collision.h File Reference

#include <common_structs.h>

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Macros
#define	COLLISION   0x1
#define	NO_COLLISION   0x0

Functions
void	nullify_displaylist (uintptr_t)
void	func_802AAAAC (Collision *)
f32	get_water_level (Player *)
s32	check_collision_zx (Collision *, f32, f32, f32, f32, u16)
s32	check_collision_yx (Collision *, f32, f32, f32, f32, u16)
s32	check_collision_zy (Collision *, f32, f32, f32, f32, u16)
s8	get_surface_type (u16)
s16	get_track_section_id (u16)
s16	func_802ABD7C (u16)
s16	func_802ABDB8 (u16)
s16	func_802ABDF4 (u16)
f32	calculate_surface_height (f32, f32, f32, u16)
f32	func_802ABEAC (Collision *, Vec3f)
void	shell_collision (Collision *, Vec3f)
void	process_shell_collision (Vec3f, f32, Vec3f, f32)
u16	player_terrain_collision (Player *, KartTyre *, f32, f32, f32)
void	adjust_pos_orthogonally (Vec3f, f32, Vec3f, f32)
s32	detect_tyre_collision (KartTyre *)
u16	actor_terrain_collision (Collision *, f32, f32, f32, f32, f32, f32, f32)
u16	check_bounding_collision (Collision *, f32, f32, f32, f32)
f32	spawn_actor_on_surface (f32, f32, f32)
void	set_vtx_buffer (uintptr_t, u32, u32)
s32	is_line_intersecting_rectangle (s16, s16, s16, s16, s16, s16, s16, s16)
s32	is_triangle_intersecting_bounding_box (s16, s16, s16, s16, u16)
void	generate_collision_grid (void)
void	generate_collision_mesh_with_defaults (Gfx *)
void	generate_collision_mesh_with_default_section_id (Gfx *, s8)
void	generate_collision_mesh (Gfx *, s8, u16)
void	find_and_set_tile_size (uintptr_t, s32, s32)
void	set_vertex_colours (uintptr_t, u32, s32, s8, u8, u8, u8)
void	find_vtx_and_set_colours (Gfx *, s8, u8, u8, u8)
void	subtract_scaled_vector (Vec3f, f32, Vec3f)

Macro Definition Documentation

COLLISION

#define COLLISION   0x1

NO_COLLISION

#define NO_COLLISION   0x0

Function Documentation

actor_terrain_collision()

u16 actor_terrain_collision	(	Collision *	collision,
		f32	boundingBoxSize,
		f32	newX,
		f32	newY,
		f32	newZ,
		f32	oldX,
		f32	oldY,
		f32	oldZ )

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adjust_pos_orthogonally()

void adjust_pos_orthogonally	(	Vec3f	,
		f32	,
		Vec3f	,
		f32	)

calculate_surface_height()

f32 calculate_surface_height	(	f32	x,
		f32	y,
		f32	z,
		u16	index )

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check_bounding_collision()

u16 check_bounding_collision	(	Collision *	collision,
		f32	boundingBoxSize,
		f32	posX,
		f32	posY,
		f32	posZ )

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check_collision_yx()

s32 check_collision_yx	(	Collision *	collision,
		f32	boundingBoxSize,
		f32	posX,
		f32	posY,
		f32	posZ,
		u16	index )

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check_collision_zx()

s32 check_collision_zx	(	Collision *	collision,
		f32	boundingBoxSize,
		f32	posX,
		f32	posY,
		f32	posZ,
		u16	index )

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check_collision_zy()

s32 check_collision_zy	(	Collision *	collision,
		f32	boundingBoxSize,
		f32	posX,
		f32	posY,
		f32	posZ,
		u16	index )

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detect_tyre_collision()

s32 detect_tyre_collision

(

KartTyre *

tyre

)

Bug

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find_and_set_tile_size()

void find_and_set_tile_size	(	uintptr_t	addr,
		s32	uls,
		s32	ult )

Search for G_SETTILESIZE and set its args.

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find_vtx_and_set_colours()

void find_vtx_and_set_colours	(	Gfx *	displayList,
		s8	alpha,
		u8	red,
		u8	green,
		u8	blue )

Recursive search for vertices and set their colour values.

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func_802AAAAC()

void func_802AAAAC

(

Collision *

collision

)

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func_802ABD7C()

s16 func_802ABD7C

(

u16

index

)

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func_802ABDB8()

s16 func_802ABDB8

(

u16

index

)

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func_802ABDF4()

s16 func_802ABDF4

(

u16

index

)

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func_802ABEAC()

f32 func_802ABEAC	(	Collision *	collision,
		Vec3f	pos )

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generate_collision_grid()

void generate_collision_grid

(

void

)

Splits the collision mesh into 32x32 sections. This allows the game to check only nearby geography for a collision rather than checking against the whole collision mesh. (checking against the whole mesh for every actor would be expensive)

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generate_collision_mesh()

void generate_collision_mesh	(	Gfx *	addr,
		s8	surfaceType,
		u16	sectionId )

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generate_collision_mesh_with_default_section_id()

void generate_collision_mesh_with_default_section_id	(	Gfx *	gfx,
		s8	surfaceType )

Recursive search for vtx and set sectionId's to 0xFF

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generate_collision_mesh_with_defaults()

void generate_collision_mesh_with_defaults

(

Gfx *

gfx

)

Recursive search for vtx and set surfaceTypes to -1 and sectionId's to 0xFF

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get_surface_type()

s8 get_surface_type

(

u16

index

)

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get_track_section_id()

s16 get_track_section_id

(

u16

index

)

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get_water_level()

f32 get_water_level

(

Player *

player

)

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is_line_intersecting_rectangle()

s32 is_line_intersecting_rectangle	(	s16	minX,
		s16	maxX,
		s16	minZ,
		s16	maxZ,
		s16	x1,
		s16	z1,
		s16	x2,
		s16	z2 )

Returns

1 intersecting triangle, 0 not intersecting.

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is_triangle_intersecting_bounding_box()

s32 is_triangle_intersecting_bounding_box	(	s16	minX,
		s16	maxX,
		s16	minZ,
		s16	maxZ,
		u16	index )

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nullify_displaylist()

void nullify_displaylist

(

uintptr_t

addr

)

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player_terrain_collision()

u16 player_terrain_collision	(	Player *	player,
		KartTyre *	tyre,
		f32	tyre2X,
		f32	tyre2Y,
		f32	tyre2Z )

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process_shell_collision()

void process_shell_collision	(	Vec3f	,
		f32	,
		Vec3f	,
		f32	)

set_vertex_colours()

void set_vertex_colours	(	uintptr_t	,
		u32	,
		s32	,
		s8	,
		u8	,
		u8	,
		u8	)

set_vtx_buffer()

void set_vtx_buffer	(	uintptr_t	addr,
		u32	numVertices,
		u32	bufferIndex )

Generates a list of pointers to course vtx.

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shell_collision()

void shell_collision	(	Collision *	collision,
		Vec3f	velocity )

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spawn_actor_on_surface()

f32 spawn_actor_on_surface	(	f32	posX,
		f32	posY,
		f32	posZ )

If unable to spawn actor on the surface set to -3000.0f or if outside the collision grid, spawn in the air (3000.0f).

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subtract_scaled_vector()

void subtract_scaled_vector	(	Vec3f	pos1,
		f32	boundingBoxSize,
		Vec3f	pos2 )

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