UT_Collider Class Reference

This is a class for various primitive collisions. More...

#include <UT_Collider.h>

List of all members.

Static Public Member Functions
static int	findTimes4PointsCoplanar (const UT_Vector3 *pos[4], const UT_Vector3 *vels[4], fpreal times[3], fpreal timestep)
static int	findTimes3PointsCollinear (const UT_Vector3 *pos[3], const UT_Vector3 *vels[3], fpreal times[2], fpreal timestep)
static int	findTimes2CollinearPointsCoincident (const UT_Vector3 &pos0, const UT_Vector3 &pos1, const UT_Vector3 &vel0, const UT_Vector3 &vel1, fpreal &time, fpreal timestep, fpreal dist)
static int	collideMovingPoints (const UT_Vector3 &pos1, const UT_Vector3 &pos2, const UT_Vector3 &vel1, const UT_Vector3 &vel2, fpreal &time, fpreal timestep, fpreal dist)
static int	collideMovingPointLine (const UT_Vector3 &pos0, const UT_Vector3 &pos1, const UT_Vector3 &pos2, const UT_Vector3 &vel0, const UT_Vector3 &vel1, const UT_Vector3 &vel2, fpreal &time, fpreal timestep, fpreal dist)
static int	collideMovingLineLine (const UT_Vector3 &pos0, const UT_Vector3 &pos1, const UT_Vector3 &pos2, const UT_Vector3 &pos3, const UT_Vector3 &vel0, const UT_Vector3 &vel1, const UT_Vector3 &vel2, const UT_Vector3 &vel3, fpreal &time, fpreal timestep, fpreal dist)

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Detailed Description

This is a class for various primitive collisions.

Definition at line 27 of file UT_Collider.h.

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Member Function Documentation

static int UT_Collider::collideMovingLineLine	(	const UT_Vector3 &	pos0,
		const UT_Vector3 &	pos1,
		const UT_Vector3 &	pos2,
		const UT_Vector3 &	pos3,
		const UT_Vector3 &	vel0,
		const UT_Vector3 &	vel1,
		const UT_Vector3 &	vel2,
		const UT_Vector3 &	vel3,
		fpreal &	time,
		fpreal	timestep,
		fpreal	dist
	)			[static]

Finds the first time when the given lines are within dist of eachother. Only returns times between 0 and timestep. Returns the number of times found (max of 1), or -1 if the lines are exactly dist away for the entire timestep. <pos0, pos1> forms one line, <pos2, pos3> forms the other

static int UT_Collider::collideMovingPointLine	(	const UT_Vector3 &	pos0,
		const UT_Vector3 &	pos1,
		const UT_Vector3 &	pos2,
		const UT_Vector3 &	vel0,
		const UT_Vector3 &	vel1,
		const UT_Vector3 &	vel2,
		fpreal &	time,
		fpreal	timestep,
		fpreal	dist
	)			[static]

Finds the first time when the given point and line are within dist. Only returns times between 0 and timestep. Returns the number of times found (max of 1), or -1 if the point and the line are exactly dist away for the entire timestep. pos0 is the point.

static int UT_Collider::collideMovingPoints	(	const UT_Vector3 &	pos1,
		const UT_Vector3 &	pos2,
		const UT_Vector3 &	vel1,
		const UT_Vector3 &	vel2,
		fpreal &	time,
		fpreal	timestep,
		fpreal	dist
	)			[static]

Finds the first time when the given two moving points are within dist. Only returns times between 0 and timestep. Returns the number of times found (either 0 or 1). Warning: I'm not convinced this works for dist != 0. ... and in fact, it's probably fragile for dist != 0 too.

static int UT_Collider::findTimes2CollinearPointsCoincident	(	const UT_Vector3 &	pos0,
		const UT_Vector3 &	pos1,
		const UT_Vector3 &	vel0,
		const UT_Vector3 &	vel1,
		fpreal &	time,
		fpreal	timestep,
		fpreal	dist
	)			[static]

Finds the first time when the given two moving points are within dist. Only returns times between 0 and timestep. Returns the number of times found (either 0 or 1).

Requires two points to be collinear for entire timestep, which makes it simpler and more robust than collideMovingPoints.

static int UT_Collider::findTimes3PointsCollinear	(	const UT_Vector3 *	pos[3],
		const UT_Vector3 *	vels[3],
		fpreal	times[2],
		fpreal	timestep
	)			[static]

Find times when the three given moving points are collinear. Only returns times between 0 and timestep. Returns the number of times found (maximum of two), or -1 if the points are collinear for the entire timestep.

static int UT_Collider::findTimes4PointsCoplanar	(	const UT_Vector3 *	pos[4],
		const UT_Vector3 *	vels[4],
		fpreal	times[3],
		fpreal	timestep
	)			[static]

Find times when the given four moving points are coplanar. Only returns times between 0 and timestep. Returns the number of times found (maximum of three), or -1 if the points are coplanar for the entire timestep.

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The documentation for this class was generated from the following file:

• UT/UT_Collider.h