(*

 * 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

 *)

{$INCLUDE "options.inc"}

{$IFDEF WIN32}

{$R hwengine.rc}

{$ENDIF}

unit hwengine;

interface

{$ELSE}

program hwengine;

{$ENDIF}

uses	SDLh in 'SDLh.pas',

	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',

	uTriggers in 'uTriggers.pas',

	uLandTexture in 'uLandTexture.pas',

	uScript in 'uScript.pas',

	{$IFDEF IPHONEOS}PascalExports in 'PascalExports.pas',{$ENDIF}

	sysutils;

// also: GSHandlers.inc

//       CCHandlers.inc

//       HHHandlers.inc

//       SinTable.inc

//       proto.inc

type arrayofpchar = array[0..5] of PChar;

procedure DoTimer(Lag: LongInt);

procedure OnDestroy;

procedure MainLoop;

procedure ShowMainWindow;

procedure Game(gameArgs: arrayofpchar); cdecl; export;

procedure initEverything;

procedure freeEverything;

implementation

{$ELSE}

procedure OnDestroy; forward;

procedure freeEverything; forward;

{$ENDIF}

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

procedure DoTimer(Lag: LongInt);

{$IFNDEF IPHONEOS}

var s: string;

{$ENDIF}

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;

				SetScale(zoom);

				ScriptCall('onGameStart');

				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

				isTerminated:= true;

				end;

		end;

	SDL_GL_SwapBuffers();

{$IFDEF SDL13}

	SDL_RenderPresent();

{$ENDIF}

{$IFNDEF IPHONEOS}

	// not going to make captures on the iPhone

	if flagMakeCapture then

	begin

		flagMakeCapture:= false;

		s:= 'hw_' + FormatDateTime('YYYY-MM-DD_HH-mm-ss', Now()) + inttostr(GameTicks);

		WriteLnToConsole('Saving ' + s + '...');

		MakeScreenshot(s);

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

	end;

{$ENDIF}

end;

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

procedure OnDestroy;

begin

	WriteLnToConsole('Freeing resources...');

	if isSoundEnabled then ReleaseSound();

	StoreRelease();

	FreeLand();

	ControllerClose();

	SendKB();

	CloseIPC();

	TTF_Quit();

	{$IFDEF SDL13}SDL_VideoQuit();{$ENDIF}

	SDL_Quit();

	{$IFDEF IPHONEOS}

	freeEverything();

	{$ENDIF}

	exit();

end;

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

procedure MainLoop; 

var PrevTime, CurrTime: Longword;

    {$IFNDEF IPHONEOS}event: TSDL_Event;{$ENDIF}

begin

	PrevTime:= SDL_GetTicks;

	repeat

{$IFNDEF IPHONEOS}

// have to remove this cycle because otherwise it segfaults at exit

		while SDL_PollEvent(@event) <> 0 do

		begin

			case event.type_ of

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

{$IFDEF SDL13}

				SDL_WINDOWEVENT:

{$ELSE}

				SDL_ACTIVEEVENT:

{$ENDIF}

					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_MOUSEBUTTONDOWN: if event.button.button = SDL_BUTTON_WHEELDOWN then uKeys.wheelDown:= true;

				SDL_MOUSEBUTTONUP: if event.button.button = SDL_BUTTON_WHEELUP then uKeys.wheelUp:= true;

				SDL_JOYAXISMOTION: ControllerAxisEvent(event.jaxis.which, event.jaxis.axis, event.jaxis.value);

				SDL_JOYHATMOTION: ControllerHatEvent(event.jhat.which, event.jhat.hat, event.jhat.value);

				SDL_JOYBUTTONDOWN: ControllerButtonEvent(event.jbutton.which, event.jbutton.button, true);

				SDL_JOYBUTTONUP: ControllerButtonEvent(event.jbutton.which, event.jbutton.button, false);

				SDL_QUITEV: isTerminated:= true

			end; // end case event.type_ of

		end; // end while SDL_PollEvent(@event) <> 0 do

{$ENDIF}

		CurrTime:= SDL_GetTicks;

		if PrevTime + cTimerInterval <= CurrTime then

		begin

			DoTimer(CurrTime - PrevTime);

			PrevTime:= CurrTime

		end else SDL_Delay(1);

		if isTerminated = false then IPCCheckSock();

	until isTerminated;

	exit();

end;

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

procedure ShowMainWindow;

begin

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

	else ParseCommand('fullscr 0', true);

	SDL_ShowCursor(0)

end;

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

procedure Game(gameArgs: arrayofpchar); cdecl; export;

{$ELSE}

procedure Game;cdecl; export;

{$ENDIF}

var	p: TPathType;

	s: shortstring;

begin

	initEverything();

	Randomize();

	cScreenWidth:= 480;

	cScreenHeight:= 320;

	cInitWidth:= cScreenWidth;

	cInitHeight:= cScreenHeight;

	cBits:= 32;

	cFullScreen:= false;

	cVSyncInUse:= true;

	cTimerInterval:= 8;

	PathPrefix:= 'Data';

	cReducedQuality:= false;

	cShowFPS:= true;

	cInitVolume:= 100;

	UserNick:= gameArgs[0];

	val(gameArgs[1], ipcPort);

	isSoundEnabled:= gameArgs[2] = '1';

	isMusicEnabled:= gameArgs[3] = '1';

	cLocaleFName:= gameArgs[4];

	cAltDamage:= gameArgs[5] = '1';

{$ENDIF}

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

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

	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();

	AddProgress();

	ControllerInit(); // has to happen before InitKbdKeyTable to map keys

	InitKbdKeyTable();

	if recordFileName = '' then

		InitIPC;

	WriteLnToConsole(msgGettingConfig);

	LoadLocale(Pathz[ptLocale] + '/en.txt');  // Do an initial load with english

	if cLocaleFName <> 'en.txt' then

        begin

        // Try two letter locale first before trying specific locale overrides

        if (Length(cLocaleFName) > 6) and (Copy(cLocaleFName,1,2)+'.txt' <> 'en.txt') then 

            LoadLocale(Pathz[ptLocale] + '/' + Copy(cLocaleFName,1,2)+'.txt');

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

        end;

	if recordFileName = '' then

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

	else

		LoadRecordFromFile(recordFileName);

	ScriptOnGameInit;

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

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

	InitTeams();

	AssignStores();

	if isSoundEnabled then

		InitSound();

	isDeveloperMode:= false;

	TryDo(InitStepsFlags = cifAllInited, 'Some parameters not set (flags = ' + inttostr(InitStepsFlags) + ')', true);

	MainLoop();

	OnDestroy();

	exit();

end;

procedure initEverything;

begin

	init_uConsts();

	init_uMisc();

	init_uConsole();	// MUST happen after uMisc

	init_uAI();

	//uAIActions does not need initialization

	//uAIAmmoTests does not need initialization

	init_uAIMisc();

	init_uAmmos();

	init_uChat();

	init_uCollisions();

	//uFloat does not need initialization

	//uGame does not need initialization

	init_uGears();

	init_uIO();

	init_uKeys();

	init_uLand();

	//uLandGraphics does not need initialization

	//uLandObjects does not need initialization

	//uLandTemplates does not need initialization

	//uLandTexture does not need initialization

	//uLocale does not need initialization

	init_uRandom();	

	//uSHA does not need initialization

	init_uSound();

	init_uStats();

	init_uStore();

	init_uTeams();

	init_uTriggers();

	init_uVisualGears();

	init_uWorld();

	init_uScript();

end;

procedure freeEverything;

begin

	free_uWorld();

	free_uVisualGears();	//stub

	free_uTriggers();	//stub

	free_uTeams();

	free_uStore();

	free_uStats();		//stub

	free_uSound();		//stub

	//uSHA does not need to be freed

	free_uRandom();		//stub

	//uLocale does not need to be freed

	//uLandTemplates does not need to be freed

	//uLandTexture does not need to be freed

	//uLandObjects does not need to be freed

	//uLandGraphics does not need to be freed

	free_uLand();

	free_uKeys();		//stub

	free_uIO();

	free_uGears();

	//uGame does not need to be freed

	//uFloat does not need to be freed

	free_uCollisions();

	free_uChat();

	free_uAmmos();

	free_uAIMisc();		//stub

	//uAIAmmoTests does not need to be freed

	//uAIActions does not need to be freed

	free_uAI();		//stub

	free_uConsole();

	free_uMisc();

	free_uConsts();		//stub

	free_uScript();

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;

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

procedure Resize(w, h: LongInt);

begin

	cScreenWidth:= w;

	cScreenHeight:= h;

	if cFullScreen then

		ParseCommand('/fullscr 1', true)

	else

		ParseCommand('/fullscr 0', true);

end;

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

procedure DisplayUsage;

var i: LongInt;

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 width] [screen height] [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');

	Write('parsed command: ');

	for i:=0 to ParamCount do

		Write(ParamStr(i) + ' ');

	WriteLn();

	halt(1);

end;

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

procedure GetParams;

{$IFDEF DEBUGFILE}

var i: LongInt;

{$ENDIF}

begin

	case ParamCount of

		18: 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';

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

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

			cLocaleFName:= ParamStr(10);

			val(ParamStr(11), cInitVolume);

			val(ParamStr(12), cTimerInterval);

			PathPrefix:= ParamStr(13);

			cShowFPS:= ParamStr(14) = '1';

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

			UserNick:= DecodeBase64(ParamStr(16));

			isMusicEnabled:= ParamStr(17) = '1';

			cReducedQuality:= ParamStr(18) = '1';

		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);

		end;

		6: begin

			PathPrefix:= ParamStr(1);

			recordFileName:= ParamStr(2);