Light calculation: New bulk node lighting code

This commit introduces a new bulk node lighting algorithm to minimize
lighting bugs during l-system tree generation, schematic placement and
non-mapgen-object lua voxelmanip light calculation.

If the block above the changed area is not loaded, it gets loaded to avoid
lighting bugs.
Light is updated as soon as write_to_map is called on a voxel manipulator,
therefore update_map does nothing.

1 files changed, 3 insertions, 7 deletions

diff --git a/src/mg_schematic.cpp b/src/mg_schematic.cpp
index 3d08d86fa..92e138df4 100644
--- a/src/mg_schematic.cpp
+++ b/src/mg_schematic.cpp
@@ -30,6 +30,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "util/serialize.h"
 #include "serialization.h"
 #include "filesys.h"
+#include "voxelalgorithms.h"
 
 ///////////////////////////////////////////////////////////////////////////////
 
@@ -202,7 +203,7 @@ bool Schematic::placeOnVManip(MMVManip *vm, v3s16 p, u32 flags,
 	return vm->m_area.contains(VoxelArea(p, p + s - v3s16(1,1,1)));
 }
 
-void Schematic::placeOnMap(Map *map, v3s16 p, u32 flags,
+void Schematic::placeOnMap(ServerMap *map, v3s16 p, u32 flags,
 	Rotation rot, bool force_place)
 {
 	std::map<v3s16, MapBlock *> lighting_modified_blocks;
@@ -238,15 +239,10 @@ void Schematic::placeOnMap(Map *map, v3s16 p, u32 flags,
 
 	blitToVManip(&vm, p, rot, force_place);
 
-	vm.blitBackAll(&modified_blocks);
+	voxalgo::blit_back_with_light(map, &vm, &modified_blocks);
 
 	//// Carry out post-map-modification actions
 
-	//// Update lighting
-	// TODO: Optimize this by using Mapgen::calcLighting() instead
-	lighting_modified_blocks.insert(modified_blocks.begin(), modified_blocks.end());
-	map->updateLighting(lighting_modified_blocks, modified_blocks);
-
 	//// Create & dispatch map modification events to observers
 	MapEditEvent event;
 	event.type = MEET_OTHER;