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