1 //

     2 //  gameSetup.m

     3 //  hwengine

     4 //

     5 //  Created by Vittorio on 10/01/10.

     6 //  Copyright 2010 __MyCompanyName__. All rights reserved.

     7 //

     8 

     9 #include <sys/types.h>

    10 #include <sys/sysctl.h>

    11 

    12 #import "GameSetup.h"

    13 #import "SDL_uikitappdelegate.h"

    14 #import "SDL_net.h"

    15 #import "PascalImports.h"

    16 #import "CommodityFunctions.h"

    17 

    18 #define BUFFER_SIZE 256

    19 #define debug(format, ...) CFShow([NSString stringWithFormat:format, ## __VA_ARGS__]);

    20 

    21 @implementation GameSetup

    22 

    23 @synthesize systemSettings, gameConfig;

    24 

    25 -(id) init {

    26 	if (self = [super init]) {

    27         ipcPort = randomPort();

    28         

    29         // should check they exist and throw and exection if not

    30         NSDictionary *dictSett = [[NSDictionary alloc] initWithContentsOfFile:SETTINGS_FILE()];

    31         self.systemSettings = dictSett;

    32         [dictSett release];

    33         

    34         NSDictionary *dictGame = [[NSDictionary alloc] initWithContentsOfFile:GAMECONFIG_FILE()];

    35         self.gameConfig = dictGame;

    36         [dictGame release];

    37     } 

    38     return self;

    39 }

    40 

    41 -(NSString *)description {

    42     return [NSString stringWithFormat:@"ipcport: %d\nsockets: %d,%d\n teams: %@\n systemSettings: %@",ipcPort,sd,csd,gameConfig,systemSettings];

    43 }

    44 

    45 -(void) dealloc {

    46     [gameConfig release];

    47     [systemSettings release];

    48 	[super dealloc];

    49 }

    50 

    51 #pragma mark -

    52 #pragma mark Provider functions

    53 // unpacks team data from the selected team.plist to a sequence of engine commands

    54 -(void) provideTeamData:(NSString *)teamName forHogs:(NSInteger) numberOfPlayingHogs withHealth:(NSInteger) initialHealth ofColor:(NSNumber *)teamColor {

    55     /*

    56      addteam <32charsMD5hash> <color> <team name>

    57      addhh <level> <health> <hedgehog name>

    58      <level> is 0 for human, 1-5 for bots (5 is the most stupid)

    59     */

    60     

    61     NSString *teamFile = [[NSString alloc] initWithFormat:@"%@/%@", TEAMS_DIRECTORY(), teamName];

    62     NSDictionary *teamData = [[NSDictionary alloc] initWithContentsOfFile:teamFile];

    63     [teamFile release];

    64     

    65     NSString *teamHashColorAndName = [[NSString alloc] initWithFormat:@"eaddteam %@ %@ %@", 

    66                                       [teamData objectForKey:@"hash"], [teamColor stringValue], [teamData objectForKey:@"teamname"]];

    67     [self sendToEngine: teamHashColorAndName];

    68     [teamHashColorAndName release];

    69     

    70     NSString *grave = [[NSString alloc] initWithFormat:@"egrave %@", [teamData objectForKey:@"grave"]];

    71     [self sendToEngine: grave];

    72     [grave release];

    73     

    74     NSString *fort = [[NSString alloc] initWithFormat:@"efort %@", [teamData objectForKey:@"fort"]];

    75     [self sendToEngine: fort];

    76     [fort release];

    77     

    78     NSString *voicepack = [[NSString alloc] initWithFormat:@"evoicepack %@", [teamData objectForKey:@"voicepack"]];

    79     [self sendToEngine: voicepack];

    80     [voicepack release];

    81     

    82     NSString *flag = [[NSString alloc] initWithFormat:@"eflag %@", [teamData objectForKey:@"flag"]];

    83     [self sendToEngine: flag];

    84     [flag release];

    85     

    86     NSArray *hogs = [teamData objectForKey:@"hedgehogs"];

    87     for (int i = 0; i < numberOfPlayingHogs; i++) {

    88         NSDictionary *hog = [hogs objectAtIndex:i];

    89         

    90         NSString *hogLevelHealthAndName = [[NSString alloc] initWithFormat:@"eaddhh %@ %d %@", 

    91                                            [hog objectForKey:@"level"], initialHealth, [hog objectForKey:@"hogname"]];

    92         [self sendToEngine: hogLevelHealthAndName];

    93         [hogLevelHealthAndName release];

    94         

    95         NSString *hogHat = [[NSString alloc] initWithFormat:@"ehat %@", [hog objectForKey:@"hat"]];

    96         [self sendToEngine: hogHat];

    97         [hogHat release];

    98     }

    99     

   100     [teamData release];

   101 }

   102 

   103 // unpacks ammostore data from the selected ammo.plist to a sequence of engine commands

   104 -(void) provideAmmoData:(NSString *)ammostoreName forPlayingTeams:(NSInteger) numberOfTeams {

   105     NSString *weaponPath = [[NSString alloc] initWithFormat:@"%@/%@",WEAPONS_DIRECTORY(),ammostoreName];

   106     NSDictionary *ammoData = [[NSDictionary alloc] initWithContentsOfFile:weaponPath];

   107     [weaponPath release];

   108     

   109     NSString *ammloadt = [[NSString alloc] initWithFormat:@"eammloadt %@", [ammoData objectForKey:@"ammostore_initialqt"]];

   110     [self sendToEngine: ammloadt];

   111     [ammloadt release];

   112     

   113     NSString *ammprob = [[NSString alloc] initWithFormat:@"eammprob %@", [ammoData objectForKey:@"ammostore_probability"]];

   114     [self sendToEngine: ammprob];

   115     [ammprob release];

   116     

   117     NSString *ammdelay = [[NSString alloc] initWithFormat:@"eammdelay %@", [ammoData objectForKey:@"ammostore_delay"]];

   118     [self sendToEngine: ammdelay];

   119     [ammdelay release];

   120     

   121     NSString *ammreinf = [[NSString alloc] initWithFormat:@"eammreinf %@", [ammoData objectForKey:@"ammostore_crate"]];

   122     [self sendToEngine: ammreinf];

   123     [ammreinf release];

   124     

   125     // sent twice so it applies to both teams

   126     NSString *ammstore = [[NSString alloc] initWithString:@"eammstore"];

   127     for (int i = 0; i < numberOfTeams; i++)

   128         [self sendToEngine: ammstore];

   129     [ammstore release];

   130     

   131     [ammoData release];

   132 }

   133 

   134 // unpacks scheme data from the selected scheme.plist to a sequence of engine commands

   135 -(NSInteger) provideScheme:(NSString *)schemeName {

   136     NSString *schemePath = [[NSString alloc] initWithFormat:@"%@/%@",SCHEMES_DIRECTORY(),schemeName];

   137     NSArray *scheme = [[NSArray alloc] initWithContentsOfFile:schemePath];

   138     [schemePath release];

   139     int result = 0;

   140     int i = 0;

   141 

   142     if ([[scheme objectAtIndex:i++] boolValue])

   143         result |= 0x01;

   144     if ([[scheme objectAtIndex:i++] boolValue])

   145         result |= 0x10;    

   146     if ([[scheme objectAtIndex:i++] boolValue])

   147         result |= 0x04;

   148     if ([[scheme objectAtIndex:i++] boolValue])

   149         result |= 0x08;    

   150     if ([[scheme objectAtIndex:i++] boolValue])

   151         result |= 0x20;

   152     if ([[scheme objectAtIndex:i++] boolValue])

   153         result |= 0x40;    

   154     if ([[scheme objectAtIndex:i++] boolValue])

   155         result |= 0x80;

   156     if ([[scheme objectAtIndex:i++] boolValue])

   157         result |= 0x100;    

   158     if ([[scheme objectAtIndex:i++] boolValue])

   159         result |= 0x200;

   160     if ([[scheme objectAtIndex:i++] boolValue])

   161         result |= 0x400;    

   162     if ([[scheme objectAtIndex:i++] boolValue])

   163         result |= 0x800;

   164     if ([[scheme objectAtIndex:i++] boolValue])

   165         result |= 0x2000;    

   166     if ([[scheme objectAtIndex:i++] boolValue])

   167         result |= 0x4000;

   168     if ([[scheme objectAtIndex:i++] boolValue])

   169         result |= 0x8000;    

   170     if ([[scheme objectAtIndex:i++] boolValue])

   171         result |= 0x10000;

   172     if ([[scheme objectAtIndex:i++] boolValue])

   173         result |= 0x20000;

   174     if ([[scheme objectAtIndex:i++] boolValue])

   175         result |= 0x80000;    

   176 

   177     NSString *flags = [[NSString alloc] initWithFormat:@"e$gmflags %d",result];

   178     [self sendToEngine:flags];

   179     [flags release];

   180     

   181     NSString *dmgMod = [[NSString alloc] initWithFormat:@"e$damagepct %d",[[scheme objectAtIndex:i++] intValue]];

   182     [self sendToEngine:dmgMod];

   183     [dmgMod release];

   184     

   185     NSString *turnTime = [[NSString alloc] initWithFormat:@"e$turntime %d",[[scheme objectAtIndex:i++] intValue] * 1000];

   186     [self sendToEngine:turnTime];

   187     [turnTime release];

   188     

   189     result = [[scheme objectAtIndex:i++] intValue]; // initial health

   190     

   191     NSString *sdTime = [[NSString alloc] initWithFormat:@"e$sd_turns %d",[[scheme objectAtIndex:i++] intValue]];

   192     [self sendToEngine:sdTime];

   193     [sdTime release];

   194     

   195     NSString *crateDrops = [[NSString alloc] initWithFormat:@"e$casefreq %d",[[scheme objectAtIndex:i++] intValue]];

   196     [self sendToEngine:crateDrops];

   197     [crateDrops release];

   198     

   199     NSString *minesTime = [[NSString alloc] initWithFormat:@"e$minestime %d",[[scheme objectAtIndex:i++] intValue] * 1000];

   200     [self sendToEngine:minesTime];

   201     [minesTime release];

   202     

   203     NSString *minesNumber = [[NSString alloc] initWithFormat:@"e$landadds %d",[[scheme objectAtIndex:i++] intValue]];

   204     [self sendToEngine:minesNumber];

   205     [minesNumber release];

   206     

   207     NSString *dudMines = [[NSString alloc] initWithFormat:@"e$minedudpct %d",[[scheme objectAtIndex:i++] intValue]];

   208     [self sendToEngine:dudMines];

   209     [dudMines release];

   210     

   211     NSString *explosives = [[NSString alloc] initWithFormat:@"e$explosives %d",[[scheme objectAtIndex:i++] intValue]];

   212     [self sendToEngine:explosives];

   213     [explosives release];

   214     

   215     [scheme release];

   216     return result;

   217 }

   218 

   219 #pragma mark -

   220 #pragma mark Thread/Network relevant code

   221 // select one of GameSetup method and execute it in a seprate thread

   222 -(void) startThread: (NSString *) selector {

   223 	SEL usage = NSSelectorFromString(selector);

   224 	[NSThread detachNewThreadSelector:usage toTarget:self withObject:nil];

   225 }

   226 

   227 // wrapper that computes the length of the message and then sends the command string

   228 -(int) sendToEngine: (NSString *)string {

   229 	uint8_t length = [string length];

   230 	

   231 	SDLNet_TCP_Send(csd, &length , 1);

   232 	return SDLNet_TCP_Send(csd, [string UTF8String], length);

   233 }

   234 

   235 // method that handles net setup with engine and keeps connection alive

   236 -(void) engineProtocol {

   237 	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

   238 	IPaddress ip;

   239 	int eProto;

   240 	BOOL clientQuit, serverQuit;

   241 	char buffer[BUFFER_SIZE], string[BUFFER_SIZE];

   242 	uint8_t msgSize;

   243 	uint16_t gameTicks;

   244 

   245     serverQuit = NO;

   246 

   247 	if (SDLNet_Init() < 0) {

   248 		DLog(@"SDLNet_Init: %s", SDLNet_GetError());

   249         serverQuit = YES;

   250 	}

   251 	

   252 	// Resolving the host using NULL make network interface to listen

   253 	if (SDLNet_ResolveHost(&ip, NULL, ipcPort) < 0) {

   254 		DLog(@"SDLNet_ResolveHost: %s\n", SDLNet_GetError());

   255         serverQuit = YES;

   256 	}

   257 	

   258 	// Open a connection with the IP provided (listen on the host's port) 

   259 	if (!(sd = SDLNet_TCP_Open(&ip))) {

   260 		DLog(@"SDLNet_TCP_Open: %s %\n", SDLNet_GetError(), ipcPort);

   261         serverQuit = YES;

   262 	}

   263 	

   264 	DLog(@"Waiting for a client on port %d", ipcPort);

   265 	while (!serverQuit) {

   266 		// This check the sd if there is a pending connection.

   267         // If there is one, accept that, and open a new socket for communicating

   268 		csd = SDLNet_TCP_Accept(sd);

   269 		if (NULL != csd) {

   270 			// Now we can communicate with the client using csd socket

   271 			// sd will remain opened waiting other connections

   272 			DLog(@"client found");

   273 			

   274 			//first byte of the command alwayas contain the size of the command

   275 			SDLNet_TCP_Recv(csd, &msgSize, sizeof(uint8_t));

   276 			

   277 			SDLNet_TCP_Recv(csd, buffer, msgSize);

   278 			gameTicks = SDLNet_Read16 (&buffer[msgSize - 2]);

   279 			//DLog(@"engineProtocol - %d: received [%s]", gameTicks, buffer);

   280 			

   281 			if ('C' == buffer[0]) {

   282 				DLog(@"sending game config");

   283                 

   284 				// local game

   285 				[self sendToEngine:@"TL"];

   286 				

   287 				// seed info

   288 				[self sendToEngine:[self.gameConfig objectForKey:@"seed_command"]];

   289 

   290 				// dimension of the map

   291 				[self sendToEngine:[self.gameConfig objectForKey:@"templatefilter_command"]];

   292 				[self sendToEngine:[self.gameConfig objectForKey:@"mapgen_command"]];

   293 				[self sendToEngine:[self.gameConfig objectForKey:@"mazesize_command"]];

   294 

   295 				// theme info

   296 				[self sendToEngine:[self.gameConfig objectForKey:@"theme_command"]];

   297 				

   298                 // scheme (returns initial health)

   299                 NSInteger health = [self provideScheme:[self.gameConfig objectForKey:@"scheme"]];

   300                 

   301                 NSArray *teamsConfig = [self.gameConfig objectForKey:@"teams_list"];

   302                 for (NSDictionary *teamData in teamsConfig) {

   303                     [self provideTeamData:[teamData objectForKey:@"team"] 

   304                                   forHogs:[[teamData objectForKey:@"number"] intValue]

   305                                withHealth:health

   306                                   ofColor:[teamData objectForKey:@"color"]];

   307                 }

   308                 

   309                 [self provideAmmoData:@"Default.plist" forPlayingTeams:[teamsConfig count]];

   310                 

   311                 clientQuit = NO;

   312 			} else {

   313 				DLog(@"wrong message or client closed connection");

   314 				clientQuit = YES;

   315 			}

   316 			

   317 			while (!clientQuit){

   318 				msgSize = 0;

   319 				memset(buffer, 0, BUFFER_SIZE);

   320 				memset(string, 0, BUFFER_SIZE);

   321 				if (SDLNet_TCP_Recv(csd, &msgSize, sizeof(uint8_t)) <= 0)

   322 					clientQuit = YES;

   323 				if (SDLNet_TCP_Recv(csd, buffer, msgSize) <=0)

   324 					clientQuit = YES;

   325 				

   326 				gameTicks = SDLNet_Read16(&buffer[msgSize - 2]);

   327 				//DLog(@"engineProtocolThread - %d: received [%s]", gameTicks, buffer);

   328 				

   329 				switch (buffer[0]) {

   330 					case '?':

   331 						DLog(@"Ping? Pong!");

   332 						[self sendToEngine:@"!"];

   333 						break;

   334 					case 'E':

   335 						DLog(@"ERROR - last console line: [%s]", buffer);

   336 						clientQuit = YES;

   337 						break;

   338 					case 'e':

   339 						sscanf(buffer, "%*s %d", &eProto);

   340 						short int netProto = 0;

   341 						char *versionStr;

   342 						

   343                         HW_versionInfo(&netProto, &versionStr);

   344 						if (netProto == eProto) {

   345 							DLog(@"Setting protocol version %d (%s)", eProto, versionStr);

   346 						} else {

   347 							DLog(@"ERROR - wrong protocol number: [%s] - expecting %d", buffer, eProto);

   348 							clientQuit = YES;

   349 						}

   350                         

   351 						break;

   352 					case 'i':

   353 						switch (buffer[1]) {

   354 							case 'r':

   355 								NSLog(@"Winning team: %s", &buffer[2]);

   356 								break;

   357 							case 'k':

   358                                 NSLog(@"Best Hedgehog: %s", &buffer[2]);

   359 								break;

   360 						}

   361 						break;

   362 					default:

   363 						// empty packet or just statistics

   364 						break;

   365 					// missing case for exiting right away

   366 				}

   367 			}

   368 			DLog(@"Engine exited, closing server");

   369 			// wait a little to let the client close cleanly

   370 			[NSThread sleepForTimeInterval:2];

   371 			// Close the client socket

   372 			SDLNet_TCP_Close(csd);

   373 			serverQuit = YES;

   374 		}

   375 	}

   376 	

   377 	SDLNet_TCP_Close(sd);

   378 	SDLNet_Quit();

   379 

   380     [[NSFileManager defaultManager] removeItemAtPath:GAMECONFIG_FILE() error:NULL];

   381     

   382 	[pool release];

   383     //Invoking this method should be avoided as it does not give your thread a chance to clean up any resources it allocated during its execution.

   384     //[NSThread exit];

   385 }

   386 

   387 #pragma mark -

   388 #pragma mark Setting methods

   389 // returns an array of c-strings that are read by engine at startup

   390 -(const char **)getSettings {

   391 	NSString *ipcString = [[NSString alloc] initWithFormat:@"%d", ipcPort];

   392 	NSString *localeString = [[NSString alloc] initWithFormat:@"%@.txt", [[NSLocale currentLocale] objectForKey:NSLocaleLanguageCode]];

   393     CGRect screenBounds = [[UIScreen mainScreen] bounds];

   394     NSString *wSize = [[NSString alloc] initWithFormat:@"%d", (int) screenBounds.size.width];

   395     NSString *hSize = [[NSString alloc] initWithFormat:@"%d", (int) screenBounds.size.height];

   396 	const char **gameArgs = (const char**) malloc(sizeof(char *) * 9);

   397 

   398     /*

   399     size_t size;

   400     // Set 'oldp' parameter to NULL to get the size of the data returned so we can allocate appropriate amount of space

   401     sysctlbyname("hw.machine", NULL, &size, NULL, 0); 

   402     char *name = malloc(size);

   403     // Get the platform name

   404     sysctlbyname("hw.machine", name, &size, NULL, 0);

   405     NSString *machine = [[NSString alloc] initWithUTF8String:name];

   406     free(name);

   407     

   408    	const char **gameArgs = (const char**) malloc(sizeof(char*) * 9);

   409 

   410     // if the machine is less than iphone 3gs or less than ipod touch 3g use reduced graphics (land array)

   411     if ([machine hasPrefix:@"iPhone1"] || ([machine hasPrefix:@"iPod"] && ([machine hasSuffix:@"1,1"] || [machine hasSuffix:@"2,1"])))

   412         gameArgs[8] = "1";

   413     else

   414         gameArgs[8] = "0";

   415     [machine release];

   416     */

   417     

   418     // prevents using an empty nickname

   419     NSString *username;

   420     NSString *originalUsername = [self.systemSettings objectForKey:@"username"];

   421     if ([originalUsername length] == 0)

   422         username = [[NSString alloc] initWithFormat:@"MobileUser-%@",ipcString];

   423     else

   424         username = [[NSString alloc] initWithString:originalUsername];

   425     

   426 	gameArgs[0] = [username UTF8String];                                                        //UserNick

   427 	gameArgs[1] = [ipcString UTF8String];                                                       //ipcPort

   428 	gameArgs[2] = [[[self.systemSettings objectForKey:@"sound"] stringValue] UTF8String];       //isSoundEnabled

   429 	gameArgs[3] = [[[self.systemSettings objectForKey:@"music"] stringValue] UTF8String];       //isMusicEnabled

   430 	gameArgs[4] = [localeString UTF8String];                                                    //cLocaleFName

   431 	gameArgs[5] = [[[self.systemSettings objectForKey:@"alternate"] stringValue] UTF8String];	//cAltDamage

   432 	gameArgs[6] = [wSize UTF8String];                                                           //cScreenHeight

   433     gameArgs[7] = [hSize UTF8String];                                                           //cScreenWidth

   434     gameArgs[8] = NULL;                                                                         //recordFileName

   435     

   436     [wSize release];

   437     [hSize release];

   438 	[localeString release];

   439 	[ipcString release];

   440     [username release];

   441 	return gameArgs;

   442 }

   443 

   444 

   445 @end