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add small helper to scalar range
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@ -35,7 +35,7 @@ struct SRNG {
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}
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bool roll(float prob) {
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return zeroToOne() <= prob;
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return zeroToOne() <= prob; // TODO: just < ?
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}
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// more advanced
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@ -60,6 +60,16 @@ struct ScalarRange2 {
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[[nodiscard]] constexpr bool inRange(T&& value) const {
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return value >= min() && value <= max();
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}
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// lerp between min and max
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[[nodiscard]] constexpr T map(const float a) const {
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return min() * (1.f-a) + max() * a;
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}
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// reverse map
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[[nodiscard]] constexpr float unmap(const T& v) const {
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return (v - min()) / static_cast<float>(max() - min());
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}
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};
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} // MM
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