#import "STHanoiViewController.h"

#import "STHanoiView.h"

#import "STHanoiOperation.h"

#import "STCodeViewController.h"

@interface STHanoiViewController ()

@property (nonatomic, strong) STHanoiView * hanoiView;

@property (nonatomic, strong) NSOperationQueue * animationQueue;

@implementation STHanoiViewController

- (instancetype) initWithCoder:(NSCoder *)aDecoder {

self = [super initWithCoder:aDecoder];

if (self) {

self.animationQueue = [[NSOperationQueue alloc] init];

self.animationQueue.maxConcurrentOperationCount = 1;

self.numberOfHanois = 4;

}

return self;

}

- (void)viewDidLoad {

[super viewDidLoad];

// Do any additional setup after loading the view.

self.navigationItem.title = @"汉诺塔";

self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"源码" style:UIBarButtonItemStylePlain target:self action:@selector(viewSourceCode:)];

self.hanoiView = [[STHanoiView alloc] initWithFrame:CGRectMake(0, 100, 320, 300)];

self.hanoiView.numberOfHanois = self.numberOfHanois;

[self.view addSubview:self.hanoiView];

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

- (void) viewDidAppear:(BOOL)animated {

[super viewDidAppear:animated];

[self.hanoiView reloadHanoiView];

[self moveHanoiWithNumber:self.numberOfHanois - 1 position0:0 position1:1 position2:2];

}

- (void) viewDidDisappear:(BOOL)animated {

[super viewDidDisappear:animated];

[self.animationQueue cancelAllOperations];

}

- (void) moveHanoiWithNumber:(NSInteger) number

position0:(NSInteger) position0

position1:(NSInteger) position1

position2:(NSInteger) position2 {

if (number == 0) {

STHanoiOperation * operation1 = [[STHanoiOperation alloc] init];

operation1.index = position0;

operation1.toIndex = position2;

operation1.hanoiView = self.hanoiView;

[self.animationQueue addOperation:operation1];

} else {

[self moveHanoiWithNumber:number - 1 position0:position0 position1:position2 position2:position1];

STHanoiOperation * operation2 = [[STHanoiOperation alloc] init];

operation2.index = position0;

operation2.toIndex = position2;

operation2.hanoiView = self.hanoiView;

[self.animationQueue addOperation:operation2];

[self moveHanoiWithNumber:number - 1 position0:position1 position1:position0 position2:position2];

}

}

- (void) viewSourceCode:(id) sender {

STCodeViewController * viewController = [self.storyboard instantiateViewControllerWithIdentifier:@"STCodeViewController"];

viewController.algorithmType = STAlgorithmTypeHanoi;

[self.navigationController pushViewController:viewController animated:YES];

}