item_drop/init.lua

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

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

      if not keys_pressed and key
      or (damage_enabled and player:get_hp() <= 0) then
        return
      end

      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 not lua or not lua.itemstring 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

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