project_files/HedgewarsMobile/Classes/OverlayViewController.m
author koda
Wed, 07 Jul 2010 03:16:12 +0200
changeset 3628 2b4d878ba565
parent 3627 f1da1d8fb56c
child 3629 86212d2b116a
permissions -rw-r--r--
enable tooltips on ipad (todo: disable them on iphone)
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//
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//  overlayViewController.m
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//  HedgewarsMobile
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//
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//  Created by Vittorio on 16/03/10.
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//  Copyright 2010 __MyCompanyName__. All rights reserved.
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//
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#import "OverlayViewController.h"
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#import "SDL_uikitappdelegate.h"
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#import "PascalImports.h"
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#import "CGPointUtils.h"
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#import "SDL_mouse.h"
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#import "SDL_config_iphoneos.h"
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#import "PopoverMenuViewController.h"
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#import "CommodityFunctions.h"
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#define HIDING_TIME_DEFAULT [NSDate dateWithTimeIntervalSinceNow:2.7]
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#define HIDING_TIME_NEVER   [NSDate dateWithTimeIntervalSinceNow:10000]
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@implementation OverlayViewController
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@synthesize popoverController, popupMenu, writeChatTextField, spinningWheel;
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-(BOOL) shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation) interfaceOrientation {
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    return rotationManager(interfaceOrientation);
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}
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-(void) didRotate:(NSNotification *)notification {  
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    UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation];
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    CGRect rect = [[UIScreen mainScreen] bounds];
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    CGRect usefulRect = CGRectMake(0, 0, rect.size.width, rect.size.height);
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    UIView *sdlView = [[[UIApplication sharedApplication] keyWindow] viewWithTag:12345];
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    [UIView beginAnimations:@"rotation" context:NULL];
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    [UIView setAnimationDuration:0.8f];
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    [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
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    switch (orientation) {
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        case UIDeviceOrientationLandscapeLeft:
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            sdlView.transform = CGAffineTransformMakeRotation(degreesToRadian(0));
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            self.view.transform = CGAffineTransformMakeRotation(degreesToRadian(90));
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            [self chatDisappear];
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            HW_setLandscape(YES);
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            break;
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        case UIDeviceOrientationLandscapeRight:
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            sdlView.transform = CGAffineTransformMakeRotation(degreesToRadian(180));
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            self.view.transform = CGAffineTransformMakeRotation(degreesToRadian(-90));
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            [self chatDisappear];
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            HW_setLandscape(YES);
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            break;
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        /*
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        case UIDeviceOrientationPortrait:
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            if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
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                sdlView.transform = CGAffineTransformMakeRotation(degreesToRadian(270));
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                self.view.transform = CGAffineTransformMakeRotation(degreesToRadian(0));
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                [self chatAppear];
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                HW_setLandscape(NO);
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            }
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            break;
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        case UIDeviceOrientationPortraitUpsideDown:
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            if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
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                sdlView.transform = CGAffineTransformMakeRotation(degreesToRadian(90));
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                self.view.transform = CGAffineTransformMakeRotation(degreesToRadian(180));
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                [self chatAppear];
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                HW_setLandscape(NO);
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            }
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            break;
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        */
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        default:
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            break;
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    }
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    self.view.frame = usefulRect;
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    //sdlView.frame = usefulRect;
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    [UIView commitAnimations];
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}
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-(void) chatAppear {
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    /*
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    if (writeChatTextField == nil) {
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        writeChatTextField = [[UITextField alloc] initWithFrame:CGRectMake(0, 100, 768, [UIFont systemFontSize]+8)];
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        writeChatTextField.textColor = [UIColor whiteColor];
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        writeChatTextField.backgroundColor = [UIColor blueColor];
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        writeChatTextField.autocapitalizationType = UITextAutocapitalizationTypeNone;
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        writeChatTextField.autocorrectionType = UITextAutocorrectionTypeNo;
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        writeChatTextField.enablesReturnKeyAutomatically = NO;
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        writeChatTextField.keyboardAppearance = UIKeyboardAppearanceDefault;
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        writeChatTextField.keyboardType = UIKeyboardTypeDefault;
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        writeChatTextField.returnKeyType = UIReturnKeyDefault;
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        writeChatTextField.secureTextEntry = NO;    
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        [self.view addSubview:writeChatTextField];
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    }
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    writeChatTextField.alpha = 1;
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    [self activateOverlay];
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    [dimTimer setFireDate:HIDING_TIME_NEVER];
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    */
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}
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-(void) chatDisappear {
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    /*
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    writeChatTextField.alpha = 0;
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    [writeChatTextField resignFirstResponder];
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    [dimTimer setFireDate:HIDING_TIME_DEFAULT];
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    */
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}
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#pragma mark -
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#pragma mark View Management
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-(void) viewDidLoad {
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    isPopoverVisible = NO;
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    singleton = self.spinningWheel;
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    canDim = NO;
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    self.view.alpha = 0;
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    self.view.center = CGPointMake(self.view.frame.size.height/2.0, self.view.frame.size.width/2.0);
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    // set initial orientation
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    UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation];
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    UIView *sdlView = [[[UIApplication sharedApplication] keyWindow] viewWithTag:12345];
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    switch (orientation) {
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        case UIDeviceOrientationLandscapeLeft:
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            sdlView.transform = CGAffineTransformMakeRotation(degreesToRadian(0));
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            self.view.transform = CGAffineTransformMakeRotation(degreesToRadian(90));
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            break;
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        case UIDeviceOrientationLandscapeRight:
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            sdlView.transform = CGAffineTransformMakeRotation(degreesToRadian(180));
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            self.view.transform = CGAffineTransformMakeRotation(degreesToRadian(-90));
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            break;
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    }
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    CGRect rect = [[UIScreen mainScreen] bounds];
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    self.view.frame = CGRectMake(0, 0, rect.size.width, rect.size.height);
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    dimTimer = [[NSTimer alloc] initWithFireDate:[NSDate dateWithTimeIntervalSinceNow:6]
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                                        interval:1000
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                                          target:self
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                                        selector:@selector(dimOverlay)
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                                        userInfo:nil
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                                         repeats:YES];
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    // add timer too runloop, otherwise it doesn't work
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    [[NSRunLoop currentRunLoop] addTimer:dimTimer forMode:NSDefaultRunLoopMode];
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    [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];   
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    [[NSNotificationCenter defaultCenter] addObserver:self
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                                             selector:@selector(didRotate:)
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                                                 name:UIDeviceOrientationDidChangeNotification
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                                               object:nil];
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    [UIView beginAnimations:@"showing overlay" context:NULL];
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    [UIView setAnimationDuration:1];
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    self.view.alpha = 1;
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    [UIView commitAnimations];
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}
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/* these are causing problems at reloading so let's remove 'em
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-(void) viewDidUnload {
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    [popoverController dismissPopoverAnimated:NO];
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    [dimTimer invalidate];
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    self.writeChatTextField = nil;
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    self.popoverController = nil;
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    self.popupMenu = nil;
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    self.spinningWheel = nil;
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    [super viewDidUnload];
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    MSG_DIDUNLOAD();
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}
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-(void) didReceiveMemoryWarning {
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    // Releases the view if it doesn't have a superview.
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    [super didReceiveMemoryWarning];
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    // Release any cached data, images, etc that aren't in use.
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    if (popupMenu.view.superview == nil) 
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        popupMenu = nil;
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    MSG_MEMCLEAN();
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}
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*/
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-(void) dealloc {
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    [writeChatTextField release];
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    [popupMenu release];
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    [popoverController release];
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    // dimTimer is autoreleased
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    [spinningWheel release];
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    [super dealloc];
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}
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#pragma mark -
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#pragma mark Overlay actions and members
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// nice transition for dimming, should be called only by the timer himself
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-(void) dimOverlay {
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    if (canDim) {
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        [UIView beginAnimations:@"overlay dim" context:NULL];
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        [UIView setAnimationDuration:0.6];
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        self.view.alpha = 0.2;
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        [UIView commitAnimations];
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    }
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}
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// set the overlay visible and put off the timer for enough time
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-(void) activateOverlay {
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    self.view.alpha = 1;
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    [dimTimer setFireDate:HIDING_TIME_NEVER];
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}
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// dim the overlay when there's no more input for a certain amount of time
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-(IBAction) buttonReleased:(id) sender {
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    UIButton *theButton = (UIButton *)sender;
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    switch (theButton.tag) {
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        case 0:
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        case 1:
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        case 2:
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   210
        case 3:
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            HW_walkingKeysUp();
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            break;
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   213
        case 4:
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        case 5:
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   215
        case 6:
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            HW_otherKeysUp();
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            break;
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   218
        default:
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            NSLog(@"Nope");
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            break;
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   221
    }
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   222
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    [dimTimer setFireDate:HIDING_TIME_DEFAULT];
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}
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// issue certain action based on the tag of the button 
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   227
-(IBAction) buttonPressed:(id) sender {
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   228
    [self activateOverlay];
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   229
    if (isPopoverVisible) {
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   230
        [self dismissPopover];
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   231
    }
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    UIButton *theButton = (UIButton *)sender;
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   233
    
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    switch (theButton.tag) {
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   235
        case 0:
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   236
            HW_walkLeft();
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   237
            break;
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   238
        case 1:
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   239
            HW_walkRight();
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   240
            break;
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   241
        case 2:
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   242
            HW_aimUp();
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   243
            break;
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   244
        case 3:
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   245
            HW_aimDown();
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   246
            break;
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   247
        case 4:
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   248
            HW_shoot();
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   249
            break;
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   250
        case 5:
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   251
            HW_jump();
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   252
            break;
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   253
        case 6:
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   254
            HW_backjump();
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   255
            break;
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diff changeset
   256
        case 7:
02875b1145b7 i <3 mercurial
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   257
            HW_tab();
02875b1145b7 i <3 mercurial
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   258
            break;
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diff changeset
   259
        case 10:
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   260
            [self showPopover];
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   261
            break;
3624
304c6d32383a button to open ammomenu
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   262
        case 11:
304c6d32383a button to open ammomenu
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   263
            HW_ammoMenu();
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   264
            break;
3547
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   265
        default:
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   266
            DLog(@"Nope");
3547
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   267
            break;
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diff changeset
   268
    }
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   269
}
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   270
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   271
// present a further check before closing game
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   272
-(void) actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger) buttonIndex {
02875b1145b7 i <3 mercurial
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   273
    if ([actionSheet cancelButtonIndex] != buttonIndex)
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   274
        HW_terminate(NO);
02875b1145b7 i <3 mercurial
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diff changeset
   275
    else
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   276
        HW_pause();     
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   277
}
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   278
02875b1145b7 i <3 mercurial
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   279
// show up a popover containing a popupMenuViewController; we hook it with setPopoverContentSize
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   280
// on iphone instead just use the tableViewController directly (and implement manually all animations)
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   281
-(IBAction) showPopover{
02875b1145b7 i <3 mercurial
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   282
    isPopoverVisible = YES;
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diff changeset
   283
02875b1145b7 i <3 mercurial
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diff changeset
   284
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
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diff changeset
   285
        if (popupMenu == nil) 
02875b1145b7 i <3 mercurial
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diff changeset
   286
            popupMenu = [[PopoverMenuViewController alloc] initWithStyle:UITableViewStylePlain];
02875b1145b7 i <3 mercurial
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diff changeset
   287
        if (popoverController == nil) {
02875b1145b7 i <3 mercurial
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diff changeset
   288
            popoverController = [[UIPopoverController alloc] initWithContentViewController:popupMenu];
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diff changeset
   289
            [popoverController setPopoverContentSize:CGSizeMake(220, 170) animated:YES];
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diff changeset
   290
            [popoverController setPassthroughViews:[NSArray arrayWithObject:self.view]];
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diff changeset
   291
        }
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   292
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   293
        [popoverController presentPopoverFromRect:CGRectMake(1000, 0, 220, 32)
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   294
                                           inView:self.view
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   295
                         permittedArrowDirections:UIPopoverArrowDirectionUp
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   296
                                         animated:YES];
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diff changeset
   297
    } else {
02875b1145b7 i <3 mercurial
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diff changeset
   298
        if (popupMenu == nil) {
02875b1145b7 i <3 mercurial
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diff changeset
   299
            popupMenu = [[PopoverMenuViewController alloc] initWithStyle:UITableViewStyleGrouped];
02875b1145b7 i <3 mercurial
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diff changeset
   300
            popupMenu.view.backgroundColor = [UIColor clearColor];
02875b1145b7 i <3 mercurial
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diff changeset
   301
            popupMenu.view.frame = CGRectMake(480, 0, 200, 170);
02875b1145b7 i <3 mercurial
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diff changeset
   302
        }
02875b1145b7 i <3 mercurial
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diff changeset
   303
        [self.view addSubview:popupMenu.view];
02875b1145b7 i <3 mercurial
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diff changeset
   304
        
02875b1145b7 i <3 mercurial
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diff changeset
   305
        [UIView beginAnimations:@"showing popover" context:NULL];
02875b1145b7 i <3 mercurial
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diff changeset
   306
        [UIView setAnimationDuration:0.35];
02875b1145b7 i <3 mercurial
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diff changeset
   307
        popupMenu.view.frame = CGRectMake(280, 0, 200, 170);
02875b1145b7 i <3 mercurial
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diff changeset
   308
        [UIView commitAnimations];
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   309
    }
02875b1145b7 i <3 mercurial
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diff changeset
   310
    popupMenu.tableView.scrollEnabled = NO;
02875b1145b7 i <3 mercurial
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diff changeset
   311
}
02875b1145b7 i <3 mercurial
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diff changeset
   312
02875b1145b7 i <3 mercurial
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diff changeset
   313
// on ipad just dismiss it, on iphone transtion to the right
02875b1145b7 i <3 mercurial
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diff changeset
   314
-(void) dismissPopover {
02875b1145b7 i <3 mercurial
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diff changeset
   315
    if (YES == isPopoverVisible) {
02875b1145b7 i <3 mercurial
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diff changeset
   316
        isPopoverVisible = NO;
02875b1145b7 i <3 mercurial
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diff changeset
   317
        
02875b1145b7 i <3 mercurial
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diff changeset
   318
        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   319
            [popoverController dismissPopoverAnimated:YES];
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   320
        } else {
02875b1145b7 i <3 mercurial
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diff changeset
   321
            [UIView beginAnimations:@"hiding popover" context:NULL];
02875b1145b7 i <3 mercurial
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diff changeset
   322
            [UIView setAnimationDuration:0.35];
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   323
            popupMenu.view.frame = CGRectMake(480, 0, 200, 170);
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   324
            [UIView commitAnimations];
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   325
        
02875b1145b7 i <3 mercurial
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diff changeset
   326
            [popupMenu.view performSelector:@selector(removeFromSuperview) withObject:nil afterDelay:0.35];
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   327
        }
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   328
        [self buttonReleased:nil];
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   329
    }
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   330
}
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   331
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   332
-(void) textFieldDoneEditing:(id) sender{
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   333
    [sender resignFirstResponder];
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   334
}
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   335
02875b1145b7 i <3 mercurial
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diff changeset
   336
// this function is called by pascal FinishProgress and removes the spinning wheel when loading is done
02875b1145b7 i <3 mercurial
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diff changeset
   337
void spinningWheelDone (void) {
3551
d4de36b3801a moar zoom, fixed fort mode, other glitches
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parents: 3547
diff changeset
   338
    [singleton stopAnimating];
d4de36b3801a moar zoom, fixed fort mode, other glitches
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diff changeset
   339
    singleton = nil;
3547
02875b1145b7 i <3 mercurial
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diff changeset
   340
    canDim = YES;
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   341
}
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   342
02875b1145b7 i <3 mercurial
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diff changeset
   343
#pragma mark -
02875b1145b7 i <3 mercurial
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diff changeset
   344
#pragma mark Custom touch event handling
02875b1145b7 i <3 mercurial
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diff changeset
   345
-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
02875b1145b7 i <3 mercurial
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diff changeset
   346
    NSArray *twoTouches;
02875b1145b7 i <3 mercurial
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diff changeset
   347
    UITouch *touch = [touches anyObject];
3551
d4de36b3801a moar zoom, fixed fort mode, other glitches
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diff changeset
   348
    CGRect screen = [[UIScreen mainScreen] bounds];
d4de36b3801a moar zoom, fixed fort mode, other glitches
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diff changeset
   349
    CGPoint currentPosition = [touch locationInView:self.view];
3547
02875b1145b7 i <3 mercurial
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diff changeset
   350
    
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   351
    if (isPopoverVisible) {
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   352
        [self dismissPopover];
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   353
    }
02875b1145b7 i <3 mercurial
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parents: 3546
diff changeset
   354
    if (writeChatTextField) {
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   355
        [self.writeChatTextField resignFirstResponder];
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   356
        [dimTimer setFireDate:HIDING_TIME_DEFAULT];
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   357
    }
3598
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   358
    
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   359
    if (currentPosition.y < screen.size.width - 120) {
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   360
        switch ([touches count]) {
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   361
            case 1:
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   362
                DLog(@"X:%d Y:%d", HWX(currentPosition.x), HWY(currentPosition.y));
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   363
                HW_setCursor(HWX(currentPosition.x), HWY(currentPosition.y));
3624
304c6d32383a button to open ammomenu
koda
parents: 3617
diff changeset
   364
                if (2 == [touch tapCount])
304c6d32383a button to open ammomenu
koda
parents: 3617
diff changeset
   365
                    HW_zoomReset();
3598
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   366
                break;
3624
304c6d32383a button to open ammomenu
koda
parents: 3617
diff changeset
   367
            case 2:                
3598
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   368
                // pinching
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   369
                twoTouches = [touches allObjects];
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   370
                UITouch *first = [twoTouches objectAtIndex:0];
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   371
                UITouch *second = [twoTouches objectAtIndex:1];
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   372
                initialDistanceForPinching = distanceBetweenPoints([first locationInView:self.view], [second locationInView:self.view]);
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   373
                break;
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   374
            default:
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   375
                break;
a8aa06bae895 tiy new overlay graphics
koda
parents: 3551
diff changeset
   376
        }
3547
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   377
    }
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   378
}
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   379
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   380
-(void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   381
    initialDistanceForPinching = 0;
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   382
    //HW_allKeysUp();
3551
d4de36b3801a moar zoom, fixed fort mode, other glitches
koda
parents: 3547
diff changeset
   383
    HW_click();
3547
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   384
}
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   385
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   386
-(void) touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event {
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   387
    // this can happen if the user puts more than 5 touches on the screen at once, or perhaps in other circumstances
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   388
    [self touchesEnded:touches withEvent:event];
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   389
}
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   390
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   391
-(void) touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
3551
d4de36b3801a moar zoom, fixed fort mode, other glitches
koda
parents: 3547
diff changeset
   392
    CGRect screen = [[UIScreen mainScreen] bounds];
3547
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   393
    
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   394
    NSArray *twoTouches;
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   395
    CGPoint currentPosition;
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   396
    UITouch *touch = [touches anyObject];
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   397
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   398
    switch ([touches count]) {
3551
d4de36b3801a moar zoom, fixed fort mode, other glitches
koda
parents: 3547
diff changeset
   399
        case 1:
d4de36b3801a moar zoom, fixed fort mode, other glitches
koda
parents: 3547
diff changeset
   400
            if (HW_isAmmoOpen()) {
d4de36b3801a moar zoom, fixed fort mode, other glitches
koda
parents: 3547
diff changeset
   401
                currentPosition = [touch locationInView:self.view];
d4de36b3801a moar zoom, fixed fort mode, other glitches
koda
parents: 3547
diff changeset
   402
                DLog(@"X:%d Y:%d", HWX(currentPosition.x), HWY(currentPosition.y));
d4de36b3801a moar zoom, fixed fort mode, other glitches
koda
parents: 3547
diff changeset
   403
                HW_setCursor(HWX(currentPosition.x), HWY(currentPosition.y));
3547
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   404
            }
3551
d4de36b3801a moar zoom, fixed fort mode, other glitches
koda
parents: 3547
diff changeset
   405
            break;
3547
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   406
        case 2:
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   407
            twoTouches = [touches allObjects];
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   408
            UITouch *first = [twoTouches objectAtIndex:0];
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   409
            UITouch *second = [twoTouches objectAtIndex:1];
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   410
            CGFloat currentDistanceOfPinching = distanceBetweenPoints([first locationInView:self.view], [second locationInView:self.view]);
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   411
            const int pinchDelta = 40;
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   412
            
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   413
            if (0 != initialDistanceForPinching) {
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   414
                if (currentDistanceOfPinching - initialDistanceForPinching > pinchDelta) {
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   415
                    HW_zoomIn();
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   416
                    initialDistanceForPinching = currentDistanceOfPinching;
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   417
                }
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   418
                else if (initialDistanceForPinching - currentDistanceOfPinching > pinchDelta) {
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   419
                    HW_zoomOut();
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   420
                    initialDistanceForPinching = currentDistanceOfPinching;
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   421
                }
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   422
            } else 
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   423
                initialDistanceForPinching = currentDistanceOfPinching;
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   424
            
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   425
            break;
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   426
        default:
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   427
            break;
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   428
    }
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   429
}
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   430
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   431
02875b1145b7 i <3 mercurial
koda
parents: 3546
diff changeset
   432
@end