一列にドミノをならべて倒す！といったかんじのiPhoneアプリを描いてみます。
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>
@interface DominoScene : SKScene
@property BOOL contentCreated;
@end
@implementation DominoScene
– (void)didMoveToView:(SKView *)view
{
if (!self.contentCreated) {
[self createSceneContents];
self.contentCreated = YES;
}
}
– (void)createSceneContents
{
SKSpriteNode *ground = [SKSpriteNode spriteNodeWithColor:[SKColor brownColor] size:CGSizeMake(568, 10)];
ground.position = CGPointMake(284, 15);
ground.physicsBody = [SKPhysicsBody bodyWithRectangleOfSize:ground.size];
ground.physicsBody.dynamic = NO;
[self addChild:ground];
[self createDomino];
}
– (void)createDomino
{
for (int i=0; i<12; i++) {
float x = i * 30 + 80;
SKSpriteNode *domino = [SKSpriteNode spriteNodeWithColor:[SKColor greenColor] size:CGSizeMake(10, 50)];
domino.name = @”domino”;
domino.position = CGPointMake(x, 50);
domino.physicsBody = [SKPhysicsBody bodyWithRectangleOfSize:domino.size];
[self addChild:domino];
}
}
– (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
SKNode *firstDomino = [self childNodeWithName:@”domino”];
[firstDomino.physicsBody applyImpulse:CGVectorMake(1, 0) atPoint:CGPointMake(0, 50)];
[self performSelector:@selector(restart) withObject:nil afterDelay:3.0];
}
– (void)restart
{
[self enumerateChildNodesWithName:@”domino” usingBlock:^(SKNode *node, BOOL *stop) {
[node removeFromParent];
}];
[self createDomino];
}
@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 = [[DominoScene alloc] initWithSize:spriteView.frame.size];
[spriteView presentScene:scene];
}
– (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end