% -*- TeX-master: "finaler.tex" -*-

\label{sec:formats}

Our XML format is a simple extension of the staff-specified XML
format.  All of the position-related properties that were specified as
integers (including orientation) are stored as floats in our format
because our game system is capable of handling arbitrary location and
orientation.  This still loads the standard format, therefore it is
entirely backwards compatible.

{\tiny
\begin{lstlisting}
<?xml version="1.0" encoding="ISO-8859-1"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

<xs:complexType name="ball">
 <xs:attribute name="name" type="xs:string" use="required" />
 <xs:attribute name="x" type="xs:float" use="required" />
 <xs:attribute name="y" type="xs:float" use="required" />
 <xs:attribute name="xVelocity" type="xs:float" use="required" />
 <xs:attribute name="yVelocity" type="xs:float" use="required" />
 <xs:anyAttribute />
</xs:complexType>

<xs:complexType name="squareBumper"> 
 <xs:attribute name="name" type="xs:string" use="required" />
 <xs:attribute name="x" type="xs:float" use="required" />
 <xs:attribute name="y" type="xs:float" use="required" />
 <xs:attribute name="orientation" type="xs:float" use="optional" />
 <xs:anyAttribute />
</xs:complexType>

<xs:complexType name="circleBumper"> 
 <xs:attribute name="name" type="xs:string" use="required" />
 <xs:attribute name="x" type="xs:float" use="required" />
 <xs:attribute name="y" type="xs:float" use="required" />
 <xs:anyAttribute />
</xs:complexType>

<xs:complexType name="triangleBumper"> 
 <xs:attribute name="name" type="xs:string" use="required" />
 <xs:attribute name="x" type="xs:float" use="required" />
 <xs:attribute name="y" type="xs:float" use="required" />
 <xs:attribute name="orientation" type="xs:float" use="optional" />
 <xs:anyAttribute />
</xs:complexType>

<xs:complexType name="leftFlipper"> 
 <xs:attribute name="name" type="xs:string" use="required" />
 <xs:attribute name="x" type="xs:float" use="required" />
 <xs:attribute name="y" type="xs:float" use="required" />
 <xs:attribute name="orientation" type="xs:float" use="optional" />
 <xs:anyAttribute />
</xs:complexType>

<xs:complexType name="rightFlipper"> 
 <xs:attribute name="name" type="xs:string" use="required" />
 <xs:attribute name="x" type="xs:float" use="required" />
 <xs:attribute name="y" type="xs:float" use="required" />
 <xs:attribute name="orientation" type="xs:float" use="optional" />
 <xs:anyAttribute />
</xs:complexType>

<xs:complexType name="absorber"> 
 <xs:attribute name="name" type="xs:string" use="required" />
 <xs:attribute name="x" type="xs:float" use="required" />
 <xs:attribute name="y" type="xs:float" use="required" />
 <xs:attribute name="width" type="xs:float" use="required" />
 <xs:attribute name="height" type="xs:float" use="required" />
 <xs:anyAttribute />
</xs:complexType>


<xs:complexType name="gizmoVertex">
 <xs:attribute name="x" type="xs:float" use="required" />
 <xs:attribute name="y" type="xs:float" use="required" />
 <xs:anyAttribute />
</xs:complexType>


<xs:complexType name="polyGizmo">
 <xs:sequence>
  <xs:element name="gizmoVertex" type="gizmoVertex" minOccurs="0" maxOccurs="unbounded" />
 </xs:sequence>
 <xs:attribute name="name" type="xs:string" use="required" />
 <xs:attribute name="x" type="xs:float" use="required" />
 <xs:attribute name="y" type="xs:float" use="required" />
 <xs:attribute name="width" type="xs:float" use="optional" />
 <xs:attribute name="height" type="xs:float" use="optional" />
 <xs:attribute name="orientation" type="xs:float" use="optional" />
 <xs:anyAttribute />
</xs:complexType>



<xs:simpleType name="keyDirection">
 <xs:restriction base="xs:string">
  <xs:enumeration value="down" />
  <xs:enumeration value="up" />
 </xs:restriction>
</xs:simpleType>


<xs:complexType name="connect"> 
 <xs:attribute name="sourceGizmo" type="xs:string" use="required" />
 <xs:attribute name="targetGizmo" type="xs:string" use="required" />
 <xs:anyAttribute />
</xs:complexType>

<xs:complexType name="keyConnect"> 
 <xs:attribute name="key" type="xs:integer" use="required" />
 <xs:attribute name="keyDirection" type="keyDirection" use="required" />
 <xs:attribute name="targetGizmo" type="xs:string" use="required" />
 <xs:anyAttribute />
</xs:complexType>



<xs:group name="allGizmos">
  <xs:choice>
   <xs:element name="squareBumper" type="squareBumper" />
   <xs:element name="circleBumper" type="circleBumper" />
   <xs:element name="triangleBumper" type="triangleBumper" />
   <xs:element name="leftFlipper" type="leftFlipper" />
   <xs:element name="rightFlipper" type="rightFlipper" />
   <xs:element name="absorber" type="absorber" />
   <xs:element name="polyGizmo" type="polyGizmo" />
  </xs:choice>
</xs:group>

<xs:group name="allConnections">
 <xs:choice>
  <xs:element name="connect" type="connect" minOccurs="0" maxOccurs="unbounded" />
  <xs:element name="keyConnect" type="keyConnect" minOccurs="0" maxOccurs="unbounded" />
 </xs:choice>
</xs:group>

<xs:element name="board">
 <xs:complexType>
  <xs:sequence>
   <xs:element name="ball" type="ball" minOccurs="0" maxOccurs="unbounded" />

   <xs:element name="gizmos">
    <xs:complexType>
     <xs:sequence>
      <xs:group ref="allGizmos" minOccurs="0" maxOccurs="unbounded" />
     </xs:sequence>
     <xs:anyAttribute />
    </xs:complexType>
   </xs:element>

   <xs:element name="connections">
    <xs:complexType>
     <xs:sequence>
      <xs:group ref="allConnections" minOccurs="0" maxOccurs="unbounded" />
     </xs:sequence>
     <xs:anyAttribute />
    </xs:complexType>
   </xs:element>

   <xs:any minOccurs="0" maxOccurs="unbounded" />
  </xs:sequence>
  <xs:attribute name="friction1" type="xs:float" default=".025"/>
  <xs:attribute name="friction2" type="xs:float" default=".025"/>
  <xs:attribute name="gravity"   type="xs:float" default="25.0"/>
 </xs:complexType>
</xs:element>

</xs:schema>
\end{lstlisting}}