MCL::XorShift32 Struct Reference

Public Member Functions
	XorShift32 (uint32_t seed=pros::micros())
uint32_t	next_u32 ()
float	next_f32 ()
float	uniform (float lo, float hi)
float	gaussian (float std_dev)

Public Attributes
uint32_t	state

Detailed Description

Definition at line 54 of file MCL.cpp.

Constructor & Destructor Documentation

XorShift32()

MCL::XorShift32::XorShift32 ( uint32_t seed = pros::micros() )

inlineexplicit

Definition at line 56 of file MCL.cpp.

            : state(seed == 0 ? 0x12345678u : seed) {}

References state.

Member Function Documentation

gaussian()

float MCL::XorShift32::gaussian ( float std_dev )

inline

Definition at line 65 of file MCL.cpp.

                                             {
            const float u1 = std::max(next_f32(), 1e-12f);
            const float u2 = next_f32();
            return std_dev * std::sqrt(-2.0f * std::log(u1))
                           * std::cos(2.0f * (float)M_PI * u2);
        }

References next_f32().

next_f32()

float MCL::XorShift32::next_f32 ( )

inline

Definition at line 63 of file MCL.cpp.

{ return (next_u32() >> 8) * (1.0f / (1u << 24)); }

References next_u32().

Referenced by gaussian(), and uniform().

next_u32()

uint32_t MCL::XorShift32::next_u32 ( )

inline

Definition at line 58 of file MCL.cpp.

                                   {
            uint32_t x = state;
            x ^= x << 13; x ^= x >> 17; x ^= x << 5;
            return state = x;
        }

References state.

Referenced by next_f32().

uniform()

float MCL::XorShift32::uniform ( float lo, float hi )

inline

Definition at line 64 of file MCL.cpp.

{ return lo + next_f32() * (hi - lo); }

References next_f32().

Member Data Documentation

state

uint32_t MCL::XorShift32::state

Definition at line 55 of file MCL.cpp.

Referenced by XorShift32(), and next_u32().

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The documentation for this struct was generated from the following file:

• src/localization/MCL.cpp