hedgewars/uAILandMarks.pas
author Wuzzy <Wuzzy2@mail.ru>
Thu, 26 Jul 2018 18:01:32 +0200
changeset 13563 af92481415ef
parent 10017 de822cd3df3a
permissions -rw-r--r--
TechRacer: Fix gears not spawning on turn start when player pressed control right at start The activationStage was horribly programmed and heavily relied on timer. There was a sweet spot at turn start that if you managed to push a key right at the start of turn, you skip the Ready phase and the activationStage would advance, causing the gear spawning code to be skipped. This fix greatly simplies the spawning phase.

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.