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Contact (libgdx API)
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com.badlogic.gdx.physics.box2d
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<BR>
Class Contact
</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>com.badlogic.gdx.physics.box2d.Contact
</B>
</PRE>
<HR>
<DL>
<DT><PRE>public class
<B>Contact
</B><DT>extends java.lang.Object
</DL>
</PRE>
<P>
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.
<P>
<P>
<DL>
<DT><B>Author:
</B></DT>
<DD>mzechner
</DD>
</DL>
<HR>
<P>
<!-- =========== FIELD SUMMARY =========== -->
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected
long
</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#addr">addr
</A></B></CODE>
<BR>
the address
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected
<A HREF="../../../../../com/badlogic/gdx/physics/box2d/World.html" title="class in com.badlogic.gdx.physics.box2d">World
</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#world">world
</A></B></CODE>
<BR>
the world
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected
<A HREF="../../../../../com/badlogic/gdx/physics/box2d/WorldManifold.html" title="class in com.badlogic.gdx.physics.box2d">WorldManifold
</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#worldManifold">worldManifold
</A></B></CODE>
<BR>
the world manifold
</TD>
</TR>
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<CODE>protected
</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#Contact(com.badlogic.gdx.physics.box2d.World, long)">Contact
</A></B>(
<A HREF="../../../../../com/badlogic/gdx/physics/box2d/World.html" title="class in com.badlogic.gdx.physics.box2d">World
</A> world,
long
addr)
</CODE>
<BR>
</TD>
</TR>
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<CODE> int
</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getChildIndexA()">getChildIndexA
</A></B>()
</CODE>
<BR>
Get the child primitive index for fixture A.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> int
</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getChildIndexB()">getChildIndexB
</A></B>()
</CODE>
<BR>
Get the child primitive index for fixture B.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../com/badlogic/gdx/physics/box2d/Fixture.html" title="class in com.badlogic.gdx.physics.box2d">Fixture
</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getFixtureA()">getFixtureA
</A></B>()
</CODE>
<BR>
Get the first fixture in this contact.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../com/badlogic/gdx/physics/box2d/Fixture.html" title="class in com.badlogic.gdx.physics.box2d">Fixture
</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getFixtureB()">getFixtureB
</A></B>()
</CODE>
<BR>
Get the second fixture in this contact.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> float
</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getFriction()">getFriction
</A></B>()
</CODE>
<BR>
Get the friction.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> float
</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getRestitution()">getRestitution
</A></B>()
</CODE>
<BR>
Get the restitution.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="../../../../../com/badlogic/gdx/physics/box2d/WorldManifold.html" title="class in com.badlogic.gdx.physics.box2d">WorldManifold
</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#getWorldManifold()">getWorldManifold
</A></B>()
</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> boolean
</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#isEnabled()">isEnabled
</A></B>()
</CODE>
<BR>
Has this contact been disabled?
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> boolean
</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#isTouching()">isTouching
</A></B>()
</CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void
</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#resetFriction()">resetFriction
</A></B>()
</CODE>
<BR>
Reset the friction mixture to the default value.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void
</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#ResetRestitution()">ResetRestitution
</A></B>()
</CODE>
<BR>
Reset the restitution to the default value.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void
</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#setEnabled(boolean)">setEnabled
</A></B>(boolean
flag)
</CODE>
<BR>
Enable/disable this contact.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void
</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#setFriction(float)">setFriction
</A></B>(float
friction)
</CODE>
<BR>
Override the default friction mixture.
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void
</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/physics/box2d/Contact.html#setRestitution(float)">setRestitution
</A></B>(float
restitution)
</CODE>
<BR>
Override the default restitution mixture.
</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object
</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
</CODE></TD>
</TR>
</TABLE>
<P>
<!-- ============ FIELD DETAIL =========== -->
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<A NAME="addr"><!-- --></A><H3>
addr
</H3>
<PRE>
protected long
<B>addr
</B></PRE>
<DL>
<DD>the address
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="world"><!-- --></A><H3>
world
</H3>
<PRE>
protected
<A HREF="../../../../../com/badlogic/gdx/physics/box2d/World.html" title="class in com.badlogic.gdx.physics.box2d">World
</A> <B>world
</B></PRE>
<DL>
<DD>the world
<P>
<DL>
</DL>
</DL>
<HR>
<A NAME="worldManifold"><!-- --></A><H3>
worldManifold
</H3>
<PRE>
protected final
<A HREF="../../../../../com/badlogic/gdx/physics/box2d/WorldManifold.html" title="class in com.badlogic.gdx.physics.box2d">WorldManifold
</A> <B>worldManifold
</B></PRE>
<DL>
<DD>the world manifold
<P>
<DL>
</DL>
</DL>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<A NAME="Contact(com.badlogic.gdx.physics.box2d.World, long)"><!-- --></A><H3>
Contact
</H3>
<PRE>
protected
<B>Contact
</B>(
<A HREF="../../../../../com/badlogic/gdx/physics/box2d/World.html" title="class in com.badlogic.gdx.physics.box2d">World
</A> world,
long
addr)
</PRE>
<DL>
</DL>
<!-- ============ METHOD DETAIL ========== -->
<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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</B></FONT></TH>
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</TABLE>
<A NAME="getWorldManifold()"><!-- --></A><H3>
getWorldManifold
</H3>
<PRE>
public
<A HREF="../../../../../com/badlogic/gdx/physics/box2d/WorldManifold.html" title="class in com.badlogic.gdx.physics.box2d">WorldManifold
</A> <B>getWorldManifold
</B>()
</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="isTouching()"><!-- --></A><H3>
isTouching
</H3>
<PRE>
public boolean
<B>isTouching
</B>()
</PRE>
<DL>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="setEnabled(boolean)"><!-- --></A><H3>
setEnabled
</H3>
<PRE>
public void
<B>setEnabled
</B>(boolean
flag)
</PRE>
<DL>
<DD>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).
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="isEnabled()"><!-- --></A><H3>
isEnabled
</H3>
<PRE>
public boolean
<B>isEnabled
</B>()
</PRE>
<DL>
<DD>Has this contact been disabled?
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getFixtureA()"><!-- --></A><H3>
getFixtureA
</H3>
<PRE>
public
<A HREF="../../../../../com/badlogic/gdx/physics/box2d/Fixture.html" title="class in com.badlogic.gdx.physics.box2d">Fixture
</A> <B>getFixtureA
</B>()
</PRE>
<DL>
<DD>Get the first fixture in this contact.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getFixtureB()"><!-- --></A><H3>
getFixtureB
</H3>
<PRE>
public
<A HREF="../../../../../com/badlogic/gdx/physics/box2d/Fixture.html" title="class in com.badlogic.gdx.physics.box2d">Fixture
</A> <B>getFixtureB
</B>()
</PRE>
<DL>
<DD>Get the second fixture in this contact.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getChildIndexA()"><!-- --></A><H3>
getChildIndexA
</H3>
<PRE>
public int
<B>getChildIndexA
</B>()
</PRE>
<DL>
<DD>Get the child primitive index for fixture A.
<P>
<DD><DL>
<DT><B>Returns:
</B><DD></DL>
</DD>
</DL>
<HR>
<A NAME="getChildIndexB()"><!-- --></A><H3>
getChildIndexB
</H3>
<PRE>
public int
<B>getChildIndexB
</B>()
</PRE>
<DL>
<DD>Get the child primitive index for fixture B.
<P>
<DD><DL>
<DT><B>Returns:
</B><DD></DL>
</DD>
</DL>
<HR>
<A NAME="setFriction(float)"><!-- --></A><H3>
setFriction
</H3>
<PRE>
public void
<B>setFriction
</B>(float
friction)
</PRE>
<DL>
<DD>Override the default friction mixture. You can call this in b2ContactListener::PreSolve.
This value persists until set or reset.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getFriction()"><!-- --></A><H3>
getFriction
</H3>
<PRE>
public float
<B>getFriction
</B>()
</PRE>
<DL>
<DD>Get the friction.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="resetFriction()"><!-- --></A><H3>
resetFriction
</H3>
<PRE>
public void
<B>resetFriction
</B>()
</PRE>
<DL>
<DD>Reset the friction mixture to the default value.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="setRestitution(float)"><!-- --></A><H3>
setRestitution
</H3>
<PRE>
public void
<B>setRestitution
</B>(float
restitution)
</PRE>
<DL>
<DD>Override the default restitution mixture. You can call this in b2ContactListener::PreSolve.
The value persists until you set or reset.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getRestitution()"><!-- --></A><H3>
getRestitution
</H3>
<PRE>
public float
<B>getRestitution
</B>()
</PRE>
<DL>
<DD>Get the restitution.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="ResetRestitution()"><!-- --></A><H3>
ResetRestitution
</H3>
<PRE>
public void
<B>ResetRestitution
</B>()
</PRE>
<DL>
<DD>Reset the restitution to the default value.
<P>
<DD><DL>
</DL>
</DD>
</DL>
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