[CSM] Add event on_place_node API lua (#5548)

* [CSM] Add event on_place_node API lua

src/script/cpp_api/s_base.cpp

@@ -42,6 +42,7 @@ extern "C" {
 
 #include <stdio.h>
 #include <cstdarg>
+#include "script/common/c_content.h"
 #include <sstream>
 
 
@@ -320,22 +321,10 @@ void ScriptApiBase::objectrefGetOrCreate(lua_State *L,
 	if (cobj == NULL || cobj->getId() == 0) {
 		ObjectRef::create(L, cobj);
 	} else {
-		objectrefGet(L, cobj->getId());
+		push_objectRef(L, cobj->getId());
 	}
 }
 
-void ScriptApiBase::objectrefGet(lua_State *L, u16 id)
-{
-	// Get core.object_refs[i]
-	lua_getglobal(L, "core");
-	lua_getfield(L, -1, "object_refs");
-	luaL_checktype(L, -1, LUA_TTABLE);
-	lua_pushnumber(L, id);
-	lua_gettable(L, -2);
-	lua_remove(L, -2); // object_refs
-	lua_remove(L, -2); // core
-}
-
 Server* ScriptApiBase::getServer()
 {
 	return dynamic_cast<Server *>(m_gamedef);

src/script/cpp_api/s_base.h

@@ -115,7 +115,6 @@ protected:
 	void setGuiEngine(GUIEngine* guiengine) { m_guiengine = guiengine; }
 
 	void objectrefGetOrCreate(lua_State *L, ServerActiveObject *cobj);
-	void objectrefGet(lua_State *L, u16 id);
 
 	RecursiveMutex  m_luastackmutex;
 	std::string     m_last_run_mod;

src/script/cpp_api/s_client.cpp

@@ -23,6 +23,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "client.h"
 #include "common/c_converter.h"
 #include "common/c_content.h"
+#include "s_item.h"
 
 void ScriptApiClient::on_shutdown()
 {
@@ -189,6 +190,23 @@ bool ScriptApiClient::on_punchnode(v3s16 p, MapNode node)
 	return blocked;
 }
 
+bool ScriptApiClient::on_placenode(const PointedThing &pointed, const ItemDefinition &item)
+{
+	SCRIPTAPI_PRECHECKHEADER
+
+	// Get core.registered_on_placenode
+	lua_getglobal(L, "core");
+	lua_getfield(L, -1, "registered_on_placenode");
+
+	// Push data
+	push_pointed_thing(L, pointed);
+	push_item_definition(L, item);
+
+	// Call functions
+	runCallbacks(2, RUN_CALLBACKS_MODE_OR);
+	return lua_toboolean(L, -1);
+}
+
 void ScriptApiClient::setEnv(ClientEnvironment *env)
 {
 	ScriptApiBase::setEnv(env);

src/script/cpp_api/s_client.h

@@ -21,8 +21,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #ifndef S_CLIENT_H_
 #define S_CLIENT_H_
 
+#include "util/pointedthing.h"
 #include "cpp_api/s_base.h"
 #include "mapnode.h"
+#include "itemdef.h"
 #include "util/string.h"
 
 #ifdef _CRT_MSVCP_CURRENT
@@ -51,6 +53,7 @@ public:
 
 	bool on_dignode(v3s16 p, MapNode node);
 	bool on_punchnode(v3s16 p, MapNode node);
+	bool on_placenode(const PointedThing &pointed, const ItemDefinition &item);
 
 	void setEnv(ClientEnvironment *env);
 };

src/script/cpp_api/s_entity.cpp

@@ -57,7 +57,7 @@ bool ScriptApiEntity::luaentity_Add(u16 id, const char *name)
 
 	// Add object reference
 	// This should be userdata with metatable ObjectRef
-	objectrefGet(L, id);
+	push_objectRef(L, id);
 	luaL_checktype(L, -1, LUA_TUSERDATA);
 	if (!luaL_checkudata(L, -1, "ObjectRef"))
 		luaL_typerror(L, -1, "ObjectRef");

src/script/cpp_api/s_item.cpp

@@ -249,27 +249,6 @@ void ScriptApiItem::pushPointedThing(const PointedThing& pointed)
 {
 	lua_State* L = getStack();
 
-	lua_newtable(L);
-	if(pointed.type == POINTEDTHING_NODE)
-	{
-		lua_pushstring(L, "node");
-		lua_setfield(L, -2, "type");
-		push_v3s16(L, pointed.node_undersurface);
-		lua_setfield(L, -2, "under");
-		push_v3s16(L, pointed.node_abovesurface);
-		lua_setfield(L, -2, "above");
-	}
-	else if(pointed.type == POINTEDTHING_OBJECT)
-	{
-		lua_pushstring(L, "object");
-		lua_setfield(L, -2, "type");
-		objectrefGet(L, pointed.object_id);
-		lua_setfield(L, -2, "ref");
-	}
-	else
-	{
-		lua_pushstring(L, "nothing");
-		lua_setfield(L, -2, "type");
-	}
+	push_pointed_thing(L, pointed);
 }