Implement propagateSunlight for VoxelManipulator

1 files changed, 50 insertions, 0 deletions

diff --git a/src/voxelalgorithms.h b/src/voxelalgorithms.h
new file mode 100644
index 000000000..3dea233dc
--- /dev/null
+++ b/src/voxelalgorithms.h
@@ -0,0 +1,50 @@
+/*
+Minetest-c55
+Copyright (C) 2010-2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef VOXELALGORITHMS_HEADER
+#define VOXELALGORITHMS_HEADER
+
+#include "voxel.h"
+
+namespace voxalgo
+{
+
+// TODO: Move unspreadLight and spreadLight from VoxelManipulator to here
+
+void setLight(VoxelManipulator &v, VoxelArea a, u8 light,
+		INodeDefManager *ndef);
+
+struct SunlightPropagateResult
+{
+	bool bottom_sunlight_valid;
+
+	SunlightPropagateResult(bool bottom_sunlight_valid_):
+		bottom_sunlight_valid(bottom_sunlight_valid_)
+	{}
+};
+
+SunlightPropagateResult propagateSunlight(VoxelManipulator &v, VoxelArea a,
+		bool inexistent_top_provides_sunlight,
+		core::map<v3s16, bool> & light_sources,
+		INodeDefManager *ndef);
+
+} // namespace voxalgo
+
+#endif
+