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| unit Deplacer;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, ExtCtrls,
Arrow, BGRABitmapTypes, BGRABitmap;
type
{ TDeplacer }
TDeplacer = class(TForm)
arrLeft: TArrow;
arrRight: TArrow;
arrDown: TArrow;
arrUp: TArrow;
Panel1: TPanel;
procedure arrDownClick(Sender: TObject);
procedure arrLeftClick(Sender: TObject);
procedure arrRightClick(Sender: TObject);
procedure arrUpClick(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure FormKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState);
procedure FormShow(Sender: TObject);
private
{ private declarations }
fond,
cercle,
anim: TBGRABitmap;
pos: TPoint;
nbCol,
nbLig: Integer;
procedure DeplacerCercle(c: Char);
procedure DessinPanel;
procedure RemplirFond;
public
{ public declarations }
end;
implementation
{$R *.lfm}
uses
strutils;
{ TDeplacer }
procedure TDeplacer.FormShow(Sender: TObject);
begin
anim := TBGRABitmap.Create(Panel1.Width, Panel1.Height, BGRAWhite);
fond := TBGRABitmap.Create(Panel1.Width, Panel1.Height, BGRAWhite);
try
cercle := TBGRABitmap.Create(Application.Location + 'imgs\cercleBlue.png');
except
cercle := TBGRABitmap.Create(50, 50, BGRA(255, 0, 0));
end;
pos.x := 1;
pos.y := 1;
RemplirFond;
DessinPanel;
end;
procedure TDeplacer.FormDestroy(Sender: TObject);
begin
FreeAndNil(cercle);
FreeAndNil(fond);
FreeAndNil(anim);
end;
procedure TDeplacer.FormKeyDown(Sender: TObject; var Key: Word;
Shift: TShiftState);
begin
ShowMessage(IntToStr(Key));
end;
procedure TDeplacer.arrUpClick(Sender: TObject);
begin
DeplacerCercle('U');
end;
procedure TDeplacer.arrDownClick(Sender: TObject);
begin
DeplacerCercle('D');
end;
procedure TDeplacer.arrLeftClick(Sender: TObject);
begin
DeplacerCercle('L');
end;
procedure TDeplacer.arrRightClick(Sender: TObject);
begin
DeplacerCercle('R');
end;
procedure TDeplacer.DeplacerCercle(c: Char);
begin
// TODO: contrôle pour ne pas sortir de l'écran
case c of
'U':
begin
pos.y := pos.y - 1;
end;
'D':
begin
pos.y := pos.y + 1;
end;
'L':
begin
pos.x := pos.x - 1;
end;
'R':
begin
pos.x := pos.x + 1;
end
else ;
end;
if (AnsiContainsText('UDLR', c)) then
begin
DessinPanel;
end;
end;
procedure TDeplacer.RemplirFond;
var
c, l: Integer;
aCase: TBGRABitmap;
begin
nbCol := trunc((Panel1.Width - 20) / 50);
nbLig := trunc((Panel1.Height - 20) / 50);
try
aCase := TBGRABitmap.Create(Application.Location + 'imgs\cercle50.png');
for c := 1 to nbCol do
for l := 1 to nbLig do
begin
fond.PutImage(10 + (c - 1) * 50,
10 + (l - 1) * 50,
aCase, dmDrawWithTransparency);
end;
finally
FreeAndNil(aCase);
end;
end;
procedure TDeplacer.DessinPanel;
begin
anim.PutImage(0, 0, fond, dmSet);
anim.PutImage(10 + (pos.x - 1) * 50,
10 + (pos.y - 1) * 50,
cercle, dmDrawWithTransparency);
anim.Draw(Panel1.Canvas, 0, 0);
end;
end. |
