c_lib.cpp File Reference

Functions
void	cLib_memCpy (void *dst, const void *src, unsigned long num)
void	cLib_memSet (void *ptr, int value, unsigned long num)
f32	cLib_addCalc (f32 *pvalue, f32 target, f32 scale, f32 maxStep, f32 minStep)
void	cLib_addCalc2 (f32 *pvalue, f32 target, f32 scale, f32 maxStep)
void	cLib_addCalc0 (f32 *pvalue, f32 scale, f32 maxStep)
f32	cLib_addCalcPos (cXyz *ppos, const cXyz &target, f32 scale, f32 maxStep, f32 minStep)
f32	cLib_addCalcPosXZ (cXyz *ppos, const cXyz &target, f32 scale, f32 maxStep, f32 minStep)
void	cLib_addCalcPos2 (cXyz *ppos, const cXyz &target, f32 scale, f32 maxStep)
void	cLib_addCalcPosXZ2 (cXyz *ppos, const cXyz &target, f32 scale, f32 maxStep)
s16	cLib_addCalcAngleS (s16 *pvalue, s16 target, s16 scale, s16 maxStep, s16 minStep)
void	cLib_addCalcAngleS2 (s16 *pvalue, s16 target, s16 scale, s16 maxStep)
int	cLib_chaseUC (u8 *pvalue, u8 target, u8 step)
int	cLib_chaseS (s16 *pvalue, s16 target, s16 step)
int	cLib_chaseF (f32 *pvalue, f32 target, f32 step)
int	cLib_chasePos (cXyz *pvalue, const cXyz &target, f32 step)
int	cLib_chasePosXZ (cXyz *pvalue, const cXyz &target, f32 step)
int	cLib_chaseAngleS (s16 *pvalue, s16 target, s16 step)
s16	cLib_targetAngleY (const Vec *lhs, const Vec *rhs)
s16	cLib_targetAngleY (const Vec &lhs, const Vec &rhs)
s16	cLib_targetAngleX (cXyz const *lhs, cXyz const *rhs)
void	cLib_offsetPos (cXyz *pdest, cXyz const *psrc, s16 angle, cXyz const *vec)
s32	cLib_distanceAngleS (s16 x, s16 y)
void	MtxInit ()
void	MtxTrans (f32 x_trans, f32 y_trans, f32 z_trans, u8 param_3)
void	MtxScale (f32 x_trans, f32 y_trans, f32 z_trans, u8 param_3)
void	MtxPosition (cXyz *src, cXyz *dest)
void	MtxPush ()
Mtx *	MtxPull ()

Variables
static Mtx	mtx [10]
Mtx *	calc_mtx = mtx

Function Documentation

cLib_addCalc()

f32 cLib_addCalc	(	f32 *	pvalue,
		f32	target,
		f32	scale,
		f32	maxStep,
		f32	minStep
	)

Changes value by step towards target. Step amount is clamped between a min and max, and scaled as a fraction of the remaining distance.

Parameters

pvalue	Pointer to value to change
target	Target to move value towards
scale	Fraction of remaining distance to scale step by
maxStep	Maximum step amount
minStep	Minimum step amount

Returns

The absolute value of remaining distance to target

cLib_addCalc0()

void cLib_addCalc0	(	f32 *	pvalue,
		f32	scale,
		f32	maxStep
	)

Changes value by step towards zero. Step amount is clamped between a max and -max, and scaled as a fraction of the remaining distance.

Parameters

pvalue	Pointer to value to change
scale	Fraction of remaining distance to scale step by
maxStep	Maximum (+/-) step amount

cLib_addCalc2()

void cLib_addCalc2	(	f32 *	pvalue,
		f32	target,
		f32	scale,
		f32	maxStep
	)

Changes value by step towards target. Step amount is clamped between a max and -max, and scaled as a fraction of the remaining distance.

Parameters

pvalue	Pointer to value to change
target	Target to move value towards
scale	Fraction of remaining distance to scale step by
maxStep	Maximum (+/-) step amount

cLib_addCalcAngleS()

s16 cLib_addCalcAngleS	(	s16 *	pvalue,
		s16	target,
		s16	scale,
		s16	maxStep,
		s16	minStep
	)

Changes angle value by step towards target. Step amount is clamped between a min and max, and scaled as a fraction of the remaining distance.

Parameters

pvalue	Pointer to angle value to change
target	Target angle to move value towards
scale	Fraction of remaining distance to scale step by
maxStep	Maximum step amount
minStep	Minimum step amount

Returns

The remaining distance to target

cLib_addCalcAngleS2()

void cLib_addCalcAngleS2	(	s16 *	pvalue,
		s16	target,
		s16	scale,
		s16	maxStep
	)

Changes angle value by step towards target angle. Step amount is clamped between a max and -max and scaled as a fraction of the remaining distance.

Parameters

pvalue	Pointer to angle value to change
target	Target angle to move value towards
scale	Fraction of remaining distance to scale step by
maxStep	Maximum (+/-) step amount

cLib_addCalcPos()

f32 cLib_addCalcPos	(	cXyz *	ppos,
		const cXyz &	target,
		f32	scale,
		f32	maxStep,
		f32	minStep
	)

Changes position by step towards target position. Step amount is clamped between a min and max, and scaled as a fraction of the remaining distance.

Parameters

ppos	Pointer to position to change
target	Target position to move towards
scale	Fraction of remaining distance to scale step by
maxStep	Maximum step amount
minStep	Minimum step amount

Returns

The absolute value of remaining distance to target

cLib_addCalcPos2()

void cLib_addCalcPos2	(	cXyz *	ppos,
		const cXyz &	target,
		f32	scale,
		f32	maxStep
	)

Changes position by step towards target position. Step amount is clamped between a max and -max and scaled as a fraction of the remaining distance.

Parameters

ppos	Pointer to position to change
target	Target position to move value towards
scale	Fraction of remaining distance to scale step by
maxStep	Maximum (+/-) step amount

cLib_addCalcPosXZ()

f32 cLib_addCalcPosXZ	(	cXyz *	ppos,
		const cXyz &	target,
		f32	scale,
		f32	maxStep,
		f32	minStep
	)

Changes position's X/Z components by step towards target position. Step amount is clamped between a min and max, and scaled as a fraction of the remaining distance.

Parameters

ppos	Pointer to position to change
target	Target position to move towards
scale	Fraction of remaining distance to scale step by
maxStep	Maximum step amount
minStep	Minimum step amount

Returns

The absolute value of remaining distance to target

cLib_addCalcPosXZ2()

void cLib_addCalcPosXZ2	(	cXyz *	ppos,
		const cXyz &	target,
		f32	scale,
		f32	maxStep
	)

Changes position's X/Z components by step towards target position. Step amount is clamped between a max and -max and scaled as a fraction of the remaining distance.

Parameters

ppos	Pointer to position to change
target	Target position to move value towards
scale	Fraction of remaining distance to scale step by
maxStep	Maximum (+/-) step amount

cLib_chaseAngleS()

int cLib_chaseAngleS	(	s16 *	pvalue,
		s16	target,
		s16	step
	)

Changes angle value by step towards target

Parameters

pvalue	Pointer to value to change
target	Target to move value towards
step	Step amount

Returns

TRUE when target is reached, FALSE otherwise

cLib_chaseF()

int cLib_chaseF	(	f32 *	pvalue,
		f32	target,
		f32	step
	)

Changes float value by step towards target

Parameters

pvalue	Pointer to value to change
target	Target to move value towards
step	Step amount

Returns

TRUE when target is reached, FALSE otherwise

cLib_chasePos()

int cLib_chasePos	(	cXyz *	pvalue,
		const cXyz &	target,
		f32	step
	)

Changes position by step towards target

Parameters

pvalue	Pointer to position to change
target	Target position to move towards
step	Step amount

Returns

TRUE when target is reached, FALSE otherwise

cLib_chasePosXZ()

int cLib_chasePosXZ	(	cXyz *	pvalue,
		const cXyz &	target,
		f32	step
	)

Changes position's X/Z components by step towards target

Parameters

pvalue	Pointer to position to change
target	Target position to move towards
step	Step amount

Returns

TRUE when target is reached, FALSE otherwise

cLib_chaseS()

int cLib_chaseS	(	s16 *	pvalue,
		s16	target,
		s16	step
	)

Changes signed short value by step towards target

Parameters

pvalue	Pointer to value to change
target	Target to move value towards
step	Step amount

Returns

TRUE when target is reached, FALSE otherwise

cLib_chaseUC()

int cLib_chaseUC	(	u8 *	pvalue,
		u8	target,
		u8	step
	)

Changes unsigned char value by step towards target

Parameters

pvalue	Pointer to value to change
target	Target to move value towards
step	Step amount

Returns

TRUE when target is reached, FALSE otherwise

cLib_distanceAngleS()

s32 cLib_distanceAngleS	(	s16	x,
		s16	y
	)

Gets the target x-angle from position A to position B

Parameters

lhs	Pointer to position A
rhs	Pointer to position B

Returns

X-Angle from position A to position B

cLib_memCpy()

void cLib_memCpy	(	void *	dst,
		const void *	src,
		unsigned long	num
	)

c_lib.cpp Copies a source block of memory to a destination block of memory

Parameters

dst	Pointer to destination memory
src	Pointer to source data to be copied
num	Number of bytes to copy

cLib_memSet()

void cLib_memSet	(	void *	ptr,
		int	value,
		unsigned long	num
	)

Sets the first num bytes of given block of memory to specified value

Parameters

ptr	Pointer to block of memory
value	Value to be set
num	Number of bytes to set

cLib_offsetPos()

void cLib_offsetPos	(	cXyz *	pdest,
		cXyz const *	psrc,
		s16	angle,
		cXyz const *	vec
	)

Adds an offset to a source position in a given angle direction and places the result in pdest

Parameters

pdest	The resulting position
psrc	The source position
angle	The direction to offset psrc in
vec	The offset cXyz to add to psrc

cLib_targetAngleX()

s16 cLib_targetAngleX	(	cXyz const *	lhs,
		cXyz const *	rhs
	)

Gets the target x-angle from position A to position B

Parameters

lhs	Pointer to position A
rhs	Pointer to position B

Returns

X-Angle from position A to position B

cLib_targetAngleY() [1/2]

s16 cLib_targetAngleY	(	const Vec &	lhs,
		const Vec &	rhs
	)

Gets the target y-angle from position A to position B

Parameters

lhs	Reference to position A
rhs	Reference to position B

Returns

Y-angle from position A to position B

cLib_targetAngleY() [2/2]

s16 cLib_targetAngleY	(	const Vec *	lhs,
		const Vec *	rhs
	)

Gets the target y-angle from position A to position B

Parameters

lhs	Pointer to position A
rhs	Pointer to position B

Returns

Y-angle from position A to position B

MtxInit()

void MtxInit

(

void

)

Initializes calc_mtx to mtx stack

MtxPosition()

void MtxPosition	(	cXyz *	src,
		cXyz *	dest
	)

Multiplies a src position by the calc_mtx and puts the result in dest

Parameters

src	The src position to be multiplied
dest	The resulting multiplied position

MtxPull()

Mtx * MtxPull

(

void

)

MtxPush()

void MtxPush

(

void

)

MtxScale()

void MtxScale	(	f32	x_trans,
		f32	y_trans,
		f32	z_trans,
		u8	param_3
	)

MtxTrans()

void MtxTrans	(	f32	x_trans,
		f32	y_trans,
		f32	z_trans,
		u8	param_3
	)

Variable Documentation

calc_mtx

Mtx* calc_mtx = mtx

mtx

Mtx mtx[10]

static