[AsaD]

собственно требуется написать программу в Delphi в которой 2 машинки будут ездить по кругу, поворачиваясь в зависимости от положения на круге, помогите разобраться что я делаю не так:

Код:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, StdCtrls;
const
  dest=500;
  des=10;
  n_v=10;
type
  TVector = record
      x,y,z:real;
      end;

type
  TPlanet = record
     pos   :TVector;
     grad  :real;
     vec   :real;
     image :TPicture;
  end;
type
  TForm1 = class(TForm)
    Timer1: TTimer;
    Image2: TImage;
    Image1: TImage;
    Image3: TImage;
    Button1: TButton;
    procedure Timer1Timer(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure FormActivate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure Image1MouseDown(Sender: TObject; Button: TMouseButton;
      Shift: TShiftState; X, Y: Integer);

  private
    { Private declarations }
  public
    { Public declarations }

    //////////3D////////
   Viewpoints  : array[1..n_v] of TVector;
   points      : array[1..n_v] of TVector;
   newPoints   : array[1..n_v] of TVector;
   Planets     : array[1..n_v] of TPlanet;
   draw_posled :array[1..n_v] of byte;
  end;

var
  Form1: TForm1;
  g:real;
  fil:text;
  v_n:byte;
  paused:boolean;

implementation

{$R *.dfm}
procedure RotateBitmap(Bitmap: TBitmap; Angle: Double; BackColor: TColor);
type
  TRGB = record
    B, G, R: Byte;
  end;
  pRGB = ^TRGB;
  pByteArray = ^TByteArray;
  TByteArray = array[0..32767] of Byte;
  TRectList = array[1..4] of TPoint;

var
  x, y, W, H, v1, v2: Integer;
  Dest, Src: pRGB;
  VertArray: array of pByteArray;
  Bmp: TBitmap;

  procedure SinCos(AngleRad: Double; var ASin, ACos: Double);
  begin
    ASin := Sin(AngleRad);
    ACos := Cos(AngleRad);
  end;

  function RotateRect(const Rect: TRect; const Center: TPoint; Angle: Double):
    TRectList;
  var
    DX, DY: Integer;
    SinAng, CosAng: Double;
    function RotPoint(PX, PY: Integer): TPoint;
    begin
      DX := PX - Center.x;
      DY := PY - Center.y;
      Result.x := Center.x + Round(DX * CosAng - DY * SinAng);
      Result.y := Center.y + Round(DX * SinAng + DY * CosAng);
    end;
  begin
    SinCos(Angle * (Pi / 180), SinAng, CosAng);
    Result[1] := RotPoint(Rect.Left, Rect.Top);
    Result[2] := RotPoint(Rect.Right, Rect.Top);
    Result[3] := RotPoint(Rect.Right, Rect.Bottom);
    Result[4] := RotPoint(Rect.Left, Rect.Bottom);
  end;

  function Min(A, B: Integer): Integer;
  begin
    if A < B then
      Result := A
    else
      Result := B;
  end;

  function Max(A, B: Integer): Integer;
  begin
    if A > B then
      Result := A
    else
      Result := B;
  end;

  function GetRLLimit(const RL: TRectList): TRect;
  begin
    Result.Left := Min(Min(RL[1].x, RL[2].x), Min(RL[3].x, RL[4].x));
    Result.Top := Min(Min(RL[1].y, RL[2].y), Min(RL[3].y, RL[4].y));
    Result.Right := Max(Max(RL[1].x, RL[2].x), Max(RL[3].x, RL[4].x));
    Result.Bottom := Max(Max(RL[1].y, RL[2].y), Max(RL[3].y, RL[4].y));
  end;

  procedure Rotate;
  var
    x, y, xr, yr, yp: Integer;
    ACos, ASin: Double;
    Lim: TRect;
  begin
    W := Bmp.Width;
    H := Bmp.Height;
    SinCos(-Angle * Pi / 180, ASin, ACos);
    Lim := GetRLLimit(RotateRect(Rect(0, 0, Bmp.Width, Bmp.Height), Point(0, 0),
      Angle));
    Bitmap.Width := Lim.Right - Lim.Left;
    Bitmap.Height := Lim.Bottom - Lim.Top;
    Bitmap.Canvas.Brush.Color := BackColor;
    Bitmap.Canvas.FillRect(Rect(0, 0, Bitmap.Width, Bitmap.Height));
    for y := 0 to Bitmap.Height - 1 do
    begin
      Dest := Bitmap.ScanLine[y];
      yp := y + Lim.Top;
      for x := 0 to Bitmap.Width - 1 do
      begin
        xr := Round(((x + Lim.Left) * ACos) - (yp * ASin));
        yr := Round(((x + Lim.Left) * ASin) + (yp * ACos));
        if (xr > -1) and (xr < W) and (yr > -1) and (yr < H) then
        begin
          Src := Bmp.ScanLine[yr];
          Inc(Src, xr);
          Dest^ := Src^;
        end;
        Inc(Dest);
      end;
    end;
  end;

begin
  Bitmap.PixelFormat := pf24Bit;
  Bmp := TBitmap.Create;
  try
    Bmp.Assign(Bitmap);
    W := Bitmap.Width - 1;
    H := Bitmap.Height - 1;
    if Frac(Angle) <> 0.0 then
      Rotate
    else
      case Trunc(Angle) of
        -360, 0, 360, 720: Exit;
        90, 270:
          begin
            Bitmap.Width := H + 1;
            Bitmap.Height := W + 1;
            SetLength(VertArray, H + 1);
            v1 := 0;
            v2 := 0;
          

[AsaD]

Код:

  if Angle = 90.0 then
              v1 := H
            else
              v2 := W;
            for y := 0 to H do
              VertArray[y] := Bmp.ScanLine[Abs(v1 - y)];
            for x := 0 to W do
            begin
              Dest := Bitmap.ScanLine[x];
              for y := 0 to H do
              begin
                v1 := Abs(v2 - x) * 3;
                with Dest^ do
                begin
                  B := VertArray[y, v1];
                  G := VertArray[y, v1 + 1];
                  R := VertArray[y, v1 + 2];
                end;
                Inc(Dest);
              end;
            end
          end;
        180:
          begin
            for y := 0 to H do
            begin
              Dest := Bitmap.ScanLine[y];
              Src := Bmp.ScanLine[H - y];
              Inc(Src, W);
              for x := 0 to W do
              begin
                Dest^ := Src^;
                Dec(Src);
                Inc(Dest);
              end;
            end;
          end;
      else
        Rotate;
      end;
  finally
    Bmp.Free;
  end;
end;

procedure TForm1.Timer1Timer(Sender: TObject);
var i,j:byte;
cs,sn:real;
min:real;
min_pos:byte;
box,get:TRECT;
n:integer;
begin
n:=0;
if (paused=true)then exit;
 g:=0.5;
 if g>2*pi then g:=0;

 for i:=1 to v_n do
  begin
   planets[i].grad:=planets[i].grad+planets[i].vec;
   if planets[i].grad>2*pi then planets[i].grad:=0;
   if planets[i].grad<0 then planets[i].grad:=2*pi;
   cs:=cos(planets[i].grad);
   sn:=sin(planets[i].grad);

   newPoints[i].x:=points[i].x*cs+points[i].z*sn;
   newPoints[i].y:=points[i].y;
   newPoints[i].z:=-points[i].x*sn+points[i].z*cs;


   newPoints[i].x:=newPoints[i].x;
   newPoints[i].y:=newPoints[i].y*cos(g)-newPoints[i].z*sin(g);
   newPoints[i].z:=newPoints[i].y*sin(g)+newPoints[i].z*cos(g);

   Viewpoints[i].x:=((newpoints[i].x*dest/(dest+newpoints[i].z))*80)+(image1.Width/2);
   Viewpoints[i].y:=((newpoints[i].y*dest/(dest+newpoints[i].z))*80)+(image1.Height/2);
   Viewpoints[i].z:=newpoints[i].z;
   planets[i].pos:=Viewpoints[i];
  end;
 image1.Canvas.Lock;
 image1.canvas.Brush.Color:=clblack;
 image1.canvas.CopyRect(image1.Canvas.ClipRect,image3.Canvas,image3.Canvas.ClipRect);
 image1.Canvas.Brush.Color:=clred;
 image2.Canvas.Brush.Color:=clwhite;
 image2.Canvas.Pen.Color:=clwhite;
 for j:=1 to v_n do
   begin
   min:=planets[1].pos.z;
   min_pos:=1;
   for i:= 2 to v_n do
      if planets[i].pos.z>min then
           begin
             min:=planets[i].pos.z;
             min_pos:=i;
           end;
   planets[min_pos].pos.z:=-3000;
   draw_posled[j]:=min_pos;
   end;
 for i:= 1 to v_n do
   begin
    begin
      image2.Canvas.Rectangle(image2.Canvas.ClipRect);
        box.Left:=0;
        box.Top :=0;
        box.Right:=round((planets[draw_posled[i]].image.Graphic.Width)*des/(des+Viewpoints[draw_posled[i]].z));
        box.Bottom:=round((planets[draw_posled[i]].image.Graphic.Height)*des/(des+Viewpoints[draw_posled[i]].z));

        get.Left:=0;
        get.Top:=0;
        get.Right:=planets[draw_posled[i]].image.Bitmap.Width;
        get.Bottom:=planets[draw_posled[i]].image.Bitmap.Height;
        image2.Transparent:=true;
        image2.Picture.Bitmap.TransparentColor:=$FFFFFF;
        image2.Picture.Bitmap.Transparent:=true;
        image2.Canvas.copyRect(box,planets[draw_posled[i]].image.Bitmap.Canvas,planets[draw_posled[i]].image.Bitmap.Canvas.ClipRect);
        image2.Width:=box.Right-box.Left;
        image2.Height:=box.Bottom-box.Top;
        n:=n+1;
        RotateBitmap(image2.Picture.Bitmap,1, clWhite);

        image1.Canvas.Draw(round(planets[draw_posled[i]].pos.x-(planets[draw_posled[i]].image.Graphic.Width div 2)*des/(des+Viewpoints[draw_posled[i]].z)),
                           round(planets[draw_posled[i]].pos.y-(planets[draw_posled[i]].image.Graphic.Height div 2)*des/(des+Viewpoints[draw_posled[i]].z)),
                           image2.Picture.Bitmap);
       end;
   end;
 image1.Canvas.Unlock;

 end;

procedure TForm1.FormDestroy(Sender: TObject);
var
  i:integer;
begin
 for i:=1 to v_n do
   begin
    planets[i].image.Destroy;           //убиваем из памяти все динамически подгруженые рисунки
   end;

end;

procedure TForm1.FormActivate(Sender: TObject);
var i:integer;
begin
  Image1.Canvas.Pixels[ 0,0]:=$FFFFFF;
  image1.Canvas.Brush.Color:=clwhite;
  image1.Canvas.Rectangle(Image3.Canvas.ClipRect);

  image3.Canvas.Brush.Color:=clblack;
  image3.Canvas.Rectangle(Image3.Canvas.ClipRect);
  for i:=1 to 1000 do
    begin
      Image3.Canvas.Pixels[ random(form1.Width),
                           random(form1.Height)]:=$FFFFFF;
    end;
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  i:byte;
  str:string;
begin
  v_n:=8;
  g:=0;
 AssignFile(fil,'3d.txt');
 reset(fil);
  readln(fil,v_n);
  for i:=1 to v_n do
   begin
    readln(fil);
    readln(fil,points[i].x);
    readln(fil,points[i].y);
    readln(fil,points[i].z);
    readln(fil,planets[i].vec);
    planets[i].grad:=0;
    planets[i].image:=TPicture.Create;
    readln(fil,str);
    planets[i].image.LoadFromFile(str);
   end;
 CloseFile(fil);

 g:=pi/2;

 g:=0;
 for i:=1 to v_n do
  begin
   newPoints[i]:=points[i];
   Viewpoints[i].x:=round((newpoints[i].x*100)+(form1.Width/2));
   Viewpoints[i].y:=round((newpoints[i].y*100)+(form1.Height/2));
  end;
  end;
procedure TForm1.FormCreate(Sender: TObject);
begin
  AnimateWindow(Handle, 700, AW_BLEND)    //плавное появление формы
end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
AnimateWindow(Handle, 700, AW_HIDE or AW_BLEND)    //плавное растворение формы
end;

procedure TForm1.Image1MouseDown(Sender: TObject; Button: TMouseButton;
  Shift: TShiftState; X, Y: Integer);
begin
if paused=false then
paused:=True
else
begin
paused:=False;
end;
end;
end.