capturetheflag/mods/ctf/ctf_classes/items.lua

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local S = minetest.get_translator("ctf")
local function stack_list_to_map(stacks)
local map = {}
for i = 1, #stacks do
map[ItemStack(stacks[i]):get_name()] = true
end
return map
end
-- Returns true if the item shouldn't be allowed to be dropped etc
local function is_class_blacklisted(player, itemname)
local class = ctf_classes.get(player)
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local items = stack_list_to_map(class.properties.item_blacklist)
return items[itemname]
end
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give_initial_stuff.register_stuff_provider(function(player)
local class = ctf_classes.get(player)
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return class.properties.initial_stuff
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end, 1)
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local function remove_blacklist_in_list(list, blacklist_map)
local removed = false
for i=1, #list do
if blacklist_map[ItemStack(list[i]):get_name()] then
list[i] = ""
removed = true
end
end
return removed
end
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ctf_classes.register_on_changed(function(player, old, new)
local inv = player:get_inventory()
if not old then
old = ctf_classes.__classes[ctf_classes.default_class]
end
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local blacklist = old.properties.item_blacklist
if old and #blacklist > 0 then
local blacklist_map = stack_list_to_map(blacklist)
for listname, list in pairs(inv:get_lists()) do
if remove_blacklist_in_list(list, blacklist_map) then
inv:set_list(listname, list)
end
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end
end
do
assert(new)
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local items = new.properties.initial_stuff
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for i = 1, #items do
give_initial_stuff.give_item(inv, ItemStack(items[i]))
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end
end
end)
local old_item_drop = minetest.item_drop
minetest.item_drop = function(itemstack, player, pos)
if is_class_blacklisted(player, itemstack:get_name()) then
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minetest.chat_send_player(player:get_player_name(),
"You're not allowed to drop class items!")
return itemstack
else
return old_item_drop(itemstack, player, pos)
end
end
local old_is_allowed = ctf_map.is_item_allowed_in_team_chest
ctf_map.is_item_allowed_in_team_chest = function(listname, stack, player)
if is_class_blacklisted(player, stack:get_name()) then
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minetest.chat_send_player(player:get_player_name(),
"You're not allowed to put class items in the chest!")
return false
else
return old_is_allowed(listname, stack, player)
end
end
dropondie.register_drop_filter(function(player, itemname)
return not is_class_blacklisted(player, itemname)
end)
local function protect_metadata_inventory(nodename)
local def = table.copy(assert(minetest.registered_nodes[nodename]))
local old
local function wrap(defname)
old = def[defname]
def[defname] = function(pos, listname, index, stack, player, ...)
if is_class_blacklisted(player, stack:get_name()) then
minetest.chat_send_player(player:get_player_name(),
S("You're not allowed to put class items in @1!", def.description or "?"))
return 0
end
return old(pos, listname, index, stack, player, ...)
end
end
old = def.on_metadata_inventory_take
function def.on_metadata_inventory_take(pos, listname, index, stack, player, ...)
local furnaceinv = minetest.get_inventory({type = "node", pos = pos})
local swapped_item = furnaceinv:get_stack(listname, index)
if is_class_blacklisted(player, swapped_item:get_name()) then
furnaceinv:remove_item(listname, swapped_item)
player:get_inventory():add_item("main", swapped_item)
end
if type(old) == "function" then
return old(pos, listname, index, stack, player, ...)
end
end
wrap("allow_metadata_inventory_put")
wrap("allow_metadata_inventory_take")
minetest.register_node(":" .. nodename, def)
end
protect_metadata_inventory("furnace:furnace")
protect_metadata_inventory("furnace:furnace_active")