C# Class hyades.physics.VectorHelper

Public Methods

Method	Description
IsCCW ( Vector2 a, Vector2 b ) : bool	is rotating from A to B Counter-clockwise?
LineIntersect ( Vector2 ptA, Vector2 ptB, Vector2 ptC, Vector2 ptD, Vector2 &hitPt ) : bool	see if 2 line segments intersect. (line AB collides with line CD) - simplified version
LineIntersect ( Vector2 ptA, Vector2 ptB, Vector2 ptC, Vector2 ptD, Vector2 &hitPt, float &Ua, float &Ub ) : bool	see if 2 line segments intersect. (line AB collides with line CD)
Perpendicular ( Vector2 vector ) : Vector2	get a vector perpendicular to this vector.
Perpendicular ( Vector2 &vector ) : void	make this vector perpendicular to itself
Perpendicular ( Vector2 &vectorIn, Vector2 &vectorOut ) : void	get a vector perpendicular to this vector (reference type version)
Rotate ( Vector2 vector, float radians ) : Vector2	rotate a vector by a given angle (in radians).
Rotate ( Vector2 &vector, float radians ) : void	rotate a given vector by a given angle (reference type version)
Rotate ( Vector2 &vectorIn, float radians, Vector2 &vectorOut ) : void	rotate a vector by a given angle (reference type version)
Vector3FromVector2 ( Vector2 vector ) : Vector3	turn a Vector2 into a Vector3 (sets Z component to zero)
Vector3FromVector2 ( Vector2 vector, float z ) : Vector3	turn a Vector2 into a Vector3, specifying the Z component to use.

is rotating from A to B Counter-clockwise?

public static IsCCW ( Vector2 a, Vector2 b ) : bool
a	Vector2
b	Vector2
return	bool

see if 2 line segments intersect. (line AB collides with line CD) - simplified version

public static LineIntersect ( Vector2 ptA, Vector2 ptB, Vector2 ptC, Vector2 ptD, Vector2 &hitPt ) : bool
ptA	Vector2	first point on line AB
ptB	Vector2	second point on line AB
ptC	Vector2	first point on line CD
ptD	Vector2	second point on line CD
hitPt	Vector2	resulting point of intersection
return	bool

see if 2 line segments intersect. (line AB collides with line CD)

public static LineIntersect ( Vector2 ptA, Vector2 ptB, Vector2 ptC, Vector2 ptD, Vector2 &hitPt, float &Ua, float &Ub ) : bool
ptA	Vector2	first point on line AB
ptB	Vector2	second point on line AB
ptC	Vector2	first point on line CD
ptD	Vector2	second point on line CD
hitPt	Vector2	resulting point of intersection
Ua	float	distance along AB to intersection [0,1]
Ub	float	distance long CD to intersection [0,1]
return	bool

get a vector perpendicular to this vector.

public static Perpendicular ( Vector2 vector ) : Vector2
vector	Vector2
return	Vector2

make this vector perpendicular to itself

public static Perpendicular ( Vector2 &vector ) : void
vector	Vector2
return	void

get a vector perpendicular to this vector (reference type version)

public static Perpendicular ( Vector2 &vectorIn, Vector2 &vectorOut ) : void
vectorIn	Vector2
vectorOut	Vector2
return	void

rotate a vector by a given angle (in radians).

public static Rotate ( Vector2 vector, float radians ) : Vector2
vector	Vector2
radians	float
return	Vector2

rotate a given vector by a given angle (reference type version)

public static Rotate ( Vector2 &vector, float radians ) : void
vector	Vector2
radians	float
return	void

rotate a vector by a given angle (reference type version)

public static Rotate ( Vector2 &vectorIn, float radians, Vector2 &vectorOut ) : void
vectorIn	Vector2
radians	float
vectorOut	Vector2
return	void

turn a Vector2 into a Vector3 (sets Z component to zero)

public static Vector3FromVector2 ( Vector2 vector ) : Vector3
vector	Vector2
return	Vector3

turn a Vector2 into a Vector3, specifying the Z component to use.

public static Vector3FromVector2 ( Vector2 vector, float z ) : Vector3
vector	Vector2
z	float
return	Vector3