【iOSプログラミング】惑星公転軌道をデフォルト機能だけでシミュレーションしてみた
前回までに
・iOS Developer登録(申請篇、アクティベート篇、完結篇)
ということでやってきました。
前回初めて勉強したレイヤーの復習ということで
今回は蛇足というか完全に遊びですw
iPhoneアプリを勉強して10日目のニートが調子にのって戯言を言っているなー程度に
少しだけお付き合い下さい。
前回、レイヤーは任意の軌道を移動することができると言いましたが、
それを利用して太陽系の惑星を公転軌道をシミュレーションしてみました。
その様子です。
中心の黒いのが銀河の中心で
中心がオレンジで赤いのが太陽
その周りを金星(茶色)、地球(青)、火星(赤)、木製(水色)が公転しています。
更に地球の周りには黄色い月が公転しています。
ちなみに公転周期と公転半径(そもそも真円じゃない笑)は現実のものとは全く異なる仮想的なものです。
こんな感じで書いたら天文学の先生とかに怒られそうですが
アニメーションの勉強ということでお許し頂ければと思います。
以下、ソースコードです。
//銀河系の中心
int radiusCore = 10;
CALayer *galaticsCore = [CALayer layer];
galaticsCore.bounds = CGRectMake(0, 0, radiusCore*2, radiusCore*2);
galaticsCore.position = self.view.center;
galaticsCore.cornerRadius = radiusCore;
galaticsCore.backgroundColor = [UIColor blackColor].CGColor;
[self.view.layer addSublayer:galaticsCore];
int radiusOrbitSun = 80;
CALayer *orbitSun = [CALayer layer];
orbitSun.bounds = CGRectMake(0, 0, radiusOrbitSun*2, radiusOrbitSun*2);
orbitSun.position = self.view.center;
orbitSun.cornerRadius = radiusOrbitSun;
orbitSun.borderColor = [UIColor lightGrayColor].CGColor;
orbitSun.borderWidth = 1.5;
int radiusSun = 30;
CALayer *sun = [CALayer layer];
sun.bounds = CGRectMake(0, 0, radiusSun*2, radiusSun*2);
sun.position = CGPointMake(radiusOrbitSun, 0);
sun.cornerRadius = radiusSun;
sun.borderColor = [UIColor redColor].CGColor;
sun.borderWidth = radiusSun/2;
sun.backgroundColor = [UIColor orangeColor].CGColor;
[orbitSun addSublayer:sun];
CABasicAnimation *revolutionOfSun = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
revolutionOfSun.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
revolutionOfSun.fromValue = [NSNumber numberWithFloat:0];
revolutionOfSun.toValue = [NSNumber numberWithFloat:((360*M_PI)/180)];
revolutionOfSun.repeatCount = HUGE_VALF;
revolutionOfSun.duration = 8.0;
[orbitSun addAnimation:revolutionOfSun forKey:@"transform"];
[self.view.layer addSublayer:orbitSun];
// Orbit of Jupiter
int radiusOrbitJupiter = 90;
CALayer *orbitJupiter = [CALayer layer];
orbitJupiter.bounds = CGRectMake(0, 0, radiusOrbitJupiter*2, radiusOrbitJupiter*2);
orbitJupiter.position = sun.position;
orbitJupiter.cornerRadius = radiusOrbitJupiter;
orbitJupiter.borderColor = [UIColor lightGrayColor].CGColor;
orbitJupiter.borderWidth = 1.5;
int radiusJupiter = 20;
CALayer *Jupiter = [CALayer layer];
Jupiter.bounds = CGRectMake(0, 0, radiusJupiter*2, radiusJupiter*2);
Jupiter.position = CGPointMake(radiusOrbitJupiter, 0);
Jupiter.cornerRadius = radiusJupiter;
Jupiter.backgroundColor = [UIColor cyanColor].CGColor;
[orbitJupiter addSublayer:Jupiter];
CABasicAnimation *revolutionOfJupiter = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
revolutionOfJupiter.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
revolutionOfJupiter.fromValue = [NSNumber numberWithFloat:0];
revolutionOfJupiter.toValue = [NSNumber numberWithFloat:((360*M_PI)/180)];
revolutionOfJupiter.repeatCount = HUGE_VALF;
revolutionOfJupiter.duration = 7.0;
[orbitJupiter addAnimation:revolutionOfJupiter forKey:@"transform"];
[orbitSun addSublayer:orbitJupiter];
// Orbit of Venus
int radiusOrbitVenus = 40;
CALayer *orbitVenus = [CALayer layer];
orbitVenus.bounds = CGRectMake(0, 0, radiusOrbitVenus*2, radiusOrbitVenus*2);
orbitVenus.position = sun.position;
orbitVenus.cornerRadius = radiusOrbitVenus;
orbitVenus.borderColor = [UIColor lightGrayColor].CGColor;
orbitVenus.borderWidth = 1.5;
int radiusVenus = 5;
CALayer *Venus = [CALayer layer];
Venus.bounds = CGRectMake(0, 0, radiusVenus*2, radiusVenus*2);
Venus.position = CGPointMake(radiusOrbitVenus, 0);
Venus.cornerRadius = radiusVenus;
Venus.backgroundColor = [UIColor brownColor].CGColor;
[orbitVenus addSublayer:Venus];
CABasicAnimation *revolutionOfVenus = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
revolutionOfVenus.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
revolutionOfVenus.fromValue = [NSNumber numberWithFloat:0];
revolutionOfVenus.toValue = [NSNumber numberWithFloat:((360*M_PI)/180)];
revolutionOfVenus.repeatCount = HUGE_VALF;
revolutionOfVenus.duration = 3.0;
[orbitVenus addAnimation:revolutionOfVenus forKey:@"transform"];
[orbitSun addSublayer:orbitVenus];
// Orbit of Mars
int radiusOrbitMars = 70;
CALayer *orbitMars = [CALayer layer];
orbitMars.bounds = CGRectMake(0, 0, radiusOrbitMars*2, radiusOrbitMars*2);
orbitMars.position = sun.position;
orbitMars.cornerRadius = radiusOrbitMars;
orbitMars.borderColor = [UIColor lightGrayColor].CGColor;
orbitMars.borderWidth = 1.5;
int radiusMars = 5;
CALayer *Mars = [CALayer layer];
Mars.bounds = CGRectMake(0, 0, radiusMars*2, radiusMars*2);
Mars.position = CGPointMake(radiusOrbitMars, 0);
Mars.cornerRadius = radiusMars;
Mars.backgroundColor = [UIColor redColor].CGColor;
[orbitMars addSublayer:Mars];
CABasicAnimation *revolutionOfMars = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
revolutionOfMars.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
revolutionOfMars.fromValue = [NSNumber numberWithFloat:0];
revolutionOfMars.toValue = [NSNumber numberWithFloat:((360*M_PI)/180)];
revolutionOfMars.repeatCount = HUGE_VALF;
revolutionOfMars.duration = 4.0;
[orbitMars addAnimation:revolutionOfMars forKey:@"transform"];
[orbitSun addSublayer:orbitMars];
// Orbit of Earth
int radiusOrbitEarth = 60;
CALayer *orbitEarth = [CALayer layer];
orbitEarth.bounds = CGRectMake(0, 0, radiusOrbitEarth*2, radiusOrbitEarth*2);
orbitEarth.position = sun.position;
orbitEarth.cornerRadius = radiusOrbitEarth;
orbitEarth.borderColor = [UIColor lightGrayColor].CGColor;
orbitEarth.borderWidth = 1.5;
int radiusEarth = 8;
CALayer *earth = [CALayer layer];
earth.bounds = CGRectMake(0, 0, radiusEarth*2, radiusEarth*2);
earth.position = CGPointMake(radiusOrbitEarth, 0);
earth.cornerRadius = radiusEarth;
earth.backgroundColor = [UIColor blueColor].CGColor;
[orbitEarth addSublayer:earth];
CABasicAnimation *revolutionOfEarth = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
revolutionOfEarth.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
revolutionOfEarth.fromValue = [NSNumber numberWithFloat:0];
revolutionOfEarth.toValue = [NSNumber numberWithFloat:((360*M_PI)/180)];
revolutionOfEarth.repeatCount = HUGE_VALF;
revolutionOfEarth.duration = 5.0;
[orbitEarth addAnimation:revolutionOfEarth forKey:@"transform"];
[orbitSun addSublayer:orbitEarth];
// Orbit of Moon
int radiusOrbitMoon = 30;
CALayer *orbitMoon = [CALayer layer];
orbitMoon.bounds = CGRectMake(0, 0, radiusOrbitMoon*2, radiusOrbitMoon*2);
orbitMoon.position = earth.position;
orbitMoon.cornerRadius = radiusOrbitMoon;
orbitMoon.borderColor = [UIColor lightGrayColor].CGColor;
orbitMoon.borderWidth = 1.5;
int radiusMoon = 5;
CALayer *moon = [CALayer layer];
moon.bounds = CGRectMake(0, 0, radiusMoon*2, radiusMoon*2);
moon.position = CGPointMake(radiusOrbitMoon, 0);
moon.cornerRadius = radiusMoon;
moon.backgroundColor = [UIColor yellowColor].CGColor;
[orbitMoon addSublayer:moon];
CABasicAnimation *revolutionOfMoon = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
revolutionOfMoon.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];
revolutionOfMoon.fromValue = [NSNumber numberWithFloat:0];
revolutionOfMoon.toValue = [NSNumber numberWithFloat:((360*M_PI)/180)];
revolutionOfMoon.repeatCount = HUGE_VALF;
revolutionOfMoon.duration = 2.0;
[orbitMoon addAnimation:revolutionOfMoon forKey:@"transform"];
[orbitEarth addSublayer:orbitMoon];
こんなの少し出来る人なら簡単に出来そうですけど、
少し時間かかるので自分のようなニートくらいしかやる人なんていなさそうです。
汚いソースコード失礼しました。
続きます。
