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Styles.Base.pas
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Styles.Base.pas
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unit Styles.Base;
{$include lem_directives.inc}
// The abstract style system. descendants in Styles.Dos, Styles.User
interface
uses
Classes, SysUtils, Contnrs, Generics.Collections, Character,
GR32,
Base.Utils, Base.Bitmaps,
Dos.Consts, Dos.Compression, Dos.Bitmaps, Dos.Structures,
Meta.Structures,
Level.Base, Level.Hash, Level.Loader,
Prog.Types, Prog.Base, Prog.Data;
type
TStyle = class;
TLemmingAnimationSet = class;
TGraphicSet = class;
TLevelSystem = class;
TSection = class;
TLevelLoadingInformation = class;
TLevelSystemClass = class of TLevelSystem;
TSectionList = class(TFastObjectList<TSection>);
TLevelLoadingInformationList = class(TFastObjectList<TLevelLoadingInformation>);
TStyle = class abstract
private
fIsByFactory: Boolean;
function GetRootPath: string; inline;
strict protected
fMainDatFileName : string; // main.dat
fLemmingAnimationSet : TLemmingAnimationSet;
fStyleInformation : Consts.TStyleInformation;
fLevelSystem : TLevelSystem;
fMechanics : TMechanics;
fName : string;
fDef : TStyleDef;
fIsPooledByFactory : Boolean;
protected
function GetLevelSystemClass: TLevelSystemClass; virtual; abstract;
function GetMechanics: TMechanics; virtual; abstract;
function GetMainDatFileName: string; virtual; // default 'main.dat'
public
constructor Create(const aName: string); virtual;
procedure BeforeDestruction; override; final;
destructor Destroy; override;
procedure AfterConstruction; override; final;
property StyleInformation: Consts.TStyleInformation read fStyleInformation;
property MainDatFileName: string read fMainDatFileName; // default 'main.dat'
property LemmingAnimationSet: TLemmingAnimationSet read fLemmingAnimationSet;
property LevelSystem: TLevelSystem read fLevelSystem;
property Mechanics: TMechanics read fMechanics;
property Name: string read fName;
property RootPath: string read GetRootPath;
property Def: TStyleDef read fDef;
property IsPooledByFactory: Boolean read fIsByFactory write fIsPooledByFactory;
end;
TLemmingAnimationSet = class sealed
public
const
LTR = False;
RTL = True;
const
{-------------------------------------------------------------------------------
dos animations ordered by their appearance in main.dat
the constants below show the exact order
-------------------------------------------------------------------------------}
WALKING = 0;
JUMPING = 1;
WALKING_RTL = 2;
JUMPING_RTL = 3;
DIGGING = 4;
CLIMBING = 5;
CLIMBING_RTL = 6;
DROWNING = 7;
HOISTING = 8;
HOISTING_RTL = 9;
BRICKLAYING = 10;
BRICKLAYING_RTL = 11;
BASHING = 12;
BASHING_RTL = 13;
MINING = 14;
MINING_RTL = 15;
FALLING = 16;
FALLING_RTL = 17;
UMBRELLA = 18;
UMBRELLA_RTL = 19;
SPLATTING = 20;
EXITING = 21;
FRIED = 22;
BLOCKING = 23;
SHRUGGING = 24;
SHRUGGING_RTL = 25;
OHNOING = 26;
EXPLOSION = 27;
AnimationIndices : array[TLemmingAction, LTR..RTL] of Integer = (
(0, 0),
(WALKING, WALKING_RTL), // baWalk,
(JUMPING, JUMPING_RTL), // baJumping,
(DIGGING, DIGGING), // baDigging,
(CLIMBING, CLIMBING_RTL), // baClimbing,
(DROWNING, DROWNING), // baDrowning,
(HOISTING, HOISTING_RTL), // baHoisting,
(BRICKLAYING, BRICKLAYING_RTL), // baBricklaying,
(BASHING, BASHING_RTL), // baBashing,
(MINING, MINING_RTL), // baMining,
(FALLING, FALLING_RTL), // baFalling,
(UMBRELLA, UMBRELLA_RTL), // baUmbrella,
(SPLATTING, SPLATTING), // baSplatting,
(EXITING, EXITING), // baExiting,
(FRIED, FRIED), // baFried,
(BLOCKING, BLOCKING), // baBlocking,
(SHRUGGING, SHRUGGING_RTL), // baShrugging,
(OHNOING, OHNOING), // baOhnoing,
(EXPLOSION, EXPLOSION) // baExploding
);
strict private
fStyle : TStyle; // owner style
// metadata
fMetaLemmingAnimationList : TMetaLemmingAnimationList;
fMetaExtraAnimationList : TMetaExtraAnimationList;
// data
fLemmingBitmaps : TBitmaps;
fExtraBitmaps : TBitmaps;
fAnimationPalette : TArrayOfColor32;
fExplosionMaskBitmap : TBitmap32; // ref
fBashMasksBitmap : TBitmap32; // ref
fBashMasksRTLBitmap : TBitmap32; // ref
fMineMasksBitmap : TBitmap32; // ref
fMineMasksRTLBitmap : TBitmap32; // ref
fCountDownDigitsBitmap : TBitmap32; // ref
procedure InitMetadata;
public
constructor Create(aStyle: TStyle);
destructor Destroy; override;
procedure Load;
property Style: TStyle read fStyle;
property MetaLemmingAnimationList: TMetaLemmingAnimationList read fMetaLemmingAnimationList;
property MetaExtraAnimationList: TMetaExtraAnimationList read fMetaExtraAnimationList;
property LemmingBitmaps: TBitmaps read fLemmingBitmaps;
// easy references, these point to the MaskExtraAnimationList
property ExplosionMaskBitmap : TBitmap32 read fExplosionMaskBitmap;
property BashMasksBitmap : TBitmap32 read fBashMasksBitmap;
property BashMasksRTLBitmap : TBitmap32 read fBashMasksRTLBitmap;
property MineMasksBitmap : TBitmap32 read fMineMasksBitmap;
property MineMasksRTLBitmap : TBitmap32 read fMineMasksRTLBitmap;
property CountDownDigitsBitmap : TBitmap32 read fCountDownDigitsBitmap;
property AnimationPalette : TArrayOfColor32 read fAnimationPalette write fAnimationPalette;
end;
TGraphicSet = class sealed
strict private
fStyle : TStyle; // ref to style
// metadata
fGraphicSetId : Integer; // number identifier
fGraphicSetIdExt : Integer; // extended graphics identifier (vgaspec)
fMetaDataFile : string; // ground?.dat
fGraphicFile : string; // vgagr?.dat
fGraphicExtFile : string; // vgaspec?.dat
fMetaObjectList : TMetaObjectList;
fMetaTerrainList : TMetaTerrainList;
// data
fTerrainBitmaps : TBitmaps;
fObjectBitmaps : TBitmaps;
fSpecialBitmap : TBitmap32;
fPaletteCustom : TArrayOfColor32; // 8
fPaletteStandard : TArrayOfColor32; // 8
fPalettePreview : TArrayOfColor32; // 8
fPalette : TArrayOfColor32; // 16
fBrickColor : TColor32;
procedure Clear;
procedure LoadMetaData;
procedure LoadData;
public
constructor Create(aStyle: TStyle);
destructor Destroy; override;
procedure Load(aId, aIdExt: Integer);
// properties
property Style: TStyle read fStyle;
property GraphicSetId: Integer read fGraphicSetId;
property GraphicSetIdExt: Integer read fGraphicSetIdExt;
property MetaTerrainList: TMetaTerrainList read fMetaTerrainList;
property MetaObjectList: TMetaObjectList read fMetaObjectList;
property TerrainBitmaps: TBitmaps read fTerrainBitmaps;
property SpecialBitmap: TBitmap32 read fSpecialBitmap;
property ObjectBitmaps: TBitmaps read fObjectBitmaps;
property PaletteCustom: TArrayOfColor32 read fPaletteCustom;
property PaletteStandard: TArrayOfColor32 read fPaletteStandard;
property PalettePreview: TArrayOfColor32 read fPalettePreview;
property Palette: TArrayOfColor32 read fPalette;
property BrickColor: TColor32 read fBrickColor;
end;
TLevelSystem = class
strict private
fStyle: TStyle; // owner
fSectionList: TSectionList;
private
procedure DoAddSection(aSection: TSection); // internal
strict protected
fOddTableFileName : string;
protected
procedure GetFileNamesForGraphicSet(aGraphicSetId, aGraphicSetIdExt: Integer; out aMetaDataFileName, aGraphicsFileName, aSpecialGraphicsFileName: string); virtual;
procedure DoInitializeLevelSystem; virtual;
public
constructor Create(aStyle: TStyle); virtual;
destructor Destroy; override;
procedure AfterConstruction; override; final;
// default graphics filenames
class procedure GetDefaultNamesForGraphics(aGraphicSetId, aGraphicSetIdExt: Integer; out aMetaDataFileName, aGraphicsFileName, aSpecialGraphicsFileName: string); static;
// level finding
function FirstLevelOrDefault: TLevelLoadingInformation; inline;
function FirstLevel: TLevelLoadingInformation; inline;
function LastLevel: TLevelLoadingInformation; inline;
function FindLevelByIndex(const aSectionIndex, aLevelIndex: Integer): TLevelLoadingInformation;
function FindLevelBySectionNameAndNumber(const aCode: string): TLevelLoadingInformation;
function SelectRandomLevel: TLevelLoadingInformation;
// properties
property OddTableFileName: string read fOddTableFileName;
property Style: TStyle read fStyle;
property SectionList: TSectionList read fSectionList;
end;
TSection = class sealed
private
fLevelSystem: TLevelSystem; // owner
fSectionIndex: Integer;
fSectionName: string;
fPrev: TSection;
fNext: TSection;
fLevelLoadingInformationList: TLevelLoadingInformationList;
function GetStyle: TStyle; inline;
procedure DoAddLevelInfo(aLevelInfo: TLevelLoadingInformation);
public
constructor Create(aLevelSystem: TLevelSystem);
destructor Destroy; override;
property Style: TStyle read GetStyle;
property SectionIndex: Integer read fSectionIndex;
property SectionName: string read fSectionName write fSectionName;
property LevelSystem: TLevelSystem read fLevelSystem;
property LevelLoadingInformationList: TLevelLoadingInformationList read fLevelLoadingInformationList;
property Prev: TSection read fPrev;
property Next: TSection read fNext;
end;
TLevelLoadingInformation = class sealed
private
fSection : TSection;
fLevelIndex : Integer;
fSourceFileName : string; // loading info
fSectionIndexInSourceFile : Integer; // loading info
fUseOddTable : Boolean; // loading info
fOddTableIndex : Integer; // loading info
fIsRawLVLFile : Boolean; // loading info
fIsLemminiFile : Boolean; // loading info
fPrev : TLevelLoadingInformation;
fNext : TLevelLoadingInformation;
fCachedLVL : PLVLRec;
fCachedHash : UInt64;
fCachedLevelCode : string;
fMusicFileName : string;
fMusicStreamType : TMusicStreamType;
function GetStyle: TStyle; inline;
function GetLevelSystem: TLevelSystem; inline;
function GetSectionIndex: Integer; inline;
function GetIsCached: Boolean; inline;
procedure CacheLVL; inline;
procedure SetMusicFilename(const s: string);
public
constructor Create(aSection: TSection);
destructor Destroy; override;
procedure LoadLevel(aLevel: TLevel);
function GetLevelHash: UInt64;
function GetLevelCode: string;
function GetRawLVL: TLVLRec;
function GetRawLVLTitle: TLVLTitle;
function GetLevelTitle(trimmed: Boolean = True): string;
// properties
property Style: TStyle read GetStyle;
property LevelSystem: TLevelSystem read GetLevelSystem;
property CachedLVL: PLVLRec read fCachedLVL;
property Section: TSection read fSection;
property SectionIndex: Integer read GetSectionIndex;
property LevelIndex: Integer read fLevelIndex;
property SourceFileName: string read fSourceFileName write fSourceFileName; // loading info
property SectionIndexInSourceFile: Integer read fSectionIndexInSourceFile write fSectionIndexInSourceFile; // loading info
property UseOddTable: Boolean read fUseOddTable write fUseOddTable; // loading info
property OddTableIndex: Integer read fOddTableIndex write fOddTableIndex; // loading info
property IsRawLVLFile: Boolean read fIsRawLVLFile write fIsRawLVLFile; // loading info
property IsLemminiFile: Boolean read fIsLemminiFile write fIsLemminiFile; // loading info
property MusicFileName: string read fMusicFileName write SetMusicFileName; // loading info
property MusicStreamType: TMusicStreamType read fMusicStreamType; // loading info
property Prev: TLevelLoadingInformation read fPrev;
property Next: TLevelLoadingInformation read fNext;
property IsCached: Boolean read GetIsCached;
end;
type
TLevelFactory = class sealed
private
class procedure LoadLVL(aInfo: TLevelLoadingInformation; var LVL: TLVLRec); static;
end;
implementation
{ TStyle }
procedure TStyle.BeforeDestruction;
begin
if fIsPooledByFactory then
Throw('Pooled style destruction error', 'BeforeDestruction')
end;
constructor TStyle.Create(const aName: string);
var
info: Consts.TStyleInformation;
begin
if GetLevelSystemClass = nil then
Throw('TStyle.Create (' + ClassName + '): undefined levelsystemclass');
// name and def first
fName := aName;
// set the styledef
for info in Consts.StyleInformationlist do
if info.Name = fName then begin
fStyleInformation := info;
fDef := info.StyleDef;
Break;
end;
end;
procedure TStyle.AfterConstruction;
begin
inherited AfterConstruction;
fMainDatFileName := GetMainDatFileName;
fMechanics := GetMechanics;
fLemmingAnimationSet := TLemmingAnimationSet.Create(Self);
fLevelSystem := GetLevelSystemClass.Create(Self);
end;
destructor TStyle.Destroy;
begin
fLevelSystem.Free;
fLemmingAnimationSet.Free;
inherited;
end;
function TStyle.GetMainDatFileName: string;
begin
Result := 'main.dat';
end;
function TStyle.GetRootPath: string;
begin
Result := Consts.PathToStyle[fName];
end;
{ TLemmingAnimationSet }
constructor TLemmingAnimationSet.Create(aStyle: TStyle);
begin
fStyle := aStyle;
fMetaLemmingAnimationList := TMetaLemmingAnimationList.Create;
fMetaExtraAnimationList := TMetaExtraAnimationList.Create;
fLemmingBitmaps := TBitmaps.Create;
fExtraBitmaps := TBitmaps.Create;
InitMetaData;
end;
destructor TLemmingAnimationSet.Destroy;
begin
fMetaLemmingAnimationList.Free;
fMetaExtraAnimationList.Free;
fLemmingBitmaps.Free;
fExtraBitmaps.Free;
inherited;
end;
procedure TLemmingAnimationSet.InitMetadata;
{-------------------------------------------------------------------------------
We dont have to read. It's fixed in this order in the main.dat.
foot positions from ccexpore's emails, see lemming_mechanics pseudo code
o make lemming animations
o make mask animations metadata
-------------------------------------------------------------------------------}
procedure Lem(aImageLocation: Integer; const aDescription: string; aFrameCount, aWidth, aHeight, aBPP, aFootX, aFootY: Integer; aAnimType: TLemmingAnimationType);
var
A: TMetaLemmingAnimation;
begin
A := TMetaLemmingAnimation.Create(aDescription, aFrameCount, aWidth, aHeight, aBPP, aImageLocation, aAnimType, aFootX, aFootY);
fMetaLemmingAnimationList.Add(A);
end;
procedure Msk(aImageLocation: Integer; const aDescription: string; aFrameCount, aWidth, aHeight, aBPP: Integer);
var
M: TMetaExtraAnimation;
begin
M := TMetaExtraAnimation.Create(aDescription, aFrameCount, aWidth, aHeight, aBPP, aImageLocation);
fMetaExtraAnimationList.Add(M);
end;
begin
// place description F W H BPP FX FY animationtype
Lem($0000, 'Walking' , 8, 16, 10, 2, 8, 10, TLemmingAnimationType.Loop); // 0
Lem($0140, 'Jumping' , 1, 16, 10, 2, 8, 10, TLemmingAnimationType.Once);
Lem($0168, 'Walking (rtl)' , 8, 16, 10, 2, 8, 10, TLemmingAnimationType.Loop);
Lem($02A8, 'Jumping (rtl)' , 1, 16, 10, 2, 8, 10, TLemmingAnimationType.Once);
Lem($02D0, 'Digging' , 16, 16, 14, 3, 8, 12, TLemmingAnimationType.Loop);
Lem($0810, 'Climbing' , 8, 16, 12, 2, 8, 12, TLemmingAnimationType.Loop);
Lem($0990, 'Climbing (rtl)' , 8, 16, 12, 2, 8, 12, TLemmingAnimationType.Loop);
Lem($0B10, 'Drowning' , 16, 16, 10, 2, 8, 10, TLemmingAnimationType.Once);
Lem($0D90, 'Hoisting' , 8, 16, 12, 2, 8, 12, TLemmingAnimationType.Once);
Lem($0F10, 'Hoisting (rtl)' , 8, 16, 12, 2, 8, 12, TLemmingAnimationType.Once);
Lem($1090, 'Building' , 16, 16, 13, 3, 8, 13, TLemmingAnimationType.Loop); // 10
Lem($1570, 'Building (rtl)' , 16, 16, 13, 3, 8, 13, TLemmingAnimationType.Loop);
Lem($1A50, 'Bashing' , 32, 16, 10, 3, 8, 10, TLemmingAnimationType.Loop);
Lem($21D0, 'Bashing (rtl)' , 32, 16, 10, 3, 8, 10, TLemmingAnimationType.Loop);
Lem($2950, 'Mining' , 24, 16, 13, 3, 8, 13, TLemmingAnimationType.Loop);
Lem($30A0, 'Mining (rtl)' , 24, 16, 13, 3, 8, 13, TLemmingAnimationType.Loop);
Lem($37F0, 'Falling' , 4, 16, 10, 2, 8, 10, TLemmingAnimationType.Loop);
Lem($3890, 'Falling (rtl)' , 4, 16, 10, 2, 8, 10, TLemmingAnimationType.Loop);
Lem($3930, 'Umbrella' , 8, 16, 16, 3, 8, 16, TLemmingAnimationType.Loop);
Lem($3C30, 'Umbrella (rtl)' , 8, 16, 16, 3, 8, 16, TLemmingAnimationType.Loop);
Lem($3F30, 'Splatting' , 16, 16, 10, 2, 8, 10, TLemmingAnimationType.Once); // 20
Lem($41B0, 'Exiting' , 8, 16, 13, 2, 8, 13, TLemmingAnimationType.Once);
Lem($4350, 'Vaporizing' , 14, 16, 14, 4, 8, 14, TLemmingAnimationType.Once);
Lem($4970, 'Blocking' , 16, 16, 10, 2, 8, 10, TLemmingAnimationType.Loop);
Lem($4BF0, 'Shrugging' , 8, 16, 10, 2, 8, 10, TLemmingAnimationType.Once);
Lem($4D30, 'Shrugging (rtl)' , 8, 16, 10, 2, 8, 10, TLemmingAnimationType.Once);
Lem($4E70, 'Oh-No-ing' , 16, 16, 10, 2, 8, 10, TLemmingAnimationType.Once);
Lem($50F0, 'Exploding' , 1, 32, 32, 3, 16, 25, TLemmingAnimationType.Once); // 27
// place description F W H BPP
Msk($0000, 'Bashmasks' , 4, 16, 10, 1);
Msk($0050, 'Bashmasks (rtl)' , 4, 16, 10, 1);
Msk($00A0, 'Minemasks' , 2, 16, 13, 1);
Msk($00D4, 'Minemasks (rtl)' , 2, 16, 13, 1);
Msk($0108, 'Explosionmask' , 1, 16, 22, 1);
Msk($0154, 'Countdown digits' , 5, 8, 8, 1); // we only take the digits 5 downto zero
end;
procedure TLemmingAnimationSet.Load;
var
Fn: string;
Mem: TMemoryStream;
Bmp: TBitmap32;
TempBitmap: TBitmap32;
Sections: TDosDatSectionList;
Decompressor: TDosDatDecompressor;
iFrame: Integer;
MLA: TMetaLemmingAnimation;
MA: TMetaExtraAnimation;
Y: Integer;
Pal: TArrayOfColor32;
LocalStream: TStream;
begin
fLemmingBitmaps.Clear;
fExtraBitmaps.Clear;
// fried and or vaporizing have high color indices
Assert(Length(AnimationPalette) >= 16);
Pal := Copy(fAnimationPalette);
Fn := Style.MainDatFileName;
TempBitmap := TBitmap32.Create;
Sections := TDosDatSectionList.Create;
Decompressor := TDosDatDecompressor.Create;
try
LocalStream := TData.CreateDataStream(Style.Name, Fn, TDataType.LemmingData);
try
Decompressor.LoadSectionList(LocalStream, Sections, False);
finally
LocalStream.Free;
end;
Decompressor.DecompressSection(Sections[0].CompressedData, Sections[0].DecompressedData);
Mem := Sections[0].DecompressedData;
for MLA in fMetaLemmingAnimationList do begin
Bmp := TBitmap32.Create;
fLemmingBitmaps.Add(Bmp);
TDosPlanarBitmap.LoadAnimationFromStream(Mem, Bmp, MLA.ImageLocation, MLA.Width, MLA.Height, MLA.FrameCount, MLA.BitsPerPixel, Pal);
//bmp.ReplaceColor(Color32(64,64,224), cllime32);
end;
Pal[0] := 0;
Pal[1] := clMask32; // the ugly mask pink.
Decompressor.DecompressSection(Sections[1].CompressedData, Sections[1].DecompressedData);
Mem := Sections[1].DecompressedData;
for MA in fMetaExtraAnimationList do begin
Y := 0;
Bmp := TBitmap32.Create;
fExtraBitmaps.Add(Bmp);
// also: here the direct LoadAnimationFromStream does not work correctly. there are masks inbetween i think.
Bmp.Width := MA.Width;
Bmp.Height := MA.FrameCount * MA.Height;
Bmp.Clear(0);
Mem.Seek(MA.ImageLocation, soFromBeginning);
for iFrame := 0 to MA.FrameCount - 1 do
begin
TDosPlanarBitmap.LoadFromStream(Mem, TempBitmap, -1, MA.Width, MA.Height, MA.BitsPerPixel, Pal);
TempBitmap.DrawTo(Bmp, 0, Y);
Inc(Y, MA.Height);
end;
end;
// refer the "easy access" bitmaps
fBashMasksBitmap := fExtraBitmaps[0];
fBashMasksRTLBitmap := fExtraBitmaps[1];
fMineMasksBitmap := fExtraBitmaps[2];
fMineMasksRTLBitmap := fExtraBitmaps[3];
fExplosionMaskBitmap := fExtraBitmaps[4];
fCountDownDigitsBitmap := fExtraBitmaps[5];
fCountDownDigitsBitmap.ReplaceColor(clMask32, Pal[3]);
finally
Sections.Free;
Decompressor.Free;
TempBitmap.Free;
end;
end;
{ TGraphicSet }
constructor TGraphicSet.Create(aStyle: TStyle);
begin
fStyle := aStyle;
fGraphicSetId := -1;
fGraphicSetIdExt := -1;
fMetaObjectList := TMetaObjectList.Create;
fMetaTerrainList := TMetaTerrainList.Create;
fTerrainBitmaps := TBitmaps.Create;
fObjectBitmaps := TBitmaps.Create;
fSpecialBitmap := TBitmap32.Create;
end;
destructor TGraphicSet.Destroy;
begin
fMetaObjectList.Free;
fMetaTerrainList.Free;
fTerrainBitmaps.Free;
fObjectBitmaps.Free;
fSpecialBitmap.Free;
inherited;
end;
procedure TGraphicSet.Clear;
begin
fMetaObjectList.Clear;
fMetaTerrainList.Clear;
fTerrainBitmaps.Clear;
fObjectBitmaps.Clear;
fSpecialBitmap.SetSize(0, 0);
SetLength(fPaletteCustom, 0);
SetLength(fPaletteStandard, 0);
SetLength(fPalettePreview, 0);
SetLength(fPalette, 0);
fBrickColor := 0;
fMetaDataFile := '';
fGraphicFile := '';
fGraphicExtFile := '';
end;
procedure TGraphicSet.LoadMetaData;
// Read dos metadata and translate to lemmix classes
procedure LoadDosMetaData(var aData: TDosGroundRec);
var
D: TStream;
begin
D := TData.CreateDataStream(Style.Name, fMetaDataFile, TDataType.LevelGraphics);
try
D.ReadBuffer(aData, SizeOf(aData));
finally
D.Free;
end;
end;
function LoadSpecPalette: TDosVGAPalette8;
var
SpecBmp: TVgaSpecBitmap;
DataStream: TStream;
begin
SpecBmp := TVgaSpecBitmap.Create;
DataStream := TData.CreateDataStream(Style.Name, fGraphicExtFile, TDataType.LevelSpecialGraphics);
try
SpecBmp.LoadPaletteFromStream(DataStream, Result);
finally
SpecBmp.Free;
DataStream.Free;
end;
end;
procedure AssemblePalette;
// Concatenate the fixed palette and the loaded custompalette.
// Then copy the first customcolor to the last fixed color (bridges, minimap).
// For special graphics we use a hardcoded color for now.
var
i: Integer;
begin
SetLength(fPalette, 16);
for i := 0 to 7 do
fPalette[i] := DosPaletteEntryToColor32(DosInlevelPalettes[Consts.ChristmasPalette][i]);
for i := 8 to 15 do
fPalette[i] := fPaletteCustom[i - 8];
if fGraphicSetIdExt > 0 then
fPalette[8] := Color32(124, 124, 0, 0);
fPalette[7] := fPalette[8];
fBrickColor := fPalette[7];
end;
var
DosData: TDosGroundRec;
O: TDosMetaObject;
MO: TMetaObject;
T: TDosMetaTerrain;
MT: TMetaTerrain;
begin
LoadDosMetaData(DosData);
// convert palettes
DosVgaPalette8ToLemmixPalette(DosData.VGA_PaletteCustom, fPaletteCustom);
DosVgaPalette8ToLemmixPalette(DosData.VGA_PaletteStandard, fPaletteStandard);
DosVgaPalette8ToLemmixPalette(DosData.VGA_PalettePreview, fPalettePreview);
// if special graphic then overwrite the custom palette
if fGraphicSetIdExt > 0 then
DosVgaPalette8ToLemmixPalette(LoadSpecPalette, fPaletteCustom);
// make 16 color palette
AssemblePalette;
// meta objects
for O in DosData.ObjectInfoArray do begin
if O.oWidth = 0 then
Break; // the rest is empty
MO := TMetaObject.Create;
fMetaObjectList.Add(MO);
MO.AssignFromDos(O);
end;
// if extended graphic then no terrain
if fGraphicSetIdExt > 0 then
Exit;
// meta terrains
for T in DosData.TerrainInfoArray do begin
if T.tWidth = 0 then
Break; // the rest is empty
MT := TMetaTerrain.Create;
fMetaTerrainList.Add(MT);
MT.AssignFromDos(T);
end;
end;
procedure TGraphicSet.LoadData;
// read all terrain- and object bitmaps from dos file and translate to lemmix classes
var
DosSections: TDosDatSectionList;
Decompressor: TDosDatDecompressor;
MemStream: TMemoryStream;
DataStream: TStream;
MT: TMetaTerrain;
Bmp: TBitmap32;
SpecBmp: TVgaSpecBitmap;
MO: TMetaObject;
y: Integer;
Loc: Integer;
framebitmap: TBitmap32;
f: Integer;
begin
DosSections := TDosDatSectionList.Create;
try
// first decompress all data into the sectionlist
DataStream := nil;
Decompressor := TDosDatDecompressor.Create;
try
DataStream := TData.CreateDataStream(Style.Name, fGraphicFile, TDataType.LevelGraphics);
Decompressor.LoadSectionList(DataStream, DosSections, True);
finally
Decompressor.Free;
DataStream.Free;
end;
// get terrains from the first section if this is a normal graphicset (#0)
if fGraphicSetIdExt <= 0 then begin
MemStream := DosSections[0].DecompressedData;
for MT in fMetaTerrainList do begin
Bmp := TBitmap32.Create;
fTerrainBitmaps.Add(Bmp);
TDosPlanarBitmap.LoadFromStream(MemStream, Bmp, MT.ImageLocation, MT.Width, MT.Height, 4, fPalette);
end;
end
// or get the one terrainbitmap from the vgaspec
else begin
SpecBmp := TVgaSpecBitmap.Create;
try
DataStream := TData.CreateDataStream(Style.Name, fGraphicExtFile, TDataType.LevelSpecialGraphics);
try
SpecBmp.LoadFromStream(DataStream, fSpecialBitmap);
finally
DataStream.Free;
end;
finally
SpecBmp.Free;
end;
end;
// get objects from the second section (#1)
// loadanimationfromstream is not really impossible. maybe there are gaps, maybe some offset error
// get objects from the second section
MemStream := DosSections[1].DecompressedData;
for MO in fMetaObjectList do begin
Bmp := TBitmap32.Create;
Bmp.SetSize(MO.Width, MO.Height * MO.AnimationFrameCount);
fObjectBitmaps.Add(Bmp);
y := 0;
Loc := MO.AnimationFramesBaseLoc;
framebitmap := TBitmap32.Create;
// load all animation frames and glue together
for f := 0 to MO.AnimationFrameCount - 1 do begin
TDosPlanarBitmap.LoadFromStream(MemStream, FrameBitmap, Loc, MO.Width, MO.Height, 4, fPalette);
FrameBitmap.DrawTo(Bmp, 0, Y);
Inc(Y, MO.Height);
Inc(Loc, MO.AnimationFrameDataSize);
end;
framebitmap.Free;
end;
finally
DosSections.Free;
end;
end;
procedure TGraphicSet.Load(aId, aIdExt: Integer);
begin
Clear;
fGraphicSetId := aId;
fGraphicSetIdExt := aIdExt;
// get the filenames from which we load the metadata and data
Style.LevelSystem.GetFileNamesForGraphicSet(fGraphicSetId, fGraphicSetIdExt, {out} fMetaDataFile, {out} fGraphicFile, {out} fGraphicExtFile);
LoadMetaData;
LoadData;
end;
{ TLevelSystem }
constructor TLevelSystem.Create(aStyle: TStyle);
begin
fStyle := aStyle;
fSectionList := TSectionList.Create;
end;
procedure TLevelSystem.AfterConstruction;
var
section: TSection;
begin
inherited AfterConstruction;
DoInitializeLevelSystem; // let descendant implement sections and levels
// do a little validation on the descendants, who are responsibly for filling sections and levelinformation
if SectionList.IsEmpty then
Throw('No game sections implemented', 'AfterConstruction');
for section in Sectionlist do
if section.LevelLoadingInformationList.IsEmpty then
Throw('No levelinformation found in one of the sections', 'AfterConstruction');
end;
destructor TLevelSystem.Destroy;
begin
fSectionList.Free;
inherited;
end;
class procedure TLevelSystem.GetDefaultNamesForGraphics(aGraphicSetId, aGraphicSetIdExt: Integer; out aMetaDataFileName, aGraphicsFileName, aSpecialGraphicsFileName: string);
// all our 6 built in styles use the same naming convention
begin
aMetaDataFileName := 'ground' + aGraphicSetId.ToString + 'o.dat';
aGraphicsFileName := 'vgagr' + aGraphicSetId.ToString + '.dat';
aSpecialGraphicsFileName := '';
if aGraphicSetIdExt > 0 then
aSpecialGraphicsFileName := 'vgaspec' + pred(aGraphicSetIdExt).ToString + '.dat' // 1 maps to 0 for filename
end;
procedure TLevelSystem.GetFileNamesForGraphicSet(aGraphicSetId, aGraphicSetIdExt: Integer; out aMetaDataFileName, aGraphicsFileName, aSpecialGraphicsFileName: string);
// this is default and only overwritten for userstyle if needed
begin
GetDefaultNamesForGraphics(aGraphicSetId, aGraphicSetIdExt, aMetaDataFileName, aGraphicsFileName, aSpecialGraphicsFileName);
end;
procedure TLevelSystem.DoAddSection(aSection: TSection);
var
ix: Integer;
thePrev: TSection;
begin
aSection.fSectionIndex := fSectionList.Count;
fSectionList.Add(aSection);
ix := aSection.fSectionIndex;
if ix > 0 then begin
thePrev := fSectionList[ix - 1];
thePrev.fNext := aSection;
aSection.fPrev := thePrev;
end
else begin
thePrev := aSection.fPrev;
if Assigned(thePrev) and thePrev.fLevelLoadingInformationList.HasItems then begin
thePrev.fNext := aSection;
aSection.fPrev := thePrev;
end;
end;
end;
procedure TLevelSystem.DoInitializeLevelSystem;
begin
// must override
end;
function TLevelSystem.FirstLevelOrDefault: TLevelLoadingInformation;
begin
if SectionList.IsEmpty or SectionList.First.LevelLoadingInformationList.IsEmpty then
Exit(nil);
Result := SectionList.First.LevelLoadingInformationList.First;
end;
function TLevelSystem.FirstLevel: TLevelLoadingInformation;
begin
{$ifdef paranoid}
if SectionList.IsEmpty or SectionList.First.LevelLoadingInformationList.IsEmpty then
Throw('No levels in system');
{$endif}
Result := SectionList.First.LevelLoadingInformationList.First;
end;
function TLevelSystem.LastLevel: TLevelLoadingInformation;
begin
{$ifdef paranoid}
if SectionList.IsEmpty or SectionList.Last.LevelLoadingInformationList.IsEmpty then
Throw('No levels in system');
{$endif}
Result := SectionList.Last.LevelLoadingInformationList.Last;
end;
function TLevelSystem.FindLevelByIndex(const aSectionIndex, aLevelIndex: Integer): TLevelLoadingInformation;
begin
if (aSectionIndex < fSectionList.Count) and (aLevelIndex < fSectionList[aSectionIndex].LevelLoadingInformationList.Count) then
Result := fSectionList[aSectionIndex].LevelLoadingInformationList[aLevelIndex]
else
Result := nil;
end;
function TLevelSystem.FindLevelBySectionNameAndNumber(const aCode: string): TLevelLoadingInformation;
var
sectionstring: string;
levelstring: string;
foundSection: TSection;
charsFound, digitsFound: Boolean;
C: Char;
section: TSection;
ix: Integer;
begin
Result := nil;
foundSection := nil;
charsFound := False;
digitsFound := False;
if Length(aCode) < 2 then
Exit;
sectionstring := '';
levelstring := '';
for C in aCode do
if IsLetter(C) then begin
if digitsFound then
Exit;
charsFound := True;
sectionstring := sectionstring + C;
end
else if IsDigit(C) then begin
if not CharsFound then
Exit;
digitsFound := True;
levelstring := levelstring + C;
end;
for section in SectionList do
if SameText(section.SectionName, sectionstring) then begin
foundSection := section;
Break;
end;
if foundSection = nil then
Exit;
if not TryStrToInt(levelstring, ix) then
Exit;
if (ix < 1) or (ix > foundSection.LevelLoadingInformationList.Count) then
Exit;
Dec(ix);
Result := foundSection.LevelLoadingInformationList[ix];
end;
function TLevelSystem.SelectRandomLevel: TLevelLoadingInformation;
var
s, l: Integer;
begin
s := Random(fSectionList.Count);
l := Random(fSectionList[s].fLevelLoadingInformationList.Count);
Result := FindLevelByIndex(s, l);
end;
{ TSection }
constructor TSection.Create(aLevelSystem: TLevelSystem);
begin
fLevelSystem := aLevelSystem;
fLevelLoadingInformationList := TLevelLoadingInformationList.Create;
fLevelSystem.DoAddSection(Self);
end;
destructor TSection.Destroy;
begin
fLevelLoadingInformationList.Free;
inherited;
end;
procedure TSection.DoAddLevelInfo(aLevelInfo: TLevelLoadingInformation);
var
ix: Integer;
thePrev: TLevelLoadingInformation;
begin
aLevelInfo.fLevelIndex := fLevelLoadingInformationList.Count;
fLevelLoadingInformationList.Add(aLevelInfo);
ix := aLevelInfo.fLevelIndex;
if ix > 0 then begin
thePrev := fLevelLoadingInformationList[ix - 1];
thePrev.fNext := aLevelInfo;
aLevelInfo.fPrev := thePrev;
end
else begin
if Assigned(fPrev) and fPrev.LevelLoadingInformationList.HasItems then begin
thePrev := fPrev.LevelLoadingInformationList.Last;
thePrev.fNext := aLevelInfo;
aLevelInfo.fPrev := thePrev;
end;
end;
end;
function TSection.GetStyle: TStyle;
begin
Result := fLevelSystem.Style;
end;
{ TLevelLoadingInformation }
constructor TLevelLoadingInformation.Create(aSection: TSection);
begin
fSection := aSection;
fSection.DoAddLevelInfo(Self);
end;
destructor TLevelLoadingInformation.Destroy;
begin
if fCachedLVL <> nil then
Dispose(fCachedLVL);
inherited;
end;
procedure TLevelLoadingInformation.SetMusicFilename(const s: string);
var
ext: string;
begin
fMusicFileName := s;
ext := ToUpper(ExtractFileExt(s));
if ext = '.MOD' then
fMusicStreamType := TMusicStreamType.&MOD
else if ext = '.MP3' then
fMusicStreamType := TMusicStreamType.MP3
else