Factor out some common definitions from the XML schemas

rsrc/schemas/scenario.xsd

@@ -1,11 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
-	<xs:simpleType name="bool">
-		<xs:restriction base="xs:token">
-			<xs:enumeration value="true"/>
-			<xs:enumeration value="false"/>
-		</xs:restriction>
-	</xs:simpleType>
+	<xs:include schemaLocation="common.xsd"/>
 	<xs:simpleType name='shop-amount'>
 		<xs:union memberTypes='xs:integer'>
 			<xs:simpleType>
@@ -15,16 +10,6 @@
 			</xs:simpleType>
 		</xs:union>
 	</xs:simpleType>
-	<xs:attributeGroup name="rect">
-		<xs:attribute name="top" use="required" type="xs:integer"/>
-		<xs:attribute name="left" use="required" type="xs:integer"/>
-		<xs:attribute name="bottom" use="required" type="xs:integer"/>
-		<xs:attribute name="right" use="required" type="xs:integer"/>
-	</xs:attributeGroup>
-	<xs:attributeGroup name="point">
-		<xs:attribute name="x" use="required" type="xs:integer"/>
-		<xs:attribute name="y" use="required" type="xs:integer"/>
-	</xs:attributeGroup>
 	<xs:element name="icon">
 		<xs:complexType mixed="true">
 			<xs:attribute name="custom" type="bool" default="false"/>
@@ -279,15 +264,7 @@
 						</xs:sequence>
 					</xs:complexType>
 				</xs:element>
-				<xs:element name="timer" minOccurs="0" maxOccurs="20">
-					<xs:complexType>
-						<xs:simpleContent>
-							<xs:extension base="xs:integer">
-								<xs:attribute name="freq" type="xs:integer" use="required"/>
-							</xs:extension>
-						</xs:simpleContent>
-					</xs:complexType>
-				</xs:element>
+				<xs:element ref="timer" minOccurs="0" maxOccurs="20"/>
 				<xs:element name="string" minOccurs="0" maxOccurs="unbounded">
 					<xs:complexType>
 						<xs:simpleContent>