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function vzxv.get_inventory(player)
local m = player:get_meta()
local str = m:get_string "items"
local items = str and minetest.deserialize(str)
if not items then
return {}
end
local stacks = {}
for _, stack in ipairs(items) do
table.insert(stacks, ItemStack(stack))
end
return stacks
end
vzxv.on_inventory_update = vzxv.event.create()
function vzxv.update_inventory(player, items)
local new_items = {}
for _, stack in ipairs(items) do
if not stack:is_empty() then
table.insert(new_items, stack:to_string())
end
end
local m = player:get_meta()
m:set_string("items", minetest.serialize(new_items))
local inv = vzxv.get_inventory(player)
vzxv.on_inventory_update:trigger(player, inv)
vzxv.update_hotbar(player)
end
local function match(a, b)
a = ItemStack(a)
b = ItemStack(b)
-- ignore item stack limits
a:set_count(1)
b:set_count(1)
return not a:is_empty() and not b:is_empty() and a:item_fits(b)
end
function vzxv.inventory_idx(player, stack)
local inv = vzxv.get_inventory(player)
for i, inv_stack in ipairs(inv) do
if match(inv_stack, stack) then
return i
end
end
end
function vzxv.update_hotbar(player)
local hotbar = player:get_inventory()
local inv = vzxv.get_inventory(player)
for i=1,8 do
local hotbar_stack = hotbar:get_stack("main", i)
if not hotbar_stack:is_empty() then
local idx = vzxv.inventory_idx(player, hotbar_stack)
if idx then
hotbar_stack:set_count(inv[idx]:get_count())
else
hotbar_stack:set_count(0)
end
hotbar:set_stack("main", i, hotbar_stack)
end
end
end
-- add a stack from the inventory at idx to the hotbar
function vzxv.add_to_hotbar(player, idx, make_room)
local hotbar = player:get_inventory()
local inv = vzxv.get_inventory(player)
for i=1,8 do
local stack = hotbar:get_stack("main", i)
if match(stack, inv[idx]) then
-- stack is already in hotbar
return i
elseif stack:is_empty() then
hotbar:set_stack("main", i, inv[idx])
return i
end
end
if make_room then
for i=7,1,-1 do
local stack = hotbar:get_stack("main", i)
hotbar:set_stack("main", i + 1, stack)
end
hotbar:set_stack("main", 1, inv[idx])
return 1
end
end
-- item is given to player
-- TODO: weight limit
function vzxv.give_items(player, stack)
if stack:is_empty() then return 0 end
local inv = vzxv.get_inventory(player)
local idx = vzxv.inventory_idx(player, stack)
if idx then
inv[idx]:set_count(inv[idx]:get_count() + stack:get_count())
else
table.insert(inv, ItemStack(stack))
end
vzxv.update_inventory(player, inv)
return stack:get_count()
end
-- player actively collects item
function vzxv.collect_items(player, stack)
if stack:is_empty() then return 0 end
local count = vzxv.give_items(player, stack)
local idx = vzxv.inventory_idx(player, stack)
if idx then
vzxv.add_to_hotbar(player, idx)
end
return count
end
-- set require_all to require that all that at least the amount of items being
-- removed exist in the inventory
function vzxv.remove_items(player, stack, require_all)
if stack:is_empty() then return 0 end
local idx = vzxv.inventory_idx(player, stack)
if not idx then return 0 end
local inv = vzxv.get_inventory(player)
if require_all and inv[idx]:get_count() < stack:get_count() then
return 0
end
local taken = inv[idx]:take_item(stack:get_count())
vzxv.update_inventory(inv)
return taken
end
minetest.register_allow_player_inventory_action(function(player,action,inv,info)
if action == "move" then
local from = inv:get_stack(info.from_list, info.from_index)
-- prevent player from splitting stacks
if info.count == from:get_count() then
return
end
end
return 0
end)
function minetest.handle_node_drops(pos, drops, digger)
local rejected = {}
for _, drop in ipairs(drops) do
drop = ItemStack(drop)
local accepted = vzxv.collect_items(digger, drop)
if drop:get_count() - accepted ~= 0 then
table.insert(rejected, drop:peek_item(drop:get_count() - accepted))
end
end
-- delay this until after the node has been set to air
minetest.after(0, function()
for _, stack in ipairs(rejected) do
vzxv.drop(pos, stack)
end
end)
end
minetest.register_on_joinplayer(function(player)
vzxv.update_hotbar(player)
end)
minetest.register_on_placenode(function(_, _, placer, _, stack)
local inv = vzxv.get_inventory(placer)
local idx = vzxv.inventory_idx(placer, stack)
if idx then
inv[idx]:set_count(stack:get_count() - 1)
vzxv.update_inventory(placer, inv)
end
end)
local function give_command(player_name, item, count)
if not player_name then return false end
if not item then return false end
local player = minetest.get_player_by_name(player_name)
if not player then return false, "unknown player" end
count = count and tonumber(count) or 1
local stack = ItemStack(item)
stack:set_count(count)
local count = vzxv.collect_items(player, stack)
return true, ("gave %s %s to %s"):format(count, item, player_name)
end
minetest.override_chatcommand("give", {
params = "<player> <item> [<count>]",
description = "give item to player",
privs = {give = true},
func = function(name, param)
local args = {}
for arg in param:gmatch "(%S+)" do
table.insert(args, arg)
end
return give_command(unpack(args))
end,
})
minetest.override_chatcommand("giveme", {
params = "<item> [<count>]",
description = "give item to you",
privs = {give = true},
func = function(name, param)
local args = {}
for arg in param:gmatch "(%S+)" do
table.insert(args, arg)
end
return give_command(name, unpack(args))
end,
})
minetest.register_chatcommand("clear", {
params = "<player>",
description = "clear inventory of player",
privs = {debug = true},
func = function(name, param)
local player = minetest.get_player_by_name(param)
if not player then return false, "unknown player" end
vzxv.update_inventory(player, {})
return true, "inventory cleared"
end,
})
vzxv.include "ui.lua"
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