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https://github.com/moparisthebest/minetest
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LuaItemStack: Fix and document behavior of set_name, set_count, set_wear, set_metadata
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@ -2152,13 +2152,16 @@ ItemStack: A stack of items.
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methods:
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- is_empty(): return true if stack is empty
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- get_name(): returns item name (e.g. "default:stone")
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- set_name(itemname)
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- set_name(itemname): returns true/false (success)
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^ clears item on failure
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- get_count(): returns number of items on the stack
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- set_count(count)
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- set_count(count): returns true/false (success)
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^ clears item on failure
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- get_wear(): returns tool wear (0-65535), 0 for non-tools
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- set_wear(wear)
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- set_wear(wear): returns true/false (success)
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^ clears item on failure
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- get_metadata(): returns metadata (a string attached to an item stack)
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- set_metadata(metadata)
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- set_metadata(metadata): returns true
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- clear(): removes all items from the stack, making it empty
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- replace(item): replace the contents of this stack (item can also
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be an itemstring or table)
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@ -63,11 +63,15 @@ int LuaItemStack::l_set_name(lua_State *L)
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NO_MAP_LOCK_REQUIRED;
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LuaItemStack *o = checkobject(L, 1);
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ItemStack &item = o->m_stack;
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bool status = true;
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item.name = luaL_checkstring(L, 2);
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if (item.name == "" || item.empty())
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if (item.name == "" || item.empty()) {
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item.clear();
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status = false;
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}
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lua_pushboolean(L, status);
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return 1;
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}
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@ -87,11 +91,18 @@ int LuaItemStack::l_set_count(lua_State *L)
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NO_MAP_LOCK_REQUIRED;
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LuaItemStack *o = checkobject(L, 1);
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ItemStack &item = o->m_stack;
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item.count = luaL_checkinteger(L, 2);
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if (item.name == "" || item.empty())
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bool status;
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lua_Integer count = luaL_checkinteger(L, 2);
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if (count <= 65535) {
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item.count = count;
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status = true;
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} else {
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item.clear();
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status = false;
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}
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lua_pushboolean(L, status);
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return 1;
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}
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@ -111,11 +122,18 @@ int LuaItemStack::l_set_wear(lua_State *L)
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NO_MAP_LOCK_REQUIRED;
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LuaItemStack *o = checkobject(L, 1);
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ItemStack &item = o->m_stack;
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item.wear = luaL_checkinteger(L, 2);
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if (item.wear > 65535)
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bool status;
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lua_Integer wear = luaL_checkinteger(L, 2);
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if (wear <= 65535) {
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item.wear = wear;
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status = true;
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} else {
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item.clear();
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status = false;
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}
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lua_pushboolean(L, status);
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return 1;
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}
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@ -138,11 +156,9 @@ int LuaItemStack::l_set_metadata(lua_State *L)
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size_t len = 0;
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const char *ptr = luaL_checklstring(L, 2, &len);
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if (ptr)
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item.metadata.assign(ptr, len);
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else
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item.metadata = "";
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item.metadata.assign(ptr, len);
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lua_pushboolean(L, true);
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return 1;
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}
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@ -533,7 +549,7 @@ int ModApiItemMod::l_get_content_id(lua_State *L)
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INodeDefManager *ndef = getServer(L)->getNodeDefManager();
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content_t c = ndef->getId(name);
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lua_pushinteger(L, c);
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return 1; /* number of results */
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}
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@ -546,7 +562,7 @@ int ModApiItemMod::l_get_name_from_content_id(lua_State *L)
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INodeDefManager *ndef = getServer(L)->getNodeDefManager();
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const char *name = ndef->get(c).name.c_str();
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lua_pushstring(L, name);
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return 1; /* number of results */
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}
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