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package body Grids is
function Create
(X, Y, W, H : in Integer;
Text : in String)
return Grid is
begin
return This : Grid :=
(FLTK.Widgets.Widget'(FLTK.Widgets.Create (X, Y, W, H, Text)) with
Cells => Square_Vector_Vectors.Empty_Vector,
Rows => 0, Cols => 0);
end Create;
function Create
(X, Y : in Integer)
return Grid is
begin
return Create (X, Y, 0, 0, "Sokoban Grid");
end Create;
procedure Set_Cols
(This : in out Grid;
To : in Natural) is
begin
This.Cells.Set_Length (Ada.Containers.Count_Type (To));
for X in Integer range This.Cols + 1 .. To loop
This.Cells.Replace_Element (X, Square_Vectors.Empty_Vector);
This.Cells.Reference (X).Set_Length (Ada.Containers.Count_Type (This.Rows));
for Y in Integer range 1 .. This.Rows loop
This.Cells.Reference (X).Replace_Element (Y, Squares.Void);
end loop;
end loop;
This.Cols := To;
This.Resize (Step * This.Cols, This.Get_H);
end Set_Cols;
procedure Set_Rows
(This : in out Grid;
To : in Natural) is
begin
for X in Integer range 1 .. This.Cols loop
This.Cells.Reference (X).Set_Length (Ada.Containers.Count_Type (To));
for Y in Integer range This.Rows + 1 .. To loop
This.Cells.Reference (X).Replace_Element (Y, Squares.Void);
end loop;
end loop;
This.Rows := To;
This.Resize (This.Get_W, Step * This.Rows);
end Set_Rows;
function In_Bounds
(This : in Grid;
X, Y : in Integer)
return Boolean is
begin
return X in 1 .. This.Cols and Y in 1 .. This.Rows;
end In_Bounds;
function Get_Square
(This : in Grid;
X, Y : in Integer)
return Squares.Square is
begin
if not This.In_Bounds (X, Y) then
return Squares.Void;
else
return This.Cells.Element (X).Element (Y);
end if;
end Get_Square;
procedure Set_Square
(This : in out Grid;
X, Y : in Integer;
Item : in Squares.Square) is
begin
This.Cells.Reference (X).Reference (Y) := Item;
end Set_Square;
procedure Pixel_To_Colrow
(This : in Grid;
X, Y : in Integer;
C, R : out Integer) is
begin
C := X / Step + 1;
R := Y / Step + 1;
end Pixel_To_Colrow;
procedure Colrow_To_Pixel
(This : in Grid;
C, R : in Integer;
X, Y : out Integer) is
begin
X := (C - 1) * Step;
Y := (R - 1) * Step;
end Colrow_To_Pixel;
procedure Draw
(This : in out Grid) is
begin
for Y in Integer range 1 .. This.Rows loop
for X in Integer range 1 .. This.Cols loop
This.Cells.Reference (X).Reference (Y).Draw
(This.Get_X + (X - 1) * Step,
This.Get_Y + (Y - 1) * Step);
end loop;
end loop;
end Draw;
end Grids;
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