hedgewars/uAILandMarks.pas
author Wuzzy <Wuzzy2@mail.ru>
Sat, 06 Jun 2020 15:40:51 +0200
changeset 15597 6e72bd61002e
parent 10017 de822cd3df3a
permissions -rw-r--r--
Disable gfMoreWind for land objects on turn end only after a fixed-time delay 15s sounds much, but it's the average amount for gfMineStrike mines to settle naturally. And it would be very confusing to see falling mines suddenly not caring about gfMoreWind for no apparent reason. Note this whole thing is a giant hack anyway, to prevent a turn being blocked by infinitely bouncing mines. The better solution would be to help gfMoreWind-affected land objects settle naturally more reliably even under extreme wind. But this commit is "good enough" for now. If you don't like the delay, you can always tweak the constant.

unit uAILandMarks;

interface
const
    markWalkedHere = $01;
    markHJumped    = $02;
    markLJumped    = $04;

procedure addMark(X, Y: LongInt; mark: byte);
function  checkMark(X, Y: LongInt; mark: byte) : boolean;
procedure clearAllMarks;
procedure clearMarks(mark: byte);
procedure setAILandMarks;

procedure initModule;
procedure freeModule;

implementation
uses uVariables;

const gr = 2;

var marks: array of array of byte;
    WIDTH, HEIGHT: Longword;

procedure addMark(X, Y: LongInt; mark: byte);
begin
    if((X and LAND_WIDTH_MASK) = 0) and ((Y and LAND_HEIGHT_MASK) = 0) then
        begin
        X:= X shr gr;
        Y:= Y shr gr;
        marks[Y, X]:= marks[Y, X] or mark
        end
end;

function  checkMark(X, Y: LongInt; mark: byte) : boolean;
begin
    checkMark:= ((X and LAND_WIDTH_MASK) = 0)
        and ((Y and LAND_HEIGHT_MASK) = 0)
        and ((marks[Y shr gr, X shr gr] and mark) <> 0)
end;

procedure clearAllMarks;
var
    Y, X: Longword;
begin
    for Y:= 0 to Pred(HEIGHT) do
        for X:= 0 to Pred(WIDTH) do
            marks[Y, X]:= 0
end;

procedure clearMarks(mark: byte);
var
    Y, X: Longword;
begin
    for Y:= 0 to Pred(HEIGHT) do
        for X:= 0 to Pred(WIDTH) do
            marks[Y, X]:= marks[Y, X] and (not mark)
end;

procedure setAILandMarks;
begin
    WIDTH:= LAND_WIDTH shr gr;
    HEIGHT:= LAND_HEIGHT shr gr;

    SetLength(marks, HEIGHT, WIDTH);
end;

procedure initModule;
begin
end;

procedure freeModule;
begin
    SetLength(marks, 0, 0);
end;

end.