Merge branch 'develop'

2016-12-27 16:01:30 -05:00 · 2016-12-27 16:01:30 -05:00 · 482c52b36f
parent 1d915ed928 c2500f0167
commit 482c52b36f
27 changed files with 2014 additions and 753 deletions
--- a/apps/Files.lua
+++ b/apps/Files.lua
@ -35,26 +35,32 @@ local Browser = UI.Page {
  },
  fileMenu = UI.DropMenu {
    buttons = {
-      { text = 'Run',          event = 'run'     },
-      { text = 'Edit    e',    event = 'edit'    },
-      { text = 'Shell   s',    event = 'shell'   },
-      { text = 'Quit    q',    event = 'quit'    },
+      { text = 'Run',             event = 'run'    },
+      { text = 'Edit       e',    event = 'edit'   },
+      { text = 'Shell      s',    event = 'shell'  },
+      UI.Text { value = ' ------------ '           },
+      { text = 'Quit       q',    event = 'quit'   },
+      UI.Text { },
    }
  },
  editMenu = UI.DropMenu {
    buttons = {
-      { text = 'Mark        m', event = 'mark'   },
-      { text = 'Cut        ^x', event = 'cut'    },
-      { text = 'Copy       ^c', event = 'copy'   },
-      { text = 'Paste      ^v', event = 'paste'  },
-      { text = 'Delete    del', event = 'delete' },
-      { text = 'Unmark all  u', event = 'unmark' },
+      { text = 'Cut          ^x', event = 'cut'    },
+      { text = 'Copy         ^c', event = 'copy'   },
+      { text = 'Paste        ^v', event = 'paste'  },
+      UI.Text { value = ' --------------- '        },
+      { text = 'Mark          m', event = 'mark'   },
+      { text = 'Unmark all    u', event = 'unmark' },
+      UI.Text { value = ' --------------- '        },
+      { text = 'Delete      del', event = 'delete' },
+      UI.Text { },
    }
  },
  viewMenu = UI.DropMenu {
    buttons = {
-      { text = 'Refresh   r',   event = 'refresh'       },
-      { text = 'Hidden   ^h',   event = 'toggle_hidden' },
+      { text = 'Refresh     r',   event = 'refresh'       },
+      { text = 'Hidden     ^h',   event = 'toggle_hidden' },
+      UI.Text { },
    }
  },
  grid = UI.ScrollingGrid {
@ -69,8 +75,8 @@ local Browser = UI.Page {
  },
  statusBar = UI.StatusBar {
    columns = { 
-      { '',       'status',    UI.term.width - 19 },
-      { '',       'info',      10                 },
+      { '',       'status',    UI.term.width - 8 },
+      --{ '',       'info',      10                 },
      { 'Size: ', 'totalSize', 8                  },
    },
  },
--- a/apps/Lua.lua
+++ b/apps/Lua.lua
@ -1,4 +1,5 @@
-require = requireInjector(getfenv(1))
+local injector = requireInjector or load(http.get('http://pastebin.com/raw/c0TWsScv').readAll())()
+require = injector(getfenv(1))
 local Util = require('util')
 local UI = require('ui')
 local Event = require('event')
@ -6,7 +7,7 @@ local History = require('history')

 local sandboxEnv = Util.shallowCopy(getfenv(1))
 sandboxEnv.exit = function() Event.exitPullEvents() end
-sandboxEnv.require = requireInjector(sandboxEnv)
+sandboxEnv.require = injector(sandboxEnv)
 setmetatable(sandboxEnv, { __index = _G })

 multishell.setTitle(multishell.getCurrent(), 'Lua')
@ -15,12 +16,12 @@ UI:configure('Lua', ...)
 local command = ''
 local history = History.load('.lua_history', 25)

-local resultsPage = UI.Page({
+local page = UI.Page({
  menuBar = UI.MenuBar({
    buttons = {
      { text = 'Local',  event = 'local'  },
      { text = 'Global', event = 'global' },
-      { text = 'Device', event = 'device' },
+      { text = 'Device', event = 'device', name = 'Device' },
    },
  }),
  prompt = UI.TextEntry({
@ -29,10 +30,11 @@ local resultsPage = UI.Page({
    backgroundFocusColor = colors.black,
    limit = 256,
    accelerators = {
-      enter            = 'command_enter',
-      up               = 'history_back',
-      down             = 'history_forward',
-      mouse_rightclick = 'clear_prompt',
+      enter               = 'command_enter',
+      up                  = 'history_back',
+      down                = 'history_forward',
+      mouse_rightclick    = 'clear_prompt',
+--      [ 'control-space' ] = 'autocomplete',
    },
  }),
  grid = UI.ScrollingGrid({
@ -47,7 +49,7 @@ local resultsPage = UI.Page({
  notification = UI.Notification(),
 })

-function resultsPage:setPrompt(value, focus)
+function page:setPrompt(value, focus)
  self.prompt:setValue(value)
  self.prompt.scroll = 0
  self.prompt:setPosition(#value)
@ -59,29 +61,77 @@ function resultsPage:setPrompt(value, focus)

  self.prompt:draw()
  if focus then
-    resultsPage:setFocus(self.prompt)
+    page:setFocus(self.prompt)
  end
 end

-function resultsPage:enable()
+function page:enable()
  self:setFocus(self.prompt)
  UI.Page.enable(self)
+  if not device then
+    self.menuBar.Device:disable()
+  end
 end

-function resultsPage:eventHandler(event)
+local function autocomplete(env, oLine, x)
+
+  local sLine = oLine:sub(1, x)
+  local nStartPos = sLine:find("[a-zA-Z0-9_%.]+$")
+  if nStartPos then
+    sLine = sLine:sub(nStartPos)
+  end
+
+  if #sLine > 0 then
+    local results = textutils.complete(sLine, env)
+
+    if #results == 0 then
+--      setError('No completions available')
+
+    elseif #results == 1 then
+      return Util.insertString(oLine, results[1], x + 1)
+
+    elseif #results > 1 then
+      local prefix = results[1]
+      for n = 1, #results do
+        local result = results[n]
+        while #prefix > 0 do
+          if result:find(prefix, 1, true) == 1 then
+            break
+          end
+          prefix = prefix:sub(1, #prefix - 1)
+        end
+      end
+      if #prefix > 0 then
+        return Util.insertString(oLine, prefix, x + 1)
+      else
+--        setStatus('Too many results')
+      end
+    end
+  end
+  return oLine
+end
+
+function page:eventHandler(event)

  if event.type == 'global' then
-    resultsPage:setPrompt('', true)
+    self:setPrompt('', true)
    self:executeStatement('getfenv(0)')
    command = nil

  elseif event.type == 'local' then
-    resultsPage:setPrompt('', true)
+    self:setPrompt('', true)
    self:executeStatement('getfenv(1)')
    command = nil

+  elseif event.type == 'autocomplete' then
+    local sz = #self.prompt.value
+    local pos = self.prompt.pos
+    self:setPrompt(autocomplete(sandboxEnv, self.prompt.value, self.prompt.pos))
+    self.prompt:setPosition(pos + #self.prompt.value - sz)
+    self.prompt:updateCursor()
+
  elseif event.type == 'device' then
-    resultsPage:setPrompt('device', true)
+    self:setPrompt('device', true)
    self:executeStatement('device')

  elseif event.type == 'history_back' then
@ -128,7 +178,7 @@ function resultsPage:eventHandler(event)
  return true
 end

-function resultsPage:setResult(result)
+function page:setResult(result)
  local t = { }

  local function safeValue(v)
@ -169,7 +219,7 @@ function resultsPage:setResult(result)
  self:draw()
 end

-function resultsPage.grid:eventHandler(event)
+function page.grid:eventHandler(event)

  local entry = self:getSelected()

@ -199,18 +249,18 @@ function resultsPage.grid:eventHandler(event)

  if event.type == 'grid_focus_row' then
    if self.focused then
-      resultsPage:setPrompt(commandAppend())
+      page:setPrompt(commandAppend())
    end
  elseif event.type == 'grid_select' then
-    resultsPage:setPrompt(commandAppend(), true)
-    resultsPage:executeStatement(commandAppend())
+    page:setPrompt(commandAppend(), true)
+    page:executeStatement(commandAppend())
  else
    return UI.Grid.eventHandler(self, event)
  end
  return true
 end

-function resultsPage:rawExecute(s)
+function page:rawExecute(s)

  local fn, m = loadstring("return (" .. s .. ')', 'lua')
  if not fn then
@ -225,7 +275,7 @@ function resultsPage:rawExecute(s)
  return fn, m
 end

-function resultsPage:executeStatement(statement)
+function page:executeStatement(statement)

  command = statement

@ -233,6 +283,8 @@ function resultsPage:executeStatement(statement)

  if s and m then
    self:setResult(m)
+  elseif s and type(m) == 'boolean' then
+    self:setResult(m)
  else
    self.grid:setValues({ })
    self.grid:draw()
@ -242,6 +294,13 @@ function resultsPage:executeStatement(statement)
  end
 end

-UI:setPage(resultsPage)
+local args = { ... }
+if args[1] then
+  command = 'args[1]'
+  sandboxEnv.args = args
+  page:setResult(args[1])
+end
+
+UI:setPage(page)
 Event.pullEvents()
 UI.term:reset()
--- a/apps/Network.lua
+++ b/apps/Network.lua
@ -7,37 +7,37 @@ multishell.setTitle(multishell.getCurrent(), 'Network')
 UI:configure('Network', ...)

 local gridColumns = {
-  { heading = 'Label',  key = 'label'     },
-  { heading = 'Dist',   key = 'distance'  },
-  { heading = 'Status', key = 'status'    },
+  { heading = 'Label',  key = 'label'    },
+  { heading = 'Dist',   key = 'distance' },
+  { heading = 'Status', key = 'status'   },
 }

 if UI.term.width >= 30 then
-  table.insert(gridColumns, { heading = 'Fuel',   key = 'fuel' })
+  table.insert(gridColumns, { heading = 'Fuel',   key = 'fuel'   })
  table.insert(gridColumns, { heading = 'Uptime', key = 'uptime' })
 end

-local page = UI.Page({
-  menuBar = UI.MenuBar({
+local page = UI.Page {
+  menuBar = UI.MenuBar {
    buttons = {
      { text = 'Telnet', event = 'telnet' },
      { text = 'VNC',    event = 'vnc'    },
      { text = 'Reboot', event = 'reboot' },
    },
-  }),
-  grid = UI.ScrollingGrid({
+  },
+  grid = UI.ScrollingGrid {
    y = 2,
    values = network,
    columns = gridColumns,
    sortColumn = 'label',
    autospace = true,
-  }),
-  notification = UI.Notification(),
+  },
+  notification = UI.Notification { },
  accelerators = {
    q = 'quit',
    c = 'clear',
  },
-})
+}

 function sendCommand(host, command)

@ -60,7 +60,7 @@ function sendCommand(host, command)
 end

 function page:eventHandler(event)
-  local t = self.grid.selected
+  local t = self.grid:getSelected()
  if t then
    if event.type == 'telnet' or event.type == 'grid_select' then
      multishell.openTab({
@ -113,22 +113,14 @@ function page.grid:getDisplayValues(row)
  return row
 end

-function page.grid:draw()
-  self:adjustWidth()
-  UI.Grid.draw(self)
-  if page.notification.enabled then
-    page.notification:draw()
-  end
-end
-
-function updateComputers()
+Event.addThread(function()
  while true do
    page.grid:update()
    page.grid:draw()
    page:sync()
    os.sleep(1)
  end
-end
+end)

 Event.addHandler('device_attach', function(h, deviceName)
  if deviceName == 'wireless_modem' then
@ -149,5 +141,5 @@ if not device.wireless_modem then
 end

 UI:setPage(page)
-Event.pullEvents(updateComputers)
+Event.pullEvents()
 UI.term:reset()
--- a/apps/Overview.lua
+++ b/apps/Overview.lua
@ -6,6 +6,7 @@ local Config = require('config')
 local NFT = require('nft')
 local class = require('class')
 local FileUI = require('fileui')
+local Tween = require('tween')

 multishell.setTitle(multishell.getCurrent(), 'Overview')
 UI:configure('Overview', ...)
@ -190,8 +191,9 @@ function page.container:setCategory(categoryName)

  -- reposition all children
  for k,child in ipairs(self.children) do
-    child.x = col
-    child.y = row
+    child.x = -10
+    child.y = math.floor(self.height)
+    child.tween = Tween.new(6, child, { x = col, y = row }, 'outSine')

    if k < count then
      col = col + child.width
@ -203,6 +205,25 @@ function page.container:setCategory(categoryName)
  end

  self:initChildren()
+  self.animate = true
+end
+
+function page.container:draw()
+  if self.animate then
+    self.animate = false
+    for i = 1, 6 do
+      for _,child in ipairs(self.children) do
+        child.tween:update(1)
+        child.x = math.floor(child.x)
+        child.y = math.floor(child.y)
+      end
+      UI.ViewportWindow.draw(self)
+      self:sync()
+      os.sleep()
+    end
+  else
+    UI.ViewportWindow.draw(self)
+  end
 end

 function page:refresh()
@ -223,6 +244,8 @@ function page:eventHandler(event)
    self.tabBar:selectTab(event.button.text)
    self.container:setCategory(event.button.text)
    self.container:draw()
+    self:sync()
+
    config.currentCategory = event.button.text
    Config.update('Overview', config)

@ -263,9 +286,9 @@ function page:eventHandler(event)

  elseif event.type == 'tab_change' then
    if event.current > event.last then
-      self.container:setTransition('left')
+      --self.container:setTransition(UI.effect.slideLeft)
    else
-      self.container:setTransition('right')
+      --self.container:setTransition(UI.effect.slideRight)
    end

  elseif event.type == 'refresh' then
@ -308,61 +331,53 @@ function page:eventHandler(event)
 end

 local formWidth = math.max(UI.term.width - 14, 26)
-local gutter = math.floor((UI.term.width - formWidth) / 2) + 1

-local editor = UI.Page({
-  backgroundColor = colors.blue,
-  form = UI.Form({
-    fields = {
-      { label = 'Title', key = 'title', width = 15, limit = 11, display = UI.Form.D.entry,
-        help = 'Application title' },
-      { label = 'Run', key = 'run', width = formWidth - 11, limit = 100, display = UI.Form.D.entry,
-        help = 'Full path to application' },
-      { label = 'Category', key = 'category', width = 15, limit = 11, display = UI.Form.D.entry,
-        help = 'Category of application' },
-      { text = 'Accept', event = 'accept', display = UI.Form.D.button,
-          x = 1, y = 9, width = 10 },
-      { text = 'Cancel', event = 'cancel', display = UI.Form.D.button,
-          x = formWidth - 11, y = 9, width = 10 },
-    },
-    labelWidth = 8,
-    x = gutter + 1,
-    y = math.max(2, math.floor((UI.term.height - 9) / 2)),
+local editor = UI.Dialog {
+  height = 11,
+  width = formWidth,
+  title = 'Edit application',
+  form = UI.Form {
+    y = 2,
    height = 9,
-    width = UI.term.width - (gutter * 2),
-    image = UI.NftImage({
-      y = 5,
-      x = 1,
+    title = UI.TextEntry {
+      formLabel = 'Title', formKey = 'title', limit = 11, help = 'Application title',
+      required = true,
+    },
+    run = UI.TextEntry {
+      formLabel = 'Run', formKey = 'run', limit = 100, help = 'Full path to application',
+      required = true,
+    },
+    category = UI.TextEntry {
+      formLabel = 'Category', formKey = 'category', limit = 11, help = 'Category of application',
+      required = true,
+    },
+    loadIcon = UI.Button {
+      x = 11, y = 6, 
+      text = 'Icon', event = 'loadIcon', help = 'Select icon'
+    },
+    image = UI.NftImage {
+      y = 6,
+      x = 2,
      height = 3,
      width = 8,
-    }),
-    button = UI.Button({
-      x = 10,
-      y = 6,
-      text = 'Load icon',
-      width = 11,
-      event = 'loadIcon',
-    }),
-  }),
+    },
+  },
  statusBar = UI.StatusBar(),
-  notification = UI.Notification(),
  iconFile = '',
-})
+}

 function editor:enable(app)
  if app then
-    self.original = app
-    self.form:setValues(Util.shallowCopy(app))
+    self.form:setValues(app)

    local icon
    if app.icon then
      icon = parseIcon(app.icon)
    end
    self.form.image:setImage(icon)
-
-    self:setFocus(self.form.children[1])
  end
  UI.Page.enable(self)
+  self:focusFirst()
 end

 function editor.form.image:draw()
@ -370,11 +385,11 @@ function editor.form.image:draw()
  UI.NftImage.draw(self)
 end

-function editor:updateApplications(app, original)
-  if original.run then
-    local _,k = Util.find(applications, 'run', original.run)
-    if k then
+function editor:updateApplications(app)
+  for k,v in pairs(applications) do
+    if v == app then
      applications[k] = nil
+      break
    end
  end
  table.insert(applications, app)
@ -383,7 +398,7 @@ end

 function editor:eventHandler(event)

-  if event.type == 'cancel' then
+  if event.type == 'form_cancel' or event.type == 'cancel' then
    UI:setPreviousPage()

  elseif event.type == 'focus_change' then
@ -391,7 +406,15 @@ function editor:eventHandler(event)
    self.statusBar:draw()

  elseif event.type == 'loadIcon' then
-    UI:setPage(FileUI(), fs.getDir(self.iconFile), function(fileName)
+    local fileui = FileUI({
+      x = self.x,
+      y = self.y,
+      z = 2,
+      width = self.width,
+      height = self.height,
+    })
+    --fileui:setTransition(UI.effect.explode)
+    UI:setPage(fileui, fs.getDir(self.iconFile), function(fileName)
      if fileName then
        self.iconFile = fileName
        local s, m = pcall(function()
@ -408,23 +431,21 @@ function editor:eventHandler(event)
          self.form.image:draw()
        end)
        if not s and m then
-          self.notification:error(m:gsub('.*: (.*)', '%1'))
+          local msg = m:gsub('.*: (.*)', '%1')
+          page.notification:error(msg)
        end
      end
    end)

-  elseif event.type == 'accept' then
+  elseif event.type == 'form_invalid' then
+    page.notification:error(event.message)
+
+  elseif event.type == 'form_complete' then
    local values = self.form.values
-    if #values.run > 0 and #values.title > 0 and #values.category > 0 then
-      UI:setPreviousPage()
-      self:updateApplications(values, self.original)
-      page:refresh()
-      page:draw()
-    else
-      self.notification:error('Require fields missing')
-      --self.statusBar:setStatus('Require fields missing')
-      --self.statusBar:draw()
-    end
+    UI:setPreviousPage()
+    self:updateApplications(values)
+    page:refresh()
+    page:draw()
  else
    return UI.Page.eventHandler(self, event)
  end
--- a/apps/Peripherals.lua
+++ b/apps/Peripherals.lua
@ -1,4 +1,5 @@
-require = requireInjector(getfenv(1))
+local injector = requireInjector or load(http.get('http://pastebin.com/raw/c0TWsScv').readAll())()
+require = injector(getfenv(1))
 local Util = require('util')
 local Event = require('event')
 local UI = require('ui')
--- a/apps/Script.lua
+++ b/apps/Script.lua
@ -8,7 +8,7 @@ local GROUPS_PATH = '/apps/groups'
 local SCRIPTS_PATH = '/apps/scripts'

 multishell.setTitle(multishell.getCurrent(), 'Script')
-UI:configure('Script', ...)
+UI:configure('script', ...)

 local config = {
  showGroups = false,
@ -17,7 +17,7 @@ local config = {
  }]],
 }

-Config.load('Script', config)
+Config.load('script', config)

 local width = math.floor(UI.term.width / 2) - 1
 if UI.term.width % 2 ~= 0 then
@ -453,7 +453,7 @@ function mainPage:eventHandler(event)
 --    self.statusBar.toggleButton.text = text
    self:draw()

-    Config.update('Script', config)
+    Config.update('script', config)

  elseif event.type == 'grid_focus_row' then
    local computer = self.computers:getSelected()
--- a/apps/System.lua
+++ b/apps/System.lua
@ -75,7 +75,7 @@ local systemPage = UI.Page {
        value = 'Label'
      },
      label = UI.TextEntry {
-        x = 9, y = 2, rex = -12,
+        x = 9, y = 2, rex = -4,
        limit = 32,
        value = os.getComputerLabel(),
        backgroundFocusColor = colors.black,
--- a/apps/Tabs.lua
+++ b/apps/Tabs.lua
@ -62,11 +62,6 @@ function page.grid:getDisplayValues(row)
  return row
 end

-function page.grid:draw()
-  self:adjustWidth()
-  UI.Grid.draw(self)
-end
-
 Event.addTimer(1, true, function()
  page.grid:update()
  page.grid:draw()
--- a/apps/edit.lua
+++ b/apps/edit.lua
@ -33,6 +33,12 @@ local clipboard = { size, internal }
 local searchPattern
 local undo      = { chain = { }, pointer = 0 }

+if _G.__CLIPBOARD then
+  clipboard = _G.__CLIPBOARD
+else
+  _G.__CLIPBOARD = clipboard
+end
+
 local color = {
  textColor       = '0',
  keywordColor    = '4',
@ -66,7 +72,7 @@ local keyMapping = {
  pageUp                    = 'pageUp',
  [ 'control-b'           ] = 'pageUp',
  pageDown                  = 'pageDown',
-  [ 'control-f'           ] = 'pageDown',
+--  [ 'control-f'           ] = 'pageDown',
  home                      = 'home',
  [ 'end'                 ] = 'toend',
  [ 'control-home'        ] = 'top',
@ -101,6 +107,7 @@ local keyMapping = {
  paste                     = 'paste',
  tab                       = 'tab',
  [ 'control-z'           ] = 'undo',
+  [ 'control-space'       ] = 'autocomplete',

  -- copy/paste
  [ 'control-x'           ] = 'cut',
@ -114,6 +121,7 @@ local keyMapping = {
  [ 'control-enter'       ] = 'run',

  -- search
+  [ 'control-f'           ] = 'find_prompt',
  [ 'control-slash'       ] = 'find_prompt',
  [ 'control-n'           ] = 'find_next',

@ -476,6 +484,41 @@ local __actions = {
    end
  end,

+  autocomplete = function()
+    local sLine = tLines[y]:sub(1, x - 1)
+    local nStartPos = sLine:find("[a-zA-Z0-9_%.]+$")
+    if nStartPos then
+      sLine = sLine:sub(nStartPos)
+    end
+    if #sLine > 0 then
+      local results = textutils.complete(sLine)
+
+      if #results == 0 then
+        setError('No completions available')
+
+      elseif #results == 1 then
+        actions.insertText(x, y, results[1])
+
+      elseif #results > 1 then
+        local prefix = results[1]
+        for n = 1, #results do
+          local result = results[n]
+          while #prefix > 0 do
+            if result:find(prefix, 1, true) == 1 then
+              break
+            end
+            prefix = prefix:sub(1, #prefix - 1)
+          end
+        end
+        if #prefix > 0 then
+          actions.insertText(x, y, prefix)
+        else
+          setStatus('Too many results')
+        end
+      end
+    end
+  end,
+
  refresh = function()
    actions.dirty_all()
    mark.continue = mark.active
@ -528,7 +571,7 @@ local __actions = {
  find_prompt = function()
    local text = actions.input('/')
    if #text > 0 then
-      searchPattern = text
+      searchPattern = text:lower()
      if searchPattern then
        actions.unmark()
        actions.find(searchPattern, x)
--- a/apps/recorder.lua
+++ b/apps/recorder.lua
@ -14,12 +14,17 @@ local version = "Version 1.1.6"
 -- Original code by Bomb Bloke
 -- Modified to integrate with opus os

-local calls, recTerm, oldTerm, arg, showInput, skipLast, lastDelay, curInput, callCount, callListCount = {{["delay"] = 0}}, {}, Util.shallowCopy(multishell.term), {...}, false, false, 2, "", 1, 2
-local curBlink, oldBlink, curCalls, tTerm, buffer, colourNum, xPos, yPos, oldXPos, oldYPos, tCol, bCol, xSize, ySize = false, false, calls[1], {}, {}, {}, 1, 1, 1, 1, colours.white, colours.black, term.getSize()
+local recTerm, oldTerm, arg, showInput, skipLast, lastDelay, curInput = {}, Util.shallowCopy(multishell.term), {...}, false, false, 2, ""
+local curBlink, oldBlink, tTerm, buffer, colourNum, xPos, yPos, oldXPos, oldYPos, tCol, bCol, xSize, ySize = false, false, {}, {}, {}, 1, 1, 1, 1, colours.white, colours.black, oldTerm.getSize()
 local greys, buttons = {["0"] = true, ["7"] = true, ["8"] = true, ["f"] = true}, {"l", "r", "m"}
 local charW, charH, chars, resp
 local filename

+local calls = { }
+local curCalls = { delay = 0 }
+local callListCount = 0
+local callCount = 0
+
 local function showSyntax()
 	print('Gif Recorder by Bomb Bloke\n')
 	print('Syntax: recGif [-i] [-s] [-ld:<delay>] filename')
@ -123,13 +128,14 @@ recTerm = multishell.term

 for key, func in pairs(oldTerm) do
 	recTerm[key] = function(...)
-		local result = {pcall(func, ...)}
+		local result = { func(...) }
 		
-		if result[1] then
-			curCalls[callCount] = {key, ...}
-			callCount = callCount + 1
-			return unpack(result, 2)
-		else error(result[2], 2) end
+		if callCount == 0 then
+			os.queueEvent('capture_frame')
+		end
+		callCount = callCount + 1
+		curCalls[callCount] = { key, ... }
+		return unpack(result)
 	end
 end

@ -149,36 +155,27 @@ for _,tab in pairs(tabs) do
 	end
 end

-do
-	local curTime = os.clock() - 1
+local curTime = os.clock() - 1

-	while true do
-		local event = { os.pullEventRaw() }
+while true do
+	local event = { os.pullEventRaw() }

-		if event[1] == 'recorder_stop' or event[1] == 'terminate' then
-			break
-  	end
+	if event[1] == 'recorder_stop' or event[1] == 'terminate' then
+		break
+	end

+	if event[1] == 'capture_frame' then
 		local newTime = os.clock()

-		if newTime ~= curTime then
-			local delay = curCalls.delay + (newTime - curTime)
-			curTime = newTime
-
-			if callCount > 1 then
-				curCalls.delay = curCalls.delay + delay
-				curCalls, callCount = {["delay"] = 0}, 1
-				calls[callListCount] = curCalls
-				callListCount = callListCount + 1
-			elseif callListCount > 2 then
-				calls[callListCount - 2].delay = calls[callListCount - 2].delay + delay
-			end
+		if callListCount > 0 then
+			calls[callListCount].delay = (newTime - curTime)
 		end

-		if showInput and (event[1] == "key" or event[1] == "mouse_click") then
-			curCalls[callCount] = {unpack(event)}
-			callCount = callCount + 1
-		end
+		curTime = newTime
+		callListCount = callListCount + 1
+		calls[callListCount] = curCalls
+
+		curCalls, callCount = { delay = 0 }, 0
 	end
 end

@ -196,8 +193,6 @@ if skipLast and #calls > 1 then calls[#calls] = nil end

 calls[#calls].delay = lastDelay

-- Recording done, bug user as to whether to encode it:
-
 print(string.format("Encoding %d frames...", #calls))
 --Util.writeTable('tmp/raw.txt', calls)

@ -463,7 +458,14 @@ for i = 1, #calls do
 	
 	oldBlink, oldXPos, oldYPos = curBlink, xPos, yPos
 	
-	local thisFrame = {["xstart"] = (xMin - 1) * charW, ["ystart"] = (yMin - 1) * charH, ["xend"] = (xMax - xMin + 1) * charW, ["yend"] = (yMax - yMin + 1) * charH, ["delay"] = curCalls.delay, ["disposal"] = 1}
+	local thisFrame = {
+		["xstart"] = (xMin - 1) * charW,
+		["ystart"] = (yMin - 1) * charH,
+		["xend"] = (xMax - xMin + 1) * charW,
+		["yend"] = (yMax - yMin + 1) * charH,
+		["delay"] = curCalls.delay,
+		["disposal"] = 1
+	}
 	
 	for y = 1, (yMax - yMin + 1) * charH do
 		local row = {}
@ -515,7 +517,11 @@ for i = 1, #calls do
 		snooze()
 	end
 	
-	if changed then image[#image + 1] = thisFrame else image[#image].delay = image[#image].delay + curCalls.delay end
+	if changed then 
+		image[#image + 1] = thisFrame
+	else
+		image[#image].delay = image[#image].delay + curCalls.delay
+	end
 end

 buffer = nil
--- a/apps/simpleMiner.lua
+++ b/apps/simpleMiner.lua
@ -212,7 +212,7 @@ function enderChestUnload()
 
    turtle.select(1)
    turtle.drop(64)
-    turtle.digDown()  
+    turtle.digDown()
  end
 end

@ -246,8 +246,9 @@ function makeWalkableTunnel(action, tpt, pt)
  if action ~= 'turn' and not Point.compare(tpt, { x = 0, z = 0 }) then -- not at source
    if not Point.compare(tpt, pt) then                                  -- not at dest
      local r, block = turtle.inspectUp()
-      if r and block.name ~= 'minecraft:cobblestone' then
-        if block.name ~= 'minecraft:chest' then
+      if r and not turtle.isTurtleAtSide('top') then
+        if block.name ~= 'minecraft:cobblestone' and
+           block.name ~= 'minecraft:chest' then
          turtle.digUp()
        end
      end
@ -483,7 +484,10 @@ function boreCommand()

  turtle.clearMoveCallback()

+  -- location is either mined, currently being mined or is the
+  -- dropoff point for a turtle
  if inspect(turtle.getAction('up'),   'minecraft:cobblestone') or
+     inspect(turtle.getAction('up'),   'minecraft:chest') or
     inspect(turtle.getAction('down'), 'minecraft:cobblestone') then
     return true
  end
--- a/apps/storageManager.lua
+++ b/apps/storageManager.lua
@ -452,51 +452,54 @@ function watchResources(items)
  return itemList
 end

-itemPage = UI.Page({
+itemPage = UI.Page {
  backgroundColor = colors.lightGray,
-  titleBar = UI.TitleBar({
+  titleBar = UI.TitleBar {
    title = 'Limit Resource',
    previousPage = true,
+    event = 'form_cancel',
    backgroundColor = colors.green
-  }),
-  idField = UI.Text({
-    x = 5,
-    y = 3,
-    width = UI.term.width - 10
-  }),
-  form = UI.Form({
-    fields = {
-      { label = 'Min', key = 'low', width = 7, display = UI.Form.D.entry,
-        help = 'Craft if below min' },
-      { label = 'Max', key = 'limit', width = 7, display = UI.Form.D.entry,
-        validation = UI.Form.V.number, dataType = UI.Form.T.number,
-        help = 'Eject if above max' },
-      { label = 'Autocraft', key = 'auto', width = 7, display = UI.Form.D.chooser,
-        nochoice = 'No',
-        choices = {
-          { name = 'Yes', value = 'yes' },
-          { name = 'No', value = 'no' },
-        },
-        help = 'Craft until out of ingredients' },
-      { label = 'Ignore Dmg', key = 'ignore_dmg', width = 7, display = UI.Form.D.chooser,
-        nochoice = 'No',
-        choices = {
-          { name = 'Yes', value = 'yes' },
-          { name = 'No', value = 'no' },
-        },
-        help = 'Ignore damage of item' },
-      { text = 'Accept', event = 'accept', display = UI.Form.D.button,
-          x = 1, y = 6, width = 10 },
-      { text = 'Cancel', event = 'cancel', display = UI.Form.D.button,
-          x = 21, y = 6, width = 10 },
+  },
+  idField = UI.Text {
+    x = 5, y = 3, width = UI.term.width - 10,
+  },
+  form = UI.Form {
+    x = 4, y = 4, height = 8, rex = -4,
+    [1] = UI.TextEntry {
+      width = 7,
+      backgroundColor = colors.gray,
+      backgroundFocusColor = colors.gray,
+      formLabel = 'Min', formKey = 'low', help = 'Craft if below min'
    },
-    labelWidth = 10,
-    x = 5,
-    y = 5,
-    height = 6
-  }),
-  statusBar = UI.StatusBar()
-})
+    [2] = UI.TextEntry {
+      width = 7,
+      backgroundColor = colors.gray,
+      backgroundFocusColor = colors.gray,
+      formLabel = 'Max', formKey = 'limit', help = 'Eject if above max'
+    },
+    [3] = UI.Chooser {
+      width = 7,
+      formLabel = 'Autocraft', formKey = 'auto',
+      nochoice = 'No',
+      choices = {
+        { name = 'Yes', value = 'yes' },
+        { name = 'No', value = 'no' },
+      },
+      help = 'Craft until out of ingredients'
+    },
+    [4] = UI.Chooser {
+      width = 7,
+      formLabel = 'Ignore Dmg', formKey = 'ignore_dmg',
+      nochoice = 'No',
+      choices = {
+        { name = 'Yes', value = 'yes' },
+        { name = 'No', value = 'no' },
+      },
+      help = 'Ignore damage of item'
+    },
+  },
+  statusBar = UI.StatusBar { }
+}

 function itemPage:enable()
  UI.Page.enable(self)
@ -504,12 +507,14 @@ function itemPage:enable()
 end
 
 function itemPage:eventHandler(event)
-  if event.type == 'cancel' then
+  if event.type == 'form_cancel' then
    UI:setPreviousPage()
+
  elseif event.type == 'focus_change' then
    self.statusBar:setStatus(event.focused.help)
    self.statusBar:draw()
-  elseif event.type == 'accept' then
+
+  elseif event.type == 'form_complete' then
    local values = self.form.values
    local t = Util.readTable('resource.limits') or { }
    for k,v in pairs(t) do
@ -527,55 +532,52 @@ function itemPage:eventHandler(event)
    table.insert(t, filtered)
    Util.writeTable('resource.limits', t)
    UI:setPreviousPage()
+
  else
    return UI.Page.eventHandler(self, event)
  end
  return true
 end

-listingPage = UI.Page({
-  menuBar = UI.MenuBar({
+listingPage = UI.Page {
+  menuBar = UI.MenuBar {
    buttons = {
      { text = 'Learn',  event = 'learn'  },
      { text = 'Forget', event = 'forget' },
    },
-  }),
-  grid = UI.Grid({
+  },
+  grid = UI.Grid {
+    y = 2, height = UI.term.height - 2,
    columns = {
      { heading = 'Name', key = 'name' , width = 22 },
      { heading = 'Qty',  key = 'qty'  , width = 5  },
      { heading = 'Min',  key = 'low'  , width = 4  },
      { heading = 'Max',  key = 'limit', width = 4  },
    },
-    y = 2,
    sortColumn = 'name',
-    height = UI.term.height-2,
-  }),
-  statusBar = UI.StatusBar({
+  },
+  statusBar = UI.StatusBar {
    backgroundColor = colors.gray,
    width = UI.term.width,
-    filterText = UI.Text({
+    filterText = UI.Text {
+      x = 2, width = 6,
      value = 'Filter',
-      x = 2,
-      width = 6,
-    }),
-    filter = UI.TextEntry({
-      width = 19,
+    },
+    filter = UI.TextEntry {
+      x = 9, width = 19,
      limit = 50,
-      x = 9,
-    }),
-    refresh = UI.Button({
+    },
+    refresh = UI.Button {
+      x = 31, width = 8,
      text = 'Refresh', 
      event = 'refresh',
-      x = 31,
-      width = 8
-    }),
-  }),
+    },
+  },
  accelerators = {
    r = 'refresh',
    q = 'quit',
  }
-})
+}

 function listingPage.grid:getRowTextColor(row, selected)
  if row.is_craftable then
@ -622,24 +624,26 @@ end
 function listingPage:eventHandler(event)
  if event.type == 'quit' then
    Event.exitPullEvents()
+
  elseif event.type == 'grid_select' then
    local selected = event.selected
    itemPage.form:setValues(selected)
    itemPage.titleBar.title = selected.name
    itemPage.idField.value = selected.id
    UI:setPage('item')
+
  elseif event.type == 'refresh' then
    self:refresh()
    self.grid:draw()
+
  elseif event.type == 'learn' then
    if not duckAntenna then
      self.statusBar:timedStatus('Missing peripherals', 3)
    else
-      UI:getPage('craft').form:setValues( { ignore_dmg = 'no' } )
      UI:setPage('craft')
    end
-  elseif event.type == 'forget' then

+  elseif event.type == 'forget' then
    local item = self.grid:getSelected()
    if item then
      local recipes = Util.readTable('recipes') or { }
@ -673,6 +677,7 @@ function listingPage:eventHandler(event)
    self:applyFilter()
    self.grid:draw()
    self.statusBar.filter:focus()
+
  else
    UI.Page.eventHandler(self, event)
  end
@ -747,7 +752,7 @@ local function filter(t, filter)
  end
 end

-local function learnRecipe(page, ignore_dmg)
+local function learnRecipe(page)
  local t = Util.readTable('recipes') or { }
  local recipe = { }
  local ingredients = duckAntenna.getAllStacks(false) -- getTurtleInventory()
@ -773,7 +778,7 @@ local function learnRecipe(page, ignore_dmg)
          end
        end
        recipe.ingredients = ingredients
-        recipe.ignore_dmg = 'no' -- ignore_dmg
+        recipe.ignore_dmg = 'no'

        t[key] = recipe

@ -794,69 +799,52 @@ local function learnRecipe(page, ignore_dmg)
  end
 end

-craftPage = UI.Page({
-  x = 4,
-  y = math.floor((UI.term.height - 8) / 2) + 1,
-  height = 7,
-  width = UI.term.width - 6,
+craftPage = UI.Dialog {
+  height = 7, width = UI.term.width - 6,
  backgroundColor = colors.lightGray,
-  titleBar = UI.TitleBar({
+  titleBar = UI.TitleBar {
    title = 'Learn Recipe',
    previousPage = true,
-  }),
-  idField = UI.Text({
+  },
+  idField = UI.Text {
    x = 5,
    y = 3,
    width = UI.term.width - 10,
    value = 'Place recipe in turtle'
-  }),
-  form = UI.Form({
-    fields = {
-      --[[
-      { label = 'Ignore Damage', key = 'ignore_dmg', width = 7, display = UI.Form.D.chooser,
-        nochoice = 'No',
-        choices = {
-          { name = 'Yes', value = 'yes' },
-          { name = 'No', value = 'no' },
-        },
-        help = 'Ignore damage of ingredients' },
-      --]]
-      { text = 'Accept', event = 'accept', display = UI.Form.D.button,
-          x = 1, y = 1, width = 10 },
-      { text = 'Cancel', event = 'cancel', display = UI.Form.D.button,
-          x = 16, y = 1, width = 10 },
-    },
-    labelWidth = 13,
-    x = 5,
-    y = 5,
-    height = 2
-  }),
-  statusBar = UI.StatusBar({
+  },
+  accept = UI.Button {
+    rx = -13, ry = -2,
+    text = 'Ok', event = 'accept',
+  },
+  cancel = UI.Button {
+    rx = -8, ry = -2,
+    text = 'Cancel', event = 'cancel'
+  },
+  statusBar = UI.StatusBar {
    status = 'Crafting paused'
-  })
-})
+  }
+}

 function craftPage:enable()
  craftingPaused = true
  self:focusFirst()
-  UI.Page.enable(self)
+  UI.Dialog.enable(self)
 end

 function craftPage:disable()
  craftingPaused = false
+  UI.Dialog.disable(self)
 end
 
 function craftPage:eventHandler(event)
  if event.type == 'cancel' then
    UI:setPreviousPage()
  elseif event.type == 'accept' then
-    local values = self.form.values
-
-    if learnRecipe(self, values.ignore_dmg) then
+    if learnRecipe(self) then
      UI:setPreviousPage()
    end
  else
-    return UI.Page.eventHandler(self, event)
+    return UI.Dialog.eventHandler(self, event)
  end
  return true
 end
--- a/autorun/gps.lua
+++ b/autorun/gps.lua
@ -36,6 +36,7 @@ if turtle and device.wireless_modem then

      Util.print('Setting turtle point to %d %d %d', pt.x, pt.y, pt.z)
      turtle.setPoint(pt)
+      turtle.getState().coordSystem = 'GPS'

      if not turtle.pathfind(homePt) then
        error('Failed to return home')
--- a/sys/apis/event.lua
+++ b/sys/apis/event.lua
@ -1,4 +1,5 @@
 local Util = require('util')
+local Process = require('process')

 local Event = {
  uid = 1,  -- unique id for handlers
@ -120,13 +121,9 @@ end
 local exitPullEvents = false

 local function _pullEvents()
-
-  --exitPullEvents = false
  while true do
-    local e = Event.pullEvent()
-    if exitPullEvents or e == 'terminate' then
-      break
-    end
+    local e = { os.pullEvent() }
+    Event.processEvent(e)
  end
 end

@ -137,12 +134,23 @@ function Event.sleep(t)
  until event == 'timer' and id == timerId
 end

+function Event.addThread(fn)
+  return Process:addThread(fn)
+end
+
 function Event.pullEvents(...)
+  Process:addThread(_pullEvents)
  local routines = { ... }
  if #routines > 0 then
-    parallel.waitForAny(_pullEvents, ...)
-  else
-    _pullEvents()
+    for _, routine in ipairs(routines) do
+      Process:addThread(routine)
+    end
+  end
+  while true do
+    local e = Process:pullEvent()
+    if exitPullEvents or e == 'terminate' then
+      break
+    end
  end
 end

--- a/sys/apis/fileui.lua
+++ b/sys/apis/fileui.lua
@ -1,6 +1,6 @@
 local UI = require('ui')

-return function()
+return function(args)

  local columns = {
    { heading = 'Name', key = 'name', width = UI.term.width - 9 },
@ -13,18 +13,19 @@ return function()
    )
  end

-  local selectFile = UI.Page({
-    x  =  3,
-    y  =  2,
-    rex = -3,
-    rey = -3,
+  args = args or { }
+
+  local selectFile = UI.Dialog {
+    x = args.x or 3,
+    y = args.y or 2,
+    z = args.z or 2,
+--    rex = args.rex or -3,
+--    rey = args.rey or -3,
+    height = args.height,
+    width = args.width,
    backgroundColor = colors.brown,
-    titleBar = UI.TitleBar({
-      title = 'Select file',
-      previousPage = true,
-      event = 'cancel',
-    }),
-    grid = UI.ScrollingGrid({
+    title = 'Select file',
+    grid = UI.ScrollingGrid {
      x  =  2,
      y  =  2,
      rex = -2,
@ -32,8 +33,8 @@ return function()
      path = '',
      sortColumn = 'name',
      columns = columns,
-    }),
-    path = UI.TextEntry({
+    },
+    path = UI.TextEntry {
      x  =  2,
      ry = -1,
      rex = -11,
@ -41,14 +42,14 @@ return function()
      accelerators = {
        enter = 'path_enter',
      }
-    }),
-    cancel = UI.Button({
+    },
+    cancel = UI.Button {
      text = 'Cancel',
      rx = -8,
      ry = -1,
      event = 'cancel',
-    }),
-  })
+    },
+  }

  function selectFile:enable(path, fn)
    self:setPath(path)
--- a/sys/apis/fs/urlfs.lua
+++ b/sys/apis/fs/urlfs.lua
@ -46,13 +46,13 @@ function urlfs.open(node, fn, fl)
    synchronized(node.url, function()
      c = Util.download(node.url)
    end)
-    if c and #c > 0 then
+    if c then
      node.cache = c
      node.size = #c
    end
  end

-  if not c or #c == 0 then
+  if not c then
    return
  end

--- a/sys/apis/injector.lua
+++ b/sys/apis/injector.lua
@ -1,68 +1,164 @@
-local resolver, loader
+local DEFAULT_UPATH = 'https://raw.githubusercontent.com/kepler155c/opus/master/sys/apis'
+local PASTEBIN_URL  = 'http://pastebin.com/raw'
+local GIT_URL       = 'https://raw.githubusercontent.com'

-local function resolveFile(filename, dir, lua_path)
-
-  if filename:sub(1, 1) == "/" then
-    if not fs.exists(filename) then
-      error('Unable to load: ' .. filename, 2)
+local function standardSearcher(modname, env, shell)
+  if package.loaded[modname] then
+    return function()
+      return package.loaded[modname]
    end
-    return filename
  end
+end

-  if dir then
-    local path = fs.combine(dir, filename)
+local function shellSearcher(modname, env, shell)
+  local fname = modname:gsub('%.', '/') .. '.lua'
+
+  if shell and type(shell.dir) == 'function' then
+    local path = shell.resolve(fname)
    if fs.exists(path) and not fs.isDir(path) then
-      return path
+      return loadfile(path, env)
    end
  end
+end

-  if lua_path then
-    for dir in string.gmatch(lua_path, "[^:]+") do
-      local path = fs.combine(dir, filename)
-      if fs.exists(path) and not fs.isDir(path) then
-        return path
+local function pathSearcher(modname, env, shell)
+  local fname = modname:gsub('%.', '/') .. '.lua'
+
+  for dir in string.gmatch(package.path, "[^:]+") do
+    local path = fs.combine(dir, fname)
+    if fs.exists(path) and not fs.isDir(path) then
+      return loadfile(path, env)
+    end
+  end
+end
+
+-- fix broken http get
+local syncLocks = { }
+
+local function sync(obj, fn)
+  local key = tostring(obj)
+  if syncLocks[key] then
+    local cos = tostring(coroutine.running())
+    table.insert(syncLocks[key], cos)
+    repeat
+      local _, co = os.pullEvent('sync_lock')
+    until co == cos
+  else
+    syncLocks[key] = { }
+  end
+  local s, m = pcall(fn)
+  local co = table.remove(syncLocks[key], 1)
+  if co then
+    os.queueEvent('sync_lock', co)
+  else
+    syncLocks[key] = nil
+  end
+  if not s then
+    error(m)
+  end
+end
+
+local function loadUrl(url)
+  local c
+  sync(url, function()
+    local h = http.get(url)
+    if h then
+      c = h.readAll()
+      h.close()
+    end
+  end)
+  if c and #c > 0 then
+    return c
+  end
+end
+
+-- require('BniCQPVf')
+local function pastebinSearcher(modname, env, shell)
+  if #modname == 8 and not modname:match('%W') then
+    local url = PASTEBIN_URL .. '/' .. modname
+    local c = loadUrl(url)
+    if c then
+      return load(c, modname, nil, env)
+    end
+  end
+end
+
+-- require('kepler155c.opus.master.sys.apis.util')
+local function gitSearcher(modname, env, shell)
+  local fname = modname:gsub('%.', '/') .. '.lua'
+  local _, count = fname:gsub("/", "")
+  if count >= 3 then
+    local url = GIT_URL .. '/' .. fname
+    local c = loadUrl(url)
+    if c then
+      return load(c, modname, nil, env)
+    end
+  end
+end
+
+local function urlSearcher(modname, env, shell)
+  local fname = modname:gsub('%.', '/') .. '.lua'
+
+  if fname:sub(1, 1) ~= '/' then
+    for entry in string.gmatch(package.upath, "[^;]+") do
+      local url = entry .. '/' .. fname
+      local c = loadUrl(url)
+      if c then
+        return load(c, modname, nil, env)
      end
    end
  end
-
-  error('Unable to load: ' .. filename, 2)
 end

+_G.package = {
+  path = LUA_PATH or 'sys/apis',
+  upath = LUA_UPATH or DEFAULT_UPATH,
+  config = '/\n:\n?\n!\n-',
+  loaded = {
+    math   = math,
+    string = string,
+    table  = table,
+    io     = io,
+    os     = os,
+  },
+  loaders = {
+    standardSearcher,
+    shellSearcher,
+    pathSearcher,
+    pastebinSearcher,
+    gitSearcher,
+    urlSearcher,
+  }
+}
+
 local function requireWrapper(env)

-  local modules = { }
+  local loaded = { }

-  return function(filename)
+  return function(modname)

-    local dir = DIR
-    if not dir and shell and type(shell.dir) == 'function' then
-      dir = shell.dir()
+    if loaded[modname] then
+      return loaded[modname]
    end

-    local fname = resolver(filename:gsub('%.', '/') .. '.lua',
-      dir or '', LUA_PATH or '/sys/apis')
-
-    local rname = fname:gsub('%/', '.'):gsub('%.lua', '')
-
-    local module = modules[rname]
-    if not module then
-
-      local f, err = loader(fname, env)
-      if not f then
-        error(err)
-      end 
-      module = f(rname)
-      modules[rname] = module
+    for _,searcher in ipairs(package.loaders) do
+      local fn, msg = searcher(modname, env, shell)
+      if fn then
+        local module, msg = fn(modname, env)
+        if not module then
+          error(msg)
+        end
+        loaded[modname] = module
+        return module
+      end
+      if msg then
+        error(msg, 2)
+      end
    end
-
-    return module
+    error('Unable to find module ' .. modname)
  end
 end

-local args = { ... }
-resolver = args[1] or resolveFile
-loader   = args[2] or loadfile
-
 return function(env)
  setfenv(requireWrapper, env)
  return requireWrapper(env)
--- a/sys/apis/process.lua
+++ b/sys/apis/process.lua
@ -27,6 +27,11 @@ function Process:threadEvent(...)
  end
 end

+function Process:addThread(fn, ...)
+  return self:newThread(nil, fn, ...)
+end
+
+-- deprecated
 function Process:newThread(name, fn, ...)

  self.uid = self.uid + 1
@ -45,7 +50,7 @@ function Process:newThread(name, fn, ...)
    local s, m = pcall(function() fn(unpack(args)) end)
    if not s and m then
      if m == 'Terminated' then
-        printError(thread.name .. ' terminated')
+        --printError(thread.name .. ' terminated')
      else
        printError(m)
      end
@ -82,8 +87,11 @@ function Process:resume(event, ...)
  return true, self.filter
 end

-function Process:pullEvent(filter)
+-- confusing...

+-- pull either one event if no filter or until event matches filter
+-- or until terminated (regardless of filter)
+function Process:pullEvent(filter)
  while true do
    local e = { os.pullEventRaw() }
    self:threadEvent(unpack(e))
@ -94,12 +102,12 @@ function Process:pullEvent(filter)
  end
 end

+-- pull events until either the filter is matched or terminated
 function Process:pullEvents(filter)
-
  while true do
-    local e = { os.pullEventRaw(filter) }
+    local e = { os.pullEventRaw() }
    self:threadEvent(unpack(e))
-    if e[1] == 'terminate' then
+    if (filter and e[1] == filter) or e[1] == 'terminate' then
      return unpack(e)
    end
  end
--- a/sys/apis/region.lua
+++ b/sys/apis/region.lua
@ -0,0 +1,358 @@
+-------------------------------------------------------------------------------
+--
+--	tek.lib.region
+--	Written by Timm S. Mueller <tmueller at schulze-mueller.de>
+-- 
+-- Copyright 2008 - 2016 by the authors and contributors:
+-- 
+--  * Timm S. Muller <tmueller at schulze-mueller.de>
+--  * Franciska Schulze <fschulze at schulze-mueller.de>
+--  * Tobias Schwinger <tschwinger at isonews2.com>
+-- 
+-- Permission is hereby granted, free of charge, to any person obtaining
+-- a copy of this software and associated documentation files (the
+-- "Software"), to deal in the Software without restriction, including
+-- without limitation the rights to use, copy, modify, merge, publish,
+-- distribute, sublicense, and/or sell copies of the Software, and to
+-- permit persons to whom the Software is furnished to do so, subject to
+-- the following conditions:
+-- 
+-- The above copyright notice and this permission notice shall be
+-- included in all copies or substantial portions of the Software.
+-- 
+-- === Disclaimer ===
+-- 
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+-- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+-- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+-- IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+-- CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+-- TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+-- SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+--
+--	OVERVIEW::
+--		This library implements the management of regions, which are
+--		collections of non-overlapping rectangles.
+--
+--	FUNCTIONS::
+--		- Region:andRect() - ''And''s a rectangle to a region
+--		- Region:andRegion() - ''And''s a region to a region
+--		- Region:checkIntersect() - Checks if a rectangle intersects a region
+--		- Region:forEach() - Calls a function for each rectangle in a region
+--		- Region:get() - Get region's min/max extents
+--		- Region.intersect() - Returns the intersection of two rectangles
+--		- Region:isEmpty() - Checks if a Region is empty
+--		- Region.new() - Creates a new Region
+--		- Region:orRect() - ''Or''s a rectangle to a region
+--		- Region:orRegion() - ''Or''s a region to a region
+--		- Region:setRect() - Resets a region to the given rectangle
+--		- Region:shift() - Displaces a region
+--		- Region:subRect() - Subtracts a rectangle from a region
+--		- Region:subRegion() - Subtracts a region from a region
+--		- Region:xorRect() - ''Exclusive Or''s a rectangle to a region
+--
+-------------------------------------------------------------------------------
+
+local insert = table.insert
+local ipairs = ipairs
+local max = math.max
+local min = math.min
+local setmetatable = setmetatable
+local unpack = unpack or table.unpack
+
+local Region = { }
+Region._VERSION = "Region 11.3"
+
+Region.__index = Region
+
+-------------------------------------------------------------------------------
+--	x0, y0, x1, y1 = Region.intersect(d1, d2, d3, d4, s1, s2, s3, s4):
+--	Returns the coordinates of a rectangle where a rectangle specified by
+--	the coordinates s1, s2, s3, s4 overlaps with the rectangle specified
+--	by the coordinates d1, d2, d3, d4. The return value is '''nil''' if
+--	the rectangles do not overlap.
+-------------------------------------------------------------------------------
+
+function Region.intersect(d1, d2, d3, d4, s1, s2, s3, s4)
+	if s3 >= d1 and s1 <= d3 and s4 >= d2 and s2 <= d4 then
+		return max(s1, d1), max(s2, d2), min(s3, d3), min(s4, d4)
+	end
+end
+
+-------------------------------------------------------------------------------
+--	insertrect: insert rect to table, merging with an existing one if possible
+-------------------------------------------------------------------------------
+
+local function insertrect(d, s1, s2, s3, s4)
+	for i = 1, min(4, #d) do
+		local a = d[i]
+		local a1, a2, a3, a4 = a[1], a[2], a[3], a[4]
+		if a2 == s2 and a4 == s4 then
+			if a3 + 1 == s1 then
+				a[3] = s3
+				return
+			elseif a1 == s3 + 1 then
+				a[1] = s1
+				return
+			end
+		elseif a1 == s1 and a3 == s3 then
+			if a4 + 1 == s2 then
+				a[4] = s4
+				return
+			elseif a2 == s4 + 1 then
+				a[2] = s2
+				return
+			end
+		end
+	end
+	insert(d, 1, { s1, s2, s3, s4 })
+end
+
+-------------------------------------------------------------------------------
+--	cutrect: cut rect d into table of new rects, using rect s as a punch
+-------------------------------------------------------------------------------
+
+local function cutrect(d1, d2, d3, d4, s1, s2, s3, s4)
+	if not Region.intersect(d1, d2, d3, d4, s1, s2, s3, s4) then
+		return { { d1, d2, d3, d4 } }
+	end
+	local r = { }
+	if d1 < s1 then
+		insertrect(r, d1, d2, s1 - 1, d4)
+		d1 = s1
+	end
+	if d2 < s2 then
+		insertrect(r, d1, d2, d3, s2 - 1)
+		d2 = s2
+	end
+	if d3 > s3 then
+		insertrect(r, s3 + 1, d2, d3, d4)
+		d3 = s3
+	end
+	if d4 > s4 then
+		insertrect(r, d1, s4 + 1, d3, d4)
+	end
+	return r
+end
+
+-------------------------------------------------------------------------------
+--	cutregion: cut region d, using s as a punch
+-------------------------------------------------------------------------------
+
+local function cutregion(d, s1, s2, s3, s4)
+	local r = { }
+	for _, dr in ipairs(d) do
+		local d1, d2, d3, d4 = dr[1], dr[2], dr[3], dr[4]
+		for _, t in ipairs(cutrect(d1, d2, d3, d4, s1, s2, s3, s4)) do
+			insertrect(r, t[1], t[2], t[3], t[4])
+		end
+	end
+	return r
+end
+
+-------------------------------------------------------------------------------
+--	region = Region.new(r1, r2, r3, r4): Creates a new region from the given
+--	coordinates.
+-------------------------------------------------------------------------------
+
+function Region.new(r1, r2, r3, r4)
+	if r1 then
+		return setmetatable({ region = { { r1, r2, r3, r4 } } }, Region)
+	end
+	return setmetatable({ region = { } }, Region)
+end
+
+-------------------------------------------------------------------------------
+--	self = region:setRect(r1, r2, r3, r4): Resets an existing region
+--	to the specified rectangle.
+-------------------------------------------------------------------------------
+
+function Region:setRect(r1, r2, r3, r4)
+	self.region = { { r1, r2, r3, r4 } }
+	return self
+end
+
+-------------------------------------------------------------------------------
+--	region:orRect(r1, r2, r3, r4): Logical ''or''s a rectangle to a region
+-------------------------------------------------------------------------------
+
+function Region:orRect(s1, s2, s3, s4)
+	self.region = cutregion(self.region, s1, s2, s3, s4)
+	insertrect(self.region, s1, s2, s3, s4)
+end
+
+-------------------------------------------------------------------------------
+--	region:orRegion(region): Logical ''or''s another region to a region
+-------------------------------------------------------------------------------
+
+function Region:orRegion(s)
+	for _, r in ipairs(s) do
+		self:orRect(r[1], r[2], r[3], r[4])
+	end
+end
+
+-------------------------------------------------------------------------------
+--	region:andRect(r1, r2, r3, r4): Logical ''and''s a rectange to a region
+-------------------------------------------------------------------------------
+
+function Region:andRect(s1, s2, s3, s4)
+	local r = { }
+	for _, d in ipairs(self.region) do
+		local t1, t2, t3, t4 =
+			Region.intersect(d[1], d[2], d[3], d[4], s1, s2, s3, s4)
+		if t1 then
+			insertrect(r, t1, t2, t3, t4)
+		end
+	end
+	self.region = r
+end
+
+-------------------------------------------------------------------------------
+--	region:xorRect(r1, r2, r3, r4): Logical ''xor''s a rectange to a region
+-------------------------------------------------------------------------------
+
+function Region:xorRect(s1, s2, s3, s4)
+	local r1 = { }
+	local r2 = { { s1, s2, s3, s4 } }
+	for _, d in ipairs(self.region) do
+		local d1, d2, d3, d4 = d[1], d[2], d[3], d[4]
+		for _, t in ipairs(cutrect(d1, d2, d3, d4, s1, s2, s3, s4)) do
+			insertrect(r1, t[1], t[2], t[3], t[4])
+		end
+		r2 = cutregion(r2, d1, d2, d3, d4)
+	end
+	self.region = r1
+	self:orRegion(r2)
+end
+
+-------------------------------------------------------------------------------
+--	self = region:subRect(r1, r2, r3, r4): Subtracts a rectangle from a region
+-------------------------------------------------------------------------------
+
+function Region:subRect(s1, s2, s3, s4)
+	local r1 = { }
+	for _, d in ipairs(self.region) do
+		local d1, d2, d3, d4 = d[1], d[2], d[3], d[4]
+		for _, t in ipairs(cutrect(d1, d2, d3, d4, s1, s2, s3, s4)) do
+			insertrect(r1, t[1], t[2], t[3], t[4])
+		end
+	end
+	self.region = r1
+	return self
+end
+
+-------------------------------------------------------------------------------
+--	region:getRect - gets an iterator on the rectangles in a region [internal]
+-------------------------------------------------------------------------------
+
+function Region:getRects()
+	local index = 0
+	return function(object)
+		index = index + 1
+		if object[index] then
+			return unpack(object[index])
+		end
+	end, self.region
+end
+
+-------------------------------------------------------------------------------
+--	success = region:checkIntersect(x0, y0, x1, y1): Returns a boolean
+--	indicating whether a rectangle specified by its coordinates overlaps
+--	with a region.
+-------------------------------------------------------------------------------
+
+function Region:checkIntersect(s1, s2, s3, s4)
+	for _, d in ipairs(self.region) do
+		if Region.intersect(d[1], d[2], d[3], d[4], s1, s2, s3, s4) then
+			return true
+		end
+	end
+	return false
+end
+
+-------------------------------------------------------------------------------
+--	region:subRegion(region2): Subtracts {{region2}} from {{region}}.
+-------------------------------------------------------------------------------
+
+function Region:subRegion(region)
+	if region then
+		for r1, r2, r3, r4 in region:getRects() do
+			self:subRect(r1, r2, r3, r4)
+		end
+	end
+end
+
+-------------------------------------------------------------------------------
+--	region:andRegion(r): Logically ''and''s a region to a region
+-------------------------------------------------------------------------------
+
+function Region:andRegion(s)
+	local r = { }
+	for _, s in ipairs(s.region) do
+		for _, d in ipairs(self.region) do
+			local t1, t2, t3, t4 =
+				Region.intersect(d[1], d[2], d[3], d[4],
+					s[1], s[2], s[3], s[4])
+			if t1 then
+				insertrect(r, t1, t2, t3, t4)
+			end
+		end
+	end
+	self.region = r
+end
+
+-------------------------------------------------------------------------------
+--	region:forEach(func, obj, ...): For each rectangle in a region, calls the
+--	specified function according the following scheme:
+--			func(obj, x0, y0, x1, y1, ...)
+--	Extra arguments are passed through to the function.
+-------------------------------------------------------------------------------
+
+function Region:forEach(func, obj, ...)
+	for x0, y0, x1, y1 in self:getRects() do
+		func(obj, x0, y0, x1, y1, ...) 
+	end
+end
+
+-------------------------------------------------------------------------------
+--	region:shift(dx, dy): Shifts a region by delta x and y.
+-------------------------------------------------------------------------------
+
+function Region:shift(dx, dy)
+	for _, r in ipairs(self.region) do
+		r[1] = r[1] + dx
+		r[2] = r[2] + dy
+		r[3] = r[3] + dx
+		r[4] = r[4] + dy
+	end
+end
+
+-------------------------------------------------------------------------------
+--	region:isEmpty(): Returns '''true''' if a region is empty.
+-------------------------------------------------------------------------------
+
+function Region:isEmpty()
+	return #self.region == 0
+end
+
+-------------------------------------------------------------------------------
+--	minx, miny, maxx, maxy = region:get(): Get region's min/max extents
+-------------------------------------------------------------------------------
+
+function Region:get()
+	if #self.region > 0 then
+		local minx = 1000000 -- ui.HUGE
+		local miny = 1000000
+		local maxx = 0
+		local maxy = 0
+		for _, r in ipairs(self.region) do
+			minx = min(minx, r[1])
+			miny = min(miny, r[2])
+			maxx = max(maxx, r[3])
+			maxy = max(maxy, r[4])
+		end
+		return minx, miny, maxx, maxy
+	end
+end
+
+return Region
--- a/sys/apis/terminal.lua
+++ b/sys/apis/terminal.lua
@ -120,6 +120,18 @@ function Terminal.toGrayscale(ct)
  end
 end

+function Terminal.getNullTerm(ct)
+  local nt = Terminal.copy(ct)
+
+  local methods = { 'blit', 'clear', 'clearLine', 'scroll',
+                    'setCursorBlink', 'setCursorPos', 'write' }
+  for _,v in pairs(methods) do
+    nt[v] = function() end
+  end
+
+  return nt
+end
+
 function Terminal.copy(ot)
  local ct = { }
  for k,v in pairs(ot) do
--- a/sys/apis/tween.lua
+++ b/sys/apis/tween.lua
@ -0,0 +1,367 @@
+local tween = {
+  _VERSION     = 'tween 2.1.1',
+  _DESCRIPTION = 'tweening for lua',
+  _URL         = 'https://github.com/kikito/tween.lua',
+  _LICENSE     = [[
+    MIT LICENSE
+
+    Copyright (c) 2014 Enrique García Cota, Yuichi Tateno, Emmanuel Oga
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the
+    "Software"), to deal in the Software without restriction, including
+    without limitation the rights to use, copy, modify, merge, publish,
+    distribute, sublicense, and/or sell copies of the Software, and to
+    permit persons to whom the Software is furnished to do so, subject to
+    the following conditions:
+
+    The above copyright notice and this permission notice shall be included
+    in all copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+    CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+    TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+    SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+  ]]
+}
+
+-- easing
+
+-- Adapted from https://github.com/EmmanuelOga/easing. See LICENSE.txt for credits.
+-- For all easing functions:
+-- t = time == how much time has to pass for the tweening to complete
+-- b = begin == starting property value
+-- c = change == ending - beginning
+-- d = duration == running time. How much time has passed *right now*
+
+local pow, sin, cos, pi, sqrt, abs, asin = math.pow, math.sin, math.cos, math.pi, math.sqrt, math.abs, math.asin
+
+-- linear
+local function linear(t, b, c, d) return c * t / d + b end
+
+-- quad
+local function inQuad(t, b, c, d) return c * pow(t / d, 2) + b end
+local function outQuad(t, b, c, d)
+  t = t / d
+  return -c * t * (t - 2) + b
+end
+local function inOutQuad(t, b, c, d)
+  t = t / d * 2
+  if t < 1 then return c / 2 * pow(t, 2) + b end
+  return -c / 2 * ((t - 1) * (t - 3) - 1) + b
+end
+local function outInQuad(t, b, c, d)
+  if t < d / 2 then return outQuad(t * 2, b, c / 2, d) end
+  return inQuad((t * 2) - d, b + c / 2, c / 2, d)
+end
+
+-- cubic
+local function inCubic (t, b, c, d) return c * pow(t / d, 3) + b end
+local function outCubic(t, b, c, d) return c * (pow(t / d - 1, 3) + 1) + b end
+local function inOutCubic(t, b, c, d)
+  t = t / d * 2
+  if t < 1 then return c / 2 * t * t * t + b end
+  t = t - 2
+  return c / 2 * (t * t * t + 2) + b
+end
+local function outInCubic(t, b, c, d)
+  if t < d / 2 then return outCubic(t * 2, b, c / 2, d) end
+  return inCubic((t * 2) - d, b + c / 2, c / 2, d)
+end
+
+-- quart
+local function inQuart(t, b, c, d) return c * pow(t / d, 4) + b end
+local function outQuart(t, b, c, d) return -c * (pow(t / d - 1, 4) - 1) + b end
+local function inOutQuart(t, b, c, d)
+  t = t / d * 2
+  if t < 1 then return c / 2 * pow(t, 4) + b end
+  return -c / 2 * (pow(t - 2, 4) - 2) + b
+end
+local function outInQuart(t, b, c, d)
+  if t < d / 2 then return outQuart(t * 2, b, c / 2, d) end
+  return inQuart((t * 2) - d, b + c / 2, c / 2, d)
+end
+
+-- quint
+local function inQuint(t, b, c, d) return c * pow(t / d, 5) + b end
+local function outQuint(t, b, c, d) return c * (pow(t / d - 1, 5) + 1) + b end
+local function inOutQuint(t, b, c, d)
+  t = t / d * 2
+  if t < 1 then return c / 2 * pow(t, 5) + b end
+  return c / 2 * (pow(t - 2, 5) + 2) + b
+end
+local function outInQuint(t, b, c, d)
+  if t < d / 2 then return outQuint(t * 2, b, c / 2, d) end
+  return inQuint((t * 2) - d, b + c / 2, c / 2, d)
+end
+
+-- sine
+local function inSine(t, b, c, d) return -c * cos(t / d * (pi / 2)) + c + b end
+local function outSine(t, b, c, d) return c * sin(t / d * (pi / 2)) + b end
+local function inOutSine(t, b, c, d) return -c / 2 * (cos(pi * t / d) - 1) + b end
+local function outInSine(t, b, c, d)
+  if t < d / 2 then return outSine(t * 2, b, c / 2, d) end
+  return inSine((t * 2) -d, b + c / 2, c / 2, d)
+end
+
+-- expo
+local function inExpo(t, b, c, d)
+  if t == 0 then return b end
+  return c * pow(2, 10 * (t / d - 1)) + b - c * 0.001
+end
+local function outExpo(t, b, c, d)
+  if t == d then return b + c end
+  return c * 1.001 * (-pow(2, -10 * t / d) + 1) + b
+end
+local function inOutExpo(t, b, c, d)
+  if t == 0 then return b end
+  if t == d then return b + c end
+  t = t / d * 2
+  if t < 1 then return c / 2 * pow(2, 10 * (t - 1)) + b - c * 0.0005 end
+  return c / 2 * 1.0005 * (-pow(2, -10 * (t - 1)) + 2) + b
+end
+local function outInExpo(t, b, c, d)
+  if t < d / 2 then return outExpo(t * 2, b, c / 2, d) end
+  return inExpo((t * 2) - d, b + c / 2, c / 2, d)
+end
+
+-- circ
+local function inCirc(t, b, c, d) return(-c * (sqrt(1 - pow(t / d, 2)) - 1) + b) end
+local function outCirc(t, b, c, d)  return(c * sqrt(1 - pow(t / d - 1, 2)) + b) end
+local function inOutCirc(t, b, c, d)
+  t = t / d * 2
+  if t < 1 then return -c / 2 * (sqrt(1 - t * t) - 1) + b end
+  t = t - 2
+  return c / 2 * (sqrt(1 - t * t) + 1) + b
+end
+local function outInCirc(t, b, c, d)
+  if t < d / 2 then return outCirc(t * 2, b, c / 2, d) end
+  return inCirc((t * 2) - d, b + c / 2, c / 2, d)
+end
+
+-- elastic
+local function calculatePAS(p,a,c,d)
+  p, a = p or d * 0.3, a or 0
+  if a < abs(c) then return p, c, p / 4 end -- p, a, s
+  return p, a, p / (2 * pi) * asin(c/a) -- p,a,s
+end
+local function inElastic(t, b, c, d, a, p)
+  local s
+  if t == 0 then return b end
+  t = t / d
+  if t == 1  then return b + c end
+  p,a,s = calculatePAS(p,a,c,d)
+  t = t - 1
+  return -(a * pow(2, 10 * t) * sin((t * d - s) * (2 * pi) / p)) + b
+end
+local function outElastic(t, b, c, d, a, p)
+  local s
+  if t == 0 then return b end
+  t = t / d
+  if t == 1 then return b + c end
+  p,a,s = calculatePAS(p,a,c,d)
+  return a * pow(2, -10 * t) * sin((t * d - s) * (2 * pi) / p) + c + b
+end
+local function inOutElastic(t, b, c, d, a, p)
+  local s
+  if t == 0 then return b end
+  t = t / d * 2
+  if t == 2 then return b + c end
+  p,a,s = calculatePAS(p,a,c,d)
+  t = t - 1
+  if t < 0 then return -0.5 * (a * pow(2, 10 * t) * sin((t * d - s) * (2 * pi) / p)) + b end
+  return a * pow(2, -10 * t) * sin((t * d - s) * (2 * pi) / p ) * 0.5 + c + b
+end
+local function outInElastic(t, b, c, d, a, p)
+  if t < d / 2 then return outElastic(t * 2, b, c / 2, d, a, p) end
+  return inElastic((t * 2) - d, b + c / 2, c / 2, d, a, p)
+end
+
+-- back
+local function inBack(t, b, c, d, s)
+  s = s or 1.70158
+  t = t / d
+  return c * t * t * ((s + 1) * t - s) + b
+end
+local function outBack(t, b, c, d, s)
+  s = s or 1.70158
+  t = t / d - 1
+  return c * (t * t * ((s + 1) * t + s) + 1) + b
+end
+local function inOutBack(t, b, c, d, s)
+  s = (s or 1.70158) * 1.525
+  t = t / d * 2
+  if t < 1 then return c / 2 * (t * t * ((s + 1) * t - s)) + b end
+  t = t - 2
+  return c / 2 * (t * t * ((s + 1) * t + s) + 2) + b
+end
+local function outInBack(t, b, c, d, s)
+  if t < d / 2 then return outBack(t * 2, b, c / 2, d, s) end
+  return inBack((t * 2) - d, b + c / 2, c / 2, d, s)
+end
+
+-- bounce
+local function outBounce(t, b, c, d)
+  t = t / d
+  if t < 1 / 2.75 then return c * (7.5625 * t * t) + b end
+  if t < 2 / 2.75 then
+    t = t - (1.5 / 2.75)
+    return c * (7.5625 * t * t + 0.75) + b
+  elseif t < 2.5 / 2.75 then
+    t = t - (2.25 / 2.75)
+    return c * (7.5625 * t * t + 0.9375) + b
+  end
+  t = t - (2.625 / 2.75)
+  return c * (7.5625 * t * t + 0.984375) + b
+end
+local function inBounce(t, b, c, d) return c - outBounce(d - t, 0, c, d) + b end
+local function inOutBounce(t, b, c, d)
+  if t < d / 2 then return inBounce(t * 2, 0, c, d) * 0.5 + b end
+  return outBounce(t * 2 - d, 0, c, d) * 0.5 + c * .5 + b
+end
+local function outInBounce(t, b, c, d)
+  if t < d / 2 then return outBounce(t * 2, b, c / 2, d) end
+  return inBounce((t * 2) - d, b + c / 2, c / 2, d)
+end
+
+tween.easing = {
+  linear    = linear,
+  inQuad    = inQuad,    outQuad    = outQuad,    inOutQuad    = inOutQuad,    outInQuad    = outInQuad,
+  inCubic   = inCubic,   outCubic   = outCubic,   inOutCubic   = inOutCubic,   outInCubic   = outInCubic,
+  inQuart   = inQuart,   outQuart   = outQuart,   inOutQuart   = inOutQuart,   outInQuart   = outInQuart,
+  inQuint   = inQuint,   outQuint   = outQuint,   inOutQuint   = inOutQuint,   outInQuint   = outInQuint,
+  inSine    = inSine,    outSine    = outSine,    inOutSine    = inOutSine,    outInSine    = outInSine,
+  inExpo    = inExpo,    outExpo    = outExpo,    inOutExpo    = inOutExpo,    outInExpo    = outInExpo,
+  inCirc    = inCirc,    outCirc    = outCirc,    inOutCirc    = inOutCirc,    outInCirc    = outInCirc,
+  inElastic = inElastic, outElastic = outElastic, inOutElastic = inOutElastic, outInElastic = outInElastic,
+  inBack    = inBack,    outBack    = outBack,    inOutBack    = inOutBack,    outInBack    = outInBack,
+  inBounce  = inBounce,  outBounce  = outBounce,  inOutBounce  = inOutBounce,  outInBounce  = outInBounce
+}
+
+
+
+-- private stuff
+
+local function copyTables(destination, keysTable, valuesTable)
+  valuesTable = valuesTable or keysTable
+  local mt = getmetatable(keysTable)
+  if mt and getmetatable(destination) == nil then
+    setmetatable(destination, mt)
+  end
+  for k,v in pairs(keysTable) do
+    if type(v) == 'table' then
+      destination[k] = copyTables({}, v, valuesTable[k])
+    else
+      destination[k] = valuesTable[k]
+    end
+  end
+  return destination
+end
+
+local function checkSubjectAndTargetRecursively(subject, target, path)
+  path = path or {}
+  local targetType, newPath
+  for k,targetValue in pairs(target) do
+    targetType, newPath = type(targetValue), copyTables({}, path)
+    table.insert(newPath, tostring(k))
+    if targetType == 'number' then
+      assert(type(subject[k]) == 'number', "Parameter '" .. table.concat(newPath,'/') .. "' is missing from subject or isn't a number")
+    elseif targetType == 'table' then
+      checkSubjectAndTargetRecursively(subject[k], targetValue, newPath)
+    else
+      assert(targetType == 'number', "Parameter '" .. table.concat(newPath,'/') .. "' must be a number or table of numbers")
+    end
+  end
+end
+
+local function checkNewParams(duration, subject, target, easing)
+  assert(type(duration) == 'number' and duration > 0, "duration must be a positive number. Was " .. tostring(duration))
+  local tsubject = type(subject)
+  assert(tsubject == 'table' or tsubject == 'userdata', "subject must be a table or userdata. Was " .. tostring(subject))
+  assert(type(target)== 'table', "target must be a table. Was " .. tostring(target))
+  assert(type(easing)=='function', "easing must be a function. Was " .. tostring(easing))
+  checkSubjectAndTargetRecursively(subject, target)
+end
+
+local function getEasingFunction(easing)
+  easing = easing or "linear"
+  if type(easing) == 'string' then
+    local name = easing
+    easing = tween.easing[name]
+    if type(easing) ~= 'function' then
+      error("The easing function name '" .. name .. "' is invalid")
+    end
+  end
+  return easing
+end
+
+local function performEasingOnSubject(subject, target, initial, clock, duration, easing)
+  local t,b,c,d
+  for k,v in pairs(target) do
+    if type(v) == 'table' then
+      performEasingOnSubject(subject[k], v, initial[k], clock, duration, easing)
+    else
+      t,b,c,d = clock, initial[k], v - initial[k], duration
+      subject[k] = easing(t,b,c,d)
+    end
+  end
+end
+
+-- Tween methods
+
+local Tween = {}
+local Tween_mt = {__index = Tween}
+
+function Tween:set(clock)
+  assert(type(clock) == 'number', "clock must be a positive number or 0")
+
+  self.initial = self.initial or copyTables({}, self.target, self.subject)
+  self.clock = clock
+
+  if self.clock <= 0 then
+
+    self.clock = 0
+    copyTables(self.subject, self.initial)
+
+  elseif self.clock >= self.duration then -- the tween has expired
+
+    self.clock = self.duration
+    copyTables(self.subject, self.target)
+
+  else
+
+    performEasingOnSubject(self.subject, self.target, self.initial, self.clock, self.duration, self.easing)
+
+  end
+
+  return self.clock >= self.duration
+end
+
+function Tween:reset()
+  return self:set(0)
+end
+
+function Tween:update(dt)
+  assert(type(dt) == 'number', "dt must be a number")
+  return self:set(self.clock + dt)
+end
+
+
+-- Public interface
+
+function tween.new(duration, subject, target, easing)
+  easing = getEasingFunction(easing)
+  checkNewParams(duration, subject, target, easing)
+  return setmetatable({
+    duration  = duration,
+    subject   = subject,
+    target    = target,
+    easing    = easing,
+    clock     = 0
+  }, Tween_mt)
+end
+
+return tween
--- a/sys/apis/ui.lua
+++ b/sys/apis/ui.lua
--- a/sys/apis/util.lua
+++ b/sys/apis/util.lua
@ -365,6 +365,10 @@ function Util.toBytes(n)
  return tostring(n)
 end

+function Util.insertString(os, is, pos)
+  return os:sub(1, pos - 1) .. is .. os:sub(pos)
+end
+
 function Util.split(str, pattern)
  pattern = pattern or "(.-)\n"
  local t = {}
@ -457,28 +461,30 @@ end
 local function getopt( arg, options )
  local tab = {}
  for k, v in ipairs(arg) do
-    if string.sub( v, 1, 2) == "--" then
-      local x = string.find( v, "=", 1, true )
-      if x then tab[ string.sub( v, 3, x-1 ) ] = string.sub( v, x+1 )
-      else      tab[ string.sub( v, 3 ) ] = true
-      end
-    elseif string.sub( v, 1, 1 ) == "-" then
-      local y = 2
-      local l = string.len(v)
-      local jopt
-      while ( y <= l ) do
-        jopt = string.sub( v, y, y )
-        if string.find( options, jopt, 1, true ) then
-          if y < l then
-            tab[ jopt ] = string.sub( v, y+1 )
-            y = l
-          else
-            tab[ jopt ] = arg[ k + 1 ]
-          end
-        else
-          tab[ jopt ] = true
+    if type(v) == 'string' then
+      if string.sub( v, 1, 2) == "--" then
+        local x = string.find( v, "=", 1, true )
+        if x then tab[ string.sub( v, 3, x-1 ) ] = string.sub( v, x+1 )
+        else      tab[ string.sub( v, 3 ) ] = true
+        end
+      elseif string.sub( v, 1, 1 ) == "-" then
+        local y = 2
+        local l = string.len(v)
+        local jopt
+        while ( y <= l ) do
+          jopt = string.sub( v, y, y )
+          if string.find( options, jopt, 1, true ) then
+            if y < l then
+              tab[ jopt ] = string.sub( v, y+1 )
+              y = l
+            else
+              tab[ jopt ] = arg[ k + 1 ]
+            end
+          else
+            tab[ jopt ] = true
+          end
+          y = y + 1
        end
-        y = y + 1
      end
    end
  end
--- a/sys/boot/multishell.boot
+++ b/sys/boot/multishell.boot
@ -4,8 +4,8 @@ LUA_PATH = '/sys/apis'

 math.randomseed(os.clock())

-_G.debug = function() end
 _G.Util = dofile('/sys/apis/util.lua')
+_G.debug = function(...) Util.print(...) end
 _G.requireInjector = dofile('/sys/apis/injector.lua')

 os.run(Util.shallowCopy(getfenv(1)), '/sys/extensions/device.lua')
@ -21,6 +21,7 @@ local mounts = Util.readFile('config/fstab')
 if mounts then
  for _,l in ipairs(Util.split(mounts)) do
    if l:sub(1, 1) ~= '#' then
+      print('mounting ' .. l)
      fs.mount(unpack(Util.matches(l)))
    end
  end
--- a/sys/extensions/scheduler.lua
+++ b/sys/extensions/scheduler.lua
@ -57,10 +57,12 @@ function turtle.run(fn, ...)
    local e, id, abort = os.pullEventRaw('turtle_ticket')
    if e == 'terminate' then
      releaseTicket(ticketId)
+      os.queueEvent('turtle_response')
      error('Terminated')
    end
    if abort then
      -- the function was queued, but the queue was cleared
+      os.queueEvent('turtle_response')
      return false, 'aborted'
    end
    if id == ticketId then
@ -72,6 +74,7 @@ function turtle.run(fn, ...)
      if not s and m then
        printError(m)
      end
+      os.queueEvent('turtle_response')
      return s, m
    end
  end
--- a/sys/extensions/tl3.lua
+++ b/sys/extensions/tl3.lua
@ -17,6 +17,7 @@ local state = {
  moveDig = noop,
  moveCallback = noop,
  locations = {},
+  coordSystem = 'relative', -- type of coordinate system being used
 }

 function turtle.getState()
@ -44,6 +45,7 @@ function turtle.reset()
  state.moveDig = noop
  state.moveCallback = noop
  state.locations = {}
+  state.coordSystem = 'relative'

  return true
 end
@ -231,7 +233,6 @@ turtle.digPolicies = {
    if not turtle.isTurtleAtSide(action.side) then
      return action.dig()
    end
-
    return Util.tryTimes(6, function()
 --      if not turtle.isTurtleAtSide(action.side) then
 --        return true --action.dig()
--- a/sys/network/snmp.lua
+++ b/sys/network/snmp.lua
@ -117,15 +117,19 @@ process:newThread('discovery_server', function()
  end
 end)

+local info = {
+  id = os.getComputerID()
+}
+
 local function sendInfo()
-  local info = {
-    id = os.getComputerID(),
-    label = os.getComputerLabel(),
-    uptime = math.floor(os.clock()),
-  }
+  info.label = os.getComputerLabel()
+  info.uptime = math.floor(os.clock())
  if turtle then
    info.fuel = turtle.getFuelLevel()
    info.status = turtle.status
+    info.point = turtle.point
+    info.inventory = turtle.getInventory()
+    info.coordSystem = turtle.getState().coordSystem
  end
  device.wireless_modem.transmit(999, os.getComputerID(), info)
 end
@ -152,13 +156,11 @@ end)
 if os.isTurtle() then
  process:newThread('turtle_heartbeat', function()

-    local lastUpdate = os.clock()
    os.sleep(1)
-
    while true do
      os.pullEvent('turtle_response')
-      if os.clock() - lastUpdate >= 1 then
-        lastUpdate = os.clock()
+      if turtle.status ~= info.status or
+         turtle.fuel ~= info.fuel then
        sendInfo()
      end
    end