From 751f8a754421ab009cee0e9929750a4b026ddcef Mon Sep 17 00:00:00 2001
From: MihailRis <mexaruc@gmail.com>
Date: Mon, 28 Oct 2024 13:07:10 +0300
Subject: [PATCH] add item.get_placing_block

---
 doc/en/scripting/builtins/libitem.md     |  3 +++
 doc/ru/scripting/builtins/libitem.md     |  5 +++-
 src/logic/scripting/lua/libs/libitem.cpp | 32 +++++++++++++++---------
 3 files changed, 27 insertions(+), 13 deletions(-)

diff --git a/doc/en/scripting/builtins/libitem.md b/doc/en/scripting/builtins/libitem.md
index 2b695202..46c144f0 100644
--- a/doc/en/scripting/builtins/libitem.md
+++ b/doc/en/scripting/builtins/libitem.md
@@ -18,4 +18,7 @@ item.defs_count() -> int
 
 -- Returns item icon name to use in 'src' property of an image element
 item.icon(itemid: int) -> str
+
+-- Returns the integer id 'placing-block' or 0
+item.get_placing_block(itemid: int) -> int
 ```
diff --git a/doc/ru/scripting/builtins/libitem.md b/doc/ru/scripting/builtins/libitem.md
index 0bbfcd2a..5b26811c 100644
--- a/doc/ru/scripting/builtins/libitem.md
+++ b/doc/ru/scripting/builtins/libitem.md
@@ -8,7 +8,7 @@ item.name(itemid: int) -> str
 item.index(name: str) -> int
 
 -- Возвращает название предмета, отображаемое в интерфейсе.
-item.caption(blockid: int) -> str
+item.caption(itemid: int) -> str
 
 -- Возвращает максимальный размер стопки для предмета.
 item.stack_size(itemid: int) -> int
@@ -18,6 +18,9 @@ item.defs_count() -> int
 
 -- Возвращает имя иконки предмета для использования в свойстве 'src' элемента image
 item.icon(itemid: int) -> str
+
+-- Возвращает числовой id блока, назначенного как 'placing-block' или 0
+item.get_placing_block(itemid: int) -> int
 ```
 
 
diff --git a/src/logic/scripting/lua/libs/libitem.cpp b/src/logic/scripting/lua/libs/libitem.cpp
index 52b15c69..5088d7bc 100644
--- a/src/logic/scripting/lua/libs/libitem.cpp
+++ b/src/logic/scripting/lua/libs/libitem.cpp
@@ -10,30 +10,30 @@ static const ItemDef* get_item_def(lua::State* L, int idx) {
     return indices->items.get(id);
 }
 
-static int l_item_name(lua::State* L) {
+static int l_name(lua::State* L) {
     if (auto def = get_item_def(L, 1)) {
         return lua::pushstring(L, def->name);
     }
     return 0;
 }
 
-static int l_item_index(lua::State* L) {
+static int l_index(lua::State* L) {
     auto name = lua::require_string(L, 1);
     return lua::pushinteger(L, content->items.require(name).rt.id);
 }
 
-static int l_item_stack_size(lua::State* L) {
+static int l_stack_size(lua::State* L) {
     if (auto def = get_item_def(L, 1)) {
         return lua::pushinteger(L, def->stackSize);
     }
     return 0;
 }
 
-static int l_item_defs_count(lua::State* L) {
+static int l_defs_count(lua::State* L) {
     return lua::pushinteger(L, indices->items.count());
 }
 
-static int l_item_get_icon(lua::State* L) {
+static int l_get_icon(lua::State* L) {
     if (auto def = get_item_def(L, 1)) {
         switch (def->iconType) {
             case ItemIconType::NONE:
@@ -47,18 +47,26 @@ static int l_item_get_icon(lua::State* L) {
     return 0;
 }
 
-static int l_item_caption(lua::State* L) {
+static int l_caption(lua::State* L) {
     if (auto def = get_item_def(L, 1)) {
         return lua::pushstring(L, def->caption);
     }
     return 0;
 }
 
+static int l_get_placing_block(lua::State* L) {
+    if (auto def = get_item_def(L, 1)) {
+        return lua::pushinteger(L, def->rt.placingBlock);
+    }
+    return 0;
+}
+
 const luaL_Reg itemlib[] = {
-    {"index", lua::wrap<l_item_index>},
-    {"name", lua::wrap<l_item_name>},
-    {"stack_size", lua::wrap<l_item_stack_size>},
-    {"defs_count", lua::wrap<l_item_defs_count>},
-    {"icon", lua::wrap<l_item_get_icon>},
-    {"caption", lua::wrap<l_item_caption>},
+    {"index", lua::wrap<l_index>},
+    {"name", lua::wrap<l_name>},
+    {"stack_size", lua::wrap<l_stack_size>},
+    {"defs_count", lua::wrap<l_defs_count>},
+    {"icon", lua::wrap<l_get_icon>},
+    {"caption", lua::wrap<l_caption>},
+    {"get_placing_block", lua::wrap<l_get_placing_block>},
     {NULL, NULL}};