turtle follow

core/etc/scripts/follow

@@ -1,116 +0,0 @@
-local os     = _G.os
-local turtle = _G.turtle
-
-local function follow(id)
-
-  _G.requireInjector(_ENV)
-
-  local Event  = require('event')
-  local Point  = require('point')
-  local Socket = require('socket')
-
-  turtle.setStatus('follow ' .. id)
-
-  if not turtle.enableGPS() then
-    error('turtle: No GPS found')
-  end
-
-  local socket = Socket.connect(id, 161)
-  if not socket then
-    error('turtle: Unable to connect to ' .. id)
-    return
-  end
-
-  local lastPoint
-  local following = false
-
-  Event.on('turtle_follow', function(_, pt)
-
-    local pts = {
-      { x = pt.x + 2, z = pt.z,     y = pt.y },
-      { x = pt.x - 2, z = pt.z,     y = pt.y },
-      { x = pt.x,     z = pt.z + 2, y = pt.y },
-      { x = pt.x,     z = pt.z - 2, y = pt.y },
-    }
-
-    local cpt = Point.closest(turtle.point, pts)
-
-    local blocks = { }
-
-    local function addBlocks(tpt)
-      table.insert(blocks, tpt)
-      local apts = Point.adjacentPoints(tpt)
-      for _,apt in pairs(apts) do
-        table.insert(blocks, apt)
-      end
-    end
-
-    -- don't run into player
-    addBlocks(pt)
-    addBlocks({ x = pt.x, z = pt.z, y = pt.y + 1 })
-
-    if turtle.pathfind(cpt, { blocks = blocks }) then
-      turtle.headTowards(pt)
-    end
-    following = false
-  end)
-
-  Event.onInterval(.5, function()
-
-    local function getRemotePoint()
-      if not turtle.isAborted() then
-        if socket:write({ type = 'gps' }) then
-          return socket:read(3)
-        end
-      end
-    end
-
-    -- sometimes gps will fail if moving
-    local pt, d
-
-    for _ = 1, 3 do
-      pt, d = getRemotePoint()
-      if pt then
-        break
-      end
-      os.sleep(.5)
-    end
-
-    if not pt or turtle.isAborted() then
-      error('Did not receive GPS location')
-    end
-
-    if not lastPoint or (lastPoint.x ~= pt.x or lastPoint.y ~= pt.y or lastPoint.z ~= pt.z) then
-
-      if following then
-        turtle.getState().abort = true
-        while following do
-          os.sleep(.1)
-        end
-        turtle.getState().abort = false
-      end
-
-      -- check if gps is inaccurate (player moving too fast)
-      if d < Point.distance(turtle.point, pt) + 10 then
-        lastPoint = Point.copy(pt)
-        following = true
-        os.queueEvent('turtle_follow', pt)
-      end
-    end
-  end)
-
-  Event.on('turtle_abort', function()
-    Event.exitPullEvents()
-  end)
-
-  Event.pullEvents()
-
-  socket:close()
-
-  return true
-end
-
-local s, m = turtle.run(function() follow({COMPUTER_ID}) end)
-if not s and m then
-  error(m)
-end