Move implementations of some LuaVoxelManip functions to l_mapgen

src/map.h

@@ -452,7 +452,7 @@ protected:
 	void reportMetrics(u64 save_time_us, u32 saved_blocks, u32 all_blocks) override;
 
 private:
-	friend class LuaVoxelManip;
+	friend class ModApiMapgen; // for m_transforming_liquid
 
 	// Emerge manager
 	EmergeManager *m_emerge;

src/script/lua_api/l_mapgen.cpp

@@ -1806,6 +1806,51 @@ int ModApiMapgen::l_read_schematic(lua_State *L)
 	return 1;
 }
 
+int ModApiMapgen::update_liquids(lua_State *L, MMVManip *vm)
+{
+	GET_ENV_PTR;
+
+	ServerMap *map = &(env->getServerMap());
+	const NodeDefManager *ndef = getServer(L)->getNodeDefManager();
+
+	Mapgen mg;
+	mg.vm   = vm;
+	mg.ndef = ndef;
+
+	mg.updateLiquid(&map->m_transforming_liquid,
+		vm->m_area.MinEdge, vm->m_area.MaxEdge);
+	return 0;
+}
+
+int ModApiMapgen::calc_lighting(lua_State *L, MMVManip *vm,
+		v3s16 pmin, v3s16 pmax, bool propagate_shadow)
+{
+	const NodeDefManager *ndef = getGameDef(L)->ndef();
+	EmergeManager *emerge = getServer(L)->getEmergeManager();
+
+	assert(vm->m_area.contains(VoxelArea(pmin, pmax)));
+
+	Mapgen mg;
+	mg.vm          = vm;
+	mg.ndef        = ndef;
+	mg.water_level = emerge->mgparams->water_level;
+
+	mg.calcLighting(pmin, pmax, vm->m_area.MinEdge, vm->m_area.MaxEdge,
+		propagate_shadow);
+	return 0;
+}
+
+int ModApiMapgen::set_lighting(lua_State *L, MMVManip *vm,
+		v3s16 pmin, v3s16 pmax, u8 light)
+{
+	assert(vm->m_area.contains(VoxelArea(pmin, pmax)));
+
+	Mapgen mg;
+	mg.vm = vm;
+
+	mg.setLighting(light, pmin, pmax);
+	return 0;
+}
 
 void ModApiMapgen::Initialize(lua_State *L, int top)
 {

src/script/lua_api/l_mapgen.h

@@ -20,11 +20,15 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #pragma once
 
 #include "lua_api/l_base.h"
+#include "irr_v3d.h"
 
 typedef u16 biome_t;  // copy from mg_biome.h to avoid an unnecessary include
 
+class MMVManip;
+
 class ModApiMapgen : public ModApiBase
 {
+	friend class LuaVoxelManip;
 private:
 	// get_biome_id(biomename)
 	// returns the biome id as used in biomemap and returned by 'get_biome_data()'
@@ -139,6 +143,21 @@ private:
 	// read_schematic(schematic, options={...})
 	static int l_read_schematic(lua_State *L);
 
+	// Foreign implementations
+	/*
+	 * In this case the API functions belong to LuaVoxelManip (so l_vmanip.cpp),
+	 * but the implementations are so deeply connected to mapgen-related code
+	 * that they are better off being here.
+	 */
+
+	static int update_liquids(lua_State *L, MMVManip *vm);
+
+	static int calc_lighting(lua_State *L, MMVManip *vm,
+			v3s16 pmin, v3s16 pmax, bool propagate_shadow);
+
+	static int set_lighting(lua_State *L, MMVManip *vm,
+			v3s16 pmin, v3s16 pmax, u8 light);
+
 public:
 	static void Initialize(lua_State *L, int top);
 

src/script/lua_api/l_vmanip.cpp

@@ -19,16 +19,15 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #include <map>
 #include "lua_api/l_vmanip.h"
+#include "lua_api/l_mapgen.h"
 #include "lua_api/l_internal.h"
 #include "common/c_content.h"
 #include "common/c_converter.h"
 #include "common/c_packer.h"
-#include "emerge.h"
 #include "environment.h"
 #include "map.h"
 #include "mapblock.h"
 #include "server.h"
-#include "mapgen/mapgen.h"
 #include "voxelalgorithms.h"
 
 // garbage collector
@@ -162,64 +161,36 @@ int LuaVoxelManip::l_set_node_at(lua_State *L)
 
 int LuaVoxelManip::l_update_liquids(lua_State *L)
 {
-	GET_ENV_PTR;
-
 	LuaVoxelManip *o = checkObject<LuaVoxelManip>(L, 1);
 
-	ServerMap *map = &(env->getServerMap());
-	const NodeDefManager *ndef = getServer(L)->getNodeDefManager();
-	MMVManip *vm = o->vm;
-
-	Mapgen mg;
-	mg.vm   = vm;
-	mg.ndef = ndef;
-
-	mg.updateLiquid(&map->m_transforming_liquid,
-			vm->m_area.MinEdge, vm->m_area.MaxEdge);
-
-	return 0;
+	return ModApiMapgen::update_liquids(L, o->vm);
 }
 
 int LuaVoxelManip::l_calc_lighting(lua_State *L)
 {
-	NO_MAP_LOCK_REQUIRED;
-
 	LuaVoxelManip *o = checkObject<LuaVoxelManip>(L, 1);
 	if (!o->is_mapgen_vm) {
-		warningstream << "VoxelManip:calc_lighting called for a non-mapgen "
-			"VoxelManip object" << std::endl;
+		log_deprecated(L, "calc_lighting called for a non-mapgen "
+			"VoxelManip object");
 		return 0;
 	}
 
-	const NodeDefManager *ndef = getServer(L)->getNodeDefManager();
-	EmergeManager *emerge = getServer(L)->getEmergeManager();
 	MMVManip *vm = o->vm;
 
 	v3s16 yblock = v3s16(0, 1, 0) * MAP_BLOCKSIZE;
-	v3s16 fpmin  = vm->m_area.MinEdge;
-	v3s16 fpmax  = vm->m_area.MaxEdge;
-	v3s16 pmin   = lua_istable(L, 2) ? check_v3s16(L, 2) : fpmin + yblock;
-	v3s16 pmax   = lua_istable(L, 3) ? check_v3s16(L, 3) : fpmax - yblock;
+	v3s16 pmin = lua_istable(L, 2) ? check_v3s16(L, 2) : vm->m_area.MinEdge + yblock;
+	v3s16 pmax = lua_istable(L, 3) ? check_v3s16(L, 3) : vm->m_area.MaxEdge - yblock;
 	bool propagate_shadow = !lua_isboolean(L, 4) || readParam<bool>(L, 4);
 
 	sortBoxVerticies(pmin, pmax);
 	if (!vm->m_area.contains(VoxelArea(pmin, pmax)))
 		throw LuaError("Specified voxel area out of VoxelManipulator bounds");
 
-	Mapgen mg;
-	mg.vm          = vm;
-	mg.ndef        = ndef;
-	mg.water_level = emerge->mgparams->water_level;
-
-	mg.calcLighting(pmin, pmax, fpmin, fpmax, propagate_shadow);
-
-	return 0;
+	return ModApiMapgen::calc_lighting(L, vm, pmin, pmax, propagate_shadow);
 }
 
 int LuaVoxelManip::l_set_lighting(lua_State *L)
 {
-	NO_MAP_LOCK_REQUIRED;
-
 	LuaVoxelManip *o = checkObject<LuaVoxelManip>(L, 1);
 	if (!o->is_mapgen_vm) {
 		warningstream << "VoxelManip:set_lighting called for a non-mapgen "
@@ -227,8 +198,7 @@ int LuaVoxelManip::l_set_lighting(lua_State *L)
 		return 0;
 	}
 
-	if (!lua_istable(L, 2))
-		throw LuaError("VoxelManip:set_lighting called with missing parameter");
+	luaL_checktype(L, 2, LUA_TTABLE);
 
 	u8 light;
 	light  = (getintfield_default(L, 2, "day",   0) & 0x0F);
@@ -244,12 +214,7 @@ int LuaVoxelManip::l_set_lighting(lua_State *L)
 	if (!vm->m_area.contains(VoxelArea(pmin, pmax)))
 		throw LuaError("Specified voxel area out of VoxelManipulator bounds");
 
-	Mapgen mg;
-	mg.vm = vm;
-
-	mg.setLighting(light, pmin, pmax);
-
-	return 0;
+	return ModApiMapgen::set_lighting(L, vm, pmin, pmax, light);
 }
 
 int LuaVoxelManip::l_get_light_data(lua_State *L)