378 lines
8.7 KiB
Plaintext
378 lines
8.7 KiB
Plaintext
(*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* http://www.opensource.org/licenses/cddl1.php.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* http://www.opensource.org/licenses/cddl1.php. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying * information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Portions Copyright 2007 Andreas Schneider
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*)
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unit UStatics;
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{$mode objfpc}{$H+}
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interface
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uses
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SysUtils, Classes, UMulBlock, UGenericIndex, UTiledata, UWorldItem;
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type
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TStaticItem = class(TWorldItem)
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constructor Create(AOwner: TWorldBlock; AData: TStream; ABlockX, ABlockY: Word); overload;
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constructor Create(AOwner: TWorldBlock; AData: TStream); overload;
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function Clone: TStaticItem; override;
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function GetIdentifier: Integer;
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function GetSize: Integer; override;
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procedure Write(AData: TStream); override;
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protected
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FHue, FOrgHue: Word;
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procedure SetHue(AHue: Word);
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function HasChanged: Boolean; override;
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public
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procedure InitOriginalState; override;
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property Hue: Word read FHue write SetHue;
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end;
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TStaticBlock = class(TWorldBlock)
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constructor Create(AData: TStream; AIndex: TGenericIndex; AX, AY: Word); overload;
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constructor Create(AData: TStream; AIndex: TGenericIndex); overload;
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destructor Destroy; override;
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function Clone: TStaticBlock; override;
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function GetSize: Integer; override;
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procedure Write(AData: TStream); override;
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procedure ReverseWrite(AData: TStream);
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procedure Sort;
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protected
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FItems: TList;
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public
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property Items: TList read FItems write FItems;
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end;
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TSeperatedStaticBlock = class(TStaticBlock)
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constructor Create(AData: TStream; AIndex: TGenericIndex; AX, AY: Word); overload;
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constructor Create(AData: TStream; AIndex: TGenericIndex); overload;
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destructor Destroy; override;
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function Clone: TSeperatedStaticBlock; override;
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function GetSize: Integer; override;
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protected
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procedure RefreshList;
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public
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Cells: array[0..63] of TList;
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end;
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implementation
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{ TStaticItem }
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constructor TStaticItem.Create(AOwner: TWorldBlock; AData: TStream; ABlockX, ABlockY: Word);
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var
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iX, iY: Byte;
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begin
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inherited Create(AOwner);
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if assigned(AData) then
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begin
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AData.Read(FTileID, SizeOf(SmallInt));
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AData.Read(iX, SizeOf(Byte));
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AData.Read(iY, SizeOf(Byte));
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AData.Read(FZ, SizeOf(ShortInt));
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AData.Read(FHue, SizeOf(SmallInt));
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FX := ABlockX * 8 + iX;
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FY := ABlockY * 8 + iY;
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end;
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InitOriginalState;
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end;
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constructor TStaticItem.Create(AOwner: TWorldBlock; AData: TStream);
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begin
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Create(AOwner, AData, 0, 0);
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end;
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function TStaticItem.Clone: TStaticItem;
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begin
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Result := TStaticItem.Create(nil, nil);
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Result.FTileID := FTileID;
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Result.FX := FX;
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Result.FY := FY;
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Result.FZ := FZ;
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Result.FHue := FHue;
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end;
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function TStaticItem.GetIdentifier: Integer;
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begin
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Result := 0 or (((FX mod 8) shl 28) and $F0000000) or (((FY mod 8) shl 24) and $0F000000) or ((Byte(FZ) shl 16) and $00FF0000) or (Word(FTileID) and $0000FFFF);
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end;
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procedure TStaticItem.Write(AData: TStream);
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var
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iX, iY: Byte;
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begin
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iX := FX mod 8;
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iY := FY mod 8;
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AData.Write(FTileID, SizeOf(SmallInt));
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AData.Write(iX, SizeOf(Byte));
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AData.Write(iY, SizeOf(Byte));
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AData.Write(FZ, SizeOf(ShortInt));
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AData.Write(FHue, SizeOf(SmallInt));
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end;
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function TStaticItem.GetSize: Integer;
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begin
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Result := 7;
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end;
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function TStaticItem.HasChanged: Boolean;
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begin
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Result := (FHue <> FOrgHue) or inherited HasChanged;
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end;
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procedure TStaticItem.InitOriginalState;
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begin
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FOrgHue := FHue;
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inherited InitOriginalState;
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end;
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procedure TStaticItem.SetHue(AHue: Word);
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begin
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FHue := AHue;
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DoChanged;
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end;
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{ TStaticBlock }
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constructor TStaticBlock.Create(AData: TStream; AIndex: TGenericIndex; AX, AY: Word);
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var
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i: Integer;
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block: TMemoryStream;
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begin
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inherited Create;
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FX := AX;
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FY := AY;
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FItems := TList.Create;
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if assigned(AData) and (AIndex.Lookup > 0) and (AIndex.Size > 0) then
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begin
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AData.Position := AIndex.Lookup;
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block := TMemoryStream.Create;
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block.CopyFrom(AData, AIndex.Size);
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block.Position := 0;
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for i := 1 to (AIndex.Size div 7) do
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FItems.Add(TStaticItem.Create(Self, block, AX, AY));
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block.Free;
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end;
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end;
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constructor TStaticBlock.Create(AData: TStream; AIndex: TGenericIndex);
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begin
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Create(AData, AIndex, 0, 0);
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end;
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destructor TStaticBlock.Destroy;
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var
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i: Integer;
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begin
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if Assigned(FItems) then
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begin
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for i := 0 to FItems.Count - 1 do
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if Assigned(FItems[i]) then
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begin
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TStaticItem(FItems[i]).Free;
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FItems[i] := nil;
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end;
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FItems.Free;
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FItems := nil;
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end;
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inherited;
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end;
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function TStaticBlock.Clone: TStaticBlock;
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var
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i: Integer;
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begin
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Result := TStaticBlock.Create(nil, nil, FX, FY);
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for i := 0 to FItems.Count - 1 do
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Result.FItems.Add(TStaticItem(FItems.Items[i]).Clone);
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end;
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function TStaticBlock.GetSize: Integer;
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begin
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Result := FItems.Count * 7;
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end;
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procedure TStaticBlock.Write(AData: TStream);
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var
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i: Integer;
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begin
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for i := 0 to FItems.Count - 1 do
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TStaticItem(FItems[i]).Write(AData);
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end;
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procedure TStaticBlock.ReverseWrite(AData: TStream);
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var
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i: Integer;
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begin
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for i := FItems.Count - 1 downto 0 do
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begin
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TStaticItem(FItems[i]).Write(AData);
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end;
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end;
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procedure TStaticBlock.Sort;
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var
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iMin, iMax: Integer;
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procedure sift;
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var
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i, j: integer;
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begin
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i := iMin;
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j := 2 * i;
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FItems[0] := FItems[i];
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while j <= iMax do
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begin
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if j < iMax then
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if TStaticItem(FItems[j]).GetIdentifier < TStaticItem(FItems[j + 1]).GetIdentifier then inc(j);
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if TStaticItem(FItems[0]).GetIdentifier >= TStaticItem(FItems[j]).GetIdentifier then break;
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FItems[i] := FItems[j];
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i := j;
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j := 2 * i;
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end;
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FItems[i] := FItems[0];
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end;
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begin
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if FItems.Count > 0 then
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begin
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iMax := FItems.Count;
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iMin := iMax div 2 + 1;
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FItems.Insert(0, nil);
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while iMin > 1 do
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begin
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dec(iMin);
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sift;
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end;
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while iMax > 1 do
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begin
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FItems[0] := FItems[iMin];
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FItems[iMin] := FItems[iMax];
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FItems[iMax] := FItems[0];
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dec(iMax);
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sift;
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end;
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FItems.Delete(0);
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end;
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end;
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{ TSeperatedStaticBlock }
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constructor TSeperatedStaticBlock.Create(AData: TStream; AIndex: TGenericIndex; AX, AY: Word);
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var
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i: Integer;
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item: TStaticItem;
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block: TMemoryStream;
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begin
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inherited Create;
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FItems := TList.Create;
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FX := AX;
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FY := AY;
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for i := 0 to 63 do
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Cells[i] := TList.Create;
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if (AData <> nil) and (AIndex.Lookup > 0) and (AIndex.Size > 0) then
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begin
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AData.Position := AIndex.Lookup;
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block := TMemoryStream.Create;
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block.CopyFrom(AData, AIndex.Size);
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block.Position := 0;
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for i := 1 to (AIndex.Size div 7) do
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begin
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item := TStaticItem.Create(Self, block, AX, AY);
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Cells[(item.Y mod 8) * 8 + (item.X mod 8)].Add(item);
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end;
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block.Free;
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end;
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end;
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constructor TSeperatedStaticBlock.Create(AData: TStream; AIndex: TGenericIndex);
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begin
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Create(AData, AIndex, 0, 0);
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end;
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destructor TSeperatedStaticBlock.Destroy;
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var
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i, j: Integer;
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begin
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if Assigned(FItems) then FreeAndNil(FItems);
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for i := 0 to 63 do
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begin
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if Cells[i] <> nil then
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begin
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for j := 0 to Cells[i].Count - 1 do
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begin
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if Cells[i][j] <> nil then
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begin
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TStaticItem(Cells[i][j]).Free;
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Cells[i][j] := nil;
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end;
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end;
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Cells[i].Free;
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Cells[i] := nil;
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end;
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end;
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inherited Destroy;
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end;
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function TSeperatedStaticBlock.Clone: TSeperatedStaticBlock;
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var
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i, j: Integer;
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begin
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Result := TSeperatedStaticBlock.Create(nil, nil, FX, FY);
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for i := 0 to 63 do
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for j := 0 to Cells[i].Count - 1 do
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Result.Cells[i].Add(TSeperatedStaticBlock(Cells[i].Items[j]).Clone);
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end;
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function TSeperatedStaticBlock.GetSize: Integer;
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begin
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RefreshList;
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Result := inherited GetSize;
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end;
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procedure TSeperatedStaticBlock.RefreshList;
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var
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i, j: Integer;
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begin
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FItems.Clear;
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for i := 0 to 63 do
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begin
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if Cells[i] <> nil then
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begin
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for j := 0 to Cells[i].Count - 1 do
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if Cells[i].Items[j] <> nil then
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FItems.Add(Cells[i].Items[j]);
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end;
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end;
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Sort;
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end;
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end.
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