Simba/Units/MMLCore/dtm.pas

unit dtm;

{$mode objfpc}{$H+}

interface

uses
  Classes, SysUtils, MufasaTypes;

type
    TMDTM = class(TObject)

           function AddDTM(d: TDTM): Integer;
           function AddpDTM(d: pDTM): Integer;
           function GetDTM(index: Integer; var dtm: pDTM): Boolean;
           procedure FreeDTM(DTM: Integer);
           Function StringToDTM(S: String): pDTM;

           function FindDTM(DTM: Integer; var x, y: Integer; x1, y1, x2,
                           y2: Integer): Boolean;
          function FindDTMs(DTM: Integer; var Points: TPointArray; x1, y1, x2,
                            y2: Integer): Boolean;
          function FindDTMRotated(DTM: Integer; var x, y: Integer; x1, y1, x2,
                                  y2: Integer; sAngle, eAngle, aStep: Extended;
                                  var aFound: Extended): Boolean;
          function FindDTMsRotated(DTM: Integer; var Points: TPointArray; x1,
                                  y1, x2, y2: Integer; sAngle, eAngle,
                                  aStep: Extended; var aFound: T2DExtendedArray)
                                  : Boolean;
           function pFindDTM(DTM: pDTM; var x, y: Integer; x1, y1, x2, y2:
           Integer): Boolean;
           function pFindDTMs(DTM: pDTM; var Points: TPointArray; x1, y1, x2,
                            y2: Integer): Boolean;
          function pFindDTMRotated(DTM: pDTM; var x, y: Integer; x1, y1, x2,
                                  y2: Integer; sAngle, eAngle, aStep: Extended;
                                  var aFound: Extended): Boolean;
          function pFindDTMsRotated(DTM: pDTM; var Points: TPointArray; x1,
                                  y1, x2, y2: Integer; sAngle, eAngle,
                                  aStep: Extended; var aFound: T2DExtendedArray)
                                  : Boolean;

           constructor Create(Owner: TObject);
           destructor Destroy; override;
    private
           function AreaShape(Color, Tolerance, Size, Shape: Integer; P: TPoint) : Boolean; inline;
    private
           Client: TObject;

           // For decompressing.
           BufferString: String;

           DTMList: Array Of pDTM;
           FreeSpots: Array Of Integer;
    end;

const
    dtm_Rectangle = 0;
    dtm_Cross = 1;
    dtm_DiagonalCross = 2;
    dtm_Circle = 3;
    dtm_Triangle = 4;

{
 I am not sure wether I should simply copy and paste the old DTM implementation,
 or rewrite it from scratch.

 I recall there was something partially wrong with SCAR-alike DTM conversions
 to Mufasa DTM's...

 The old DTM system problaby doesn't perform that well, but seems to be quite
 stable and complete.

 If I would rewrite it from scratch, it would probably be faster, and
 hopefully more efficient.That won't be too hard, especially since I have
 direct data access now. (TClient FTW!)

 Rewrite from scratch it will be, I guess.
 And AreaShape will be turned into a {$I }, inline simply doesn't cut it.

 ~Wizz
}


implementation
uses
    Client, dtmutil, paszlib, finder,
    graphics, // for TColor
    math // for max
    ;

type
   TBufferByteArray = Array[0..524287] of Byte;
   PBufferByteArray = ^TBufferByteArray;

constructor TMDTM.Create(Owner: TObject);
begin
  inherited Create;
  Self.Client := Owner;

  SetLength(DTMList, 0);
  SetLength(FreeSpots, 0);
  SetLength(BufferString, 524288);
end;

{$DEFINE DTM_DEBUG}
destructor TMDTM.Destroy;

{$IFDEF DTM_DEBUG}
var
   i, j: integer;
   b:boolean;
{$ENDIF}
begin
  {$IFDEF DTM_DEBUG}
  for i := 0 to high(DTMList) do
  begin
    b := false;
    for j := 0 to high(freespots) do
      if i = freespots[j] then
      begin
        b := true;
        break;
      end;
      if not b then
        writeln('DTM Number ' + inttostr(i) + ' was not freed');
  end;
  {$ENDIF}
  SetLength(DTMList, 0);
  SetLength(FreeSpots, 0);
  SetLength(BufferString, 0);

  inherited Destroy;
end;

type
    PMSimColor = function (Color1,Color2,Tolerance : Integer) : boolean of object;
    PMGetCol = function (x, y: integer): TColor of object;

Function TMDTM.AreaShape(Color, Tolerance, Size, Shape: Integer; P: TPoint) : Boolean; inline;

Var
   X, Y, S: Integer;
   SimCol: PMSimColor;
   GetCol: PMGetCol;

Begin
  SimCol := @TClient(Client).MFinder.SimilarColors;
  GetCol := @TClient(Client).MWindow.GetColor;
  Case Shape Of
    dtm_Rectangle:
    Begin
      {
        Example:
        3x3
        X X X
        X X X
        X X X
      }
      For X := P.X - Size To P.X + Size Do
        For Y := P.Y - Size To P.Y + Size Do
          If SimCol(GetCol(X, Y), Color, Tolerance) Then
          Begin
            Result := True;
	          Exit;
          End;
    End;

    dtm_Cross:
      {
        Example:
        3x3
          X
        X X X
          X
      }
    Begin
      For X := P.X - Size To P.X + Size Do
        If SimCol(GetCol(X, P.Y), Color, Tolerance) Then
        Begin
          Result := True;
          Exit;
        End;
      For Y := P.Y - Size To P.Y + Size Do
        If SimCol(GetCol(P.X, Y), Color, Tolerance) Then
        Begin
          Result := True;
          Exit;
        End;
    End;

    dtm_DiagonalCross:
      {
        Example:
        3x3
        X   X
          X
        X   X

      }
      Begin
      For S := -Size To Size Do
      Begin
        If SimCol(GetCol(P.X + S, P.Y + S), Color, Tolerance) Then
        Begin
          Result := True;
          Exit;
        End;
        If SimCol(GetCol(P.X + S, P.Y - S), Color, Tolerance) Then
        Begin
          Result := True;
          Exit;
        End;
      End;
    End;

    4:
    Begin
       raise Exception.CreateFmt('The given DTM Shape ([%d]) is not yet' +
                                 ' implemented.', [Shape]);
    End;

    Else
      WriteLn('Incorrect Shape');
  End;
  Result := False;
End;

{/\
  Rotates the given point (p) by A (in radians) around the point defined by cx, cy.
/\}

function RotatePoint(p: TPoint; angle, mx, my: Extended): TPoint; inline;

begin
  Result.X := Round(mx + cos(angle) * (p.x - mx) - sin(angle) * (p.y - my));
  Result.Y := Round(my + sin(angle) * (p.x - mx) + cos(angle) * (p.y- my));
end;

function HexToInt(HexNum: string): LongInt;inline;
begin
   Result:=StrToInt('$' + HexNum);
end;

function TMDTM.StringToDTM(S: String): pDTM;
var
  b: PBufferByteArray;
  Source : String;
  DestLen : longword;
  i,ii,c : integer;
begin
  SetLength(Result.p,0);
  SetLength(Result.c,0);
  SetLength(Result.t,0);
  SetLength(Result.asz,0);
  SetLength(Result.ash,0);
  ii := Length(S);
  if (ii = 0) or (ii mod 2 <> 0) then
    Exit;
  ii := ii div 2;
  SetLength(Source,ii);
  for i := 1 to ii do
    Source[i] := Chr(HexToInt(S[i * 2 - 1] + S[i * 2]));
  DestLen := Length(Self.BufferString);
  if uncompress(PChar(Self.Bufferstring),Destlen,pchar(Source), ii) = Z_OK then
  begin;
    if (Destlen mod 36) > 0 then
    begin;
      Writeln('Invalid DTM');
      Exit;
    end;
    DestLen := DestLen div 36;
    SetLength(Result.p,DestLen);
    SetLength(Result.c,DestLen);
    SetLength(Result.t,DestLen);
    SetLength(Result.asz,DestLen);
    SetLength(Result.ash,DestLen);
    b := @Self.Bufferstring[1];
    for i := 0 to DestLen - 1 do
    begin;
      c := i * 36;
      Result.p[i].x := PInteger(@b^[c+1])^;
      Result.p[i].y := PInteger(@b^[c+5])^;
      Result.asz[i] := PInteger(@b^[c+12])^;
      Result.ash[i] := PInteger(@b^[c+16])^;
      Result.c[i] := PInteger(@b^[c+20])^;
      Result.t[i] := PInteger(@b^[c+24])^;
    end;
  end;
end;

function TMDTM.AddDTM(d: TDTM): Integer;

begin
  if Length(FreeSpots) > 0 then
  begin
    DTMList[FreeSpots[High(FreeSpots)]] := TDTMTopDTM(d);
    Result := FreeSpots[High(FreeSpots)];
    SetLength(FreeSpots, High(FreeSpots));
  end
  else
  begin
    SetLength(DTMList, Length(DTMList) + 1);
    DTMList[High(DTMList)] := TDTMTopDTM(d);
    Result := High(DTMList);
  end;
end;

{/\
  Adds the given pDTM to the DTM Array, and returns it's index.
/\}

function TMDTM.AddpDTM(d: pDTM): Integer;

begin
  if Length(FreeSpots) > 0 then
  begin
    DTMList[FreeSpots[High(FreeSpots)]] := d;
    Result := FreeSpots[High(FreeSpots)];
    SetLength(FreeSpots, High(FreeSpots));
  end
  Else
  begin
    SetLength(DTMList, Length(DTMList) + 1);
    DTMList[High(DTMList)] := d;
    Result := High(DTMList);
  end;
end;

{/\
   Returns the DTM (pDTM type) in the variable dtm at the given index.
   Returns true is succesfull, false if the dtm does not exist.
/\}

function TMDTM.GetDTM(index: Integer; var dtm: pDTM): Boolean;
begin
  Result := True;
  try
    dtm := DTMList[index];
  except
    begin
      raise Exception.CreateFmt('The given DTM Index ([%d]) is invalid.',
      [index]);
      //WriteLn('DTM Index ' + IntToStr(index) + ' does not exist');
      Result := False;
    end;
  end
end;

{/\
  Unloads the DTM at the given index from the DTM Array.
  Notes:
  Will keep track of not used index, so it is very memory efficient.
/\}

Procedure TMDTM.FreeDTM(DTM: Integer);
begin
  try
    SetLength(DTMList[DTM].p, 0);
    SetLength(DTMList[DTM].c, 0);
    SetLength(DTMList[DTM].t, 0);
    SetLength(DTMList[DTM].asz, 0);
    SetLength(DTMList[DTM].ash, 0);
  except
    //WriteLn('Invalid DTM');
  end;
  SetLength(FreeSpots, Length(FreeSpots) + 1);
  FreeSpots[High(FreeSpots)] := DTM;
end;

procedure DTMBounds(dtm: pDTM; var x1, y1, x2, y2: Integer);
var
   i: Integer;
   B: TBox;

begin
  for i := 0 to high(dtm.p) do
  begin
    B.X1 := Min(B.X1, dtm.p[i].X - dtm.asz[i]);
    B.Y1 := Min(B.Y1, dtm.p[i].Y - dtm.asz[i]);
    B.X2 := Max(B.X2, dtm.p[i].X + dtm.asz[i]);
    B.Y2 := Max(B.Y2, dtm.p[i].Y + dtm.asz[i]);
  end;
  {writeln(inttostr(B.x1) + ', ' + inttostr(b.y1) + ', ' + inttostr(b.x2) +
          ', ' + inttostr(b.y2)); }
  x1 += -B.X1;
  y1 += -B.Y1;
  X2 -= B.X2;
  Y2 -= B.Y2;
end;

procedure DTMRotatedBounds(dtm: pDTM; var x1, y1, x2, y2: Integer);
var
   i: Integer;
   B: TBox;

begin
  for i := 0 to high(dtm.p) do
  begin
    B.X1 := Min(B.X1, dtm.p[i].X - dtm.asz[i]);
    B.Y1 := Min(B.Y1, dtm.p[i].Y - dtm.asz[i]);
    B.X2 := Max(B.X2, dtm.p[i].X + dtm.asz[i]);
    B.Y2 := Max(B.Y2, dtm.p[i].Y + dtm.asz[i]);
  end;

  x1 += -B.X1 * 2;
  y1 += -B.Y1 * 2;
  X2 -= B.X2 * 2;
  Y2 -= B.Y2 * 2;
end;
{
  Tries to find the given DTM (index). If found will put the point the dtm has
  been found at in x, y and result to true.
}
function TMDTM.FindDTM(DTM: Integer; var x, y: Integer; x1, y1, x2, y2: Integer): Boolean;
var
   temp: pDTM;
begin
  if GetDTM(DTM, temp) then
    Result := pFindDTM(temp, x, y, x1, y1, x2, y2)
  else
  begin
    x := 0;
    y := 0;
    Result := False;
  end;
end;

{
  Tries to find the given pDTM. If found will put the point the dtm has
  been found at in x, y and result to true.
}

function TMDTM.pFindDTM(DTM: pDTM; var x, y: Integer; x1, y1, x2, y2: Integer): Boolean;

var
   mP: TPointArray;
   I, J, H, dH: Integer;
   Found: Boolean;
   TempTP: TPoint;


begin

  for I := 1 to High(DTM.p) do
  begin
    DTM.p[I].x := DTM.p[I].x - DTM.p[0].x;
    DTM.p[I].y := DTM.p[I].y - DTM.p[0].y;

  end;

  {writeln(inttostr(x1) + ', ' + inttostr(y1) + ', ' + inttostr(x2) +
          ', ' + inttostr(y2));     }
  DTMBounds(DTM, x1, y1, x2, y2);
  {writeln(inttostr(x1) + ', ' + inttostr(y1) + ', ' + inttostr(x2) +
          ', ' + inttostr(y2));  }
  {If X2 > X1 then
     //Exit;
   If Y2 > Y1 then  }
     //Exit;
  // Will make sure there are no out of bounds exceptions, and will make it faster

  with TClient(Client) do
  begin
    MWindow.Freeze();

    MFinder.FindColorsTolerance(mP, DTM.c[Low(DTM.c)], x1, y1, x2, y2,
                                DTM.t[Low(DTM.t)]);
    MWindow.GetDimensions(H, dH);
  end;

  H := High(mP);
  dH := High(DTM.p);
  for I := 0 to H do
  begin
    // Use MainPoint's AreaSize and Shape.
    // for Loop on mP, depending on the AreaShape. then on all the code beneath
    // this point, use the var that is retrieved from the for loop.
    Found := True;
    for J := 1 to dH do
    begin
      TempTP.X := DTM.p[J].X + mP[I].X;
      TempTP.Y := DTM.p[J].Y + mP[I].Y;
      //Now would be the time to Rotate TempTP
      if not AreaShape(DTM.c[J], DTM.t[J], DTM.asz[J], DTM.ash[J], TempTP) then
      begin
        Found := False;
        Break;
      end;
    end;

    if Found then
    begin
      Result := True;
      x := mP[I].X;
      y := mP[I].Y;
      TClient(Client).MWindow.UnFreeze();
      Exit;
    end;
  end;
  TClient(Client).MWindow.UnFreeze();
  Result := False;
end;

{/\
  Tries to find the given DTM (index). Will return true if it has found one or more
  DTM's. All the occurances are stored in the Points (TPointArray)
/\}

function TMDTM.FindDTMs(DTM: Integer; Var Points: TPointArray; x1, y1, x2, y2: Integer): Boolean;
Var
   temp: pDTM;
Begin
  If GetDTM(DTM, temp) Then
    Result := pFindDTMs(temp, Points, x1, y1, x2, y2)
  Else
  Begin
    SetLength(Points, 0);
    Result := False;
  End;
End;



{/\
  Tries to find the given pDTM. Will return true if it has found one or more
  DTM's. All the occurances are stored in the Points (TPointArray)
/\}

Function TMDTM.pFindDTMs(DTM: pDTM; Var Points: TPointArray; x1, y1, x2, y2: Integer): Boolean;

Var
   mP: TPointArray;
   I, J, H, dH: Integer;
   Found: Boolean;
   TempTP: TPoint;

Begin
  Result := False;
  SetLength(Points, 0);
  For I := 1 To High(DTM.p) Do
  Begin
    DTM.p[I].x := DTM.p[I].x - DTM.p[0].x;
    DTM.p[I].y := DTM.p[I].y - DTM.p[0].y;
  End;

  {writeln(inttostr(x1) + ', ' + inttostr(y1) + ', ' + inttostr(x2) +
          ', ' + inttostr(y2));         }
  DTMBounds(DTM, x1, y1, x2, y2);
 { writeln(inttostr(x1) + ', ' + inttostr(y1) + ', ' + inttostr(x2) +
          ', ' + inttostr(y2));     }
   {If X2 > X1 then
     //Exit;
   If Y2 > Y1 then  }
     //Exit;
  // Will make sure there are no out of bounds exceptions, and will make it faster

  with TClient(Client) do
  begin
    MWindow.Freeze();

    MFinder.FindColorsTolerance(mP, DTM.c[Low(DTM.c)], x1, y1, x2, y2,
                                DTM.t[Low(DTM.t)]);
    MWindow.GetDimensions(H, dH);
  end;
  H := High(mP);
  dH := High(DTM.p);
  For I := 0 To H Do
  Begin
    Found := True;
    For J := 1 To dH Do
    Begin
      TempTP.X := DTM.p[J].X + mP[I].X;
      TempTP.Y := DTM.p[J].Y + mP[I].Y;
      If Not AreaShape(DTM.c[J], DTM.t[J], DTM.asz[J], DTM.ash[J], TempTP) Then
      Begin
        Found := False;
        Break;
      End;
    End;

    If Found Then
    Begin
      Result := True;
      SetLength(Points, Length(Points) + 1);
      Points[High(Points)] := mP[I];
    End;
  End;

  TClient(Client).MWindow.UnFreeze();
  Result := Length(Points) > 0;
End;

{/\
  Tries to find the given DTM (index). If found will put the point the dtm has
  been found at in x, y and result to true.
  Will rotate the DTM starting at sAngle, increasing by aStep until eAngle has been reached, or when the DTM has been found.
  Returns all Angles in an Extended array.
/\}

Function TMDTM.FindDTMRotated(DTM: Integer; Var x, y: Integer; x1, y1, x2, y2: Integer; sAngle, eAngle, aStep: Extended; Var aFound: Extended): Boolean;
Var
   temp: pDTM;
Begin
  If GetDTM(DTM, temp) Then
    Result := pFindDTMRotated(temp, x, y, x1, y1, x2, y2, sAngle, eAngle, aStep, aFound)
  Else
  Begin
    x := 0;
    y := 0;
    aFound := 0.0;
    Result := False;
  End;
End;

{/\
  Tries to find the given pDTM. If found will put the point the dtm has
  been found at in x, y and result to true.
  Will rotate the DTM starting at sAngle, increasing by aStep until eAngle has been reached, or when the DTM has been found.
  Returns all Angles in an Extended array.
/\}

Function TMDTM.pFindDTMRotated(DTM: pDTM; Var x, y: Integer; x1, y1, x2, y2: Integer; sAngle, eAngle, aStep: Extended; Var aFound: Extended): Boolean;

Var
   mP: TPointArray;
   I, J, H, dH, R, W: Integer;
   Angle: Array Of Extended;
   tAngle: Extended;
   Found: Boolean;
   TempTP: TPoint;
   MaxSubPointDist: TPoint;

Begin
  For I := 1 To High(DTM.p) Do
  Begin
    DTM.p[I].x := DTM.p[I].x - DTM.p[0].x;
    DTM.p[I].y := DTM.p[I].y - DTM.p[0].y;
  End;

  writeln(inttostr(x1) + ', ' + inttostr(y1) + ', ' + inttostr(x2) +
          ', ' + inttostr(y2));
  DTMRotatedBounds(DTM, x1, y1, x2, y2);
  writeln(inttostr(x1) + ', ' + inttostr(y1) + ', ' + inttostr(x2) +
          ', ' + inttostr(y2));
   {If X2 > X1 then
     //Exit;
   If Y2 > Y1 then  }
     //Exit;
  // Will make sure there are no out of bounds exceptions, and will make it faster

  with TClient(Client) do
  begin
    MWindow.Freeze();

    MFinder.FindColorsTolerance(mP, DTM.c[Low(DTM.c)], x1, y1, x2, y2,
                                DTM.t[Low(DTM.t)]);
    MWindow.GetDimensions(H, dH);
  end;

  H := High(mP);
  dH := High(DTM.p);
  For I := 0 To H Do
  Begin
    // Use MainPoint's AreaSize and Shape.
    // For Loop on mP, depending on the AreaShape. Then on all the code beneath
    // this point, use the var that is retrieved from the for loop.
    Found := True;
    SetLength(Angle, 0);
    Found := True;
    For J := 1 To dH Do
    Begin
      If Length(Angle) = 0 Then
      Begin
        tAngle := sAngle;
        While tAngle <= eAngle Do
        Begin
          TempTP.X := DTM.p[J].X + mP[I].X;
          TempTP.Y := DTM.p[J].Y + mP[I].Y;
          TempTP := RotatePoint(TempTP, tAngle, mP[I].X, mP[I].Y);
          If AreaShape(DTM.c[J], DTM.t[J], DTM.asz[J], DTM.ash[J], TempTP) Then
          Begin
            SetLength(Angle, Length(Angle) + 1);
            Angle[High(Angle)] := tAngle;
            Found := True;
          End;
          tAngle := tAngle + aStep;
        End;
      End;

      Found := Length(Angle) > 0;

      For R := 0 To High(Angle) Do
      Begin
        writeln('dtm: ' + inttostr(dtm.p[j].x) + ', ' + inttostr(dtm.p[j].y));
        writeln('mP: ' + inttostr(mP[i].x) + ', ' + inttostr(mP[i].y));
        TempTP.X := DTM.p[J].X + mP[I].X;
        TempTP.Y := DTM.p[J].Y + mP[I].Y;
        writeln('TempTP: ' + inttostr(TempTP.x) + ', ' + inttostr(TempTP.y));
        TempTP := RotatePoint(TempTP, Angle[R], mP[I].X, mP[I].Y);
        writeln('TempTP: ' + inttostr(TempTP.x) + ', ' + inttostr(TempTP.y));
        If Not AreaShape(DTM.c[J], DTM.t[J], DTM.asz[J], DTM.ash[J], TempTP) Then
        Begin
          For W := R To High(Angle) - 1 Do
            Angle[W] := Angle[W + 1];
          SetLength(Angle, Length(Angle) - 1);
          If Length(Angle) = 0 Then
          Begin
            Found := False;
            Break;
          End;
        End;
      End;
      If Not Found Then
        Break;
    End;

    If Found Then
    Begin
      Result := True;
      x := mP[I].X;
      y := mP[I].Y;
      aFound := Angle[0];
      TClient(Client).MWindow.UnFreeze();
      Exit;
    End;
  End;

  TClient(Client).MWindow.UnFreeze();
  Result := False;
End;

{/\
  Tries to find the given DTM (index). Will return true if it has found one or more
  DTM's. All the occurances are stored in the Points (TPointArray)
  Will rotate the DTM starting at sAngle, increasing by aStep until eAngle has been reached.
  Does not stop rotating when one occurance of a DTM has been found.
  Returns all Angles in a Two Dimensional Extended array.
/\}

Function TMDTM.FindDTMsRotated(DTM: Integer; Var Points: TPointArray; x1, y1, x2, y2: Integer; sAngle, eAngle, aStep: Extended; Var aFound: T2DExtendedArray): Boolean;
Var
   temp: pDTM;
Begin
  If GetDTM(DTM, temp) Then
    Result := pFindDTMsRotated(temp, Points, x1, y1, x2, y2, sAngle, eAngle, aStep, aFound)
  Else
  Begin
    SetLength(Points, 0);
    SetLength(aFound, 0);
    Result := False;
  End;
End;

{/\
  Tries to find the given pDTM. Will return true if it has found one or more
  DTM's. All the occurances are stored in the Points (TPointArray)
  Will rotate the DTM starting at sAngle, increasing by aStep until eAngle has been reached.
  Does not stop rotating when one occurance of a DTM has been found.
  Returns all Angles in a Two Dimensional Extended array.
/\}

Function TMDTM.pFindDTMsRotated(DTM: pDTM; Var Points: TPointArray; x1, y1, x2, y2: Integer; sAngle, eAngle, aStep: Extended; Var aFound: T2DExtendedArray): Boolean;

Var
   mP: TPointArray;
   I, J, H, dH, R, W, PCount: Integer;
   Angle: TExtendedArray;
   tAngle: Extended;
   Found: Boolean;
   TempTP: TPoint;

Begin
  For I := 1 To High(DTM.p) Do
  Begin
    DTM.p[I].x := DTM.p[I].x - DTM.p[0].x;
    DTM.p[I].y := DTM.p[I].y - DTM.p[0].y;
  End;

  DTMBounds(DTM, x1, y1, x2, y2);
   {If X2 > X1 then
     //Exit;
   If Y2 > Y1 then  }
     //Exit;
  // Will make sure there are no out of bounds exceptions, and will make it faster

  with TClient(Client) do
  begin
    MWindow.Freeze();

    MFinder.FindColorsTolerance(mP, DTM.c[Low(DTM.c)], x1, y1, x2, y2,
                                DTM.t[Low(DTM.t)]);
    MWindow.GetDimensions(H, dH);
  end;

  H := High(mP);
  dH := High(DTM.p);
  PCount := 0;
  For I := 0 To H Do
  Begin
    //WriteLn('I: ' + IntToStr(I));
    // Use MainPoint's AreaSize and Shape.
    // For Loop on mP, depending on the AreaShape. Then on all the code beneath
    // this point, use the var that is retrieved from the for loop.
    //Found := True;
    SetLength(Angle, 0);
    Found := True;
    For J := 1 To dH Do
    Begin
      If Length(Angle) = 0 Then
      Begin
        tAngle := sAngle;
        While tAngle <= eAngle Do
        Begin
          TempTP.X := DTM.p[J].X + mP[I].X;
          TempTP.Y := DTM.p[J].Y + mP[I].Y;
          TempTP := RotatePoint(TempTP, tAngle, mP[I].X, mP[I].Y);
          If AreaShape(DTM.c[J], DTM.t[J], DTM.asz[J], DTM.ash[J], TempTP) Then
          Begin
            SetLength(Angle, Length(Angle) + 1);
            Angle[High(Angle)] := tAngle;
            Found := True;
          End;
          tAngle := tAngle + aStep;
        End;
      End;

      Found := Length(Angle) > 0;
      {If Found Then
        WriteLn('Angle length after first search: ' + IntToStr(Length(Angle))); }
      For R := 0 To High(Angle) Do
      Begin
        TempTP.X := DTM.p[J].X + mP[I].X;
        TempTP.Y := DTM.p[J].Y + mP[I].Y;
        TempTP := RotatePoint(TempTP, Angle[R], mP[I].X, mP[I].Y);
        If Not AreaShape(DTM.c[J], DTM.t[J], DTM.asz[J], DTM.ash[J], TempTP) Then
        Begin
          For W := R To High(Angle) - 1 Do
            Angle[W] := Angle[W + 1];
          SetLength(Angle, Length(Angle) - 1);
          If Length(Angle) = 0 Then
          Begin
            Found := False;
            Break;
          End;
        End;
      End;
      If Not Found Then
        Break;
    End;

    If Found Then
    Begin
      SetLength(Points, PCount + 1);
      Points[PCount] := mP[I];
      PCount := PCount + 1;
      SetLength(aFound, Length(aFound) + 1);
      aFound[High(aFound)] := Angle;
      Continue;
    End;
  End;

  TClient(Client).MWindow.UnFreeze();
  Result := Length(Points) > 0;
End;

end.