cleanup

apps/music.lua

@@ -0,0 +1,261 @@
+require = requireInjector(getfenv(1))
+
+local Event = require('event')
+local UI    = require('ui')
+
+multishell.setTitle(multishell.getCurrent(), 'Music')
+
+local radio = device.drive or error('No drive attached')
+if radio.side ~= 'top' and radio.side ~= 'bottom' then
+  error('Disk drive must be above or below turtle')
+end
+
+if not turtle then
+  error('This program can only be run on a turtle')
+end
+
+if not device.monitor then
+  error('Monitor must be attached (3 wide x 1 tall')
+end
+
+local monitor = UI.Device({
+  deviceType = 'monitor',
+  textScale = 0.5,
+})
+
+UI:setDefaultDevice(monitor)
+
+local page = UI.Page({
+  volume = 15,
+  stationName = UI.Text({
+    y = 2,
+    x = 2,
+    width = monitor.width - 14,
+    height = 3,
+    backgroundColor = colors.brown,
+  }),
+  seek = UI.Button({
+    y = 7,
+    x = 13,
+    height = 3,
+    event = 'seek',
+    text = '  >>  ',
+  }),
+  play = UI.Button({
+    y = 7,
+    x = 2,
+    height = 3,
+    event = 'play',
+    text = '> / ll',
+  }),
+  louder = UI.Button({
+    y = 7,
+    x = monitor.width - 15,
+    width = 3,
+    height = 3,
+    event = 'louder',
+    text = '+',
+  }),
+  quiet = UI.Button({
+    y = 7,
+    x = monitor.width - 20,
+    event = 'quiet',
+    width = 3,
+    height = 3,
+    text = '-',
+  }),
+  volumeDisplay = UI.Text({
+    y = 3,
+    x = monitor.width - 9,
+    width = 4,
+  }),
+  volume1 = UI.Window({
+    y = monitor.height - 1,
+    x = monitor.width - 8,
+    height = 1,
+    width = 1,
+    color = colors.white
+  }),
+  volume2 = UI.Window({
+    y = monitor.height - 2,
+    x = monitor.width - 7,
+    height = 2,
+    width = 1,
+    color = colors.white
+  }),
+  volume3 = UI.Window({
+    y = monitor.height - 3,
+    x = monitor.width - 6,
+    height = 3,
+    width = 1,
+    color = colors.yellow
+  }),
+  volume4 = UI.Window({
+    y = monitor.height - 4,
+    x = monitor.width - 5,
+    height = 4,
+    width = 1,
+    color = colors.yellow,
+  }),
+  volume5 = UI.Window({
+    y = monitor.height - 5,
+    x = monitor.width - 4,
+    height = 5,
+    width = 1,
+    color = colors.orange,
+  }),
+  volume6 = UI.Window({
+    y = monitor.height - 6,
+    x = monitor.width - 3,
+    height = 6,
+    width = 1,
+    color = colors.orange,
+  }),
+  volume7 = UI.Window({
+    y = monitor.height - 7,
+    x = monitor.width - 2,
+    height = 7,
+    width = 1,
+    color = colors.red,
+  }),
+  volume8 = UI.Window({
+    y = monitor.height - 8,
+    x = monitor.width - 1,
+    height = 8,
+    width = 1,
+    color = colors.red,
+  })
+})
+
+page.volumeControls = {
+  page.volume1, page.volume2,
+  page.volume3, page.volume4,
+  page.volume5, page.volume6,
+  page.volume7, page.volume8,
+}
+
+function page:eventHandler(event)
+  if event.type == 'play' then
+    self:play(not self.playing)
+  elseif event.type == 'seek' then
+    self:seek()
+    self:play(true)
+  elseif event.type == 'louder' then
+    if self.playing then
+      self:setVolume(self.volume + 1)
+    end
+  elseif event.type == 'quiet' then
+    if self.playing then
+      self:setVolume(self.volume - 1)
+    end
+  end
+end
+
+function page:setVolume(volume, displayOnly)
+  volume = math.min(volume, 15)
+  volume = math.max(volume, 1)
+  self.volume = volume
+  volume = math.ceil(volume / 2)
+ 
+  for i = 1, volume do
+    self.volumeControls[i].backgroundColor =
+      self.volumeControls[i].color
+  end
+  for i = volume + 1, #self.volumeControls do
+    self.volumeControls[i].backgroundColor = colors.black
+  end
+  for i = 1, #self.volumeControls do
+    self.volumeControls[i]:clear()
+  end
+  local percent = math.ceil(self.volume / 15 * 100)
+  self.volumeDisplay.value = percent .. '%'
+  self.volumeDisplay:draw()
+end
+
+function page:seek()
+
+  local actions = {
+    top = {
+      suck = turtle.suckUp,
+      drop = turtle.dropUp,
+    },
+    bottom = {
+      suck = turtle.suckDown,
+      drop = turtle.dropDown,
+    },
+  }
+
+  local slot = turtle.selectOpenSlot()
+  actions[radio.side].suck()
+  repeat
+    slot = slot + 1
+    if (slot > 16) then
+      slot = 1
+    end
+  until turtle.getItemCount(slot) >= 1
+  turtle.select(slot)
+  actions[radio.side].drop()
+  self:updateStationName()
+end
+
+function page:play(onOff)
+  self.playing = onOff
+  if self.playing then
+
+    if not radio.hasAudio() then
+      self:seek()
+    end
+
+    self:updateStationName()
+    radio.playAudio()
+
+    Event.addNamedTimer('songTimer', 180, false, function()
+      if self.playing then
+        self:seek()
+        self:play(true)
+        self:sync()
+      end
+    end)
+
+  else
+    radio.stopAudio()
+  end
+end
+
+function page.stationName:draw()
+  self:clear()
+  self:centeredWrite(2, self.value)
+end
+
+function page:updateStationName()
+  local title = radio.getAudioTitle()
+ 
+  if title then
+    self.stationName.value = title
+    self.stationName:draw()
+  end
+end
+
+Event.onInterval(1, function()
+  if not page.playing then
+    if page.stationName.value == '' then
+      page:updateStationName()
+    else
+      page.stationName.value = ''
+      page.stationName:draw()
+    end
+    page:sync()
+  end
+end)
+
+page:play(true)
+page:setVolume(page.volume, true)
+
+UI:setPage(page)
+
+turtle.status = 'Jamming'
+UI:pullEvents()
+turtle.status = 'idle'
+page:play(false)
+
+UI.term:reset()