背景：我创建了一个可玩的迷宫游戏，但是当迷宫变大时，出错的机会更多，并且需要很长时间才能再次到达迷宫的起点，有人告诉我这真的很烦人。
问：我想创建一个暂停游戏功能，当用户按下按钮键时，会弹出一个菜单，允许用户返回主菜单或重新启动迷宫。
我对在代码中从哪里开始知之甚少，因为我不想弄乱已经添加的任何内容。
我添加了绘制迷宫//创建迷宫，初始化访问和行走//移除迷宫的墙壁，表单键向下//移动播放器和下面的计时器//碰撞检测程序。
希望有人能帮忙？
非常感谢。
`procedure TfrmMazeDesign.draw_maze(square_size: integer);
var
row, col : integer;
begin
// setup default walls as "WWWW" wall on all four sides.
SetLength(Shapes,height+3, width+3, 2 ) ;
for row := 1 to height do
begin
for col := 1 to width+2 do
begin
Shapes[row,col,0]:= TShape.Create(Self);
Shapes[row,col,0].Parent := Self;
with Shapes[row,col,0] do
begin
Width := 5;
Height := square_size;
Left := 100+ ((col-1) * square_size);
Top := 50+ ((row-1) * square_size);
Brush.Color := RGB(255, 255,25);
Shape := stRectangle;
end;
end;
end;
for row := 1 to height+1 do
begin
for col := 1 to width+1 do
begin
Shapes[row,col,1]:= TShape.Create(Self);
Shapes[row,col,1].Parent := Self;
with Shapes[row,col,1] do
begin
Width := square_size;
Height := 5;
Left := 100+ ((col-1) * square_size);
Top := 50+ ((row-1) * square_size);
Brush.Color := RGB(255, 255,25);
Shape := stRectangle;
end;
end;
end;
end;
procedure TfrmMazeDesign.initialise_visited(var visited: Tvisited);
var
row, col: integer;
begin
for row := 0 to height+2 do
for col := 0 to width+2 do
if (col = 0) or (row = 0) or (row = height+1) or (col= width+2) then
visited[row,col] := True
else
visited[row,col] := False;
end;
procedure TFrmMazeDesign.walk(visited: Tvisited; x: integer; y:integer);
var
xx,yy, counter, ran_direction: integer;
direction: Tstringlist; // 1= Up, 2= right, 3 = down, 4 = left
text: string;
begin
visited[x,y] := True;
direction := TStringlist.Create;
direction.Add('1');
direction.Add('2');
direction.Add('3');
direction.Add('4');
for counter := direction.Count - 1 downto 0 do
direction.Exchange(counter, Random(counter+1));
for counter := 0 to direction.Count-1 do
begin
ran_direction := StrtoInt(direction[counter]);
if ran_direction= 1 then
begin
xx := x-1;
yy := y
end;
if ran_direction = 2 then
begin
xx := x+1;
yy := y
end;
if ran_direction = 3 then
begin
xx := x;
yy := y-1
end;
if ran_direction= 4 then
begin
xx := x;
yy := y+1
end;
if visited[xx,yy] = False then
begin
if xx = x then
shapes[x,Max(yy,y),0].visible := False;
if yy = y then
shapes[Max(xx,x),y,1].visible := False;
walk (visited, xx,yy)
end;
end;
end;
procedure TfrmMazeDesign.FormKeyDown(Sender: TObject; var Key: Word;
Shift: TShiftState);
begin
case Key of
VK_UP:
direction := 1;
VK_DOWN:
direction := 2;
VK_LEFT:
direction := 3;
VK_RIGHT:
direction := 4;
end;
end;
procedure TfrmMazeDesign.FormOpen(Sender: TObject);
var
block_height: integer;
xx,yy: integer;
visited: Tvisited;
monster, monster2: TMonster;
Shape_height : integer;
Shape_Width : integer;
imgfinish_height : integer;
maze_width : integer;
begin
width := frmdifficulty.ScrollBar1.Position;
height := frmdifficulty.ScrollBar1.Position;
maze_width := 650;
block_height := maze_width div width;
Shape_height := round( block_height * 0.5);
imgfinish_height := round(block_height * 0.5);
draw_maze(block_height);
SetLength(visited, height+10, width+10) ;
initialise_visited(visited);
walk(visited,3,3);
ShpUser.height := Shape_height;
ShpUser.Width := Shape_height;
imgfinish.width := Shape_height;
imgfinish.height := shape_height;
ShpUser.Shape := UShapeEditor.frmShape.shpShape.Shape;
ShpUser.Brush.color := UShapeEditor.frmShape.shpShape.Brush.color;
FDateTimeTo := StrToDateTime(FormatDateTime('dd' + FormatSettings.DateSeparator + 'mm' +
FormatSettings.DateSeparator + 'yyyy', Now)); Incsecond(time,120);
Timer1.Enabled := True;
monster := TMonster.Create(Self);
monster.Parent := Self;
monster.SetSizes(width, height, shape_height, 55+ maze_width + 10,665);
monster.start;
monster2 := TMonster.Create(Self);
monster2.Parent := Self;
monster2.SetSizes(width, height, shape_height, 50+ maze_width + 10,565);
monster2.start;
end;
procedure TfrmMazeDesign.Timer1Timer(Sender: TObject);
var IntersectionRect: TRect;
collision, test_collision : boolean;
up : boolean;
right : boolean;
max_width, max_height : integer;
xx, yy : integer ;
aRect1: TRect;
buttonSelected : Integer;
collisionend: boolean;
frmMazeDesign: TfrmMazeDesign;
row, col, hoz_vert : integer;
begin
hoz_vert := 0;
xx := 0;
yy := 0;
case direction of
1:begin //Up
yy := -3;
end;
2: begin //down
yy := + 3;
end;
3: begin //left
xx := -3;
end;
4: begin //right
xx := + 3;
end;
end;
repeat
if hoz_Vert = 0 then begin
max_width := width +3;
max_height := Height+1;
end else begin
max_width := width+2;
max_height := Height+2;
end;
row := 1;
repeat
col := 1;
repeat
aRect1 := Rect(ShpUser.Left+xx, ShpUser.Top+yy, ShpUser.Left+ShpUser.width+xx, ShpUser.top+ ShpUser.Height+yy);
if Shapes[row,col,hoz_vert].visible = True then
collision := IntersectRect(IntersectionRect, aRect1, Shapes[row,col,hoz_vert].BoundsRect) ;
col := col + 1;
until (collision) or (col = max_width);
row := row + 1 ;
until (collision) or (row = max_height);
hoz_vert := hoz_vert +1;
until (collision) or (hoz_vert = 2);
if (collision = False) and (direction <> 0) then begin
ShpUser.Top := ShpUser.Top + yy;
ShpUser.Left := ShpUser.Left + xx;
end;
if IntersectRect(IntersectionRect, imgfinish.BoundsRect, Shpuser.BoundsRect) then
begin
Collisionend := true;
if collisionend = true then
frmfinish.Show;
direction:= 0;
end;`
这相对容易添加到您的程序中，该程序已经是事件驱动的。总之，您需要执行以下操作：
- 添加一个
Boolean标志，可能名为Paused，设置为在游戏开始时False。 - 当用户按下暂停按钮时，将
Paused标志设置为True。 - 当用户按下恢复按钮时，将
Paused标志设置为False。 - 在时间事件处理程序中，在更新位置之前检查
Paused标志。如果Paused标志为True，则只需在执行任何其他操作之前退出计时器事件处理程序即可。