StairsPath.xml

<sequence values="BDROAGE" origin="True" symmetry="(xy)">
  <all in="D**B" out="***D" symmetry="(xyz)"/>
  <one in="DBBDBBD" out="B**GEBB" steps="1" comment="finish"/>
  <one in="DBBDBBD" out="RO*****" steps="1" comment="start"/>
  <prl in="D" out="B"/>
  <one>
    <rule in="ROBBB" out="DAARO" comment="forward"/>
    <rule in="ROBB/*BBB/***B/***B" out="DAAR/*BBO/****/****" comment="Turn"/>
    <rule in="ROBBB BBBBB BBBBB BBBBB" out="DAADB BBBAB BBBAB DBBRO" comment="stairs down"/>
    <rule in="BBBBB BBBBB BBBBB ROBBB" out="DBBRO BBBAB BBBAB DAADB" comment="stairs up"/>

    <observe value="G" from="B" to="R"/>
    <observe value="E" from="B" to="O"/>
    <observe value="R" to="D"/>
    <observe value="O" to="A"/>
    <observe value="B" to="BDA"/>
  </one>
  <one in="ROBB" out="DAAD"/>
  <map scale="5/3 5/3 5/3" values="BWAR" folder="Stairs">
    <rule in="BBB/BBB/BBB BBB/ADA/BBB BBB/BBB/BBB" fout="Line" legend="BAW"/>
    <rule in="BBB/BBB/BBB BBB/BDA/BAB BBB/BBB/BBB" fout="Turn" legend="BAW"/>
    <rule in="BBB/BBB/BBB BBB/ADB/BBB BBB/BAB/BBB" fout="Down" legend="BAW"/>
    <rule in="BBB/BAB/BBB BBB/BDA/BBB BBB/BBB/BBB" fout="Up" legend="BAW"/>
    <rule in="BBB/BBB/BBB BBB/ADB/BBB BBB/BBB/BBB" fout="End" legend="BAWR"/>
  </map>
</sequence>

<!--
Connects 2 given points with the shortest path with stairs.
-->