Remove checkpoints in ASA: Getting to the device
This means the player now must win this mission in one go.
Justification: There were many ways for the mission to be saved in an unwinnable state,
there are many ways to win this mission and the checkpoints try to "force" one
particular way. Also, this mission isn't too long anyway.
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.