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Add player inventory callbacks
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@ -593,6 +593,8 @@ core.registered_on_priv_revoke, core.register_on_priv_revoke = make_registration
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core.registered_can_bypass_userlimit, core.register_can_bypass_userlimit = make_registration()
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core.registered_on_modchannel_message, core.register_on_modchannel_message = make_registration()
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core.registered_on_auth_fail, core.register_on_auth_fail = make_registration()
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core.registered_on_player_inventory_actions, core.register_on_player_inventory_action = make_registration()
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core.registered_allow_player_inventory_actions, core.register_allow_player_inventory_action = make_registration()
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--
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-- Compatibility for on_mapgen_init()
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@ -2880,6 +2880,22 @@ Call these functions only at load time!
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* `minetest.register_craft_predict(func(itemstack, player, old_craft_grid, craft_inv))`
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* The same as before, except that it is called before the player crafts, to
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make craft prediction, and it should not change anything.
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* `minetest.register_allow_player_inventory_action(func(player, inventory, action, inventory_info))`
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* Determinates how much of a stack may be taken, put or moved to a
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player inventory.
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* `player` (type `ObjectRef`) is the player who modified the inventory
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`inventory` (type `InvRef`).
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* List of possible `action` (string) values and their
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`inventory_info` (table) contents:
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* `move`: `{from_list=string, to_list=string, from_index=number, to_index=number, count=number}`
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* `put`: `{listname=string, index=number, stack=ItemStack}`
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* `take`: Same as `put`
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* Return a numeric value to limit the amount of items to be taken, put or
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moved. A value of `-1` for `take` will make the source stack infinite.
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* `minetest.register_on_player_inventory_action(func(player, inventory, action, inventory_info))`
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* Called after a take, put or move event from/to/in a player inventory
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* Function arguments: see `minetest.register_allow_player_inventory_action`
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* Does not accept or handle any return value.
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* `minetest.register_on_protection_violation(func(pos, name))`
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* Called by `builtin` and mods when a player violates protection at a
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position (eg, digs a node or punches a protected entity).
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@ -314,6 +314,33 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
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}
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}
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// Query player inventories
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// Move occurs in the same player inventory
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if (from_inv.type == InventoryLocation::PLAYER &&
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to_inv.type == InventoryLocation::PLAYER &&
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from_inv.name == to_inv.name) {
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src_can_take_count = PLAYER_TO_SA(player)->player_inventory_AllowMove(
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from_inv, from_list, from_i,
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to_list, to_i, try_take_count, player);
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dst_can_put_count = src_can_take_count;
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} else {
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// Destination is a player
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if (to_inv.type == InventoryLocation::PLAYER) {
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ItemStack src_item = list_from->getItem(from_i);
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src_item.count = try_take_count;
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dst_can_put_count = PLAYER_TO_SA(player)->player_inventory_AllowPut(
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to_inv, to_list, to_i, src_item, player);
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}
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// Source is a player
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if (from_inv.type == InventoryLocation::PLAYER) {
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ItemStack src_item = list_from->getItem(from_i);
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src_item.count = try_take_count;
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src_can_take_count = PLAYER_TO_SA(player)->player_inventory_AllowTake(
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from_inv, from_list, from_i, src_item, player);
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}
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}
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int old_count = count;
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/* Modify count according to collected data */
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@ -482,12 +509,34 @@ void IMoveAction::apply(InventoryManager *mgr, ServerActiveObject *player, IGame
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to_inv.p, to_list, to_i, src_item, player);
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}
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// Source is nodemeta
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else if (from_inv.type == InventoryLocation::NODEMETA) {
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if (from_inv.type == InventoryLocation::NODEMETA) {
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PLAYER_TO_SA(player)->nodemeta_inventory_OnTake(
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from_inv.p, from_list, from_i, src_item, player);
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}
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}
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// Player inventories
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// Both endpoints are same player inventory
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if (from_inv.type == InventoryLocation::PLAYER &&
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to_inv.type == InventoryLocation::PLAYER &&
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from_inv.name == to_inv.name) {
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PLAYER_TO_SA(player)->player_inventory_OnMove(
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from_inv, from_list, from_i,
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to_list, to_i, count, player);
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} else {
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// Destination is player inventory
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if (to_inv.type == InventoryLocation::PLAYER) {
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PLAYER_TO_SA(player)->player_inventory_OnPut(
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to_inv, to_list, to_i, src_item, player);
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}
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// Source is player inventory
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if (from_inv.type == InventoryLocation::PLAYER) {
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PLAYER_TO_SA(player)->player_inventory_OnTake(
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from_inv, from_list, from_i, src_item, player);
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}
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}
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mgr->setInventoryModified(from_inv, false);
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if (inv_from != inv_to)
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mgr->setInventoryModified(to_inv, false);
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@ -22,6 +22,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#include "common/c_converter.h"
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#include "common/c_content.h"
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#include "debug.h"
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#include "inventorymanager.h"
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#include "lua_api/l_inventory.h"
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#include "lua_api/l_item.h"
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#include "util/string.h"
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void ScriptApiPlayer::on_newplayer(ServerActiveObject *player)
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@ -225,3 +228,146 @@ void ScriptApiPlayer::on_auth_failure(const std::string &name, const std::string
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lua_pushstring(L, ip.c_str());
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runCallbacks(2, RUN_CALLBACKS_MODE_FIRST);
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}
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void ScriptApiPlayer::pushMoveArguments(
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const InventoryLocation &loc,
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const std::string &from_list, int from_index,
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const std::string &to_list, int to_index,
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int count, ServerActiveObject *player)
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{
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lua_State *L = getStack();
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objectrefGetOrCreate(L, player); // player
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lua_pushstring(L, "move"); // action
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InvRef::create(L, loc); // inventory
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lua_newtable(L);
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{
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// Table containing the action information
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lua_pushstring(L, from_list.c_str());
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lua_setfield(L, -2, "from_list");
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lua_pushstring(L, to_list.c_str());
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lua_setfield(L, -2, "to_list");
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lua_pushinteger(L, from_index + 1);
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lua_setfield(L, -2, "from_index");
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lua_pushinteger(L, to_index + 1);
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lua_setfield(L, -2, "to_index");
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lua_pushinteger(L, count);
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lua_setfield(L, -2, "count");
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}
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}
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void ScriptApiPlayer::pushPutTakeArguments(
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const char *method, const InventoryLocation &loc,
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const std::string &listname, int index, const ItemStack &stack,
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ServerActiveObject *player)
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{
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lua_State *L = getStack();
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objectrefGetOrCreate(L, player); // player
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lua_pushstring(L, method); // action
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InvRef::create(L, loc); // inventory
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lua_newtable(L);
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{
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// Table containing the action information
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lua_pushstring(L, listname.c_str());
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lua_setfield(L, -2, "listname");
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lua_pushinteger(L, index + 1);
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lua_setfield(L, -2, "index");
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LuaItemStack::create(L, stack);
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lua_setfield(L, -2, "stack");
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}
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}
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// Return number of accepted items to be moved
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int ScriptApiPlayer::player_inventory_AllowMove(
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const InventoryLocation &loc,
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const std::string &from_list, int from_index,
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const std::string &to_list, int to_index,
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int count, ServerActiveObject *player)
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{
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SCRIPTAPI_PRECHECKHEADER
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lua_getglobal(L, "core");
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lua_getfield(L, -1, "registered_allow_player_inventory_actions");
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pushMoveArguments(loc, from_list, from_index, to_list, to_index, count, player);
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runCallbacks(4, RUN_CALLBACKS_MODE_OR_SC);
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return lua_type(L, -1) == LUA_TNUMBER ? lua_tonumber(L, -1) : count;
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}
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// Return number of accepted items to be put
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int ScriptApiPlayer::player_inventory_AllowPut(
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const InventoryLocation &loc,
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const std::string &listname, int index, const ItemStack &stack,
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ServerActiveObject *player)
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{
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SCRIPTAPI_PRECHECKHEADER
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lua_getglobal(L, "core");
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lua_getfield(L, -1, "registered_allow_player_inventory_actions");
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pushPutTakeArguments("put", loc, listname, index, stack, player);
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runCallbacks(4, RUN_CALLBACKS_MODE_OR_SC);
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return lua_type(L, -1) == LUA_TNUMBER ? lua_tonumber(L, -1) : stack.count;
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}
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// Return number of accepted items to be taken
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int ScriptApiPlayer::player_inventory_AllowTake(
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const InventoryLocation &loc,
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const std::string &listname, int index, const ItemStack &stack,
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ServerActiveObject *player)
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{
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SCRIPTAPI_PRECHECKHEADER
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lua_getglobal(L, "core");
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lua_getfield(L, -1, "registered_allow_player_inventory_actions");
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pushPutTakeArguments("take", loc, listname, index, stack, player);
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runCallbacks(4, RUN_CALLBACKS_MODE_OR_SC);
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return lua_type(L, -1) == LUA_TNUMBER ? lua_tonumber(L, -1) : stack.count;
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}
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// Report moved items
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void ScriptApiPlayer::player_inventory_OnMove(
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const InventoryLocation &loc,
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const std::string &from_list, int from_index,
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const std::string &to_list, int to_index,
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int count, ServerActiveObject *player)
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{
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SCRIPTAPI_PRECHECKHEADER
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lua_getglobal(L, "core");
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lua_getfield(L, -1, "registered_on_player_inventory_actions");
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pushMoveArguments(loc, from_list, from_index, to_list, to_index, count, player);
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runCallbacks(4, RUN_CALLBACKS_MODE_FIRST);
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}
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// Report put items
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void ScriptApiPlayer::player_inventory_OnPut(
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const InventoryLocation &loc,
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const std::string &listname, int index, const ItemStack &stack,
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ServerActiveObject *player)
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{
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SCRIPTAPI_PRECHECKHEADER
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lua_getglobal(L, "core");
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lua_getfield(L, -1, "registered_on_player_inventory_actions");
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pushPutTakeArguments("put", loc, listname, index, stack, player);
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runCallbacks(4, RUN_CALLBACKS_MODE_FIRST);
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}
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// Report taken items
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void ScriptApiPlayer::player_inventory_OnTake(
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const InventoryLocation &loc,
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const std::string &listname, int index, const ItemStack &stack,
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ServerActiveObject *player)
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{
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SCRIPTAPI_PRECHECKHEADER
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lua_getglobal(L, "core");
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lua_getfield(L, -1, "registered_on_player_inventory_actions");
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pushPutTakeArguments("take", loc, listname, index, stack, player);
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runCallbacks(4, RUN_CALLBACKS_MODE_FIRST);
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}
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@ -23,6 +23,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#include "irr_v3d.h"
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#include "util/string.h"
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struct InventoryLocation;
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struct ItemStack;
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struct ToolCapabilities;
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struct PlayerHPChangeReason;
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@ -48,4 +50,47 @@ public:
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void on_playerReceiveFields(ServerActiveObject *player,
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const std::string &formname, const StringMap &fields);
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void on_auth_failure(const std::string &name, const std::string &ip);
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// Player inventory callbacks
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// Return number of accepted items to be moved
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int player_inventory_AllowMove(
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const InventoryLocation &loc,
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const std::string &from_list, int from_index,
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const std::string &to_list, int to_index,
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int count, ServerActiveObject *player);
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// Return number of accepted items to be put
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int player_inventory_AllowPut(
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const InventoryLocation &loc,
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const std::string &listname, int index, const ItemStack &stack,
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ServerActiveObject *player);
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// Return number of accepted items to be taken
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int player_inventory_AllowTake(
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const InventoryLocation &loc,
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const std::string &listname, int index, const ItemStack &stack,
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ServerActiveObject *player);
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// Report moved items
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void player_inventory_OnMove(
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const InventoryLocation &loc,
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const std::string &from_list, int from_index,
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const std::string &to_list, int to_index,
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int count, ServerActiveObject *player);
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// Report put items
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void player_inventory_OnPut(
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const InventoryLocation &loc,
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const std::string &listname, int index, const ItemStack &stack,
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ServerActiveObject *player);
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// Report taken items
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void player_inventory_OnTake(
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const InventoryLocation &loc,
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const std::string &listname, int index, const ItemStack &stack,
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ServerActiveObject *player);
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private:
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void pushPutTakeArguments(
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const char *method, const InventoryLocation &loc,
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const std::string &listname, int index, const ItemStack &stack,
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ServerActiveObject *player);
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void pushMoveArguments(const InventoryLocation &loc,
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const std::string &from_list, int from_index,
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const std::string &to_list, int to_index,
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int count, ServerActiveObject *player);
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};
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