(*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2007 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

 *)

{$IFNDEF FPC}

WriteLn('Only Freepascal supported');

{$ENDIF}

program hwengine;

uses

	SDLh in 'SDLh.pas',

{$IFDEF IPHONE}

	gles11,

{$ELSE}

	GL,

{$ENDIF}

	uConsts in 'uConsts.pas',

	uGame in 'uGame.pas',

	uMisc in 'uMisc.pas',

	uStore in 'uStore.pas',

	uWorld in 'uWorld.pas',

	uIO in 'uIO.pas',

	uGears in 'uGears.pas',

	uVisualGears in 'uVisualGears.pas',

	uConsole in 'uConsole.pas',

	uKeys in 'uKeys.pas',

	uTeams in 'uTeams.pas',

	uSound in 'uSound.pas',

	uRandom in 'uRandom.pas',

	uAI in 'uAI.pas',

	uAIMisc in 'uAIMisc.pas',

	uAIAmmoTests in 'uAIAmmoTests.pas',

	uAIActions in 'uAIActions.pas',

	uCollisions in 'uCollisions.pas',

	uLand in 'uLand.pas',

	uLandTemplates in 'uLandTemplates.pas',

	uLandObjects in 'uLandObjects.pas',

	uLandGraphics in 'uLandGraphics.pas',

	uLocale in 'uLocale.pas',

	uAmmos in 'uAmmos.pas',

	uSHA in 'uSHA.pas',

	uFloat in 'uFloat.pas',

	uStats in 'uStats.pas',

	uChat in 'uChat.pas',

	uLandTexture in 'uLandTexture.pas';

{$INCLUDE options.inc}

// also: GSHandlers.inc

//       CCHandlers.inc

//       HHHandlers.inc

//       SinTable.inc

//       proto.inc

var recordFileName : shortstring = '';

procedure OnDestroy; forward;

////////////////////////////////

procedure DoTimer(Lag: LongInt);

var s: string;

begin

inc(RealTicks, Lag);

case GameState of

	gsLandGen: begin

			GenMap;

			GameState:= gsStart;

			end;

	gsStart: begin

			if HasBorder then DisableSomeWeapons;

			AddClouds;

			AssignHHCoords;

			AddMiscGears;

			StoreLoad;

            InitWorld;

			ResetKbd;

			SoundLoad;

			if GameType = gmtSave then

				begin

				isSEBackup:= isSoundEnabled;

				isSoundEnabled:= false

				end;

			FinishProgress;

			PlayMusic;

			GameState:= gsGame

			end;

	gsConfirm,

	gsGame: begin

			DrawWorld(Lag); // never place between ProcessKbd and DoGameTick - bugs due to /put cmd and isCursorVisible

			ProcessKbd;

			DoGameTick(Lag);

			ProcessVisualGears(Lag);

			end;

	gsChat: begin

			DrawWorld(Lag);

			DoGameTick(Lag);

			ProcessVisualGears(Lag);

			end;

	gsExit: begin

			OnDestroy;

			end;

	end;

SDL_GL_SwapBuffers();

if flagMakeCapture then

	begin

	flagMakeCapture:= false;

	s:= 'hw_' + cSeed + '_' + inttostr(GameTicks) + '.tga';

	WriteLnToConsole('Saving ' + s);

	MakeScreenshot(s);

//	SDL_SaveBMP_RW(SDLPrimSurface, SDL_RWFromFile(Str2PChar(s), 'wb'), 1)

	end;

end;

////////////////////

procedure OnDestroy;

begin

{$IFDEF DEBUGFILE}AddFileLog('Freeing resources...');{$ENDIF}

if isSoundEnabled then ReleaseSound;

StoreRelease;

FreeLand;

SendKB;

CloseIPC;

TTF_Quit;

SDL_Quit;

halt

end;

////////////////////////////////

procedure Resize(w, h: LongInt);

begin

cScreenWidth:= w;

cScreenHeight:= h;

if cFullScreen then

	ParseCommand('/fullscr 1', true)

else

	ParseCommand('/fullscr 0', true);

end;

///////////////////

procedure MainLoop;

var PrevTime,

    CurrTime: Longword;

    event: TSDL_Event;

begin

PrevTime:= SDL_GetTicks;

repeat

while SDL_PollEvent(@event) <> 0 do

	case event.type_ of

		SDL_KEYDOWN: if GameState = gsChat then KeyPressChat(event.key.keysym.unicode);

		SDL_ACTIVEEVENT: if (event.active.state and SDL_APPINPUTFOCUS) <> 0 then

				cHasFocus:= event.active.gain = 1;

		//SDL_VIDEORESIZE: Resize(max(event.resize.w, 600), max(event.resize.h, 450));

		SDL_QUITEV: isTerminated:= true

		end;

CurrTime:= SDL_GetTicks;

if PrevTime + cTimerInterval <= CurrTime then

   begin

   DoTimer(CurrTime - PrevTime);

   PrevTime:= CurrTime

   end else SDL_Delay(1);

IPCCheckSock

until isTerminated

end;

/////////////////////

procedure DisplayUsage;

begin

	WriteLn('Wrong argument format: correct configurations is');

	WriteLn();

	WriteLn('  hwengine <path to data folder> <path to replay file> [option]');

	WriteLn();

	WriteLn('where [option] must be specified either as');

	WriteLn(' --set-video [screen height] [screen width] [color dept]');

	WriteLn(' --set-audio [volume] [enable music] [enable sounds]');

	WriteLn(' --set-other [language file] [full screen] [show FPS]');

	WriteLn(' --set-multimedia [screen height] [screen width] [color dept] [volume] [enable music] [enable sounds] [language file] [full screen]');

	WriteLn(' --set-everything [screen height] [screen width] [color dept] [volume] [enable music] [enable sounds] [language file] [full screen] [show FPS] [alternate damage] [timer value] [reduced quality]');

	WriteLn();

	WriteLn('Read documentation online at http://www.hedgewars.org/node/1465 for more information');

	halt(1);

end;

////////////////////

procedure GetParams;

var

{$IFDEF DEBUGFILE}

    i: LongInt;

{$ENDIF}

    p: TPathType;

begin

{$IFDEF DEBUGFILE}

AddFileLog('Prefix: "' + PathPrefix +'"');

for i:= 0 to ParamCount do

    AddFileLog(inttostr(i) + ': ' + ParamStr(i));

{$ENDIF}

case ParamCount of

 16: begin

     val(ParamStr(2), cScreenWidth);

     val(ParamStr(3), cScreenHeight);

     cInitWidth:= cScreenWidth;

     cInitHeight:= cScreenHeight;

     cBitsStr:= ParamStr(4);

     val(cBitsStr, cBits);

     val(ParamStr(5), ipcPort);

     cFullScreen:= ParamStr(6) = '1';

     isSoundEnabled:= ParamStr(7) = '1';

     cLocaleFName:= ParamStr(8);

     val(ParamStr(9), cInitVolume);

     val(ParamStr(10), cTimerInterval);

     PathPrefix:= ParamStr(11);

     cShowFPS:= ParamStr(12) = '1';

     cAltDamage:= ParamStr(13) = '1';

     UserNick:= DecodeBase64(ParamStr(14));

     isMusicEnabled:= ParamStr(15) = '1';

     cReducedQuality:= ParamStr(16) = '1';

     for p:= Succ(Low(TPathType)) to High(TPathType) do

         if p <> ptMapCurrent then Pathz[p]:= PathPrefix + '/' + Pathz[p]

     end;

  3: begin

     val(ParamStr(2), ipcPort);

     GameType:= gmtLandPreview;

     if ParamStr(3) <> 'landpreview' then OutError(errmsgShouldntRun, true);

     end;

  2: begin

		PathPrefix:= ParamStr(1);

		recordFileName:= ParamStr(2);

		for p:= Succ(Low(TPathType)) to High(TPathType) do

			if p <> ptMapCurrent then Pathz[p]:= PathPrefix + '/' + Pathz[p]

	end;

  6: begin

		PathPrefix:= ParamStr(1);

		recordFileName:= ParamStr(2);

		if ParamStr(3) = '--set-video'	then

		begin

			val(ParamStr(4), cScreenWidth);

			val(ParamStr(5), cScreenHeight);

			cInitWidth:= cScreenWidth;

			cInitHeight:= cScreenHeight;

			cBitsStr:= ParamStr(6);

			val(cBitsStr, cBits);

		end

		else

		begin

			if ParamStr(3) = '--set-audio' then

			begin

				val(ParamStr(4), cInitVolume);

				isMusicEnabled:= ParamStr(5) = '1';

				isSoundEnabled:= ParamStr(6) = '1';

			end

			else

			begin

				if ParamStr(3) = '--set-other' then

				begin

					cLocaleFName:= ParamStr(4);

					cFullScreen:= ParamStr(5) = '1';

					cShowFPS:= ParamStr(6) = '1';

				end

				else DisplayUsage;

			end

		end;

		for p:= Succ(Low(TPathType)) to High(TPathType) do

			if p <> ptMapCurrent then Pathz[p]:= PathPrefix + '/' + Pathz[p]

	end;

 11: begin

		PathPrefix:= ParamStr(1);

		recordFileName:= ParamStr(2);

		if ParamStr(3) = '--set-multimedia' then

		begin

			val(ParamStr(4), cScreenWidth);

			val(ParamStr(5), cScreenHeight);

			cInitWidth:= cScreenWidth;

			cInitHeight:= cScreenHeight;

			cBitsStr:= ParamStr(6);

			val(cBitsStr, cBits);

			val(ParamStr(7), cInitVolume);

			isMusicEnabled:= ParamStr(8) = '1';

			isSoundEnabled:= ParamStr(9) = '1';

			cLocaleFName:= ParamStr(10);

			cFullScreen:= ParamStr(11) = '1';

		end

		else DisplayUsage;

		for p:= Succ(Low(TPathType)) to High(TPathType) do

			if p <> ptMapCurrent then Pathz[p]:= PathPrefix + '/' + Pathz[p]

	end;

 15: begin

		if ParamStr(3) = '--set-everything' then

		begin

			val(ParamStr(4), cScreenWidth);

			val(ParamStr(5), cScreenHeight);

			cInitWidth:= cScreenWidth;

			cInitHeight:= cScreenHeight;

			cBitsStr:= ParamStr(6);

			val(cBitsStr, cBits);

			val(ParamStr(7), cInitVolume);

			isMusicEnabled:= ParamStr(8) = '1';

			isSoundEnabled:= ParamStr(9) = '1';

			cLocaleFName:= ParamStr(10);

			cFullScreen:= ParamStr(11) = '1';

			cAltDamage:= ParamStr(12) = '1';

			cShowFPS:= ParamStr(13) = '1';

			val(ParamStr(14), cTimerInterval);

			cReducedQuality:= ParamStr(15) = '1';

		end

		else DisplayUsage;

		for p:= Succ(Low(TPathType)) to High(TPathType) do

			if p <> ptMapCurrent then Pathz[p]:= PathPrefix + '/' + Pathz[p]

	end;

	else DisplayUsage;

	end;

end;

/////////////////////////

procedure ShowMainWindow;

begin

if cFullScreen then ParseCommand('fullscr 1', true)

               else ParseCommand('fullscr 0', true);

SDL_ShowCursor(0)

end;

///////////////

procedure Game;

var s: shortstring;

begin

WriteToConsole('Init SDL... ');

SDLTry(SDL_Init(SDL_INIT_VIDEO) >= 0, true);

WriteLnToConsole(msgOK);

SDL_EnableUNICODE(1);

WriteToConsole('Init SDL_ttf... ');

SDLTry(TTF_Init <> -1, true);

WriteLnToConsole(msgOK);

ShowMainWindow;

InitKbdKeyTable;

if recordFileName = '' then InitIPC;

WriteLnToConsole(msgGettingConfig);

LoadLocale(Pathz[ptLocale] + '/' + cLocaleFName);

if recordFileName = '' then

	SendIPCAndWaitReply('C')        // ask for game config

else

	LoadRecordFromFile(recordFileName);

s:= 'eproto ' + inttostr(cNetProtoVersion);

SendIPCRaw(@s[0], Length(s) + 1); // send proto version

InitTeams;

AssignStores;

if isSoundEnabled then InitSound;

StoreInit;

isDeveloperMode:= false;

TryDo(InitStepsFlags = cifAllInited,

      'Some parameters not set (flags = ' + inttostr(InitStepsFlags) + ')',

      true);

MainLoop

end;

/////////////////////////

procedure GenLandPreview;

var Preview: TPreview;

	h: byte;

begin

InitIPC;

IPCWaitPongEvent;

TryDo(InitStepsFlags = cifRandomize,

      'Some parameters not set (flags = ' + inttostr(InitStepsFlags) + ')',

      true);

Preview:= GenPreview;

WriteLnToConsole('Sending preview...');

SendIPCRaw(@Preview, sizeof(Preview));

h:= MaxHedgehogs;

SendIPCRaw(@h, sizeof(h));

WriteLnToConsole('Preview sent, disconnect');

CloseIPC

end;

////////////////////////////////////////////////////////////////////////////////

/////////////////////////////// m a i n ////////////////////////////////////////

////////////////////////////////////////////////////////////////////////////////

begin

WriteLnToConsole('Hedgewars ' + cVersionString + ' engine');

GetParams;

Randomize;

if GameType = gmtLandPreview then GenLandPreview

                             else Game

end.