某鳩の音ゲー風クリックエフェクト

https://gyazo.com/a119a441abc268da625f9a8a65a7b624

一言

某鳩の音ゲー風エフェクトです。あれどうやって譜面作ってるんだろう。

code:Main.cpp

# include <Siv3D.hpp>

struct PhigrosEffect : IEffect

{

struct Particle

{

Vec2 start;

Vec2 velocity;

double alpha;

};

Array<Particle> m_particles;

Vec2 center;

explicit PhigrosEffect(const Vec2& start)

: m_particles(Random(1, 4)),

center(start)

{

for (auto& particle : m_particles)

{

const Vec2 vec = RandomVec2(40.0);

particle.start = start + vec;

particle.velocity = vec*Random(0.5,1.0);

particle.alpha = Random(0.4, 1.0);

}

}

bool update(double t) override

{

t *= 1.5;

for (const auto& particle : m_particles)

{

const Vec2 pos = particle.start

+ particle.velocity*EaseOutQuad(t);

RectF{ pos, 10.0 }.draw(ColorF(1,1,0.7,particle.alpha*(1-EaseInQuad(t))));

}

RectF{ Arg::center(center),40 + EaseOutExpo(t) * 25 }.drawFrame(2, ColorF(1, 1, 0.7, 1 - EaseInQuad(t)));

RectF{ Arg::center(center),40 + EaseOutExpo(t) * 25 }.rotated(45_deg).drawFrame(1, ColorF(1, 1, 0.7, 0.5 - EaseInQuad(t) * 0.5));

RectF{ Arg::center(center),40 + EaseOutQuart(t) * 25 }.rotated(45_deg).drawFrame(1, ColorF(1, 1, 0.7, 0.5 - EaseInQuad(t) * 0.5));

RectF{ Arg::center(center),40 + EaseOutSine(t) * 25 }.rotated(45_deg).drawFrame(1, ColorF(1, 1, 0.7, 0.5 - EaseInQuad(t) * 0.5));

Circle{ Arg::center(center),10 - EaseOutCubic(t) * 7 }.draw(ColorF(1, 1, 0.7, 1 - EaseInQuad(t)));

Circle{ Arg::center(center),10 }.draw(ColorF(1, 1, 0.7, 0.5 - EaseInQuad(t) * 0.5));

Circle{ Arg::center(center),30 }.drawArc(180_deg + t * 20_deg, 75_deg, 2.0, 0.0, ColorF(1, 1, 0.7, 1 - EaseInQuad(t)));

Circle{ Arg::center(center),30 }.drawArc(t * 20_deg, 75_deg, 2.0, 0.0, ColorF(1, 1, 0.7, 1 - EaseInQuad(t)));

return (t < 1.0);

}

};

void Main()

{

Effect effect;

while (System::Update())

{

if (MouseL.down())

{

effect.add<PhigrosEffect>(Cursor::Pos());

}

effect.update();

}

}

作者

BetAmoto