お魚を左のバケツに入れると赤い色、右のバケツに入れると青い色に変身するようなiPhoneアプリのサンプルコードを描いてみます。
動作イメージ
XcodeからiOS7 iPhone Simulatorで動かすとこんな感じになります。
サンプルコード
#import “ViewController.h”
#import <SpriteKit/SpriteKit.h>
#define ColorHex(rgbValue) [SKColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 green:((float)((rgbValue & 0xFF00) >> 8))/255.0 blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]
@interface ColorChangeScene : SKScene
@property BOOL contentCreated;
@end
@implementation ColorChangeScene
– (void)didMoveToView:(SKView *)view
{
if (!self.contentCreated) {
[self createSceneContents];
self.contentCreated = YES;
}
}
– (void)createSceneContents
{
self.backgroundColor = ColorHex(0xF1C0A2);
SKSpriteNode *left = [SKSpriteNode spriteNodeWithImageNamed:@”arrowleft”];
left.position = CGPointMake(150, 250);
left.name = @”left”;
[self addChild:left];
SKSpriteNode *right = [SKSpriteNode spriteNodeWithImageNamed:@”arrowright”];
right.position = CGPointMake(CGRectGetMaxX(self.frame) – 150, 250);
right.name = @”right”;
[self addChild:right];
SKSpriteNode *fish = [SKSpriteNode spriteNodeWithImageNamed:@”fish”];
fish.position = CGPointMake(CGRectGetMidX(self.frame), 230);
fish.name = @”fish”;
fish.zPosition = 1;
[self addChild:fish];
SKSpriteNode *hotbath = [SKSpriteNode spriteNodeWithImageNamed:@”hot”];
hotbath.position = CGPointMake(150, 80);
hotbath.name = @”hot”;
[self addChild:hotbath];
SKSpriteNode *cold = [SKSpriteNode spriteNodeWithImageNamed:@”cold”];
cold.position = CGPointMake(CGRectGetMaxX(self.frame)-150, 80);
cold.name = @”cold”;
[self addChild:cold];
SKAction *fadeOut = [SKAction fadeAlphaTo:0.3 duration:1.0];
SKAction *fadeIn = [SKAction fadeInWithDuration:1.0];
SKAction *flashTypeA = [SKAction repeatActionForever:[SKAction sequence:@[fadeOut, fadeIn]]];
SKAction *flashTypeB = [SKAction repeatActionForever:[SKAction sequence:@[fadeIn, fadeOut]]];
[right runAction:flashTypeA];
[left runAction:flashTypeB];
}
– (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
CGPoint p = [[touches anyObject] locationInNode:self];
SKNode *fish = [self childNodeWithName:@”fish”];
if ([[self childNodeWithName:@”left”] containsPoint:p]) {
SKAction *jump = [SKAction moveTo:CGPointMake(150, 300) duration:0.2];
SKAction *moveToHot = [SKAction moveTo:CGPointMake(150, 100) duration:0.5];
SKAction *colorChange = [SKAction colorizeWithColor:ColorHex(0xD72B5D) colorBlendFactor:1.0 duration:3.0];
[fish runAction:[SKAction sequence:@[jump, moveToHot, colorChange]]];
} else {
SKAction *jump = [SKAction moveTo:CGPointMake(CGRectGetMaxX(self.frame)-150, 300) duration:0.2];
SKAction *moveToHot = [SKAction moveTo:CGPointMake(CGRectGetMaxX(self.frame)-150, 100) duration:0.5];
SKAction *colorChange = [SKAction colorizeWithColor:ColorHex(0x51B5C5) colorBlendFactor:1.0 duration:3.0];
[fish runAction:[SKAction sequence:@[jump, moveToHot, colorChange]]];
}
}
@end
@interface ViewController ()
@end
@implementation ViewController
– (void)viewDidLoad
{
[super viewDidLoad];
SKView *spriteView = [[SKView alloc] initWithFrame:CGRectMake(0, 0, 568, 320)];
[self.view addSubview:spriteView];
SKScene *scene = [[ColorChangeScene alloc] initWithSize:spriteView.bounds.size];
[spriteView presentScene:scene];
}
– (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end