<?xml version="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
  <xs:annotation>
    <xs:documentation>

      Copyright (C) 2002-2021  The FreeCol Team

      This file is part of FreeCol.

      FreeCol is free software: you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published by
      the Free Software Foundation, either version 2 of the License, or
      (at your option) any later version.

      FreeCol is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
      GNU General Public License for more details.

      You should have received a copy of the GNU General Public License
      along with FreeCol. If not, see http://www.gnu.org/licenses
    </xs:documentation>
  </xs:annotation>

  <xs:include schemaLocation="../spec/spec-model.xsd"/>
  <xs:include schemaLocation="data-common.xsd" />
  <xs:include schemaLocation="data-region.xsd" />
  <xs:include schemaLocation="data-tile.xsd"/>

  <xs:element name="map">
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element ref="region"/>
        <xs:element ref="tile"/>
      </xs:choice>
      <xs:attribute name="id" type="MapId" use="required" />
      <xs:attribute name="width" type="xs:int" use="required" />
      <xs:attribute name="height" type="xs:int" use="required" />
      <xs:attribute name="layer" type="MapLayerType" use="required"/>
      <xs:attribute name="minimumLatitude" type="xs:int" use="optional" />
      <xs:attribute name="maximumLatitude" type="xs:int" use="optional" />
     </xs:complexType>
  </xs:element>

  <xs:simpleType name="MapLayerType">
    <xs:restriction base="xs:token">
      <xs:enumeration value="none"/>
      <xs:enumeration value="land"/>
      <xs:enumeration value="terrain"/>
      <xs:enumeration value="rivers"/>
      <xs:enumeration value="resources"/>
      <xs:enumeration value="rumours"/>
      <xs:enumeration value="natives"/>
      <xs:enumeration value="all"/>
    </xs:restriction>
  </xs:simpleType>

</xs:schema>
