User:Monster Iestyn/Source Code Documentation/m_random.c

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Online link	GitHub entry
File type	C source file

Includes

• doomdef.h
• doomtype.h
• doomstat.h
• m_random.h
• m_fixed.h

Variables

Key:

PRNG

Name	Type	Default	Attributes	Description
randomseed	UINT32	0xBADE4404	static	Holds the current seed
initialseed	UINT32	0xBADE4404	static	Holds the initial seed

Functions

Key:

RNG

PRNG

PRNG (seed management/debugging)

Function name	Return type	Params	Attributes	Description
M_RandomFixed	fixed_t	none		Returns a random fixed point number between 0 and FRACUNIT-1
M_RandomByte	UINT8	none		Returns a random byte (number between 0 and 255)
M_RandomKey	INT32	INT32 a		Returns a random number between 0 and a-1
M_RandomRange	INT32	INT32 a, INT32 b		Returns a random number from a range (between a and b)
__internal_prng__	fixed_t	none	ATTRINLINE, static, FUNCINLINE	Returns a random fixed point number between 0 and FRACUNIT-1
P_RandomFixed	fixed_t	none		Returns a random fixed point number between 0 and FRACUNIT-1 (wrapper for __internal_prng__)
P_RandomByte	UINT8	none		Returns a random byte (number between 0 and 255)
P_RandomKey	INT32	INT32 a		Returns a random number between 0 and a-1
P_RandomRange	INT32	INT32 a, INT32 b		Returns a random number from a range (between a and b)
P_RandomPeek	fixed_t	none		Returns a random byte without modifying randomseed
P_GetRandSeed	UINT32	none		Returns the current random seed
P_GetInitSeed	UINT32	none		Returns the initial random seed
P_SetRandSeed	void	UINT32 seed		Sets the random seed
M_RandomizedSeed	UINT32	none		Gets a randomized seed for setting the random seed