風船を増やして上昇、割って下降、ボタンをつかって上手に壁の穴をすり抜けていこう！というようなiPhoneゲームを作ってみます。
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。
サンプルコード
#import “ViewController.h”
#import <QuartzCore/QuartzCore.h>
@interface ViewController ()
{
UIView *player;
UIView *needle;
UIView *wall;
BOOL needleReady;
NSMutableArray *balloons;
}
@end
@implementation ViewController
– (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor = [UIColor yellowColor];
[self createPlayer];
[self createNeedle];
[self createBalloonButton];
[self createNeedleButton];
[self start];
}
– (void)createPlayer
{
player = [[UIView alloc] initWithFrame:CGRectMake(50, 180, 80, 80)];
player.backgroundColor = [UIColor clearColor];
UIView *face = [[UIView alloc] initWithFrame:CGRectMake(25, 50, 30, 30)];
face.backgroundColor = [UIColor blackColor];
[player addSubview:face];
[self.view addSubview:player];
[self createBalloon];
[self createBalloon];
[self createBalloon];
}
-(void)createBalloon
{
CGPoint p[] = {
CGPointMake(20, 10), CGPointMake(40, 5), CGPointMake(60, 10),
CGPointMake(20, 20), CGPointMake(40, 12), CGPointMake(60, 20),
};
CGPoint o = p[[balloons count]];
UIBezierPath *path = [UIBezierPath bezierPath];
[path addArcWithCenter:o radius:10 startAngle:0 endAngle:2*M_PI clockwise:YES];
[path moveToPoint:CGPointMake(o.x, o.y+10)];
[path addLineToPoint:CGPointMake(40, 50)];
CAShapeLayer *sl = [CAShapeLayer layer];
sl.fillColor = [UIColor blackColor].CGColor;
sl.strokeColor = [UIColor grayColor].CGColor;
sl.lineWidth = 2;
sl.path = path.CGPath;
[player.layer addSublayer:sl];
if (!balloons) {
balloons = [[NSMutableArray alloc] init];
}
[balloons addObject:sl];
}
– (void)createNeedle
{
UIBezierPath *path = [UIBezierPath bezierPath];
[path moveToPoint:CGPointMake(0, 0)];
[path addLineToPoint:CGPointMake(10, 0)];
[path addLineToPoint:CGPointMake(5, 20)];
[path closePath];
CAShapeLayer *sl = [CAShapeLayer layer];
sl.fillColor = [UIColor blackColor].CGColor;
sl.strokeColor = [UIColor grayColor].CGColor;
sl.lineWidth = 2;
sl.path = path.CGPath;
needle = [[UIView alloc] initWithFrame:CGRectMake(80, 0, 5, 20)];
[needle.layer addSublayer:sl];
[self.view addSubview:needle];
needleReady = YES;
}
– (void)createBalloonButton
{
// balloon
UIView *balloonBtn = [[UIView alloc] initWithFrame:CGRectMake(400, 230, 60, 60)];
balloonBtn.backgroundColor = self.view.backgroundColor;
balloonBtn.layer.cornerRadius = 30;
balloonBtn.layer.borderWidth = 4;
balloonBtn.layer.borderColor = [UIColor blackColor].CGColor;
[self.view addSubview:balloonBtn];
CGPoint o = CGPointMake(30, 20);
UIBezierPath *path = [UIBezierPath bezierPath];
[path addArcWithCenter:o radius:10 startAngle:0 endAngle:2*M_PI clockwise:YES];
[path moveToPoint:CGPointMake(o.x, o.y+10)];
[path addLineToPoint:CGPointMake(25, 50)];
CAShapeLayer *sl = [CAShapeLayer layer];
sl.fillColor = [UIColor blackColor].CGColor;
sl.strokeColor = [UIColor grayColor].CGColor;
sl.lineWidth = 2;
sl.path = path.CGPath;
[balloonBtn.layer addSublayer:sl];
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(createBalloon)];
[balloonBtn addGestureRecognizer:tap];
}
– (void)createNeedleButton
{
// needle
UIView *needleBtn = [[UIView alloc] initWithFrame:CGRectMake(480, 230, 60, 60)];
needleBtn.backgroundColor = self.view.backgroundColor;
needleBtn.layer.cornerRadius = 30;
needleBtn.layer.borderWidth = 4;
needleBtn.layer.borderColor = [UIColor blackColor].CGColor;
[self.view addSubview:needleBtn];
UIBezierPath *path = [UIBezierPath bezierPath];
[path moveToPoint:CGPointMake(15, 15)];
[path addLineToPoint:CGPointMake(45, 15)];
[path addLineToPoint:CGPointMake(30, 50)];
[path closePath];
CAShapeLayer *sl = [CAShapeLayer layer];
sl.fillColor = [UIColor blackColor].CGColor;
sl.strokeColor = [UIColor grayColor].CGColor;
sl.lineWidth = 2;
sl.path = path.CGPath;
[needleBtn.layer addSublayer:sl];
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dropNeedle)];
[needleBtn addGestureRecognizer:tap];
}
– (void)dropNeedle
{
if (needle && needleReady) {
needleReady = NO;
float duration = player.center.y / 320.0;
[UIView animateWithDuration:duration animations:^{
needle.center = CGPointMake(player.center.x, player.center.y – 30);
} completion:^(BOOL finished) {
[[balloons lastObject] removeFromSuperlayer];
[balloons removeLastObject];
[needle removeFromSuperview];
needle = nil;
[self performSelector:@selector(createNeedle) withObject:nil afterDelay:0.5];
}];
}
}
– (void)start
{
[NSTimer scheduledTimerWithTimeInterval:1.0/60.0 target:self selector:@selector(tick:) userInfo:nil repeats:YES];
}
– (void)tick:(NSTimer*)sender
{
int count = [balloons count];
float upForce = (count – 2.5) / 4.0;
player.center = CGPointMake(player.center.x, player.center.y – upForce);
if (!wall) {
[self createWall];
}
wall.center = CGPointMake(wall.center.x – 1, wall.center.y);
if (wall.center.x < 0) {
[wall removeFromSuperview];
wall = nil;
}
}
– (void)createWall
{
wall = [[UIView alloc] initWithFrame:CGRectMake(580, 0, 10, 320)];
wall.backgroundColor= [UIColor blackColor];
[self.view insertSubview:wall atIndex:0];
float y = arc4random() % 220;
UIView *hole = [[UIView alloc] initWithFrame:CGRectMake(0, y, 10, 100)];
hole.backgroundColor = self.view.backgroundColor;
[wall addSubview:hole];
}
– (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end