1 //

     2 //  MapConfigViewController.m

     3 //  HedgewarsMobile

     4 //

     5 //  Created by Vittorio on 22/04/10.

     6 //  Copyright 2010 __MyCompanyName__. All rights reserved.

     7 //

     8 

     9 #import "MapConfigViewController.h"

    10 #import "PascalImports.h"

    11 #import "CommodityFunctions.h"

    12 #import "UIImageExtra.h"

    13 #import "SDL_net.h"

    14 #import <pthread.h>

    15 

    16 #define INDICATOR_TAG 7654

    17 

    18 @implementation MapConfigViewController

    19 @synthesize previewButton, maxHogs, seedCommand, templateFilterCommand, mapGenCommand, mazeSizeCommand, themeCommand,

    20             tableView, maxLabel, sizeLabel, segmentedControl, slider, lastIndexPath, themeArray, mapArray, busy;

    21 

    22 

    23 -(BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

    24     return rotationManager(interfaceOrientation);

    25 }

    26 

    27 #pragma mark -

    28 #pragma mark Preview Handling

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

    30 	unsigned char length = [string length];

    31 	

    32 	SDLNet_TCP_Send(csd, &length , 1);

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

    34 }

    35 

    36 -(const uint8_t *)engineProtocol:(NSInteger) port {

    37 	IPaddress ip;

    38 	BOOL serverQuit = NO;

    39     static uint8_t map[128*32];

    40     

    41 	if (SDLNet_Init() < 0) {

    42 		NSLog(@"SDLNet_Init: %s", SDLNet_GetError());

    43         serverQuit = YES;

    44 	}

    45 	

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

    47 	if (SDLNet_ResolveHost(&ip, NULL, port) < 0) {

    48 		NSLog(@"SDLNet_ResolveHost: %s\n", SDLNet_GetError());

    49         serverQuit = YES;

    50 	}

    51 	

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

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

    54 		NSLog(@"SDLNet_TCP_Open: %s %\n", SDLNet_GetError(), port);

    55         serverQuit = YES;

    56 	}

    57 	

    58     // launch the preview here so that we're sure the tcp channel is open

    59     pthread_t thread_id;

    60     pthread_create(&thread_id, NULL, (void *)GenLandPreview, (void *)port);

    61     pthread_detach(thread_id);

    62     

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

    64 	while (!serverQuit) {

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

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

    67 		csd = SDLNet_TCP_Accept(sd);

    68 		if (NULL != csd) {			

    69 			DLog(@"Client found");

    70             

    71             [self sendToEngine:self.seedCommand];

    72             [self sendToEngine:self.templateFilterCommand];

    73             [self sendToEngine:self.mapGenCommand];

    74             [self sendToEngine:self.mazeSizeCommand];

    75             [self sendToEngine:@"!"];

    76                 

    77             memset(map, 0, 128*32);

    78             SDLNet_TCP_Recv(csd, map, 128*32);

    79             SDLNet_TCP_Recv(csd, &maxHogs, sizeof(uint8_t));

    80 

    81 			SDLNet_TCP_Close(csd);

    82 			serverQuit = YES;

    83 		}

    84 	}

    85 	

    86 	SDLNet_TCP_Close(sd);

    87 	SDLNet_Quit();

    88     return map;

    89 }

    90 

    91 -(void) drawingThread {

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

    93     

    94     // select the port for IPC and launch the preview generation through engineProtocol:

    95     int port = randomPort();

    96     const uint8_t *map = [self engineProtocol:port];

    97     uint8_t mapExp[128*32*8];

    98 

    99     // draw the buffer (1 pixel per component, 0= transparent 1= color)

   100     int k = 0;

   101     for (int i = 0; i < 32*128; i++) {

   102         unsigned char byte = map[i];

   103         for (int j = 0; j < 8; j++) {

   104             // select the color based on the leftmost bit

   105             if ((byte & 0x80) != 0)

   106                 mapExp[k] = 100;

   107             else

   108                 mapExp[k] = 255;

   109             // shift to next bit

   110             byte <<= 1;

   111             k++;

   112         }

   113     }

   114     CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceGray();

   115     CGContextRef bitmapImage = CGBitmapContextCreate(mapExp, 256, 128, 8, 256, colorspace, kCGImageAlphaNone);

   116     CGColorSpaceRelease(colorspace);

   117     

   118     CGImageRef previewCGImage = CGBitmapContextCreateImage(bitmapImage);

   119     UIImage *previewImage = [[UIImage alloc] initWithCGImage:previewCGImage];

   120     CGImageRelease(previewCGImage);

   121 

   122     // set the preview image (autoreleased) in the button and the maxhog label on the main thread to prevent a leak

   123     [self performSelectorOnMainThread:@selector(setButtonImage:) withObject:[[previewImage retain] makeRoundCornersOfSize:CGSizeMake(12, 12)] waitUntilDone:NO];

   124     [self performSelectorOnMainThread:@selector(setLabelText:) withObject:[NSString stringWithFormat:@"%d", maxHogs] waitUntilDone:NO];

   125     

   126     // restore functionality of button and remove the spinning wheel on the main thread to prevent a leak

   127     [self performSelectorOnMainThread:@selector(turnOnWidgets) withObject:nil waitUntilDone:NO];

   128     

   129     [pool release];

   130     //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.

   131     //[NSThread exit];

   132 

   133     /*

   134     // http://developer.apple.com/mac/library/qa/qa2001/qa1037.html

   135     UIGraphicsBeginImageContext(CGSizeMake(256,128));      

   136     CGContextRef context = UIGraphicsGetCurrentContext();       

   137     UIGraphicsPushContext(context);  

   138 

   139     CGContextSetRGBFillColor(context, 0.5, 0.5, 0.7, 1.0);

   140     CGContextFillRect(context,CGRectMake(xc,yc,1,1));

   141     

   142     UIGraphicsPopContext();

   143     UIImage *previewImage = UIGraphicsGetImageFromCurrentImageContext();

   144     UIGraphicsEndImageContext();

   145     */

   146 }

   147 

   148 -(IBAction) updatePreview {

   149     // don't generate a new preview while it's already generating one

   150     if (busy)

   151         return;

   152     

   153     // generate a seed

   154     CFUUIDRef uuid = CFUUIDCreate(kCFAllocatorDefault);

   155     NSString *seed = (NSString *)CFUUIDCreateString(kCFAllocatorDefault, uuid);

   156     CFRelease(uuid);

   157     NSString *seedCmd = [[NSString alloc] initWithFormat:@"eseed {%@}", seed];

   158     [seed release];

   159     self.seedCommand = seedCmd;

   160     [seedCmd release];

   161     

   162     NSIndexPath *theIndex;

   163     if (segmentedControl.selectedSegmentIndex != 1) {

   164         // prevent other events and add an activity while the preview is beign generated

   165         [self turnOffWidgets];

   166         

   167         // remove the current preview

   168         [self.previewButton setImage:nil forState:UIControlStateNormal];

   169         

   170         // add a very nice spinning wheel

   171         UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc] 

   172                                               initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];

   173         indicator.center = CGPointMake(previewButton.bounds.size.width / 2, previewButton.bounds.size.height / 2);

   174         indicator.tag = INDICATOR_TAG;

   175         [indicator startAnimating];

   176         [self.previewButton addSubview:indicator];

   177         [indicator release];

   178         

   179         // let's draw in a separate thread so the gui can work; at the end it restore other widgets

   180         [NSThread detachNewThreadSelector:@selector(drawingThread) toTarget:self withObject:nil];

   181     

   182         theIndex = [NSIndexPath indexPathForRow:(random()%[self.themeArray count]) inSection:0];

   183     } else {

   184         theIndex = [NSIndexPath indexPathForRow:(random()%[self.mapArray count]) inSection:0];

   185     }

   186     [self.tableView reloadData];

   187     [self tableView:self.tableView didSelectRowAtIndexPath:theIndex];

   188     [self.tableView scrollToRowAtIndexPath:theIndex atScrollPosition:UITableViewScrollPositionNone animated:YES];

   189 }

   190 

   191 -(void) updatePreviewWithMap:(NSInteger) index {

   192     // change the preview button

   193     NSString *fileImage = [[NSString alloc] initWithFormat:@"%@/%@/preview.png", MAPS_DIRECTORY(),[self.mapArray objectAtIndex:index]];

   194     UIImage *image = [[UIImage alloc] initWithContentsOfFile:fileImage];

   195     [fileImage release];

   196     [self.previewButton setImage:[image makeRoundCornersOfSize:CGSizeMake(12, 12)] forState:UIControlStateNormal];

   197 

   198     // update label

   199     maxHogs = 18;

   200     NSString *fileCfg = [[NSString alloc] initWithFormat:@"%@/%@/map.cfg", MAPS_DIRECTORY(),[self.mapArray objectAtIndex:index]];

   201     NSString *contents = [[NSString alloc] initWithContentsOfFile:fileCfg encoding:NSUTF8StringEncoding error:NULL];

   202     [fileCfg release];

   203     NSArray *split = [contents componentsSeparatedByString:@"\n"];

   204 

   205     // if the number is not set we keep 18 standard; 

   206     // sometimes it's not set but there are trailing characters, we get around them with the second equation

   207     if ([split count] > 1 && [[split objectAtIndex:1] intValue] > 0)

   208         maxHogs = [[split objectAtIndex:1] intValue];

   209     [contents release];

   210     NSString *max = [[NSString alloc] initWithFormat:@"%d",maxHogs];

   211     self.maxLabel.text = max;

   212     [max release];

   213 }

   214 

   215 -(void) turnOffWidgets {

   216     busy = YES;

   217     self.previewButton.alpha = 0.5f;

   218     self.previewButton.enabled = NO;

   219     self.maxLabel.text = @"...";

   220     self.segmentedControl.enabled = NO;

   221     self.slider.enabled = NO;

   222 }

   223 

   224 -(void) turnOnWidgets {

   225     self.previewButton.alpha = 1.0f;

   226     self.previewButton.enabled = YES;

   227     self.segmentedControl.enabled = YES;

   228     self.slider.enabled = YES;

   229     busy = NO;

   230     

   231     UIActivityIndicatorView *indicator = (UIActivityIndicatorView *)[self.previewButton viewWithTag:INDICATOR_TAG];

   232     if (indicator) {

   233         [indicator stopAnimating];

   234         [indicator removeFromSuperview];

   235     }

   236 }

   237  

   238 -(void) setLabelText:(NSString *)str {

   239     self.maxLabel.text = str;

   240 }

   241 

   242 -(void) setButtonImage:(UIImage *)img {

   243     [self.previewButton setBackgroundImage:img forState:UIControlStateNormal];

   244 }

   245 

   246 -(void) restoreBackgroundImage {

   247     // white rounded rectangle as background image for previewButton

   248     UIGraphicsBeginImageContext(CGSizeMake(256,128));      

   249     CGContextRef context = UIGraphicsGetCurrentContext();       

   250     UIGraphicsPushContext(context);  

   251 

   252     CGContextSetRGBFillColor(context, 1.0, 1.0, 1.0, 1.0);

   253     CGContextFillRect(context,CGRectMake(0,0,256,128));

   254     

   255     UIGraphicsPopContext();

   256     UIImage *bkgImg = UIGraphicsGetImageFromCurrentImageContext();

   257     UIGraphicsEndImageContext();

   258     [self.previewButton setBackgroundImage:[[bkgImg retain] makeRoundCornersOfSize:CGSizeMake(12, 12)] forState:UIControlStateNormal];

   259 }

   260 

   261 #pragma mark -

   262 #pragma mark Table view data source

   263 -(NSInteger) numberOfSectionsInTableView:(UITableView *)tableView {

   264     return 1;

   265 }

   266 

   267 -(NSInteger) tableView:(UITableView *)aTableView numberOfRowsInSection:(NSInteger) section {

   268     if (self.segmentedControl.selectedSegmentIndex != 1)

   269         return [themeArray count];

   270     else

   271         return [mapArray count];

   272 }

   273 

   274 -(UITableViewCell *)tableView:(UITableView *)aTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

   275     static NSString *CellIdentifier = @"Cell";

   276     NSInteger row = [indexPath row];

   277     

   278     UITableViewCell *cell = [aTableView dequeueReusableCellWithIdentifier:CellIdentifier];

   279     if (cell == nil) 

   280         cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];

   281     

   282     if (self.segmentedControl.selectedSegmentIndex != 1) {

   283         // the % prevents a strange bug that occurs sporadically

   284         NSString *themeName = [self.themeArray objectAtIndex:row % [self.themeArray count]];

   285         cell.textLabel.text = themeName;

   286         UIImage *image = [[UIImage alloc] initWithContentsOfFile:[NSString stringWithFormat:@"%@/%@/icon.png",THEMES_DIRECTORY(),themeName]];

   287         cell.imageView.image = image;

   288         [image release];

   289     } else {

   290         cell.textLabel.text = [self.mapArray objectAtIndex:row];

   291         cell.imageView.image = nil;

   292     }

   293     

   294     if (row == [self.lastIndexPath row]) 

   295         cell.accessoryType = UITableViewCellAccessoryCheckmark;

   296     else

   297         cell.accessoryType = UITableViewCellAccessoryNone;

   298 

   299     return cell;

   300 }

   301 

   302 

   303 #pragma mark -

   304 #pragma mark Table view delegate

   305 -(void) tableView:(UITableView *)aTableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

   306     int newRow = [indexPath row];

   307     int oldRow = (lastIndexPath != nil) ? [lastIndexPath row] : -1;

   308     

   309     if (newRow != oldRow) {

   310         if (self.segmentedControl.selectedSegmentIndex != 1) {

   311             NSString *theme = [self.themeArray objectAtIndex:newRow];

   312             self.themeCommand =  [NSString stringWithFormat:@"etheme %@", theme];

   313         } else

   314             [self updatePreviewWithMap:newRow];

   315 

   316         UITableViewCell *newCell = [aTableView cellForRowAtIndexPath:indexPath]; 

   317         newCell.accessoryType = UITableViewCellAccessoryCheckmark;

   318         UITableViewCell *oldCell = [aTableView cellForRowAtIndexPath:self.lastIndexPath];

   319         oldCell.accessoryType = UITableViewCellAccessoryNone;

   320 

   321         self.lastIndexPath = indexPath;

   322         [aTableView selectRowAtIndexPath:indexPath animated:YES scrollPosition:UITableViewScrollPositionNone];

   323     }

   324     [aTableView deselectRowAtIndexPath:indexPath animated:YES];

   325 }

   326 

   327 #pragma mark -

   328 #pragma mark slider & segmentedControl

   329 // this updates the label and the command keys when the slider is moved, depending of the selection in segmentedControl

   330 // no methods are called by this routine and you can pass nil to it

   331 -(IBAction) sliderChanged:(id) sender {

   332     NSString *labelText;

   333     NSString *templateCommand;

   334     NSString *mazeCommand;

   335     

   336     switch ((int)(self.slider.value*100)) {

   337         case 0:

   338             if (self.segmentedControl.selectedSegmentIndex == 0) {

   339                 labelText = NSLocalizedString(@"Wacky",@"");

   340             } else {

   341                 labelText = NSLocalizedString(@"Large Floating Islands",@"");

   342             }

   343             templateCommand = @"e$template_filter 5";

   344             mazeCommand = @"e$maze_size 5";

   345             break;

   346         case 1:

   347             if (self.segmentedControl.selectedSegmentIndex == 0) {

   348                 labelText = NSLocalizedString(@"Cavern",@"");

   349             } else {

   350                 labelText = NSLocalizedString(@"Medium Floating Islands",@"");

   351             }

   352             templateCommand = @"e$template_filter 4";

   353             mazeCommand = @"e$maze_size 4";

   354             break;

   355         case 2:

   356             if (self.segmentedControl.selectedSegmentIndex == 0) {

   357                 labelText = NSLocalizedString(@"Small",@"");

   358             } else {

   359                 labelText = NSLocalizedString(@"Small Floating Islands",@"");

   360             }

   361             templateCommand = @"e$template_filter 1";

   362             mazeCommand = @"e$maze_size 3";

   363             break;

   364         case 3:

   365             if (self.segmentedControl.selectedSegmentIndex == 0) {

   366                 labelText = NSLocalizedString(@"Medium",@"");

   367             } else {

   368                 labelText = NSLocalizedString(@"Large Tunnels",@"");

   369             }

   370             templateCommand = @"e$template_filter 2";

   371             mazeCommand = @"e$maze_size 2";

   372             break;

   373         case 4:

   374             if (self.segmentedControl.selectedSegmentIndex == 0) {

   375                 labelText = NSLocalizedString(@"Large",@"");

   376             } else {

   377                 labelText = NSLocalizedString(@"Medium Tunnels",@"");

   378             }

   379             templateCommand = @"e$template_filter 3";

   380             mazeCommand = @"e$maze_size 1";

   381             break;

   382         case 5:

   383             if (self.segmentedControl.selectedSegmentIndex == 0) {

   384                 labelText = NSLocalizedString(@"All",@"");

   385             } else {

   386                 labelText = NSLocalizedString(@"Small Tunnels",@"");

   387             }

   388             templateCommand = @"e$template_filter 0";

   389             mazeCommand = @"e$maze_size 0";

   390             break;

   391         default:

   392             labelText = nil;

   393             templateCommand = nil;

   394             mazeCommand = nil;

   395             break;

   396     }

   397     

   398     self.sizeLabel.text = labelText;

   399     self.templateFilterCommand = templateCommand;

   400     self.mazeSizeCommand = mazeCommand;

   401 }

   402 

   403 // update preview (if not busy and if its value really changed) as soon as the user lifts its finger up

   404 -(IBAction) sliderEndedChanging:(id) sender {

   405     int num = (int) (self.slider.value * 100);

   406     if (oldValue != num) {

   407         [self updatePreview];

   408         oldValue = num;

   409     }

   410 }

   411 

   412 // perform actions based on the activated section, then call updatePreview to visually update the selection 

   413 // updatePreview will call didSelectRowAtIndexPath which will call the right update routine)

   414 // and if necessary update the table with a slide animation

   415 -(IBAction) segmentedControlChanged:(id) sender {

   416     NSString *mapgen;

   417     NSInteger newPage = self.segmentedControl.selectedSegmentIndex;

   418     

   419     switch (newPage) {

   420         case 0: // Random

   421             mapgen = @"e$mapgen 0";

   422             [self sliderChanged:nil];

   423             self.slider.enabled = YES;

   424             break;

   425             

   426         case 1: // Map

   427             mapgen = @"e$mapgen 0";

   428             self.slider.enabled = NO;

   429             self.sizeLabel.text = @".";

   430             [self restoreBackgroundImage];

   431             break;

   432             

   433         case 2: // Maze

   434             mapgen = @"e$mapgen 1";

   435             [self sliderChanged:nil];

   436             self.slider.enabled = YES;

   437             break;

   438         

   439         default:

   440             mapgen = nil;

   441             break;

   442     }

   443     self.mapGenCommand = mapgen;

   444     [self updatePreview];

   445     

   446     // nice animation for updating the table when appropriate (on iphone)

   447     if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)

   448         if (((oldPage == 0 || oldPage == 2) && newPage == 1) ||

   449             (oldPage == 1 && (newPage == 0 || newPage == 2))) {

   450             [UIView beginAnimations:@"moving out table" context:NULL];

   451             self.tableView.frame = CGRectMake(480, 0, 185, 276);

   452             [UIView commitAnimations];

   453             [self performSelector:@selector(moveTable) withObject:nil afterDelay:0.2];

   454         }

   455     oldPage = newPage;

   456 }

   457 

   458 // update data when table is not visible and then show it

   459 -(void) moveTable {

   460     [self.tableView reloadData];

   461     

   462     [UIView beginAnimations:@"moving in table" context:NULL];

   463     self.tableView.frame = CGRectMake(295, 0, 185, 276);

   464     [UIView commitAnimations];

   465 }

   466 

   467 #pragma mark -

   468 #pragma mark view management

   469 -(void) viewDidLoad {

   470     [super viewDidLoad];

   471     

   472     srandom(time(NULL));

   473     

   474     CGSize screenSize = [[UIScreen mainScreen] bounds].size;

   475     self.view.frame = CGRectMake(0, 0, screenSize.height, screenSize.width - 44);

   476 

   477     // themes.cfg contains all the user-selectable themes

   478     NSString *string = [[NSString alloc] initWithContentsOfFile:[THEMES_DIRECTORY() stringByAppendingString:@"/themes.cfg"]

   479                                                        encoding:NSUTF8StringEncoding 

   480                                                           error:NULL];

   481     NSMutableArray *array = [[NSMutableArray alloc] initWithArray:[string componentsSeparatedByString:@"\n"]];

   482     [string release];

   483     // remove a trailing "" element

   484     [array removeLastObject];

   485     self.themeArray = array;

   486     [array release];

   487     self.mapArray = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:MAPS_DIRECTORY() error:NULL];

   488 

   489     self.tableView.rowHeight = 42;

   490     busy = NO;

   491     

   492     // draw a white background

   493     [self restoreBackgroundImage];

   494     

   495     // initialize some "default" values

   496     self.sizeLabel.text = NSLocalizedString(@"All",@"");

   497     self.slider.value = 0.05f;

   498     self.segmentedControl.selectedSegmentIndex = 0;

   499 

   500     self.templateFilterCommand = @"e$template_filter 0";

   501     self.mazeSizeCommand = @"e$maze_size 0";

   502     self.mapGenCommand = @"e$mapgen 0";

   503     self.lastIndexPath = [NSIndexPath indexPathForRow:0 inSection:0];

   504     

   505     oldValue = 5;

   506     oldPage = 0;

   507 }

   508 

   509 -(void) viewDidAppear:(BOOL) animated {

   510     [super viewDidAppear:animated];

   511     [self updatePreview];

   512 }

   513 

   514 #pragma mark -

   515 #pragma mark memory

   516 -(void) didReceiveMemoryWarning {

   517     [super didReceiveMemoryWarning];

   518 }

   519 

   520 -(void) viewDidUnload {

   521     self.previewButton = nil;

   522     self.seedCommand = nil;

   523     self.templateFilterCommand = nil;

   524     self.mapGenCommand = nil;

   525     self.mazeSizeCommand = nil;

   526     self.themeCommand = nil;

   527     

   528     self.previewButton = nil;

   529     self.tableView = nil;

   530     self.maxLabel = nil;

   531     self.sizeLabel = nil;

   532     self.segmentedControl = nil;

   533     self.slider = nil;

   534     

   535     self.lastIndexPath = nil;

   536     self.themeArray = nil;

   537     self.mapArray = nil;

   538     

   539     [super viewDidUnload];

   540     MSG_DIDUNLOAD();

   541 }

   542 

   543 -(void) dealloc {

   544     [seedCommand release];

   545     [templateFilterCommand release];

   546     [mapGenCommand release];

   547     [mazeSizeCommand release];

   548     [themeCommand release];

   549     

   550     [previewButton release];

   551     [tableView release];

   552     [maxLabel release];

   553     [sizeLabel release];

   554     [segmentedControl release];

   555     [slider release];

   556     

   557     [lastIndexPath release];

   558     [themeArray release];

   559     [mapArray release];

   560     

   561     [super dealloc];

   562 }

   563 

   564 

   565 @end