Dubious::Physics::Collision_solver Class Reference

Collision solver that implements GJK. More...

#include <Collision_solver.h>

Public Member Functions
	Collision_solver ()=default
	Default constructor. More...
	Collision_solver (const Collision_solver &)=delete
Collision_solver &	operator= (const Collision_solver &)=delete
bool	intersection (const Physics_object &a, const Physics_object &b, std::vector< Contact_manifold::Contact > &contacts) const
	find the intersection of 2 objects More...
bool	broad_phase_intersection (const Physics_object &a, const Physics_object &b) const
	cheap and cheerful intersection test More...

Detailed Description

Collision solver that implements GJK.

Given two PhysicsObjects, figure out if they intersect. Uses the GJK algorithm to find object intersection: http://mollyrocket.com/849 http://hacktank.net/blog/?p=93 As well as the EPA algorithm to find the contact point and normal: http://hacktank.net/blog/?p=119 http://allenchou.net/2013/12/game-physics-contact-generation-epa/ http://stackoverflow.com/questions/31764305/im-implementing-the-expanding-polytope-algorithm-and-i-am-unsure-how-to-deduce

Constructor & Destructor Documentation

Dubious::Physics::Collision_solver::Collision_solver ( )

default

Default constructor.

Dubious::Physics::Collision_solver::Collision_solver ( const Collision_solver &  )

delete

Member Function Documentation

bool Dubious::Physics::Collision_solver::broad_phase_intersection	(	const Physics_object &	a,
		const Physics_object &	b
	)		const

cheap and cheerful intersection test

This is a cheap and very rough intersection test. It only looks to see if the radius of the 2 objects added is more than the distance between them. If it is then the objects might be touching

Parameters

a	- [in] the first object
b	- [in] the second object

Returns

true if they might collide

bool Dubious::Physics::Collision_solver::intersection	(	const Physics_object &	a,
		const Physics_object &	b,
		std::vector< Contact_manifold::Contact > &	contacts
	)		const

find the intersection of 2 objects

This is the main entry point to the collision solver. Given two objects, find out if they collide, and if so, where. This is a work in progress.

Parameters

a	- [in] the first object
b	- [in] the second object
contacts	- [out] contact information

Returns

true if they collide

Collision_solver& Dubious::Physics::Collision_solver::operator= ( const Collision_solver &  )

delete

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

• Physics/src/Collision_solver.h
• Physics/src/Collision_solver.cpp