真ん中の穴とおなじ形のひよこはどれかな？
みつかったら、穴のとこまでひよこを連れて行ってね！
という感じの子供向けiPhone ゲームのサンプルコードを書いてみた。
ポイント
ひよこの形をA,B,C,Dと四種類用意して、
真ん中は、黒でランダムABCDから表示してみました。
黒とひよこが接触したタイミングで一致判定をしています。
環境
このiPhoneアプリサンプルは、
XcodeのiOS6 iPhone Simulatorで動かしています
サンプルコード
#import “ViewController.h”
#import <QuartzCore/QuartzCore.h>
@interface ViewController () {
UIView *shadow;
BOOL loading;
}
@end
@implementation ViewController
– (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor = [UIColor greenColor];
[self setUpHiyoko];
[self showShadow];
}
– (void)setUpHiyoko
{
UIView *a = [self createHiyokoA];
a.center = CGPointMake(50, 350);
[self addFace:a];
[self.view addSubview:a];
[self addPanGesture:a];
UIView *b = [self createHiyokoB];
b.center = CGPointMake(120, 350);
[self addFace:b];
[self.view addSubview:b];
[self addPanGesture:b];
UIView *c = [self createHiyokoC];
c.center = CGPointMake(190, 350);
[self addFace:c];
[self.view addSubview:c];
[self addPanGesture:c];
UIView *d = [self createHiyokoD];
d.center = CGPointMake(260, 350);
[self addFace:d];
[self.view addSubview:d];
[self addPanGesture:d];
}
– (UIView*)createHiyokoA
{
UIView *hiyoko = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 30, 30)];
hiyoko.backgroundColor = [UIColor yellowColor];
hiyoko.layer.cornerRadius = 10;
hiyoko.tag = 1;
return hiyoko;
}
– (UIView*)createHiyokoB
{
UIView *hiyoko = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 30, 30)];
hiyoko.backgroundColor = [UIColor yellowColor];
hiyoko.layer.cornerRadius = 14;
hiyoko.tag = 2;
return hiyoko;
}
– (UIView*)createHiyokoC
{
UIView *hiyoko = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 30, 50)];
hiyoko.backgroundColor = [UIColor yellowColor];
hiyoko.layer.cornerRadius = 8;
hiyoko.tag = 3;
return hiyoko;
}
– (UIView*)createHiyokoD
{
UIView *hiyoko = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 30, 30)];
hiyoko.backgroundColor = [UIColor clearColor];
hiyoko.tag = 4;
// round corner triangle
UIBezierPath *path = [UIBezierPath bezierPath];
[path moveToPoint:CGPointMake(4, 0)];
[path addLineToPoint:CGPointMake(26, 0)];
[path addQuadCurveToPoint:CGPointMake(30, 4) controlPoint:CGPointMake(30, 0)];
[path addLineToPoint:CGPointMake(17, 28)];
[path addQuadCurveToPoint:CGPointMake(13, 28) controlPoint:CGPointMake(15, 30)];
[path addLineToPoint:CGPointMake(0, 4)];
[path addQuadCurveToPoint:CGPointMake(4, 0) controlPoint:CGPointMake(0, 0)];
CAShapeLayer *sl = [[CAShapeLayer alloc] initWithLayer:hiyoko.layer];
sl.fillColor = [UIColor yellowColor].CGColor;
sl.path = path.CGPath;
[hiyoko.layer addSublayer:sl];
return hiyoko;
}
– (void)addPanGesture:(UIView*)v
{
UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(pan:)];
[v addGestureRecognizer:pan];
}
– (void)pan:(UIPanGestureRecognizer*)gr
{
if (loading) {
return;
}
[self.view insertSubview:gr.view aboveSubview:shadow];
CGPoint p = [gr locationInView:self.view];
gr.view.center = p;
if (CGRectIntersectsRect(gr.view.frame, shadow.frame)) {
if (gr.view.tag == shadow.tag) {
loading = YES;
[UIView animateWithDuration:0.5 animations:^{
gr.view.center = shadow.center;
} completion:^(BOOL finished) {
[self clear];
}];
}
}
}
– (void)showShadow
{
int type = arc4random() % 4;
switch (type) {
case 0: shadow = [self createHiyokoA]; break;
case 1: shadow = [self createHiyokoB]; break;
case 2: shadow = [self createHiyokoC]; break;
case 3: shadow = [self createHiyokoD]; break;
default:
break;
}
shadow.center = CGPointMake(160, 150);
if (type == 3) {
CAShapeLayer *l = [shadow.layer.sublayers objectAtIndex:0];
l.fillColor = [UIColor blackColor].CGColor;
} else {
shadow.backgroundColor = [UIColor blackColor];
}
[self.view addSubview:shadow];
}
– (void)addFace:(UIView*)hiyoko
{
UIView *eyeR = [[UIView alloc] initWithFrame:CGRectMake(5, 5, 3, 3)];
eyeR.layer.cornerRadius = 1.5;
eyeR.backgroundColor = [UIColor blackColor];
UIView *eyeL = [[UIView alloc] initWithFrame:CGRectMake(20, 5, 3, 3)];
eyeL.layer.cornerRadius = 1.5;
eyeL.backgroundColor = [UIColor blackColor];
UIView *mouth = [[UIView alloc] initWithFrame:CGRectMake(11, 12, 8, 3)];
mouth.layer.cornerRadius = 1.5;
mouth.backgroundColor = [UIColor orangeColor];
[hiyoko addSubview:eyeR];
[hiyoko addSubview:eyeL];
[hiyoko addSubview:mouth];
}
– (void)clear
{
UILabel *clear = [[UILabel alloc] initWithFrame:CGRectMake(20, 50, 280, 150)];
clear.text = @”OK”;
clear.font = [UIFont boldSystemFontOfSize:40];
clear.textAlignment = 1;
clear.textColor = [UIColor yellowColor];
clear.backgroundColor = [UIColor orangeColor];
clear.layer.cornerRadius = 20;
clear.alpha = 0.8;
[self.view addSubview:clear];
clear.transform = CGAffineTransformMakeTranslation(0, –300);
[UIView animateWithDuration:0.5 animations:^{
clear.transform = CGAffineTransformIdentity;
} completion:^(BOOL finished) {
[UIView animateWithDuration:0.5 delay:0.5 options:UIViewAnimationOptionCurveEaseIn animations:^{
clear.transform = CGAffineTransformMakeTranslation(0, –300);
} completion:^(BOOL finished) {
for (UIView *v in self.view.subviews) {
[v removeFromSuperview];
}
[self setUpHiyoko];
[self showShadow];
loading = NO;
}];
}];
}
– (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end