５つのドアのうち、一つだけ下の階に繋がるドアがあります。正解のドアをみつけて、ドンドン下に逃げていきましょう。という感じのiPhoneアプリの作成方法を書いていきます。
動作イメージ
XcodeからiOS6 iPhone Simulatorで動かすとこんな感じになります。
ポイント
ドアは、UIViewで描いています。枠はlayerのborder、ドアノブはlayerのcornerRadiusで丸くしてという感じです。人の画像は、pict.pngという名前で画像ファイルを適当に用意しました。５枚のドアを一つの単位にしています。表示の際に、ランダムでひとつ正解のドアを決めておいて、UIViewのtag == 1として判定できるようにしました。
サンプルコード
#import “ViewController.h”
#import <QuartzCore/QuartzCore.h>
@interface ViewController () {
UIImageView *player;
}
@end
@implementation ViewController
– (void)viewDidLoad
{
[super viewDidLoad];
[self createPlayer];
[self lineUpDoors];
}
– (void)createPlayer
{
UIImage *image = [UIImage imageNamed:@”pict”];
player = [[UIImageView alloc] initWithImage:image];
player.contentMode = UIViewContentModeScaleToFill;
player.frame = CGRectMake(0, 330, 40, 50);
[self.view addSubview:player];
}
– (void)lineUpDoors
{
int correct = arc4random() % 5;
float w = 320.0 / 6.0;
for (int i=0; i<5; i++) {
float x = (w + 6) * i + 15;
float y = 300;
UIView *door = [self createDoor:CGRectMake(x, y, w, w * 1.5)];
[self.view addSubview:door];
if (i == correct) {
door.tag = 1;
}
}
UIView *floor = [[UIView alloc] initWithFrame:CGRectMake(0, 300 + w * 1.4, 320, 8)];
floor.backgroundColor = [UIColor blackColor];
[self.view addSubview:floor];
// player
[self.view addSubview:player];
}
– (UIView*)createDoor:(CGRect)frame
{
UIView *doorFrame = [[UIView alloc] initWithFrame:frame];
doorFrame.layer.borderColor = [UIColor blackColor].CGColor;
doorFrame.layer.borderWidth = 5;
[self.view addSubview:doorFrame];
UIView *door = [[UIView alloc] initWithFrame:CGRectMake(7, 7, doorFrame.bounds.size.width – 14, doorFrame.bounds.size.height – 14)];
door.backgroundColor = [UIColor blackColor];
door.layer.anchorPoint = CGPointMake(1.0, 0.5);
door.layer.position = CGPointMake(door.bounds.size.width + 7, door.bounds.size.height * 0.5 + 7);
[doorFrame addSubview:door];
UIView *knob = [[UIView alloc] initWithFrame:CGRectMake(5, door.bounds.size.height * 0.5, 6, 6)];
knob.layer.cornerRadius = 3;
knob.backgroundColor = [UIColor whiteColor];
[door addSubview:knob];
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(open:)];
[door addGestureRecognizer:tap];
return doorFrame;
}
– (void)open:(UITapGestureRecognizer*)gr
{
CGPoint p = gr.view.superview.center;
[UIView animateWithDuration:1.0 animations:^{
player.center = CGPointMake(p.x, p.y + 15);
gr.view.layer.transform = CATransform3DMakeRotation(M_PI * 0.4, 0, 1, 0);
} completion:^(BOOL finished) {
if (gr.view.superview.tag == 1) {
// correct!
[gr.view.superview bringSubviewToFront:player];
[UIView animateWithDuration:0.5 animations:^{
CGAffineTransform t = CGAffineTransformMakeScale(0.8, 0.8);
t = CGAffineTransformTranslate(t, –5, –5);
player.transform = t;
player.alpha = 0.5;
} completion:^(BOOL finished) {
// next door
[player removeFromSuperview];
[UIView animateWithDuration:0.5 animations:^{
for (UIView *v in self.view.subviews) {
v.userInteractionEnabled = NO;
v.center = CGPointMake(v.center.x, v.center.y – 150);
}
} completion:^(BOOL finished) {
[self createPlayer];
[self lineUpDoors];
}];
}];
}
}];
}
– (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end