37 lines
787 B
C++
37 lines
787 B
C++
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#pragma once
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template <typename T>
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inline void clamp(T& current, T min, T max)
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{
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if (current < min) {
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current = min;
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} else if (current > max) {
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current = max;
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}
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}
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// List of numbers from min to max. Next is exponent times bigger than previous.
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class ExponentialSeries {
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public:
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ExponentialSeries(unsigned min, unsigned max, unsigned exponent = 2)
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{
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m_current = m_min = min;
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m_max = max;
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m_exponent = exponent;
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}
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void reset() { m_current = m_min; }
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unsigned operator()()
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{
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unsigned retval = m_current;
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m_current *= m_exponent;
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clamp(m_current, m_min, m_max);
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return retval;
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}
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unsigned m_current;
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unsigned m_min;
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unsigned m_max;
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unsigned m_exponent;
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};
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