<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<el:level xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://enigma-game.org/schema/level/1 level.xsd" xmlns:el="http://enigma-game.org/schema/level/1">
  <el:protected>
    <el:info el:type="level">
      <el:identity el:title="Squaring the Circle" el:subtitle="" el:id="nat16"/>
      <el:version el:score="1" el:release="2" el:revision="3" el:status="released"/>
      <el:author  el:name="Nat Pryce" el:email="" el:homepage=""/>
      <el:copyright>Copyright © 2003 Nat Pryce</el:copyright>
      <el:license el:type="GPL version 2" el:open="true"/>
      <el:compatibility el:enigma="1.10"/>
      <el:modes el:easy="true" el:single="true" el:network="false"/>
      <el:comments><el:code>New API converted by R. Bourquin</el:code></el:comments>
      <el:score el:easy="-" el:difficult="-"/>
    </el:info>
    <el:luamain><![CDATA[
wo["ConserveLevel"] = false
wo["SurviveFinish"] = true

ti[" "] = ti({"fl_blueslab", checkerboard=0}) .. {"fl_redslab", checkerboard=1}
ti["#"] = {"st_panel"}
ti["O"] = {"st_oxyd", name="oxyds#", flavor="a"}
ti["@"] = {"ac_marble_black", 0.0, 0.5, name="blackball"}

wo(ti, " ", {
    "###O###O####O###O###",
    "#                  #",
    "#                  #",
    "#                  #",
    "#                  #",
    "#                  #",
    "O         @        O",
    "#                  #",
    "#                  #",
    "#                  #",
    "#                  #",
    "#                  #",
    "###O###O####O###O###"})

local number = 20
local radius = cond(wo["IsDifficult"], 1.5, 2.5)
local theta = 2.0*math.pi/number
local segment = 2.0*radius*math.sin(theta/2.0)
for i=0, number-1 do
    wo[no["blackball"] + po(0.0, 0.5) + po(radius*math.cos(i*theta), radius*math.sin(i*theta))] = {"ac_killer", name="killer#", adhesion=1.0}
end
local killers = no["killer#*"]:sort("circular")
for i=0, #killers-1 do
    wo:add({"ot_rubberband", anchor1=killers[i+1], anchor2=killers[(i+1)%number+1], length=segment})
end

wo:shuffleOxyd({no["oxyds#*"]:sort("circular"), circular=true})
 ]]></el:luamain>
    <el:i18n>
      <el:string el:key="title">
        <el:english el:translate="false"/>
      </el:string>
    </el:i18n>
  </el:protected>
</el:level>
