Remove unused light updating code

Also remove the unit test that tests the removed algorithms.

1 files changed, 0 insertions, 130 deletions

diff --git a/src/voxelalgorithms.cpp b/src/voxelalgorithms.cpp
index 250a57cb2..bcf2b9a38 100644
--- a/src/voxelalgorithms.cpp
+++ b/src/voxelalgorithms.cpp
@@ -25,136 +25,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 namespace voxalgo
 {
 
-void setLight(VoxelManipulator &v, VoxelArea a, u8 light,
-		INodeDefManager *ndef)
-{
-	for(s32 x=a.MinEdge.X; x<=a.MaxEdge.X; x++)
-	for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
-	for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
-	{
-		v3s16 p(x,y,z);
-		MapNode &n = v.getNodeRefUnsafe(p);
-		n.setLight(LIGHTBANK_DAY, light, ndef);
-		n.setLight(LIGHTBANK_NIGHT, light, ndef);
-	}
-}
-
-void clearLightAndCollectSources(VoxelManipulator &v, VoxelArea a,
-		enum LightBank bank, INodeDefManager *ndef,
-		std::set<v3s16> & light_sources,
-		std::map<v3s16, u8> & unlight_from)
-{
-	// The full area we shall touch
-	VoxelArea required_a = a;
-	required_a.pad(v3s16(0,0,0));
-	// Make sure we have access to it
-	v.addArea(a);
-
-	for(s32 x=a.MinEdge.X; x<=a.MaxEdge.X; x++)
-	for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
-	for(s32 y=a.MinEdge.Y; y<=a.MaxEdge.Y; y++)
-	{
-		v3s16 p(x,y,z);
-		MapNode &n = v.getNodeRefUnsafe(p);
-		u8 oldlight = n.getLight(bank, ndef);
-		n.setLight(bank, 0, ndef);
-
-		// If node sources light, add to list
-		u8 source = ndef->get(n).light_source;
-		if(source != 0)
-			light_sources.insert(p);
-
-		// Collect borders for unlighting
-		if((x==a.MinEdge.X || x == a.MaxEdge.X
-		|| y==a.MinEdge.Y || y == a.MaxEdge.Y
-		|| z==a.MinEdge.Z || z == a.MaxEdge.Z)
-		&& oldlight != 0)
-		{
-			unlight_from[p] = oldlight;
-		}
-	}
-}
-
-SunlightPropagateResult propagateSunlight(VoxelManipulator &v, VoxelArea a,
-		bool inexistent_top_provides_sunlight,
-		std::set<v3s16> & light_sources,
-		INodeDefManager *ndef)
-{
-	// Return values
-	bool bottom_sunlight_valid = true;
-
-	// The full area we shall touch extends one extra at top and bottom
-	VoxelArea required_a = a;
-	required_a.pad(v3s16(0,1,0));
-	// Make sure we have access to it
-	v.addArea(a);
-
-	s16 max_y = a.MaxEdge.Y;
-	s16 min_y = a.MinEdge.Y;
-
-	for(s32 x=a.MinEdge.X; x<=a.MaxEdge.X; x++)
-	for(s32 z=a.MinEdge.Z; z<=a.MaxEdge.Z; z++)
-	{
-		v3s16 p_overtop(x, max_y+1, z);
-		bool overtop_has_sunlight = false;
-		// If overtop node does not exist, trust heuristics
-		if(!v.exists(p_overtop))
-			overtop_has_sunlight = inexistent_top_provides_sunlight;
-		else if(v.getNodeRefUnsafe(p_overtop).getContent() == CONTENT_IGNORE)
-			overtop_has_sunlight = inexistent_top_provides_sunlight;
-		// Otherwise refer to it's light value
-		else
-			overtop_has_sunlight = (v.getNodeRefUnsafe(p_overtop).getLight(
-					LIGHTBANK_DAY, ndef) == LIGHT_SUN);
-
-		// Copy overtop's sunlight all over the place
-		u8 incoming_light = overtop_has_sunlight ? LIGHT_SUN : 0;
-		for(s32 y=max_y; y>=min_y; y--)
-		{
-			v3s16 p(x,y,z);
-			MapNode &n = v.getNodeRefUnsafe(p);
-			if(incoming_light == 0){
-				// Do nothing
-			} else if(incoming_light == LIGHT_SUN &&
-					ndef->get(n).sunlight_propagates){
-				// Do nothing
-			} else if(!ndef->get(n).sunlight_propagates){
-				incoming_light = 0;
-			} else {
-				incoming_light = diminish_light(incoming_light);
-			}
-			u8 old_light = n.getLight(LIGHTBANK_DAY, ndef);
-
-			if(incoming_light > old_light)
-				n.setLight(LIGHTBANK_DAY, incoming_light, ndef);
-
-			if(diminish_light(incoming_light) != 0)
-				light_sources.insert(p);
-		}
-
-		// Check validity of sunlight at top of block below if it
-		// hasn't already been proven invalid
-		if(bottom_sunlight_valid)
-		{
-			bool sunlight_should_continue_down = (incoming_light == LIGHT_SUN);
-			v3s16 p_overbottom(x, min_y-1, z);
-			if(!v.exists(p_overbottom) ||
-					v.getNodeRefUnsafe(p_overbottom
-							).getContent() == CONTENT_IGNORE){
-				// Is not known, cannot compare
-			} else {
-				bool overbottom_has_sunlight = (v.getNodeRefUnsafe(p_overbottom
-						).getLight(LIGHTBANK_DAY, ndef) == LIGHT_SUN);
-				if(sunlight_should_continue_down != overbottom_has_sunlight){
-					bottom_sunlight_valid = false;
-				}
-			}
-		}
-	}
-
-	return {bottom_sunlight_valid};
-}
-
 /*!
  * A direction.
  * 0=X+