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36 lines
1.1 KiB
36 lines
1.1 KiB
#pragma once
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#include <array>
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#include <vector>
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#include <cstdint>
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/// Base class for RNG impls
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struct RNG {
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virtual unsigned char byte();
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virtual void bytes(unsigned char* ptr, std::size_t len);
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template<std::size_t N>
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inline void bytes(unsigned char (&arr)[N]) { return bytes(arr, N); }
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template<std::size_t N>
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inline void bytes(std::array<unsigned char, N>& array) { return bytes(&array[0], N); }
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inline void bytes(std::vector<unsigned char>& vec) { return bytes(&vec[0], vec.size()); }
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bool chance();
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virtual bool chance(double chance);
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virtual std::int32_t next_int();
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inline std::int32_t next_int(std::int32_t max) { return next_int(0, max); }
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std::int32_t next_int(std::int32_t min, std::int32_t max);
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virtual std::int64_t next_long();
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inline std::int64_t next_long(std::int64_t max) { return next_long(0, max); }
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std::int64_t next_long(std::int64_t min, std::int64_t max);
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inline virtual float next_float() { return (float)sample(); }
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inline virtual double next_double() { return sample(); }
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virtual ~RNG() = default;
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protected:
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virtual double sample() = 0;
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};
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