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     previewCGImage = nil;

   122 

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

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

   125     [previewImage release];

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

   127     

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

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

   130     

   131     [pool release];

   132     //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.

   133     //[NSThread exit];

   134 

   135     /*

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

   137     UIGraphicsBeginImageContext(CGSizeMake(256,128));      

   138     CGContextRef context = UIGraphicsGetCurrentContext();       

   139     UIGraphicsPushContext(context);  

   140 

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

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

   143     

   144     UIGraphicsPopContext();

   145     UIImage *previewImage = UIGraphicsGetImageFromCurrentImageContext();

   146     UIGraphicsEndImageContext();

   147     */

   148 }

   149 

   150 -(IBAction) updatePreview {

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

   152     if (busy)

   153         return;

   154     

   155     // generate a seed

   156     CFUUIDRef uuid = CFUUIDCreate(kCFAllocatorDefault);

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

   158     CFRelease(uuid);

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

   160     [seed release];

   161     self.seedCommand = seedCmd;

   162     [seedCmd release];

   163     

   164     NSIndexPath *theIndex;

   165     if (segmentedControl.selectedSegmentIndex != 1) {

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

   167         [self turnOffWidgets];

   168         

   169         // remove the current preview

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

   171         

   172         // add a very nice spinning wheel

   173         UIActivityIndicatorView *indicator = [[UIActivityIndicatorView alloc] 

   174                                               initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];

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

   176         indicator.tag = INDICATOR_TAG;

   177         [indicator startAnimating];

   178         [self.previewButton addSubview:indicator];

   179         [indicator release];

   180         

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

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

   183     

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

   185     } else {

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

   187     }

   188     [self.tableView reloadData];

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

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

   191 }

   192 

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

   194     // change the preview button

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

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

   197     [fileImage release];

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

   199     [image release];

   200     

   201     // update label

   202     maxHogs = 18;

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

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

   205     [fileCfg release];

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

   207 

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

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

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

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

   212     [contents release];

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

   214     self.maxLabel.text = max;

   215     [max release];

   216 }

   217 

   218 -(void) turnOffWidgets {

   219     busy = YES;

   220     self.previewButton.alpha = 0.5f;

   221     self.previewButton.enabled = NO;

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

   223     self.segmentedControl.enabled = NO;

   224     self.slider.enabled = NO;

   225 }

   226 

   227 -(void) turnOnWidgets {

   228     self.previewButton.alpha = 1.0f;

   229     self.previewButton.enabled = YES;

   230     self.segmentedControl.enabled = YES;

   231     self.slider.enabled = YES;

   232     busy = NO;

   233     

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

   235     if (indicator) {

   236         [indicator stopAnimating];

   237         [indicator removeFromSuperview];

   238     }

   239 }

   240  

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

   242     self.maxLabel.text = str;

   243 }

   244 

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

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

   247 }

   248 

   249 -(void) restoreBackgroundImage {

   250     // white rounded rectangle as background image for previewButton

   251     UIGraphicsBeginImageContext(CGSizeMake(256,128));      

   252     CGContextRef context = UIGraphicsGetCurrentContext();       

   253     UIGraphicsPushContext(context);  

   254 

   255     CGContextSetRGBFillColor(context, 1.0, 1.0, 1.0, 1.0);

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

   257     

   258     UIGraphicsPopContext();

   259     UIImage *bkgImg = UIGraphicsGetImageFromCurrentImageContext();

   260     UIGraphicsEndImageContext();

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

   262 }

   263 

   264 #pragma mark -

   265 #pragma mark Table view data source

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

   267     return 1;

   268 }

   269 

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

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

   272         return [themeArray count];

   273     else

   274         return [mapArray count];

   275 }

   276 

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

   278     static NSString *CellIdentifier = @"Cell";

   279     NSInteger row = [indexPath row];

   280     

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

   282     if (cell == nil) 

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

   284     

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

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

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

   288         cell.textLabel.text = themeName;

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

   290         cell.imageView.image = image;

   291         [image release];

   292     } else {

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

   294         cell.imageView.image = nil;

   295     }

   296     

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

   298         cell.accessoryType = UITableViewCellAccessoryCheckmark;

   299     else

   300         cell.accessoryType = UITableViewCellAccessoryNone;

   301 

   302     return cell;

   303 }

   304 

   305 

   306 #pragma mark -

   307 #pragma mark Table view delegate

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

   309     int newRow = [indexPath row];

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

   311     

   312     if (newRow != oldRow) {

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

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

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

   316         } else

   317             [self updatePreviewWithMap:newRow];

   318 

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

   320         newCell.accessoryType = UITableViewCellAccessoryCheckmark;

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

   322         oldCell.accessoryType = UITableViewCellAccessoryNone;

   323 

   324         self.lastIndexPath = indexPath;

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

   326     }

   327     [aTableView deselectRowAtIndexPath:indexPath animated:YES];

   328 }

   329 

   330 #pragma mark -

   331 #pragma mark slider & segmentedControl

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

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

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

   335     NSString *labelText;

   336     NSString *templateCommand;

   337     NSString *mazeCommand;

   338     

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

   340         case 0:

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

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

   343             } else {

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

   345             }

   346             templateCommand = @"e$template_filter 5";

   347             mazeCommand = @"e$maze_size 5";

   348             break;

   349         case 1:

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

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

   352             } else {

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

   354             }

   355             templateCommand = @"e$template_filter 4";

   356             mazeCommand = @"e$maze_size 4";

   357             break;

   358         case 2:

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

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

   361             } else {

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

   363             }

   364             templateCommand = @"e$template_filter 1";

   365             mazeCommand = @"e$maze_size 3";

   366             break;

   367         case 3:

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

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

   370             } else {

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

   372             }

   373             templateCommand = @"e$template_filter 2";

   374             mazeCommand = @"e$maze_size 2";

   375             break;

   376         case 4:

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

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

   379             } else {

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

   381             }

   382             templateCommand = @"e$template_filter 3";

   383             mazeCommand = @"e$maze_size 1";

   384             break;

   385         case 5:

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

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

   388             } else {

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

   390             }

   391             templateCommand = @"e$template_filter 0";

   392             mazeCommand = @"e$maze_size 0";

   393             break;

   394         default:

   395             labelText = nil;

   396             templateCommand = nil;

   397             mazeCommand = nil;

   398             break;

   399     }

   400     

   401     self.sizeLabel.text = labelText;

   402     self.templateFilterCommand = templateCommand;

   403     self.mazeSizeCommand = mazeCommand;

   404 }

   405 

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

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

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

   409     if (oldValue != num) {

   410         [self updatePreview];

   411         oldValue = num;

   412     }

   413 }

   414 

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

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

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

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

   419     NSString *mapgen;

   420     NSInteger newPage = self.segmentedControl.selectedSegmentIndex;

   421     

   422     switch (newPage) {

   423         case 0: // Random

   424             mapgen = @"e$mapgen 0";

   425             [self sliderChanged:nil];

   426             self.slider.enabled = YES;

   427             break;

   428             

   429         case 1: // Map

   430             mapgen = @"e$mapgen 0";

   431             self.slider.enabled = NO;

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

   433             [self restoreBackgroundImage];

   434             break;

   435             

   436         case 2: // Maze

   437             mapgen = @"e$mapgen 1";

   438             [self sliderChanged:nil];

   439             self.slider.enabled = YES;

   440             break;

   441         

   442         default:

   443             mapgen = nil;

   444             break;

   445     }

   446     self.mapGenCommand = mapgen;

   447     [self updatePreview];

   448     

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

   450     if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)

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

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

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

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

   455             [UIView commitAnimations];

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

   457         }

   458     oldPage = newPage;

   459 }

   460 

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

   462 -(void) moveTable {

   463     [self.tableView reloadData];

   464     

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

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

   467     [UIView commitAnimations];

   468 }

   469 

   470 #pragma mark -

   471 #pragma mark view management

   472 -(void) viewDidLoad {

   473     [super viewDidLoad];

   474     

   475     srandom(time(NULL));

   476     

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

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

   479 

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

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

   482                                                        encoding:NSUTF8StringEncoding 

   483                                                           error:NULL];

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

   485     [string release];

   486     // remove a trailing "" element

   487     [array removeLastObject];

   488     self.themeArray = array;

   489     [array release];

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

   491 

   492     self.tableView.rowHeight = 42;

   493     busy = NO;

   494     

   495     // draw a white background

   496     [self restoreBackgroundImage];

   497     

   498     // initialize some "default" values

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

   500     self.slider.value = 0.05f;

   501     self.segmentedControl.selectedSegmentIndex = 0;

   502 

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

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

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

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

   507     

   508     oldValue = 5;

   509     oldPage = 0;

   510 }

   511 

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

   513     [super viewDidAppear:animated];

   514     [self updatePreview];

   515 }

   516 

   517 #pragma mark -

   518 #pragma mark memory

   519 -(void) didReceiveMemoryWarning {

   520     [super didReceiveMemoryWarning];

   521 }

   522 

   523 -(void) viewDidUnload {

   524     self.previewButton = nil;

   525     self.seedCommand = nil;

   526     self.templateFilterCommand = nil;

   527     self.mapGenCommand = nil;

   528     self.mazeSizeCommand = nil;

   529     self.themeCommand = nil;

   530     

   531     self.previewButton = nil;

   532     self.tableView = nil;

   533     self.maxLabel = nil;

   534     self.sizeLabel = nil;

   535     self.segmentedControl = nil;

   536     self.slider = nil;

   537     

   538     self.lastIndexPath = nil;

   539     self.themeArray = nil;

   540     self.mapArray = nil;

   541     

   542     [super viewDidUnload];

   543     MSG_DIDUNLOAD();

   544 }

   545 

   546 -(void) dealloc {

   547     [seedCommand release];

   548     [templateFilterCommand release];

   549     [mapGenCommand release];

   550     [mazeSizeCommand release];

   551     [themeCommand release];

   552     

   553     [previewButton release];

   554     [tableView release];

   555     [maxLabel release];

   556     [sizeLabel release];

   557     [segmentedControl release];

   558     [slider release];

   559     

   560     [lastIndexPath release];

   561     [themeArray release];

   562     [mapArray release];

   563     

   564     [super dealloc];

   565 }

   566 

   567 

   568 @end