Created
August 26, 2017 12:57
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pineapple ring
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// | |
// ViewController.m | |
// pineappleRing | |
// | |
// Created by MizushimaYusuke on 2017/08/26. | |
// Copyright © 2017 MizushimaYusuke. All rights reserved. | |
// | |
#import "ViewController.h" | |
@import SpriteKit; | |
@interface ViewController () | |
@property (nonatomic, weak) SKScene *scene; | |
@end | |
@implementation ViewController | |
- (void)viewDidLoad { | |
[super viewDidLoad]; | |
[self setupScene]; | |
[self createPineapples]; | |
} | |
- (void)setupScene { | |
SKView *sv = [[SKView alloc] initWithFrame:self.view.bounds]; | |
SKScene *s = [SKScene sceneWithSize:sv.frame.size]; | |
s.backgroundColor = [UIColor colorWithHue:0.4 saturation:0.1 brightness:1 alpha:1]; | |
[sv presentScene:s]; | |
[self.view addSubview:sv]; | |
self.scene = s; | |
} | |
- (void)createPineapples { | |
for (int i=0; i<18; i++) { | |
for (int j=0; j<8; j++) { | |
if (arc4random_uniform(10) == 0) { | |
continue; | |
} | |
SKNode *pineapple = [self createPineapple]; | |
pineapple.position = CGPointMake(i * 50, j * 50); | |
} | |
} | |
} | |
- (SKNode *)createPineapple { | |
UIGraphicsBeginImageContextWithOptions(CGSizeMake(40, 40), NO, 0); | |
CGContextRef ctx = UIGraphicsGetCurrentContext(); | |
[[UIColor colorWithHue:0.14 saturation:0.8 brightness:0.95 alpha:1] set]; | |
CGContextFillEllipseInRect(ctx, CGRectMake(0, 0, 40, 40)); | |
CGContextTranslateCTM(ctx, 20, 20); | |
[[UIColor colorWithHue:0.14 saturation:0.2 brightness:1 alpha:1] set]; | |
for (int i=0; i<10; i++) { | |
float r0 = arc4random_uniform(2); | |
float r1 = arc4random_uniform(5) + 4; | |
CGContextFillRect(ctx, CGRectMake(10 + r0, -0.5, r1, 1)); | |
CGContextRotateCTM(ctx, M_PI / 5); | |
} | |
CGContextSetBlendMode(ctx, kCGBlendModeClear); | |
CGContextFillEllipseInRect(ctx, CGRectMake(-8, -8, 16, 16)); | |
UIImage *img = UIGraphicsGetImageFromCurrentImageContext(); | |
UIGraphicsEndImageContext(); | |
SKTexture *texture = [SKTexture textureWithImage:img]; | |
SKSpriteNode *pineapple = [SKSpriteNode spriteNodeWithTexture:texture]; | |
pineapple.name = @"pineapple"; | |
pineapple.position = CGPointMake(CGRectGetMidX(self.view.bounds), CGRectGetMidY(self.view.bounds)); | |
[self.scene addChild:pineapple]; | |
return pineapple; | |
} | |
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event { | |
[self.scene enumerateChildNodesWithName:@"pineapple" usingBlock:^(SKNode * _Nonnull node, BOOL * _Nonnull stop) { | |
if (arc4random_uniform(5) == 0) { | |
[node runAction:[SKAction rotateByAngle:2.0 * M_PI duration:3.0]]; | |
} | |
}]; | |
} | |
@end |
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http://lepetit-prince.net/ios/?p=6593