local function drawui()
  digiline_send("touch",{
  {
    command="clear",
  },{
    command="addbutton",
    name="btnxinc",
    label="x+",
    Y=0.8, X=0.8, H=0.8, W=1.2,
  },{
    command="addbutton",
    name="btnxdec",
    label="x-",
    Y=0.8, X=2, H=0.8, W=1.2,
  },{
    command="addbutton",
    name="btnydec",
    label="y-",
    Y=1.6, H=0.8, W=1.2, X=2,
  },{
    command="addbutton",
    name="btnyinc",
    label="y+",
    Y=1.6, X=0.8, H=0.8, W=1.2,
  },{
    command="addbutton",
    name="btnzinc",
    label="z+",
    Y=2.4, X=0.8, H=0.8, W=1.2,
  },{
    command="addbutton",
    name="btnzdec",
    label="z-",
    Y=2.4, X=2, H=0.8, W=1.2,
  },{
    command="addbutton",
    name="btnstepinc",
    label="step+",
    Y=3.2, H=0.8, W=1.2, X=0.8,
  },{
    command="addbutton",
    name="btnstepdec",
    label="step-",
    Y=3.2, H=0.8, W=1.2, X=2,
  },{
    command="addbutton",
    name="btnsim",
    label="Simulate",
    Y=4.4, X=0.8, H=0.8, W=1.6,
  },{
    command="addbutton",
    name="btnjump",
    label="Jump",
    Y=5.2, H=0.8, W=1.6, X=0.8,
  },{
    command="addbutton",
    name="btnreset",
    label="Reset",
    Y=6.4, H=0.8, W=1.6, X=0.8,
  },{
    command="addbutton",
    name="btnpark",
    label="Park",
    Y=6.4, H=0.8, W=1.6, X=2.4,
  },{
    command="addbutton",
    name="btnfire",
    label="Fire",
    Y=5.2, X=2.4, H=0.8, W=1.6,
  },{
    command="addbutton",
    name="btnfired",
    label="FireDown",
    Y=5.2, X=5.4, H=0.8, W=1.6,
  },{
    command="addlabel",
    label="Position",
    Y=0.3, X=3.5, H=0.8, W=1.2,
  },{
    command="addlabel",
    label="Destination",
    Y=0.3, X=5.9, H=0.8, W=1.2,
  },{
    command="addlabel",
    label="Step: "..mem.step or 1,
    Y=3.3, X=3.5, H=0.8, W=1.2,
  }
})

end

local function updatepositionui()
   digiline_send("touch",{
   {
    command="addlabel",
    label="X: "..mem.position.x or 0,
    Y=0.7, X=3.5, H=0.8, W=1.2,
  },{
    command="addlabel",
    label="Y: "..mem.position.y or 0,
    Y=1.5, X=3.5, H=0.8, W=1.2,
  },{
    command="addlabel",
    label="Z: "..mem.position.z or 0,
    Y=2.3, X=3.5, H=0.8, W=1.2,
  },{
    command="addlabel",
    label="X: "..mem.target.x or 0,
    Y=0.7, X=6, H=0.8, W=1.2,
  },{
    command="addlabel",
    label="Y: "..mem.target.y or 0,
    Y=1.5, X=6, H=0.8, W=1.2,
  },{
    command="addlabel",
    label="Z: "..mem.target.z or 0,
    Y=2.3, X=6, H=0.8, W=1.2,
  },{
    command="addlabel",
    label="Power: "..mem.powerstorage or 0,
    Y=0.1, X=0.1, H=0.8, W=1.2,
  },{
    command="addlabel",
    label="Distance: "..mem.distance or 0,
    Y=2.9, X=3.5, H=0.8, W=1.2,
  },{
    command="addlabel",
    label="Power req: "..mem.power_req or 0,
    Y=2.9, X=6, H=0.8, W=1.2,
  },{
    command="addlabel",
    label="Simulate: "..tostring(mem.sim),
    Y=3.3, X=6, H=0.8, W=1.2,
  },{
    command="addlabel",
    label="Sim: "..mem.msg,
    Y=4.3, X=3.5, H=0.8, W=1.2,
  }
   })
end


if event.type == "program" then
  mem.position = {x = 0, y = 0, z=0}
  mem.target = {x = 0, y = 0, z=0}
  mem.step = 1
  mem.sim = false
  mem.msg = ""
  mem.powerstorage = 0
  mem.distance = 0
  mem.power_req = 0
  drawui()
  updatepositionui()
  digiline_send("jumpdrive", {
  	command = "get"
  })
--interrupt(2)
--elseif event.type == "interrupt" then
---  digiline_send("jumpdrive", {
---  	command = "get"
---  })
elseif event.type == "digiline" and event.channel == "jumpdrive" then
  if event.msg.position ~= nil then
     mem.position = event.msg.position
  end
  if event.msg.target ~= nil then
     mem.target = event.msg.target
  end
  if event.msg.powerstorage ~= nil then
     mem.powerstorage = event.msg.powerstorage
  end
  if event.msg.distance ~= nil then
     mem.distance = event.msg.distance
  end
  if event.msg.power_req ~= nil then
     mem.power_req = event.msg.power_req
  end
  if event.msg.success ~= nill then
     mem.sim = event.msg.success
  end
  if event.msg.msg ~= nill then
     mem.msg = event.msg.msg
  end 

  drawui()
  updatepositionui()
elseif event.type == "digiline" and event.channel == "touch" then
  if event.msg.btnreset then
      digiline_send("jumpdrive", {
	       command = "reset"
      })
  elseif event.msg.btnstepinc then
     mem.step = mem.step+1
  elseif event.msg.btnstepdec then
     mem.step = mem.step-1
     if mem.step < 1 then
        mem.step = 1
     end
  elseif event.msg.btnxinc then
       local x = mem.target.x + mem.step
       digiline_send("jumpdrive", { command = "set", key = "x", value = x }) 
  elseif event.msg.btnxdec then
       local x = mem.target.x - mem.step
       digiline_send("jumpdrive", { command = "set", key = "x", value = x })
  elseif event.msg.btnyinc then
       local y = mem.target.y + mem.step
       digiline_send("jumpdrive", { command = "set", key = "y", value = y }) 
  elseif event.msg.btnydec then
       local y = mem.target.y - mem.step
       digiline_send("jumpdrive", { command = "set", key = "y", value = y })
  elseif event.msg.btnzinc then
       local z = mem.target.z + mem.step
       digiline_send("jumpdrive", { command = "set", key = "z", value = z }) 
  elseif event.msg.btnzdec then
       local z = mem.target.z - mem.step
       digiline_send("jumpdrive", { command = "set", key = "z", value = z })
  elseif event.msg.btnsim then
       digiline_send("jumpdrive", {
      	command = "simulate"
       })
  elseif event.msg.btnjump then
       digiline_send("jumpdrive", {
      	command = "jump"
       })
  elseif event.msg.btnfire then
      digiline_send("cannon", { command="fire", verbose=false })
  elseif event.msg.btnfired then
      digiline_send("cannond", { command="fire", verbose=false })
  elseif event.msg.btnpark then
      local x = mem.target.x - 5
      local y = mem.target.y - 2
      local z = mem.target.z + 4
      digiline_send("jumpdrive", { command = "set", key = "x", value = x })
      digiline_send("jumpdrive", { command = "set", key = "y", value = y })
      digiline_send("jumpdrive", { command = "set", key = "z", value = z })
  end

  digiline_send("jumpdrive", {
  	command = "get"
  })
end