Contact (libGDX Box2D 1.9.2 API)

java.lang.Object
- com.badlogic.gdx.physics.box2d.Contact

```
public class Contact
extends Object
```
The class manages contact between two shapes. A contact exists for each overlapping AABB in the broad-phase (except if filtered). Therefore a contact object may exist that has no contact points.

Author:

mzechner

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`int`	`getChildIndexA()` Get the child primitive index for fixture A.
`int`	`getChildIndexB()` Get the child primitive index for fixture B.
`Fixture`	`getFixtureA()` Get the first fixture in this contact.
`Fixture`	`getFixtureB()` Get the second fixture in this contact.
`float`	`getFriction()` Get the friction.
`float`	`getRestitution()` Get the restitution.
`float`	`getTangentSpeed()` Get the tangent speed.
`WorldManifold`	`getWorldManifold()` Get the world manifold.
`boolean`	`isEnabled()` Has this contact been disabled?
`boolean`	`isTouching()`
`void`	`resetFriction()` Reset the friction mixture to the default value.
`void`	`ResetRestitution()` Reset the restitution to the default value.
`void`	`setEnabled(boolean flag)` Enable/disable this contact.
`void`	`setFriction(float friction)` Override the default friction mixture.
`void`	`setRestitution(float restitution)` Override the default restitution mixture.
`void`	`setTangentSpeed(float speed)` Set the tangent speed.

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getWorldManifold
```
public WorldManifold getWorldManifold()
```
    Get the world manifold.
  - isTouching
```
public boolean isTouching()
```
  - setEnabled
```
public void setEnabled(boolean flag)
```
    Enable/disable this contact. This can be used inside the pre-solve contact listener. The contact is only disabled for the current time step (or sub-step in continuous collisions).
  - isEnabled
```
public boolean isEnabled()
```
    Has this contact been disabled?
  - getFixtureA
```
public Fixture getFixtureA()
```
    Get the first fixture in this contact.
  - getFixtureB
```
public Fixture getFixtureB()
```
    Get the second fixture in this contact.
  - getChildIndexA
```
public int getChildIndexA()
```
    Get the child primitive index for fixture A.
  - getChildIndexB
```
public int getChildIndexB()
```
    Get the child primitive index for fixture B.
  - setFriction
```
public void setFriction(float friction)
```
    Override the default friction mixture. You can call this in b2ContactListener::PreSolve. This value persists until set or reset.
  - getFriction
```
public float getFriction()
```
    Get the friction.
  - resetFriction
```
public void resetFriction()
```
    Reset the friction mixture to the default value.
  - setRestitution
```
public void setRestitution(float restitution)
```
    Override the default restitution mixture. You can call this in b2ContactListener::PreSolve. The value persists until you set or reset.
  - getRestitution
```
public float getRestitution()
```
    Get the restitution.
  - ResetRestitution
```
public void ResetRestitution()
```
    Reset the restitution to the default value.
  - getTangentSpeed
```
public float getTangentSpeed()
```
    Get the tangent speed.
  - setTangentSpeed
```
public void setTangentSpeed(float speed)
```
    Set the tangent speed.

Class Contact

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getWorldManifold

isTouching

setEnabled

isEnabled

getFixtureA

getFixtureB

getChildIndexA

getChildIndexB

setFriction

getFriction

resetFriction

setRestitution

getRestitution

ResetRestitution

getTangentSpeed

setTangentSpeed