range.hpp

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#pragma once
 
#include "util/namedtype.hpp"
 
namespace deepnote
{
 
namespace nt
{
using RangeLow  = NamedType<float, struct RangeLowTag>;
using RangeHigh = NamedType<float, struct RangeHighTag>;
}; // namespace nt
 
struct Range
{
    Range()
        : low(0.f)
        , high(0.f)
    {
    }
 
    explicit Range(nt::RangeLow low, nt::RangeHigh high)
        : low(low.get() < high.get() ? low.get() : high.get())
        , high(high.get() > low.get() ? high.get() : low.get())
    {
    }
 
    Range(const Range &other)
        : low(other.low)
        , high(other.high)
    {
    }
 
    Range &operator=(const Range &other)
    {
        if(this != &other)
        {
            low  = other.low;
            high = other.high;
        }
        return *this;
    }
 
    nt::RangeLow get_low() const noexcept { return low; }
 
    nt::RangeHigh get_high() const noexcept { return high; }
 
    float length() const noexcept { return high.get() - low.get(); }
 
    bool contains(float value) const noexcept { return value >= low.get() && value <= high.get(); }
 
    float constrain(float value) const noexcept
    {
        if(value < low.get())
            return low.get();
        if(value > high.get())
            return high.get();
        return value;
    }
 
  private:
    nt::RangeLow  low;
    nt::RangeHigh high;
};
 
} // namespace deepnote