local pickup = minetest.settings:get_bool("enable_item_pickup")
local drop = minetest.settings:get_bool("enable_item_drop")
local key = minetest.settings:get_bool("enable_item_pickup_key")

if pickup == nil then pickup = true end
if drop == nil then drop = true end
if key == nil then key = true end

local keytype = minetest.settings:get("item_pickup_keytype") or "Use"
local pickup_gain = tonumber(minetest.settings:get("item_pickup_gain")) or 0.4
local pickup_radius = tonumber(minetest.settings:get("item_pickup_radius")) or 0.75

local timer = 0

if pickup then
  minetest.register_globalstep(function(dtime)

    timer = timer + dtime
    if timer < 0.2 then return end
    timer = 0

    for _,player in ipairs(minetest.get_connected_players()) do
      local keys_pressed = false

      local control = player:get_player_control()

      if keytype == "Use" then
        if control.aux1 == true then keys_pressed = true end
      elseif keytype == "Sneak" then
        if control.sneak == true then keys_pressed = true end
      elseif keytype == "LeftAndRight" then -- LeftAndRight combination
        if control.left and control.right then keys_pressed = true end
      elseif keytype == "RMB" then
        if control.RMB == true then keys_pressed = true end
      elseif keytype == "SneakAndRMB" then -- SneakAndRMB combination
        if control.sneak and control.RMB then keys_pressed = true end
      end

      if keys_pressed or not key then

        if player:get_hp() > 0 or not minetest.settings:get_bool("enable_damage") then
          local pos = player:getpos()
          pos.y = pos.y+0.5
          local inv = player:get_inventory()

          local objectlist = minetest.get_objects_inside_radius(pos, pickup_radius)
          for _,object in ipairs(objectlist) do
            if not object:is_player()
            and object:get_luaentity()
            and object:get_luaentity().name == "__builtin:item" then
              local pos2 = object:getpos()
              local distance = math.sqrt(((pos2.x - pos.x) * (pos2.x - pos.x)) + ((pos2.y - pos.y) * (pos2.y - pos.y))
                + ((pos2.z - pos.z) * (pos2.z - pos.z)))
              if distance <= 1 then
                if inv and inv:room_for_item("main", ItemStack(object:get_luaentity().itemstring)) then
                  inv:add_item("main", ItemStack(object:get_luaentity().itemstring))
                  if object:get_luaentity().itemstring ~= "" then
                    minetest.sound_play("item_drop_pickup", {
                      to_player = player:get_player_name(),
                      gain = pickup_gain,
                    })
                  end
                  object:get_luaentity().itemstring = ""
                  object:remove()
                end
              else
                if object:get_luaentity().collect then
                  if inv and inv:room_for_item("main", ItemStack(object:get_luaentity().itemstring)) then
                    local pos1 = pos
                    pos1.y = pos1.y+0.2
                    local vec = {x=pos1.x-pos2.x, y=pos1.y-pos2.y, z=pos1.z-pos2.z}
                    vec.x = vec.x*3
                    vec.y = vec.y*3
                    vec.z = vec.z*3
                    object:setvelocity(vec)
                    object:get_luaentity().physical_state = false
                    object:get_luaentity().object:set_properties({
                      physical = false
                    })

                    minetest.after(1, function()
                      local lua = object:get_luaentity()
                      if object == nil or lua == nil or lua.itemstring == nil then
                        return
                      end
                      if inv:room_for_item("main", ItemStack(object:get_luaentity().itemstring)) then
                        inv:add_item("main", ItemStack(object:get_luaentity().itemstring))
                        if object:get_luaentity().itemstring ~= "" then
                          minetest.sound_play("item_drop_pickup", {
                            to_player = player:get_player_name(),
                            gain = pickup_gain,
                          })
                        end
                        object:get_luaentity().itemstring = ""
                        object:remove()
                      else
                        object:setvelocity({x=0,y=0,z=0})
                        object:get_luaentity().physical_state = true
                        object:get_luaentity().object:set_properties({
                          physical = true
                        })
                      end
                    end, {player, object})
                  end
                end
              end
            end
          end
        end
      end
    end
  end)
end

if drop then
  function minetest.handle_node_drops(pos, drops, digger)

    local inv
    local diggerPos = pos

    if minetest.settings:get_bool("creative_mode") and digger and digger:is_player() then
      inv = digger:get_inventory()
      diggerPos = digger:getpos()
    end

    for _,item in ipairs(drops) do
      local count, name
      if type(item) == "string" then
        count = 1
        name = item
      else
        count = item:get_count()
        name = item:get_name()
      end

      if not inv or not inv:contains_item("main", ItemStack(name)) then
        for i=1,count do

          local adjustedPos = {x=diggerPos.x, y=diggerPos.y, z=diggerPos.z}
          local obj = minetest.add_item(adjustedPos, name)

          if obj ~= nil then
            obj:get_luaentity().collect = true
            local x = math.random(1, 5)
            if math.random(1,2) == 1 then x = -x end

            local z = math.random(1, 5)
            if math.random(1,2) == 1 then z = -z end

            obj:setvelocity({x=1/x, y=obj:getvelocity().y, z=1/z})
          end
        end
      end
    end
  end
end

if minetest.settings:get("log_mods") then minetest.log("action", "[Mod] item_drop loaded") end