(*

 * 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}

{$ERROR Only Free Pascal supported!}

{$ENDIF}

program hwengine;

uses

	SDLh in 'SDLh.pas',

{$IFDEF GLES11}

	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';

// also: GSHandlers.inc

//       CCHandlers.inc

//       HHHandlers.inc

//       SinTable.inc

//       proto.inc

var recordFileName : shortstring = '';

procedure OnDestroy; forward;

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

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);

			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();

{$IFNDEF IPHONEOS}

//not going to make captures on the iPhone

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;

{$ENDIF}

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;

{$IFDEF TOUCHINPUT}

type TDirection = (nodir, left, right);

var x, y, dx, dy, mouseState: LongInt;

    tiltValue: LongInt;

    direction: TDirection = nodir;

    movedbybuttons: boolean = false;

{$ENDIF}

begin

PrevTime:= SDL_GetTicks;

repeat

while SDL_PollEvent(@event) <> 0 do

{$IFDEF TOUCHINPUT}

if (direction <> nodir) and (movedbybuttons = true) then

begin

	AddFileLog('* Hedgehog moving *');

        uKeys.isWalking:= true;

        if direction = left then uKeys.leftKey:= true

        else if direction = right then uKeys.rightKey:= true;

end

else uKeys.isWalking:= false;

{$ENDIF}

	case event.type_ of

{$IFDEF SDL13}

                SDL_WINDOWEVENT:

{$ELSE}

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

                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));

{$IFDEF TOUCHINPUT}

                SDL_MOUSEMOTION: begin

                        AddFileLog('*********************************************       motion');

                        mouseState:= SDL_GetMouseState(0, @x, @y);

                        SDL_GetRelativeMouseState(0, @dx, @dy);

                        direction:= nodir;

                        if boolean(mouseState) then

                        begin

                                AddFileLog('x: ' + inttostr(x) + ' y: ' + inttostr(y) + ' dx: ' + inttostr(dx) + ' dy: ' + inttostr(dy));

                                {* zoom slider *}

                                if (x <= 50) and (y <= 430) and (y > 50) then 

                                begin

                                        if (dy > 0) then uKeys.wheelDown:= true

                                        else if (dy < 0) then uKeys.wheelUp:= true;

                                end;

                                {* aim slider *}

                                if (x > 270) and (y > 50) and (y <= 430) then

                                begin

                                        if (dy > 0) then uKeys.downKey:= true

                                        else if (dy < 0) then uKeys.upKey:= true;

                                end;

                                {* switch *}

                                if (x > 50) and (x <= 270) and (y > 400) then

                                begin

                                        if (dy <> 0) then uKeys.tabKey:= true

                                end;

                        end;

                end;

        {*MoveCamera is in uWord.pas -- conflicts with other commands*}

                SDL_MOUSEBUTTONDOWN: begin

                        AddFileLog('*********************************************       touch down');

                        mouseState:= SDL_GetMouseState(0, @x, @y);                       

                        {* attack *}

                        if (x > 50) and (x <= 270) and (y <= 50) then

                        begin

                                AddFileLog('Space DOWN -- x: ' + inttostr(x) + ' y: ' + inttostr(y));

                                uKeys.spaceKey:= true;

                                uKeys.isAttacking:= true;

                        end;

                        if (x <= 50) and (y <= 50) then

                        begin

                                AddFileLog('Left Arrow Key DOWN -- x: ' + inttostr(x) + ' y: ' + inttostr(y));

                                direction:= left;

				movedbybuttons:= true;

                        end;

                        if (x > 270) and (y <= 50) then

                        begin

                                AddFileLog('Right Arrow Key DOWN -- x: ' + inttostr(x) + ' y: ' + inttostr(y));

                                direction:= right;

				movedbybuttons:= true;

                        end;

                        {* high jump *}                        

                        if (x > 160) and (x <= 270) and (y > 400) then

                        begin

{$IFDEF DEBUGFILE}

                                AddFileLog('Backspace -- x: ' + inttostr(x) + ' y: ' + inttostr(y));

{$ENDIF}

                                uKeys.backspaceKey:= true;

                        end;

                end;

                SDL_MOUSEBUTTONUP: begin

                        AddFileLog('*********************************************       touch up');

                        mouseState:= SDL_GetMouseState(0, @x, @y);

                        uKeys.leftClick:= true;

                        {* open ammo menu *}

                        if (y > 430) and (x > 270) then

                        begin

{$IFDEF DEBUGFILE}

                                AddFileLog('Right Click -- x: ' + inttostr(x) + ' y: ' + inttostr(y) );

{$ENDIF}

                                uKeys.rightClick:= true;

                        end;

                        {* long jump *}                        

                        if (x > 50) and (x <= 160) and (y > 400) then

                        begin

{$IFDEF DEBUGFILE}

                                AddFileLog('Enter -- x: ' + inttostr(x) + ' y: ' + inttostr(y));

{$ENDIF}

                                uKeys.enterKey:= true;

                        end;

                        {* reset zoom *}

                        if (x <= 50) and (y > 430) then

                        begin

{$IFDEF DEBUGFILE}

                                AddFileLog('Middle Click -- x: ' + inttostr(x) + ' y: ' + inttostr(y));

{$ENDIF}

                                uKeys.middleClick:= true;

                        end;

                        {* end movement and attack *}

{$IFDEF DEBUGFILE}

                        AddFileLog('Arrow Keys UP | Space UP -- x: ' + inttostr(x) + ' y: ' + inttostr(y) );

{$ENDIF}

                        direction:= nodir;

			movedbybuttons:= false;

                        uKeys.isAttacking:= false;

		end;

{$ENDIF}

{$IFDEF IPHONEOS}

		SDL_JOYAXISMOTION: begin

                {* axis 0 = left and right;

                   axis 1 = up and down;

                   axis 2 = back and forth; *}

{$IFDEF DEBUGFILE}

                        AddFileLog('*********************************************       accelerometer');

{$ENDIF}

			tiltValue:= SDL_JoystickGetAxis(uKeys.theJoystick, 0);

                        if (CurrentTeam <> nil) then

                        begin

				AddFileLog('Joystick: 0; Axis: 0; Value: ' + inttostr(tiltValue));

                                if tiltValue > 1500 then

                                begin

					uKeys.rightKey:= true;

					uKeys.isWalking:= true;

                                end

                                else

                                        if tiltValue <= -1500 then

                                        begin 

						uKeys.leftKey:= true;

						uKeys.isWalking:= true;

                                        end

                                        else

                                                if (tiltValue  > -1500) and (tiltValue <= 1500) and (movedbybuttons = false) then uKeys.isWalking:= false;  

                        end;

                end;

{$ELSE}

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

		SDL_MOUSEBUTTONUP: if event.button.button = SDL_BUTTON_WHEELDUP 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);

{$ENDIF}

		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 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');

	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

 17: 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';

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

     cLocaleFName:= ParamStr(9);

     val(ParamStr(10), cInitVolume);

     val(ParamStr(11), cTimerInterval);

     PathPrefix:= ParamStr(12);

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

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

     UserNick:= DecodeBase64(ParamStr(15));

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

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

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

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

     end;

{$IFDEF IPHONEOS}

  0: begin

        PathPrefix:= 'hedgewars/Data';

		recordFileName:= 'hedgewars/save.hws';

		val('320', cScreenWidth);

		val('480', cScreenHeight);

		cInitWidth:= cScreenWidth;

		cInitHeight:= cScreenHeight;

		cBitsStr:= '32';

		val(cBitsStr, cBits);

		val('100', cInitVolume);

		isMusicEnabled:= false;

		isSoundEnabled:= false;

		cLocaleFName:= 'en.txt';

		cFullScreen:= true; //T or F is is the same here

		cAltDamage:= false;

		cShowFPS:= true;

		val('8', cTimerInterval);

		cReducedQuality:= true;

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

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

     end;

{$ENDIF}

  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;