added ag.fillArc() and ag.fillCircle() and associated documentation

git-svn-id: svn://anubis/anaglym/trunk@275 99a6e188-d820-4881-8870-2d33a10e2619

doc/index.html

@@ -344,6 +344,32 @@ will be executed and callbacks to other events may still be called.
 The engine should exit within one update step.
 </p>
 
+<a name="ag_fillArc" />
+<h3>fillArc</h3>
+<p><tt>ag.fillArc(r, g, b, x, y, radius, a1, a2)</tt></p>
+<p>
+This function tells the engine to draw a filled-in arc to the screen.
+The color of the arc is specified by (r, g, b).
+<tt>x</tt> and <tt>y</tt> specify the coordinates of the center
+of the arc.
+The arc ranges from angle <tt>a1</tt> to <tt>a2</tt>, which are
+specified in degrees, going counter-clockwise from the East.
+<tt>fillArc()</tt> should normally be called from the
+<tt>update_overlay</tt> event handler.
+</p>
+
+<a name="ag_fillCircle" />
+<h3>fillCircle</h3>
+<p><tt>ag.fillCircle(r, g, b, x, y, radius)</tt></p>
+<p>
+This function tells the engine to draw a solid circle to the screen.
+The color of the circle is specified by (r, g, b).
+<tt>x</tt> and <tt>y</tt> specify the coordinates of the center
+of the circle.
+<tt>fillCircle()</tt> should normally be called from the
+<tt>update_overlay</tt> event handler.
+</p>
+
 <a name="ag_fillRect" />
 <h3>fillRect</h3>
 <p><tt>ag.fillRect(r, g, b, width, height, x, y [, rot])</tt></p>