Anonymous user
Maze generation: Difference between revisions
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Delphi small fix
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m (Delphi small fix) |
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Line 2,072:
Position := Point(Random(mwidth), Random(mheight));
Route := TStack<TPoint>.Create;
try
with Position do▼
while True do▼
repeat▼
SetLength(Pool, 0);
if (y > 0) and not Maze[x, y-1].Visited then Pool := Pool + [Point(0, -1)];▼
if (x < mwidth-1) and not Maze[x+1, y].Visited then Pool := Pool + [Point(1, 0)];▼
if (y < mheight-1) and not Maze[x, y+1].Visited then Pool := Pool + [Point(0, 1)];▼
if (x > 0) and not Maze[x-1, y].Visited then Pool := Pool + [Point(-1, 0)];▼
if Length(Pool) = 0 then // no direction to draw from▼
▲ with Position do
begin▼
▲ while True do
if Route.Count = 0 then Exit; // and we are back at start so this is the end▼
▲ begin
Position := Route.Pop;▼
▲ repeat
until Length(Pool) > 0;▼
▲ if (y > 0) and not Maze[x, y-1].Visited then Pool := Pool + [Point(0, -1)];
▲ if (x < mwidth-1) and not Maze[x+1, y].Visited then Pool := Pool + [Point(1, 0)];
▲ if (y < mheight-1) and not Maze[x, y+1].Visited then Pool := Pool + [Point(0, 1)];
▲ if (x > 0) and not Maze[x-1, y].Visited then Pool := Pool + [Point(-1, 0)];
▲ if Length(Pool) = 0 then // no direction to draw from
▲ begin
▲ if Route.Count = 0 then Exit; // and we are back at start so this is the end
▲ Position := Route.Pop;
end;▼
▲ until Length(Pool) > 0;
d := Random(Length(Pool));
Offset(Pool[d]);
if Maze[x, y].Visited then Continue;
Maze[x, y].Visited := True;
if Pool[d].y = -1 then Maze[x, y+1].PassTop := True; // comes from down to up ( ^ )
if Pool[d].x = 1 then Maze[x, y].PassLeft := True; // comes from left to right ( --> )
if Pool[d].y = 1 then Maze[x, y].PassTop := True; // comes from left to right ( v )
if Pool[d].x = -1 then Maze[x+1, y].PassLeft := True; // comes from right to left ( <-- )
Route.Push(Position);
finally
Route.Free;▼
end;
▲ Route.Free;
end;
Line 2,112 ⟶ 2,114:
begin
for x := 0 to mwidth - 1 do
if Maze[x, y].PassTop then Write('+ ') else Write('+---');
Writeln('+');
for x := 0 to mwidth - 1 do
if Maze[x, y].PassLeft then Write(' ') else Write('| ');
Writeln('|');
end;
for x := 0 to mwidth - 1 do Write('+---');
Writeln('+');
end;
Line 2,129 ⟶ 2,131:
end.</lang>
{{out}}
<pre>+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
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+ +---+ +---+---+ + +---+---+ + + + +---+ +---+ + +-
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+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+</pre>
=={{header|EasyLang}}==
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