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Action (libgdx API)
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com.badlogic.gdx.scenes.scene2d</FONT>
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<BR>
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Class Action</H2>
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<PRE>
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java.lang.Object
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  <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>com.badlogic.gdx.scenes.scene2d.Action</B>
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</PRE>
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<DL>
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<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../com/badlogic/gdx/utils/Pool.Poolable.html" title="interface in com.badlogic.gdx.utils">Pool.Poolable</A></DD>
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</DL>
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<DL>
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<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/actions/AddAction.html" title="class in com.badlogic.gdx.scenes.scene2d.actions">AddAction</A>, <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/actions/DelegateAction.html" title="class in com.badlogic.gdx.scenes.scene2d.actions">DelegateAction</A>, <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/actions/LayoutAction.html" title="class in com.badlogic.gdx.scenes.scene2d.actions">LayoutAction</A>, <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/actions/ParallelAction.html" title="class in com.badlogic.gdx.scenes.scene2d.actions">ParallelAction</A>, <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/actions/RemoveActorAction.html" title="class in com.badlogic.gdx.scenes.scene2d.actions">RemoveActorAction</A>, <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/actions/RunnableAction.html" title="class in com.badlogic.gdx.scenes.scene2d.actions">RunnableAction</A>, <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/actions/TemporalAction.html" title="class in com.badlogic.gdx.scenes.scene2d.actions">TemporalAction</A>, <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/actions/TouchableAction.html" title="class in com.badlogic.gdx.scenes.scene2d.actions">TouchableAction</A>, <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/actions/VisibleAction.html" title="class in com.badlogic.gdx.scenes.scene2d.actions">VisibleAction</A></DD>
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</DL>
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<HR>
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<DL>
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<DT><PRE>public abstract class <B>Action</B><DT>extends java.lang.Object<DT>implements <A HREF="../../../../../com/badlogic/gdx/utils/Pool.Poolable.html" title="interface in com.badlogic.gdx.utils">Pool.Poolable</A></DL>
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</PRE>
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<P>
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Actions attach to an <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d"><CODE>Actor</CODE></A> and perform some task, often over time.
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<P>
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<P>
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<DL>
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<DT><B>Author:</B></DT>
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  <DD>Nathan Sweet</DD>
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</DL>
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<HR>
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<P>
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<!-- =========== FIELD SUMMARY =========== -->
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<A NAME="field_summary"><!-- --></A>
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Field Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>protected &nbsp;<A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d">Actor</A></CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#actor">actor</A></B></CODE>
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<BR>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The actor this action is attached to, or null if it is not attached.</TD>
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</TABLE>
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&nbsp;
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<A NAME="constructor_summary"><!-- --></A>
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Constructor Summary</B></FONT></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#Action()">Action</A></B>()</CODE>
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<BR>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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</TR>
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</TABLE>
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&nbsp;
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<!-- ========== METHOD SUMMARY =========== -->
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<A NAME="method_summary"><!-- --></A>
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Method Summary</B></FONT></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>abstract &nbsp;boolean</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#act(float)">act</A></B>(float&nbsp;delta)</CODE>
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<BR>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Updates the action based on time.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>&nbsp;<A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d">Actor</A></CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#getActor()">getActor</A></B>()</CODE>
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<BR>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>&nbsp;<A HREF="../../../../../com/badlogic/gdx/utils/Pool.html" title="class in com.badlogic.gdx.utils">Pool</A></CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#getPool()">getPool</A></B>()</CODE>
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<BR>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>&nbsp;void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#reset()">reset</A></B>()</CODE>
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<BR>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Resets the optional state of this action to as if it were newly created, allowing the action to be pooled and reused.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>&nbsp;void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#restart()">restart</A></B>()</CODE>
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<BR>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the state of the action so it can be run again.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>&nbsp;void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#setActor(com.badlogic.gdx.scenes.scene2d.Actor)">setActor</A></B>(<A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d">Actor</A>&nbsp;actor)</CODE>
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<BR>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the actor this action will be used for.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>&nbsp;void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#setPool(com.badlogic.gdx.utils.Pool)">setPool</A></B>(<A HREF="../../../../../com/badlogic/gdx/utils/Pool.html" title="class in com.badlogic.gdx.utils">Pool</A>&nbsp;pool)</CODE>
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<BR>
232 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sets the pool that the action will be returned to when removed from the actor.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>&nbsp;java.lang.String</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#toString()">toString</A></B>()</CODE>
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<BR>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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</TR>
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</TABLE>
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&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD>
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</TR>
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</TABLE>
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&nbsp;
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<P>
254 
 
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<!-- ============ FIELD DETAIL =========== -->
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<A NAME="field_detail"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
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<B>Field Detail</B></FONT></TH>
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</TR>
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</TABLE>
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<A NAME="actor"><!-- --></A><H3>
266 
actor</H3>
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<PRE>
268 
protected <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d">Actor</A> <B>actor</B></PRE>
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<DL>
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<DD>The actor this action is attached to, or null if it is not attached.
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<P>
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<DL>
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</DL>
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</DL>
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<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<A NAME="constructor_detail"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
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<B>Constructor Detail</B></FONT></TH>
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</TR>
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</TABLE>
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<A NAME="Action()"><!-- --></A><H3>
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Action</H3>
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<PRE>
289 
public <B>Action</B>()</PRE>
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<DL>
291 
</DL>
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<!-- ============ METHOD DETAIL ========== -->
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<A NAME="method_detail"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
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<B>Method Detail</B></FONT></TH>
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</TR>
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</TABLE>
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<A NAME="act(float)"><!-- --></A><H3>
304 
act</H3>
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<PRE>
306 
public abstract boolean <B>act</B>(float&nbsp;delta)</PRE>
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<DL>
308 
<DD>Updates the action based on time. Typically this is called each frame by <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html#act(float)"><CODE>Actor.act(float)</CODE></A>.
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<P>
310 
<DD><DL>
311 
</DL>
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</DD>
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<DD><DL>
314 
<DT><B>Parameters:</B><DD><CODE>delta</CODE> - Time in seconds since the last frame.
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<DT><B>Returns:</B><DD>true if the action is done. This method may continue to be called after the action is done.</DL>
316 
</DD>
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</DL>
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<HR>
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320 
<A NAME="restart()"><!-- --></A><H3>
321 
restart</H3>
322 
<PRE>
323 
public void <B>restart</B>()</PRE>
324 
<DL>
325 
<DD>Sets the state of the action so it can be run again.
326 
<P>
327 
<DD><DL>
328 
</DL>
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</DD>
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<DD><DL>
331 
</DL>
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</DD>
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</DL>
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<HR>
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336 
<A NAME="getActor()"><!-- --></A><H3>
337 
getActor</H3>
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<PRE>
339 
public <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d">Actor</A> <B>getActor</B>()</PRE>
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<DL>
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<DD><DL>
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</DL>
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</DD>
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<DD><DL>
345 
 
346 
<DT><B>Returns:</B><DD>null if the action is not attached to an actor.</DL>
347 
</DD>
348 
</DL>
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<HR>
350 
 
351 
<A NAME="setActor(com.badlogic.gdx.scenes.scene2d.Actor)"><!-- --></A><H3>
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setActor</H3>
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<PRE>
354 
public void <B>setActor</B>(<A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Actor.html" title="class in com.badlogic.gdx.scenes.scene2d">Actor</A>&nbsp;actor)</PRE>
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<DL>
356 
<DD>Sets the actor this action will be used for. This is called automatically when an action is added to an actor. This is also
357 
 called with null when an action is removed from an actor. When set to null, if the action has a <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#setPool(com.badlogic.gdx.utils.Pool)"><CODE>pool</CODE></A>
358 
 then the action is <A HREF="../../../../../com/badlogic/gdx/utils/Pool.html#free(T)"><CODE>returned</CODE></A> to the pool (which calls <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#reset()"><CODE>reset()</CODE></A>) and the pool is set to null.
359 
 If the action does not have a pool, <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#reset()"><CODE>reset()</CODE></A> is called.
360 
 <p>
361 
 This method is not typically a good place for a subclass to query the actor's state because the action may not be executed
362 
 for some time, eg it may be <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/actions/DelayAction.html" title="class in com.badlogic.gdx.scenes.scene2d.actions"><CODE>delayed</CODE></A>. The actor's state is best queried in the first call to
363 
 <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#act(float)"><CODE>act(float)</CODE></A>. For a <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/actions/TemporalAction.html" title="class in com.badlogic.gdx.scenes.scene2d.actions"><CODE>TemporalAction</CODE></A>, use TemporalAction#begin().
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<P>
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<DD><DL>
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</DL>
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</DD>
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<DD><DL>
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</DL>
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</DD>
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</DL>
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<HR>
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374 
<A NAME="reset()"><!-- --></A><H3>
375 
reset</H3>
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<PRE>
377 
public void <B>reset</B>()</PRE>
378 
<DL>
379 
<DD>Resets the optional state of this action to as if it were newly created, allowing the action to be pooled and reused. State
380 
 required to be set for every usage of this action or computed during the action does not need to be reset.
381 
 <p>
382 
 The default implementation calls <A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#restart()"><CODE>restart()</CODE></A>.
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 <p>
384 
 If a subclass has optional state, it must override this method, call super, and reset the optional state.
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<P>
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<DD><DL>
387 
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../com/badlogic/gdx/utils/Pool.Poolable.html#reset()">reset</A></CODE> in interface <CODE><A HREF="../../../../../com/badlogic/gdx/utils/Pool.Poolable.html" title="interface in com.badlogic.gdx.utils">Pool.Poolable</A></CODE></DL>
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</DD>
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<A NAME="getPool()"><!-- --></A><H3>
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getPool</H3>
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public <A HREF="../../../../../com/badlogic/gdx/utils/Pool.html" title="class in com.badlogic.gdx.utils">Pool</A> <B>getPool</B>()</PRE>
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setPool</H3>
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public void <B>setPool</B>(<A HREF="../../../../../com/badlogic/gdx/utils/Pool.html" title="class in com.badlogic.gdx.utils">Pool</A>&nbsp;pool)</PRE>
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<DD>Sets the pool that the action will be returned to when removed from the actor.
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<DT><B>See Also:</B><DD><A HREF="../../../../../com/badlogic/gdx/scenes/scene2d/Action.html#setActor(com.badlogic.gdx.scenes.scene2d.Actor)"><CODE>setActor(Actor)</CODE></A></DL>
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toString</H3>
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public java.lang.String <B>toString</B>()</PRE>
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