LuaVoxelManip: Add option to allocate blank data

3 files changed, 28 insertions, 1 deletions

diff --git a/src/script/lua_api/l_env.cpp b/src/script/lua_api/l_env.cpp
index 3d2e20424..9e713b9b8 100644
--- a/src/script/lua_api/l_env.cpp
+++ b/src/script/lua_api/l_env.cpp
@@ -638,6 +638,13 @@ int ModApiEnvMod::l_get_voxel_manip(lua_State *L)
 	Map *map = &(env->getMap());
 	LuaVoxelManip *o = new LuaVoxelManip(map);
 
+	if (lua_istable(L, 1) && lua_istable(L, 2)) {
+		v3s16 p1 = getNodeBlockPos(read_v3s16(L, 1));
+		v3s16 p2 = getNodeBlockPos(read_v3s16(L, 2));
+		sortBoxVerticies(p1, p2);
+		o->vm->initializeBlank(p1, p2);
+	}
+
 	*(void **)(lua_newuserdata(L, sizeof(void *))) = o;
 	luaL_getmetatable(L, "VoxelManip");
 	lua_setmetatable(L, -2);
diff --git a/src/script/lua_api/l_vmanip.cpp b/src/script/lua_api/l_vmanip.cpp
index 554a57343..fb52aa21a 100644
--- a/src/script/lua_api/l_vmanip.cpp
+++ b/src/script/lua_api/l_vmanip.cpp
@@ -345,6 +345,16 @@ int LuaVoxelManip::l_was_modified(lua_State *L)
 	return 1;
 }
 
+int LuaVoxelManip::l_get_emerged_area(lua_State *L)
+{
+	LuaVoxelManip *o = checkobject(L, 1);
+
+	push_v3s16(L, o->vm->m_area.MinEdge);
+	push_v3s16(L, o->vm->m_area.MaxEdge);
+
+	return 2;
+}
+
 LuaVoxelManip::LuaVoxelManip(ManualMapVoxelManipulator *mmvm, bool is_mg_vm)
 {
 	this->vm           = mmvm;
@@ -376,6 +386,13 @@ int LuaVoxelManip::create_object(lua_State *L)
 	Map *map = &(env->getMap());
 	LuaVoxelManip *o = new LuaVoxelManip(map);
 
+	if (lua_istable(L, 1) && lua_istable(L, 2)) {
+		v3s16 p1 = getNodeBlockPos(read_v3s16(L, 1));
+		v3s16 p2 = getNodeBlockPos(read_v3s16(L, 2));
+		sortBoxVerticies(p1, p2);
+		o->vm->initializeBlank(p1, p2);
+	}
+
 	*(void **)(lua_newuserdata(L, sizeof(void *))) = o;
 	luaL_getmetatable(L, className);
 	lua_setmetatable(L, -2);
@@ -440,5 +457,6 @@ const luaL_reg LuaVoxelManip::methods[] = {
 	luamethod(LuaVoxelManip, get_param2_data),
 	luamethod(LuaVoxelManip, set_param2_data),
 	luamethod(LuaVoxelManip, was_modified),
+	luamethod(LuaVoxelManip, get_emerged_area),
 	{0,0}
 };
diff --git a/src/script/lua_api/l_vmanip.h b/src/script/lua_api/l_vmanip.h
index 608b55556..ead6efbc4 100644
--- a/src/script/lua_api/l_vmanip.h
+++ b/src/script/lua_api/l_vmanip.h
@@ -33,7 +33,6 @@ class ManualMapVoxelManipulator;
  */
 class LuaVoxelManip : public ModApiBase {
 private:
-	ManualMapVoxelManipulator *vm;
 	std::map<v3s16, MapBlock *> modified_blocks;
 	bool is_mapgen_vm;
 
@@ -62,8 +61,11 @@ private:
 	static int l_set_param2_data(lua_State *L);
 
 	static int l_was_modified(lua_State *L);
+	static int l_get_emerged_area(lua_State *L);
 
 public:
+	ManualMapVoxelManipulator *vm;
+
 	LuaVoxelManip(ManualMapVoxelManipulator *mmvm, bool is_mapgen_vm);
 	LuaVoxelManip(Map *map);
 	~LuaVoxelManip();