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March 17, 2023 23:19
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# include <Siv3D.hpp> // OpenSiv3D v0.6.6 | |
namespace s3d | |
{ | |
namespace Periodic | |
{ | |
/// @brief 矩形波に従って、周期的に [0.0, 1.0] の値を返します。 | |
/// @param periodSec 周期(秒) | |
/// @param dutyCycle デューティー比、周期内で波形の大きさが 1.0 である時間の割合 | |
/// @param t 経過時間(秒) | |
/// @return [0.0, 1.0] の範囲の値 | |
[[nodiscard]] | |
double Pulse0_1(double periodSec, double dutyCycle, double t = Scene::Time()) noexcept; | |
/// @brief 矩形波に従って、周期的に [0.0, 1.0] の値を返します。 | |
/// @param periodSec 周期(秒) | |
/// @param dutyCycle デューティー比、周期内で波形の大きさが 1.0 である時間の割合 | |
/// @param t 経過時間(秒) | |
/// @return [0.0, 1.0] の範囲の値 | |
[[nodiscard]] | |
double Pulse0_1(const Duration& period, double dutyCycle, double t = Scene::Time()) noexcept; | |
/// @brief 矩形波に従って、周期的に [-1.0, 1.0] の値を返します。 | |
/// @param periodSec 周期(秒) | |
/// @param dutyCycle デューティー比、周期内で波形の大きさが 1.0 である時間の割合 | |
/// @param t 経過時間(秒) | |
/// @return [0.0, 1.0] の範囲の値 | |
[[nodiscard]] | |
double Pulse1_1(double periodSec, double dutyCycle, double t = Scene::Time()) noexcept; | |
/// @brief 矩形波に従って、周期的に [-1.0, 1.0] の値を返します。 | |
/// @param periodSec 周期(秒) | |
/// @param dutyCycle デューティー比、周期内で波形の大きさが 1.0 である時間の割合 | |
/// @param t 経過時間(秒) | |
/// @return [0.0, 1.0] の範囲の値 | |
[[nodiscard]] | |
double Pulse1_1(const Duration& period, double dutyCycle, double t = Scene::Time()) noexcept; | |
} | |
namespace Periodic | |
{ | |
double Pulse0_1(double periodSec, double dutyCycle, const double t) noexcept | |
{ | |
return (std::fmod(t, periodSec) < (periodSec * dutyCycle)) ? 1.0 : 0.0; | |
} | |
double Pulse0_1(const Duration& period, double dutyCycle, const double t) noexcept | |
{ | |
return Pulse0_1(period.count(), dutyCycle, t); | |
} | |
double Pulse1_1(const double periodSec, double dutyCycle, const double t) noexcept | |
{ | |
return (std::fmod(t, periodSec) < (periodSec * dutyCycle)) ? 1.0 : -1.0; | |
} | |
double Pulse1_1(const Duration& period, double dutyCycle, const double t) noexcept | |
{ | |
return Pulse1_1(period.count(), dutyCycle, t); | |
} | |
} | |
} | |
void Main() | |
{ | |
Scene::SetBackground(ColorF{ 0.1 }); | |
while (System::Update()) | |
{ | |
constexpr int N = 800; | |
for (int i : step(N)) | |
{ | |
const double t0 = i / static_cast<double>(N); | |
const double t1 = (i + 1) / static_cast<double>(N); | |
Line{ | |
i, | |
150 - 100 * Periodic::Pulse0_1(0.1s, 0.75, t0) * Periodic::Sawtooth0_1(0.1s, t0), | |
i + 1, | |
150 - 100 * Periodic::Pulse0_1(0.1s, 0.75, t1) * Periodic::Sawtooth0_1(0.1s, t1), | |
}.draw(); | |
Line{ | |
i, | |
350 - 100 * Periodic::Pulse0_1(0.1s, 0.75, t0) * Periodic::Triangle0_1(0.1s, t0), | |
i + 1, | |
350 - 100 * Periodic::Pulse0_1(0.1s, 0.75, t1) * Periodic::Triangle0_1(0.1s, t1), | |
}.draw(); | |
Line{ | |
i, | |
550 - 100 * Periodic::Pulse0_1(0.1s, 0.75, t0) * Periodic::Jump0_1(0.1s, t0), | |
i + 1, | |
550 - 100 * Periodic::Pulse0_1(0.1s, 0.75, t1) * Periodic::Jump0_1(0.1s, t1), | |
}.draw(); | |
} | |
} | |
} |
Author
voidproc
commented
Mar 17, 2023
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