Bug fix (falling nodes)

Without this fix falling nodes (e.g. sand) do not work correctly. For example, placing sand on top of water the sand will drop and disappear.

falling_ice.lua

@@ -63,7 +63,7 @@ minetest.register_entity("caverealms:falling_ice", {
 			if obj:is_player() then
 				obj:set_hp(obj:get_hp() - 8)
 			end
-		end	
+		end
 		-- Note: walkable is in the node definition, not in item groups
 		if not bcd or
 				(bcd.walkable or
@@ -103,19 +103,19 @@ minetest.register_entity("caverealms:falling_ice", {
 			-- remove entity
 			--minetest.add_node(np, self.node)
 			self.object:remove()
-			nodeupdate(np)
+			caverealms:nodeupdate(np)
 		else
 			-- Do nothing
 		end
 	end
 })
 
-function spawn_falling_node(p, node)
+function caverealms:spawn_falling_node(p, node)
 	obj = minetest.add_entity(p, "caverealms:falling_ice")
 	obj:get_luaentity():set_node(node)
 end
 
-function drop_attached_node(p)
+function caverealms:drop_attached_node(p)
 	local nn = minetest.get_node(p).name
 	minetest.remove_node(p)
 	for _,item in ipairs(minetest.get_node_drops(nn, "")) do
@@ -128,7 +128,7 @@ function drop_attached_node(p)
 	end
 end
 
-function check_attached_node(p, n)
+function caverealms:check_attached_node(p, n)
 	local def = minetest.registered_nodes[n.name]
 	local d = {x=0, y=0, z=0}
 	if def.paramtype2 == "wallmounted" then
@@ -161,7 +161,7 @@ end
 -- Some common functions
 --
 
-function nodeupdate_single(p, delay)
+function caverealms:nodeupdate_single(p, delay)
 	n = minetest.get_node(p)
 	if minetest.get_item_group(n.name, "falling_node") ~= 0 then
 		p_bottom = {x=p.x, y=p.y-1, z=p.z}
@@ -175,25 +175,25 @@ function nodeupdate_single(p, delay)
 				(not minetest.registered_nodes[n_bottom.name].walkable or
 					minetest.registered_nodes[n_bottom.name].buildable_to) then
 			if delay then
-				minetest.after(0.1, nodeupdate_single, {x=p.x, y=p.y, z=p.z}, false)
+				minetest.after(0.1, caverealms.nodeupdate_single, {x=p.x, y=p.y, z=p.z}, false)
 			else
 				n.level = minetest.env:get_node_level(p)
 				minetest.remove_node(p)
-				spawn_falling_node(p, n)
+				caverealms:spawn_falling_node(p, n)
-				nodeupdate(p)
+				caverealms:nodeupdate(p)
 			end
 		end
 	end
 
 	if minetest.get_item_group(n.name, "attached_node") ~= 0 then
 		if not check_attached_node(p, n) then
-			drop_attached_node(p)
+			caverealms:drop_attached_node(p)
-			nodeupdate(p)
+			caverealms:nodeupdate(p)
 		end
 	end
 end
 
-function nodeupdate(p, delay)
+function caverealms:nodeupdate(p, delay)
 	-- Round p to prevent falling entities to get stuck
 	p.x = math.floor(p.x+0.5)
 	p.y = math.floor(p.y+0.5)
@@ -202,7 +202,7 @@ function nodeupdate(p, delay)
 	for x = -1,1 do
 	for y = -1,1 do
 	for z = -1,1 do
-		nodeupdate_single({x=p.x+x, y=p.y+y, z=p.z+z}, delay or not (x==0 and y==0 and z==0))
+		caverealms:nodeupdate_single({x=p.x+x, y=p.y+y, z=p.z+z}, delay or not (x==0 and y==0 and z==0))
 	end
 	end
 	end

init.lua

@@ -90,13 +90,13 @@ minetest.register_on_generated(function(minp, maxp, seed)
 	local x0 = minp.x
 	local y0 = minp.y
 	local z0 = minp.z
-	
+
 	print ("[caverealms] chunk minp ("..x0.." "..y0.." "..z0..")") --tell people you are generating a chunk
-	
+
 	local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
 	local area = VoxelArea:new{MinEdge=emin, MaxEdge=emax}
 	local data = vm:get_data()
-	
+
 	--grab content IDs
 	local c_air = minetest.get_content_id("air")
 	local c_stone = minetest.get_content_id("default:stone")
@@ -118,21 +118,21 @@ minetest.register_on_generated(function(minp, maxp, seed)
 	local c_worm = minetest.get_content_id("caverealms:glow_worm")
 	local c_iciu = minetest.get_content_id("caverealms:icicle_up")
 	local c_icid = minetest.get_content_id("caverealms:icicle_down")
-	
+
 	--mandatory values
 	local sidelen = x1 - x0 + 1 --length of a mapblock
 	local chulens = {x=sidelen, y=sidelen, z=sidelen} --table of chunk edges
 	local minposxyz = {x=x0, y=y0, z=z0} --bottom corner
 	local minposxz = {x=x0, y=z0} --2D bottom corner
-	
+
 	local nvals_cave = minetest.get_perlin_map(np_cave, chulens):get3dMap_flat(minposxyz) --cave noise for structure
 	local nvals_wave = minetest.get_perlin_map(np_wave, chulens):get3dMap_flat(minposxyz) --wavy structure of cavern ceilings and floors
 	local nvals_biome = minetest.get_perlin_map(np_biome, chulens):get2dMap_flat({x=x0+150, y=z0+50}) --2D noise for biomes (will be 3D humidity/temp later)
-	
+
 	local nixyz = 1 --3D node index
 	local nixz = 1 --2D node index
 	local nixyz2 = 1 --second 3D index for second loop
-	
+
 	for z = z0, z1 do -- for each xy plane progressing northwards
 		--structure loop
 		for y = y0, y1 do -- for each x row progressing upwards
@@ -155,7 +155,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
 				vi = vi + 1
 			end
 		end
-		
+
 		--decoration loop
 		for y = y0, y1 do -- for each x row progressing upwards
 			local tcave --same as above
@@ -168,7 +168,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
 			end
 			local vi = area:index(x0, y, z)
 			for x = x0, x1 do -- for each node do
-				
+
 				--determine biome
 				local biome = false --preliminary declaration
 				n_biome = nvals_biome[nixz] --make an easier reference to the noise
@@ -186,7 +186,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
 				else
 					biome = 3 --algae
 				end
-				
+
 				if math.floor(((nvals_cave[nixyz2] + nvals_wave[nixyz2])/2)*100) == math.floor(tcave*100) then
 					--ceiling
 					local ai = area:index(x,y+1,z) --above index
@@ -259,7 +259,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
 								data[ai] = c_iciu
 							end
 						end
-						
+
 						if math.random() < STAGCHA then
 							caverealms:stalagmite(x,y,z, area, data)
 						end
@@ -267,7 +267,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
 							caverealms:crystal_stalagmite(x,y,z, area, data, biome)
 						end
 					end
-					
+
 				end
 				nixyz2 = nixyz2 + 1
 				nixz = nixz + 1
@@ -277,7 +277,7 @@ minetest.register_on_generated(function(minp, maxp, seed)
 		end
 		nixz = nixz + sidelen --shift the 2D index up a layer
 	end
-	
+
 	--send data back to voxelmanip
 	vm:set_data(data)
 	--calc lighting
@@ -289,3 +289,6 @@ minetest.register_on_generated(function(minp, maxp, seed)
 	local chugent = math.ceil((os.clock() - t1) * 1000) --grab how long it took
 	print ("[caverealms] "..chugent.." ms") --tell people how long
 end)
+
+
+print("[caverealms] loaded!")