/*Copyright (C) 2003 Parallel RealitiesThis program is free software; you can redistribute it and/ormodify it under the terms of the GNU General Public Licenseas published by the Free Software Foundation; either version 2of the License, or (at your option) any later version.This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY 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 Licensealong with this program; if not, write to the Free SoftwareFoundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.*/#include "version.h"#include "title.h"signed char showGameMenu(signed char continueSaveSlot){	graphics.blitText(2);	if (continueSaveSlot != 0)	{		graphics.blitText(3);		graphics.blitText(4);	}	graphics.blitText(5);	if (engine.cheat)	{		graphics.textShape[7].y = 450;		graphics.blitText(6);	}	else	{		graphics.textShape[7].y = 430;	}	graphics.blitText(7);	if (engine.cheat)		return 6;	return 5;}signed char showLoadMenu(){	signed char rtn = 1;	for (int i = 13 ; i < 18 ; i++)	{		if (graphics.textShape[i].image != NULL)		{			graphics.blitText(i);			rtn++;			graphics.textShape[12].y = graphics.textShape[i].y + 40;		}	}	graphics.blitText(12);	return rtn;}void createOptionsMenu(){	if (currentGame.useSound)		graphics.textSurface(8, "SOUND - ON", -1, 350, FONT_WHITE);	else		graphics.textSurface(8, "SOUND - OFF", -1, 350, FONT_WHITE);	if (currentGame.useMusic)		graphics.textSurface(9, "MUSIC - ON", -1, 370, FONT_WHITE);	else		graphics.textSurface(9, "MUSIC - OFF", -1, 370, FONT_WHITE);	if (currentGame.fullScreen)		graphics.textSurface(10, "FULLSCREEN - ON", -1, 390, FONT_WHITE);	else		graphics.textSurface(10, "FULLSCREEN - OFF", -1, 390, FONT_WHITE);	char string[50];	strcpy(string, "AUTO SAVE SLOT - NONE");	if (currentGame.autoSaveSlot > -1)		sprintf(string, "AUTO SAVE SLOT - #%d", currentGame.autoSaveSlot + 1);	graphics.textSurface(11, string, -1, 410, FONT_WHITE);}signed char showOptionsMenu(){	graphics.textShape[12].y = 450;	graphics.blitText(8);	graphics.blitText(9);	graphics.blitText(10);	graphics.blitText(11);	graphics.blitText(12);	return 5;}void createCheatMenu(){	if (engine.cheatShield)		graphics.textSurface(18, "UNLIMITED SHIELD - ON", -1, 350, FONT_WHITE);	else		graphics.textSurface(18, "UNLIMITED SHIELD - OFF", -1, 350, FONT_WHITE);	if (engine.cheatAmmo)		graphics.textSurface(19, "UNLIMITED AMMO - ON", -1, 370, FONT_WHITE);	else		graphics.textSurface(19, "UNLIMITED AMMO - OFF", -1, 370, FONT_WHITE);	if (engine.cheatCash)		graphics.textSurface(20, "UNLIMITED CASH - ON", -1, 390, FONT_WHITE);	else		graphics.textSurface(20, "UNLIMITED CASH - OFF", -1, 390, FONT_WHITE);	if (engine.cheatTime)		graphics.textSurface(21, "UNLIMITED TIME - ON", -1, 410, FONT_WHITE);	else		graphics.textSurface(21, "UNLIMITED TIME - OFF", -1, 410, FONT_WHITE);}signed char showCheatMenu(){	graphics.textShape[12].y = 450;	graphics.blitText(18);	graphics.blitText(19);	graphics.blitText(20);	graphics.blitText(21);	graphics.blitText(12);	return 5;}/*This is the main title screen, with the stars whirling past and the"Parallel Realities, Present..." text. Nothing too special.*/int doTitle(){	newGame();	engine.gameSection = SECTION_TITLE;	graphics.flushBuffer();	graphics.freeGraphics();	resetLists();		// required to stop the title screen crashing	currentGame.system = 0;	currentGame.area = 0;	loadGameGraphics();	graphics.clearScreen(graphics.black);	graphics.updateScreen();	graphics.clearScreen(graphics.black);	SDL_Delay(1000);	signed char continueSaveSlot = initSaveSlots();	loadMusic("music/Platinum.mod");	loadBackground("gfx/spirit.jpg");	SDL_Surface *prlogo, *sflogo;	prlogo = loadImage("gfx/prlogo.gif");	sflogo = loadImage("gfx/sflogo.gif");	int prx = ((800 - prlogo->w) / 2);	int pry = ((600 - prlogo->h) / 2);	int sfx = ((800 - sflogo->w) / 2);	int sfy = ((600 - sflogo->h) / 2);	graphics.textSurface(0, "PRESENTS", -1, 300, FONT_WHITE);	graphics.textSurface(1, "AN SDL GAME", -1, 300, FONT_WHITE);	graphics.textSurface(2, "START NEW GAME", -1, 350, FONT_WHITE);	graphics.textSurface(3, "LOAD GAME", -1, 370, FONT_WHITE);	graphics.textSurface(4, "CONTINUE CURRENT GAME", -1, 390, FONT_WHITE);	graphics.textSurface(5, "OPTIONS", -1, 410, FONT_WHITE);	graphics.textSurface(6, "CHEAT OPTIONS", -1, 430, FONT_WHITE);	graphics.textSurface(7, "QUIT", -1, 430, FONT_WHITE);	createOptionsMenu();	graphics.textSurface(12, "BACK TO MAIN MENU", -1, 0, FONT_WHITE);	createCheatMenu();	// Set the star motion	engine.ssx = -0.5;	engine.ssy = 0;	int then = SDL_GetTicks();	int now;	for (int i = 0 ; i < 15 ; i++)	{		enemy[i] = defEnemy[rand() % 3];		if ((rand() % 5) == 0)			enemy[i] = defEnemy[CD_TRANSPORTSHIP];		if ((rand() % 5) == 0)			enemy[i] = defEnemy[CD_MINER];		enemy[i].x = rand() % 800;		enemy[i].y = rand() % 560;		enemy[i].dx = 1 + rand() % 3;		enemy[i].face = 0;	}	int redGlow = 255;	signed char redDir = -2;	char buildVersion[25];	sprintf(buildVersion, "Version "VERSION);	SDL_Rect optionRec;	optionRec.x = 290;	optionRec.y = 345;	optionRec.h = 22;	optionRec.w = 215;	signed char selectedOption = 1;	if (continueSaveSlot > 0)		{selectedOption = 3; optionRec.y += 40;}	signed char skip = 0;	signed char listLength = 5; // menu list length	signed char menuType = 0;	graphics.drawBackGround();	unsigned long frameLimit = SDL_GetTicks();	engine.done = 0;	flushInput();	engine.keyState[SDLK_LCTRL] = engine.keyState[SDLK_RCTRL] = 0;	if ((currentGame.useMusic) && (engine.useAudio))		Mix_PlayMusic(engine.music, 1);	while (!engine.done)	{		graphics.updateScreen();		graphics.unBuffer();		now = SDL_GetTicks();		doStarfield();		doExplosions();		for (int i = 0 ; i < 15 ; i++)		{			addEngine(&enemy[i]);			enemy[i].x += enemy[i].dx;			graphics.blit(enemy[i].image[0], (int)enemy[i].x, (int)enemy[i].y);			if (enemy[i].x > 830)			{				enemy[i].x = -10;				enemy[i].y = rand() % 580;				enemy[i].dx = 1 + rand() % 3;			}		}		if ((now - then > 2000) && (now - then < 8000) && (!skip))		{			graphics.blit(prlogo, prx, pry);		}		else if ((now - then > 9000) && (now - then < 15000) && (!skip))		{   		graphics.blitText(0);		}		else if ((now - then > 16000) && (now - then < 21000) && (!skip))		{			graphics.blitText(1);		}		else if ((now - then > 25500) || (skip))		{			graphics.blit(sflogo, sfx, sfy);			if ((now - then >= 27500) || (skip))			{				graphics.addBuffer(280, 345, 235, 145);				graphics.blevelRect(optionRec.x, optionRec.y, optionRec.w, optionRec.h, redGlow, 0x00, 0x00);				switch(menuType)				{					case 0:						listLength = showGameMenu(continueSaveSlot);						break;					case 1:						listLength = showLoadMenu();						break;					case 2:						listLength = showOptionsMenu();						break;					case 3:						listLength = showCheatMenu();						break;				}				redGlow += redDir;				if (redGlow <= 0) {redDir = 2; redGlow = 0;}				if (redGlow >= 255) {redDir = -2; redGlow = 255;}				if (engine.keyState[SDLK_UP])				{					engine.keyState[SDLK_UP] = 0;					Math::wrapChar(&(--selectedOption), 1, listLength);					if (menuType == 0)						if ((selectedOption == 2) || (selectedOption == 3))							if (continueSaveSlot == 0)								selectedOption = 1;				}				if (engine.keyState[SDLK_DOWN])				{					engine.keyState[SDLK_DOWN] = 0;					Math::wrapChar(&(++selectedOption), 1, listLength);					if (menuType == 0)						if ((selectedOption == 2) || (selectedOption == 3))							if (continueSaveSlot == 0)								selectedOption = 4;				}				optionRec.y = 326 + (20 * selectedOption);				if (menuType > 0)					if (selectedOption == listLength)						optionRec.y += 20;				if (!skip)				{					graphics.drawString("Copyright Parallel Realities 2003", 5, 580, FONT_WHITE, graphics.background);					graphics.drawString(buildVersion, 695, 580, FONT_WHITE, graphics.background);					graphics.addBuffer(0, 580, 800, 20);					skip = 1;				}			}		}		getPlayerInput();		// if someone has invoked the credits cheat		if (engine.cheatCredits)		{			doCredits();			engine.cheatCredits = 0;		}		if ((engine.keyState[SDLK_LCTRL]) || (engine.keyState[SDLK_RCTRL]) || (engine.keyState[SDLK_SPACE]))		{			if ((now - then <= 27500) && (!skip))			{				graphics.drawString("Copyright Parallel Realities 2003", 5, 580, FONT_WHITE, graphics.background);				graphics.drawString(buildVersion, 695, 580, FONT_WHITE, graphics.background);				graphics.addBuffer(0, 580, 800, 20);				skip = 1;			}			else			{				switch(menuType)				{					case 0:						if ((selectedOption == 1) || (selectedOption == 3))							engine.done = 1;						else if (selectedOption == 2)