Colliding Shapes
Ian Parberry's "Introduction to Game Physics"
Public Member Functions | Private Attributes | List of all members
CKinematicLineSeg Class Reference

Kinematic line segment shape. More...

#include <LineSeg.h>

Inheritance diagram for CKinematicLineSeg:
CLineSeg CLine CShape CShapeCommon

Public Member Functions

 CKinematicLineSeg (CLineSegDesc &)
 Constructor. More...
 
void Rotate (const Vector2 &, float)
 Rotate. More...
 
void Reset ()
 Reset orientation. More...
 
- Public Member Functions inherited from CLineSeg
 CLineSeg (CLineSegDesc &)
 Constructor. More...
 
bool PreCollide (CContactDesc &)
 Collision detection. More...
 
void GetEndPts (Vector2 &, Vector2 &)
 Get end points. More...
 
void GetTangents (Vector2 &, Vector2 &)
 Get tangents. More...
 
const Vector2 & GetNormal ()
 Get normal. More...
 
- Public Member Functions inherited from CLine
 CLine (const Vector2 &, float)
 Constructor. More...
 
- Public Member Functions inherited from CShape
 CShape (const CShapeDesc &)
 Constructor. More...
 
virtual ~CShape ()
 Destructor. More...
 
const eShape GetShapeType () const
 Get shape type. More...
 
const eMotion GetMotionType () const
 Get motion type. More...
 
const CAabb2DGetAABB () const
 Get AABB. More...
 
const bool GetSensor () const
 Is this shape a sensor? More...
 
const Vector2 & GetPos () const
 Get position. More...
 
void SetPos (const Vector2 &)
 Set position. More...
 
void SetAABBPoint (const Vector2 &)
 Set AABB point. More...
 
void AddAABBPoint (const Vector2 &)
 Add AABB point. More...
 
void SetCanCollide (bool=true)
 Turn collisions on or off. More...
 
const bool GetCanCollide () const
 Get whether shape can collide. More...
 
virtual void move ()
 Translate. More...
 
const bool GetRotating () const
 Get whether rotating. More...
 
void SetRotating (bool)
 Start or stop rotating. More...
 
const float GetOrientation () const
 Get orientation. More...
 
const float GetRotSpeed () const
 Get rotation speed. More...
 
const Vector2 & GetRotCenter () const
 Get rotation speed. More...
 
const float GetElasticity () const
 Get elasticity. More...
 
void SetOrientation (float)
 Set orientation. More...
 
void SetRotSpeed (float)
 Set rotation speed. More...
 
void SetRotCenter (const Vector2 &)
 Set center of rotation. More...
 
void * GetUserPtr () const
 Get user pointer. More...
 
void SetUserPtr (void *)
 Set user pointer. More...
 

Private Attributes

Vector2 m_vOldPt0
 Old point 0.
 
Vector2 m_vOldPt1
 Old point 1.
 

Additional Inherited Members

- Protected Member Functions inherited from CLineSeg
void Update ()
 Update other properties from the end points. More...
 
- Protected Member Functions inherited from CLine
Vector2 Intersect (const CLine &)
 Get intersection point with line. More...
 
Vector2 ClosestPt (const Vector2 &)
 Get closest point on line. More...
 
- Protected Attributes inherited from CLineSeg
Vector2 m_vPt0
 Point at end of line segment.
 
Vector2 m_vPt1
 Point at other end of line segment.
 
Vector2 m_vTangent0
 Tangent at point 0.
 
Vector2 m_vTangent1
 Tangent at point 1.
 
Vector2 m_vNormal
 Normal to line segment.
 
- Protected Attributes inherited from CLine
float m_fGradient = 0.0f
 Gradient.
 
float m_fInverseGradient = 0.0f
 Inverse gradient.
 
float m_fYIntercept = 0.0f
 Intercept with Y axis.
 
float m_fXIntercept = 0.0f
 Intercept with X axis.
 
- Protected Attributes inherited from CShape
eShape m_eShapeType = eShape::Unknown
 Type of shape.
 
eMotion m_eMotionType = eMotion::Static
 How shape moves.
 
float m_fElasticity = 1.0f
 Elasticity, aka restitution, bounciness.
 
bool m_bIsSensor = false
 Sensor only, no rebound on collision.
 
CAabb2D m_cAABB
 Axially aligned bounding box in World Space.
 
bool m_bCanCollide = true
 Can collide with other shapes.
 
float m_fOrientation = 0.0f
 Orientation angle.
 
void * m_pUser
 Spare pointer for user in case they might need one.
 
Vector2 m_vRotCenter
 Center of rotation.
 
float m_fRotSpeed = 0.0f
 Rotation speed.
 
bool m_bRotating = false
 Whether rotating.
 
- Static Protected Attributes inherited from CShapeCommon
static float m_fGravity = 0.0f
 Gravitational constant.
 
static float m_fTimeStep = 0.0f
 Time step per animation frame (fictional).
 

Detailed Description

A line segment whose motion type is KINEMATIC.

Constructor & Destructor Documentation

◆ CKinematicLineSeg()

CKinematicLineSeg::CKinematicLineSeg ( CLineSegDesc r)

Constructs a kinematic line segment described by an line segment descriptor.

Parameters
rLine segment descriptor.

Member Function Documentation

◆ Reset()

void CKinematicLineSeg::Reset ( )
virtual

Reset to original orientation.

Reimplemented from CShape.

◆ Rotate()

void CKinematicLineSeg::Rotate ( const Vector2 &  v,
float  a 
)
virtual

Rotate to a given orientation from original orientation.

Parameters
vCenter of rotation.
aAngle increment from original orientation.

Reimplemented from CShape.