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<h2 title="Class Contact" class="title">Class Contact
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<ul class="inheritance">
<li>java.lang.Object
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<li>com.badlogic.gdx.physics.box2d.Contact
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<pre>public class
<span class="strong">Contact
</span>
extends java.lang.Object
</pre>
<div class="block">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.
</div>
<dl><dt><span class="strong">Author:
</span></dt>
<dd>mzechner
</dd></dl>
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<td class="colFirst"><code>protected long
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#addr">addr
</a></strong></code>
<div class="block">the address
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected
<a href="../../../../../com/badlogic/gdx/physics/box2d/World.html" title="class in com.badlogic.gdx.physics.box2d">World
</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#world">world
</a></strong></code>
<div class="block">the world
</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected
<a href="../../../../../com/badlogic/gdx/physics/box2d/WorldManifold.html" title="class in com.badlogic.gdx.physics.box2d">WorldManifold
</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#worldManifold">worldManifold
</a></strong></code>
<div class="block">the world manifold
</div>
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<td class="colFirst"><code>protected
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#Contact(com.badlogic.gdx.physics.box2d.World, long)">Contact
</a></strong>(
<a href="../../../../../com/badlogic/gdx/physics/box2d/World.html" title="class in com.badlogic.gdx.physics.box2d">World
</a> world,
long
addr)
</code> </td>
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<td class="colFirst"><code>int
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getChildIndexA()">getChildIndexA
</a></strong>()
</code>
<div class="block">Get the child primitive index for fixture A.
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getChildIndexB()">getChildIndexB
</a></strong>()
</code>
<div class="block">Get the child primitive index for fixture B.
</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../com/badlogic/gdx/physics/box2d/Fixture.html" title="class in com.badlogic.gdx.physics.box2d">Fixture
</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getFixtureA()">getFixtureA
</a></strong>()
</code>
<div class="block">Get the first fixture in this contact.
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../com/badlogic/gdx/physics/box2d/Fixture.html" title="class in com.badlogic.gdx.physics.box2d">Fixture
</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getFixtureB()">getFixtureB
</a></strong>()
</code>
<div class="block">Get the second fixture in this contact.
</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>float
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getFriction()">getFriction
</a></strong>()
</code>
<div class="block">Get the friction.
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>float
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getRestitution()">getRestitution
</a></strong>()
</code>
<div class="block">Get the restitution.
</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>float
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getTangentSpeed()">getTangentSpeed
</a></strong>()
</code>
<div class="block">Get the tangent speed.
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../com/badlogic/gdx/physics/box2d/WorldManifold.html" title="class in com.badlogic.gdx.physics.box2d">WorldManifold
</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getWorldManifold()">getWorldManifold
</a></strong>()
</code> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>boolean
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#isEnabled()">isEnabled
</a></strong>()
</code>
<div class="block">Has this contact been disabled?
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#isTouching()">isTouching
</a></strong>()
</code> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#resetFriction()">resetFriction
</a></strong>()
</code>
<div class="block">Reset the friction mixture to the default value.
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#ResetRestitution()">ResetRestitution
</a></strong>()
</code>
<div class="block">Reset the restitution to the default value.
</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#setEnabled(boolean)">setEnabled
</a></strong>(boolean
flag)
</code>
<div class="block">Enable/disable this contact.
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#setFriction(float)">setFriction
</a></strong>(float
friction)
</code>
<div class="block">Override the default friction mixture.
</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#setRestitution(float)">setRestitution
</a></strong>(float
restitution)
</code>
<div class="block">Override the default restitution mixture.
</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void
</code></td>
<td class="colLast"><code><strong><a href="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#setTangentSpeed(float)">setTangentSpeed
</a></strong>(float
speed)
</code>
<div class="block">Set the tangent speed.
</div>
</td>
</tr>
</table>
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<h3>Methods inherited from class
java.lang.Object
</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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<a name="addr">
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<h4>addr
</h4>
<pre>protected
long addr
</pre>
<div class="block">the address
</div>
</li>
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<h4>world
</h4>
<pre>protected
<a href="../../../../../com/badlogic/gdx/physics/box2d/World.html" title="class in com.badlogic.gdx.physics.box2d">World
</a> world
</pre>
<div class="block">the world
</div>
</li>
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<a name="worldManifold">
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<h4>worldManifold
</h4>
<pre>protected final
<a href="../../../../../com/badlogic/gdx/physics/box2d/WorldManifold.html" title="class in com.badlogic.gdx.physics.box2d">WorldManifold
</a> worldManifold
</pre>
<div class="block">the world manifold
</div>
</li>
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</li>
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<a name="Contact(com.badlogic.gdx.physics.box2d.World, long)">
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<h4>Contact
</h4>
<pre>protected
Contact(
<a href="../../../../../com/badlogic/gdx/physics/box2d/World.html" title="class in com.badlogic.gdx.physics.box2d">World
</a> world,
long
addr)
</pre>
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<h4>getWorldManifold
</h4>
<pre>public
<a href="../../../../../com/badlogic/gdx/physics/box2d/WorldManifold.html" title="class in com.badlogic.gdx.physics.box2d">WorldManifold
</a> getWorldManifold()
</pre>
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<a name="isTouching()">
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<h4>isTouching
</h4>
<pre>public
boolean
isTouching()
</pre>
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<a name="setEnabled(boolean)">
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<h4>setEnabled
</h4>
<pre>public
void
setEnabled(boolean
flag)
</pre>
<div class="block">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).
</div>
</li>
</ul>
<a name="isEnabled()">
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<h4>isEnabled
</h4>
<pre>public
boolean
isEnabled()
</pre>
<div class="block">Has this contact been disabled?
</div>
</li>
</ul>
<a name="getFixtureA()">
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<h4>getFixtureA
</h4>
<pre>public
<a href="../../../../../com/badlogic/gdx/physics/box2d/Fixture.html" title="class in com.badlogic.gdx.physics.box2d">Fixture
</a> getFixtureA()
</pre>
<div class="block">Get the first fixture in this contact.
</div>
</li>
</ul>
<a name="getFixtureB()">
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<h4>getFixtureB
</h4>
<pre>public
<a href="../../../../../com/badlogic/gdx/physics/box2d/Fixture.html" title="class in com.badlogic.gdx.physics.box2d">Fixture
</a> getFixtureB()
</pre>
<div class="block">Get the second fixture in this contact.
</div>
</li>
</ul>
<a name="getChildIndexA()">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getChildIndexA
</h4>
<pre>public
int
getChildIndexA()
</pre>
<div class="block">Get the child primitive index for fixture A.
</div>
</li>
</ul>
<a name="getChildIndexB()">
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<ul class="blockList">
<li class="blockList">
<h4>getChildIndexB
</h4>
<pre>public
int
getChildIndexB()
</pre>
<div class="block">Get the child primitive index for fixture B.
</div>
</li>
</ul>
<a name="setFriction(float)">
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<ul class="blockList">
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<h4>setFriction
</h4>
<pre>public
void
setFriction(float
friction)
</pre>
<div class="block">Override the default friction mixture. You can call this in b2ContactListener::PreSolve. This value persists until set or
reset.
</div>
</li>
</ul>
<a name="getFriction()">
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</a>
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<h4>getFriction
</h4>
<pre>public
float
getFriction()
</pre>
<div class="block">Get the friction.
</div>
</li>
</ul>
<a name="resetFriction()">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>resetFriction
</h4>
<pre>public
void
resetFriction()
</pre>
<div class="block">Reset the friction mixture to the default value.
</div>
</li>
</ul>
<a name="setRestitution(float)">
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</a>
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<h4>setRestitution
</h4>
<pre>public
void
setRestitution(float
restitution)
</pre>
<div class="block">Override the default restitution mixture. You can call this in b2ContactListener::PreSolve. The value persists until you set
or reset.
</div>
</li>
</ul>
<a name="getRestitution()">
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</a>
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<h4>getRestitution
</h4>
<pre>public
float
getRestitution()
</pre>
<div class="block">Get the restitution.
</div>
</li>
</ul>
<a name="ResetRestitution()">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>ResetRestitution
</h4>
<pre>public
void
ResetRestitution()
</pre>
<div class="block">Reset the restitution to the default value.
</div>
</li>
</ul>
<a name="getTangentSpeed()">
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</a>
<ul class="blockList">
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<h4>getTangentSpeed
</h4>
<pre>public
float
getTangentSpeed()
</pre>
<div class="block">Get the tangent speed.
</div>
</li>
</ul>
<a name="setTangentSpeed(float)">
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<h4>setTangentSpeed
</h4>
<pre>public
void
setTangentSpeed(float
speed)
</pre>
<div class="block">Set the tangent speed.
</div>
</li>
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