collision.h File Reference

#include "irrlichttypes_bloated.h"
#include <vector>

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Classes
struct	CollisionInfo
struct	collisionMoveResult

Enumerations
enum	CollisionType : u8 { COLLISION_NODE , COLLISION_OBJECT }
enum	CollisionAxis : s8 { COLLISION_AXIS_NONE = -1 , COLLISION_AXIS_X , COLLISION_AXIS_Y , COLLISION_AXIS_Z }

Functions
collisionMoveResult	collisionMoveSimple (Environment *env, IGameDef *gamedef, const aabb3f &box_0, f32 stepheight, f32 dtime, v3f *pos_f, v3f *speed_f, v3f accel_f, ActiveObject *self=NULL, bool collide_with_objects=true)
bool	collision_check_intersection (Environment *env, IGameDef *gamedef, const aabb3f &box_0, const v3f &pos_f, ActiveObject *self=nullptr, bool collide_with_objects=true)
	A simpler version of "collisionMoveSimple" that only checks whether a collision occurs at the given position.
CollisionAxis	axisAlignedCollision (const aabb3f &staticbox, const aabb3f &movingbox, v3f speed, f32 *dtime)
bool	wouldCollideWithCeiling (const std::vector< aabb3f > &staticboxes, const aabb3f &movingbox, f32 y_increase, f32 d)

Variables
bool	g_collision_problems_encountered
	Status if any problems were ever encountered during collision detection.

Enumeration Type Documentation

CollisionAxis

enum CollisionAxis : s8

Enumerator
COLLISION_AXIS_NONE
COLLISION_AXIS_X
COLLISION_AXIS_Y
COLLISION_AXIS_Z

CollisionType

enum CollisionType : u8

Enumerator
COLLISION_NODE
COLLISION_OBJECT

Function Documentation

axisAlignedCollision()

CollisionAxis axisAlignedCollision	(	const aabb3f &	staticbox,
		const aabb3f &	movingbox,
		v3f	speed,
		f32 *	dtime )

References COLLISION_AXIS_NONE, COLLISION_AXIS_X, COLLISION_AXIS_Y, and COLLISION_AXIS_Z.

Referenced by collisionMoveSimple(), and TestCollision::testAxisAlignedCollision().

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collision_check_intersection()

bool collision_check_intersection	(	Environment *	env,
		IGameDef *	gamedef,
		const aabb3f &	box_0,
		const v3f &	pos_f,
		ActiveObject *	self = nullptr,
		bool	collide_with_objects = true )

A simpler version of "collisionMoveSimple" that only checks whether a collision occurs at the given position.

Parameters

self	(optional) ActiveObject to ignore in the collision detection.

Returns

true when box_0 truly intersects with a node or object. Touching faces are not counted as intersection.

References add_area_node_boxes(), add_object_boxes(), BS, floatToInt(), g_profiler, PRECISION_MICRO, PROFILER_NAME, and SPT_AVG.

Referenced by LocalPlayer::move().

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collisionMoveSimple()

collisionMoveResult collisionMoveSimple	(	Environment *	env,
		IGameDef *	gamedef,
		const aabb3f &	box_0,
		f32	stepheight,
		f32	dtime,
		v3f *	pos_f,
		v3f *	speed_f,
		v3f	accel_f,
		ActiveObject *	self = NULL,
		bool	collide_with_objects = true )

Parameters

self	(optional) ActiveObject to ignore in the collision detection.

References add_area_node_boxes(), add_object_boxes(), CollisionInfo::axis, axisAlignedCollision(), BS, collisionMoveResult::collides, COLLISION_AXIS_NONE, COLLISION_AXIS_X, COLLISION_AXIS_Y, COLLISION_AXIS_Z, COLLISION_NODE, COLLISION_OBJECT, collisionMoveResult::collisions, DTIME_LIMIT, floatToInt(), g_collision_problems_encountered, g_profiler, MYMAX, MYMIN, CollisionInfo::new_pos, CollisionInfo::new_speed, CollisionInfo::node_p, CollisionInfo::object, CollisionInfo::old_speed, PRECISION_MICRO, PROFILER_NAME, rangelim, SPT_AVG, collisionMoveResult::standing_on_object, collisionMoveResult::touching_ground, CollisionInfo::type, warningstream, and wouldCollideWithCeiling().

Referenced by LocalPlayer::handleAutojump(), LocalPlayer::move(), LocalPlayer::old_move(), GenericCAO::step(), LuaEntitySAO::step(), Particle::step(), and TestCollision::testCollisionMoveSimple().

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wouldCollideWithCeiling()

bool wouldCollideWithCeiling	(	const std::vector< aabb3f > &	staticboxes,
		const aabb3f &	movingbox,
		f32	y_increase,
		f32	d )

Variable Documentation

g_collision_problems_encountered

bool g_collision_problems_encountered

extern

Status if any problems were ever encountered during collision detection.

Warning

For unit test use only.

Referenced by collisionMoveSimple(), and TestCollision::testCollisionMoveSimple().