end;
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procedure clearMarks(mark: byte);
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var 
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    Y, X: Longword;
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begin
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    for Y:= 0 to Pred(HEIGHT) do
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        for X:= 0 to Pred(WIDTH) do
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            marks[Y, X]:= marks[Y, X] and (not mark)
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end;
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procedure setAILandMarks;
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begin
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    WIDTH:= LAND_WIDTH shr gr;
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    HEIGHT:= LAND_HEIGHT shr gr;
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    SetLength(marks, HEIGHT, WIDTH);
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end;
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procedure initModule;
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begin
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end;
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procedure freeModule;
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begin
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    SetLength(marks, 0, 0);
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end;
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end.