mario_step.c File Reference

#include <ultra64.h>
#include "sm64.h"
#include "engine/math_util.h"
#include "engine/surface_collision.h"
#include "mario.h"
#include "audio/external.h"
#include "display.h"
#include "interaction.h"
#include "mario_step.h"

Functions
f32	get_additive_y_vel_for_jumps (void)
	Always returns zero. More...
void	nop_80254E3C (UNUSED struct MarioState *x)
	Does nothing, but takes in a MarioState. More...
void	nop_80254E50 (void)
	Does nothing. More...
void	transfer_bully_speed (struct BullyCollisionData *obj1, struct BullyCollisionData *obj2)
void	init_bully_collision_data (struct BullyCollisionData *data, f32 posX, f32 posZ, f32 forwardVel, s16 yaw, f32 conversionRatio, f32 radius)
void	mario_bonk_reflection (struct MarioState *m, u32 negateSpeed)
u32	mario_update_quicksand (struct MarioState *m, f32 sinkingSpeed)
u32	mario_push_off_steep_floor (struct MarioState *m, u32 action, u32 actionArg)
u32	mario_update_moving_sand (struct MarioState *m)
u32	mario_update_windy_ground (struct MarioState *m)
void	stop_and_set_height_to_floor (struct MarioState *m)
s32	stationary_ground_step (struct MarioState *m)
static s32	perform_ground_quarter_step (struct MarioState *m, Vec3f nextPos)
s32	perform_ground_step (struct MarioState *m)
u32	check_ledge_grab (struct MarioState *m, struct Surface *wall, Vec3f intendedPos, Vec3f nextPos)
s32	perform_air_quarter_step (struct MarioState *m, Vec3f intendedPos, u32 stepArg)
void	apply_twirl_gravity (struct MarioState *m)
u32	should_strengthen_gravity_for_jump_ascent (struct MarioState *m)
void	apply_gravity (struct MarioState *m)
void	apply_vertical_wind (struct MarioState *m)
s32	perform_air_step (struct MarioState *m, u32 stepArg)
void	set_vel_from_pitch_and_yaw (struct MarioState *m)
void	set_vel_from_yaw (struct MarioState *m)

Variables
static s16	sMovingSandSpeeds [] = { 12, 8, 4, 0 }
struct Surface	gWaterSurfacePseudoFloor

Function Documentation

apply_gravity()

void apply_gravity

(

struct MarioState *

m

)

apply_twirl_gravity()

void apply_twirl_gravity

(

struct MarioState *

m

)

apply_vertical_wind()

void apply_vertical_wind

(

struct MarioState *

m

)

check_ledge_grab()

u32 check_ledge_grab	(	struct MarioState *	m,
		struct Surface *	wall,
		Vec3f	intendedPos,
		Vec3f	nextPos
	)

Since the search for floors starts at y + 160, we will sometimes grab

get_additive_y_vel_for_jumps()

f32 get_additive_y_vel_for_jumps

(

void

)

Always returns zero.

This may have been intended to be used for the beta trampoline. Its return value is used by set_mario_y_vel_based_on_fspeed as a constant addition to Mario's Y velocity. Given the closeness of this function to nop_80254E50, it is probable that this was intended to check whether a trampoline had made itself known through nop_80254E50 and whether Mario was on it, and if so return a higher value than 0.

init_bully_collision_data()

void init_bully_collision_data	(	struct BullyCollisionData *	data,
		f32	posX,
		f32	posZ,
		f32	forwardVel,
		s16	yaw,
		f32	conversionRatio,
		f32	radius
	)

mario_bonk_reflection()

void mario_bonk_reflection	(	struct MarioState *	m,
		u32	negateSpeed
	)

mario_push_off_steep_floor()

u32 mario_push_off_steep_floor	(	struct MarioState *	m,
		u32	action,
		u32	actionArg
	)

mario_update_moving_sand()

u32 mario_update_moving_sand

(

struct MarioState *

m

)

mario_update_quicksand()

u32 mario_update_quicksand	(	struct MarioState *	m,
		f32	sinkingSpeed
	)

mario_update_windy_ground()

u32 mario_update_windy_ground

(

struct MarioState *

m

)

nop_80254E3C()

void nop_80254E3C

(

UNUSED struct MarioState *

x

)

Does nothing, but takes in a MarioState.

This is only ever called by update_mario_inputs, which is called as part of Mario's update routine. Due to its proximity to nop_80254E50, an incomplete trampoline function, and get_additive_y_vel_for_jumps, a potentially trampoline-related function, it is plausible that this could be used for checking if Mario was on the trampoline. It could, for example, make him bounce.

nop_80254E50()

void nop_80254E50

(

void

)

Does nothing.

This is only called by the beta trampoline. Due to its proximity to get_additive_y_vel_for_jumps, another currently-pointless function, it is probable that this was used by the trampoline to make itself known to get_additive_y_vel_for_jumps, or to set a variable with its intended additive Y vel.

perform_air_quarter_step()

s32 perform_air_quarter_step	(	struct MarioState *	m,
		Vec3f	intendedPos,
		u32	stepArg
	)

The water pseudo floor is not referenced when your intended qstep is

Incorrect origin offset (no effect)

This check uses f32, but findFloor uses short (overflow jumps)

When ceilHeight - floorHeight <= 160, the step result says that

Uses referenced ceiling instead of ceil (ceiling hang upwarp)

Potential subframe downwarp->upwarp?

When the wall is not completely vertical or there is a slight wall

perform_air_step()

s32 perform_air_step	(	struct MarioState *	m,
		u32	stepArg
	)

On one qf, hit OOB/ceil/wall to store the 2 return value, and continue

perform_ground_quarter_step()

static s32 perform_ground_quarter_step ( struct MarioState *  m, Vec3f  nextPos  )

static

Wrong origin offset (no effect)

perform_ground_step()

s32 perform_ground_step

(

struct MarioState *

m

)

set_vel_from_pitch_and_yaw()

void set_vel_from_pitch_and_yaw

(

struct MarioState *

m

)

set_vel_from_yaw()

void set_vel_from_yaw

(

struct MarioState *

m

)

should_strengthen_gravity_for_jump_ascent()

u32 should_strengthen_gravity_for_jump_ascent

(

struct MarioState *

m

)

stationary_ground_step()

s32 stationary_ground_step

(

struct MarioState *

m

)

This is responsible for several stationary downwarps.

stop_and_set_height_to_floor()

void stop_and_set_height_to_floor

(

struct MarioState *

m

)

This is responsible for some downwarps.

transfer_bully_speed()

void transfer_bully_speed	(	struct BullyCollisionData *	obj1,
		struct BullyCollisionData *	obj2
	)

Bully NaN crash

Bully battery

Variable Documentation

gWaterSurfacePseudoFloor

struct Surface gWaterSurfacePseudoFloor

Initial value:

= {
    SURFACE_VERY_SLIPPERY, 0,    0,    0, 0, 0, { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 },
    { 0.0f, 1.0f, 0.0f },  0.0f, NULL,
}

sMovingSandSpeeds

s16 sMovingSandSpeeds[] = { 12, 8, 4, 0 }

static