controller

os.loadAPI("ocs/apis/sensor")
rednet.open("left")
local prox = sensor.wrap("right")

local ghostnames =
{
[6] = "Blinky",
[11] = "Pinky",
[12] = "Inky",
[13] = "Clyde"
}

local ghosts =
{
    ["Blinky"] = {},
    ["Pinky"]= {},
    ["Inky"] = {},
    ["Clyde"] = {}
}

ghosts["Blinky"].state = "scatter"
ghosts["Blinky"].X = 14
ghosts["Blinky"].Y = 12
ghosts["Pinky"].state = "scatter"
ghosts["Pinky"].X = 14
ghosts["Pinky"].Y = 12
ghosts["Inky"].state = "scatter"
ghosts["Inky"].X = 14
ghosts["Inky"].Y = 12
ghosts["Clyde"].state = "scatter"
ghosts["Clyde"].X = 14
ghosts["Clyde"].Y = 12

local playername = "mattivapa"

local data = {}
data.X = 14
data.Y = 24
data.dX = -1
data.dY = 0
data.gold = 0
data.diamonds = 0

local score = 0

local offset = {}
offset.X = 20
offset.Z = 14

local facings = {{-1,0},{0,1},{1,0},{0,-1}}

local yawToFacing = function(yaw)
  local ind = math.floor(math.fmod(math.abs(yaw)+45,360)/90)
  return facings[ind+1]
end

local worldToGame = function(X,Z)
  return {offset.Z+Z,offset.X-X}
end

local updateData = function()
--  print(1)
  local details = prox.getTargetDetails(playername)
--  print(2)
  if details ~= nil then
    local pos = worldToGame(details.Position.X,details.Position.Z)
    local facing = yawToFacing(details.Yaw)
    data.X = pos[1]
    data.Y = pos[2]
    data.dX = facing[1]
    data.dY = facing[2]
    local g = 0
    local d = 0
    for k,v in pairs(details.Inventory) do
      if v["Name"] == "Diamond" then
        d = d+v["Size"]
      elseif v["Name"] == "Gold Ore" then
        g = g+v["Size"]
      end
    end
    if g > data.gold then
      data.gold = g
      score = score + 10*g
      print("Score: "..tostring(score))
    end
    if d > data.diamonds then
      data.diamonds = d
      score = score + 50*d
      print("Score: "..tostring(score))
    end
  end
end

print("Game starting, get to the starting position")
sleep(5)
print("Sending start message...")
rednet.broadcast("Begin!")

while true do
  updateData()
  local id, message, dist = rednet.receive(0.2)
  local ghost = ghostnames[id]
  if ghost ~= nil then
    message = textutils.unserialize(message)
    ghosts[ghost].X = message.X
    ghosts[ghost].Y = message.Y
    if message.state == "dead" and ghosts[ghost].state ~= "dead" then
        score = score + 400
    end
    ghosts[ghost].state = message.state
    rednet.send(id,textutils.serialize(data))
  end
end