dare/Spirits.lua

-- spirits module
spirits = {}

-- finds all spirit healers by given zone
function spirits.find(zone)
   for i, v in pairs(locations) do
      if i % 2 ~= 0 then
	 if v == zone then
	    return locations[i+1]
	 end
      end
   end

   return nil
end

-- determine given player's distance to spirit healers in resolved zone
function spirits.distances(player)

   local zone = player.zone()
   local locs = spirits.find(zone)

   if nil == locs then
      return string.format("No spirits found for zone: %s", zone)
   end

   local msg = ""
   for j, coords in pairs(locs) do
      x, y = unpack(coords)
      dx = math.abs(player.x() - x)
      dy = math.abs(player.y() - y)

      dist = math.max(dx, dy)
      color = "cffFF0000"

      if dist < 3 then
	 color = "cff00FF00"
      elseif dist < 10 then
	 color = "cffFFFF00"
      else
	 color = "cffFF0000"
      end
      
      msg = msg .. string.format("|%s%.2f|r away from %d", color, dist, j) .. ";"
   end

   return msg
end