local modules = peripheral.wrap("back")
if not modules then
    error("Cannot find manipulator", 0)
end

if not modules.hasModule("plethora:laser") then error("Cannot find laser", 0) end
if not modules.hasModule("plethora:sensor") then error("Cannot find entity sensor", 0) end

local function fire(entity)
    local x, y, z = entity.x, entity.y, entity.z
    local pitch = -math.atan2(y, math.sqrt(x * x + z * z))
    local yaw = math.atan2(-x, z)

    modules.fire(math.deg(yaw), math.deg(pitch), 5)
    sleep(0.2)
end

local mobNames = { "Tesadorn" }
local mobLookup = {}
for i = 1, #mobNames do
    mobLookup[mobNames[i]] = true
end

local turretState = false

while true do
    parallel.waitForAny(
        function()
            event, key = os.pullEvent("key")
                if key == keys.p then
                    if turretState then
                        turretState = false
                    else
                        turretState = true
                    end
            end
        end,
        function()
            while true do


                while turretState do
                    local mobs = modules.sense()

                    local candidates = {}
                    for i = 1, #mobs do
                        local mob = mobs[i]
                        if mob.name ~= "Tesadorn" then
                            candidates[#candidates + 1] = mob
                        end
                    end

                    if #candidates > 0 then
                        local mob = candidates[math.random(1, #candidates)]
                        fire(mob)
                    else
                        sleep(.1)
                    end
                end


                sleep(.1)
            end
        end
    )
end