//sculptlist: fix bugs. It works!

worldeditadditions/init.lua

@@ -57,7 +57,7 @@ dofile(wea.modpath.."/lib/spiral_circle.lua")
 dofile(wea.modpath.."/lib/conv/conv.lua")
 dofile(wea.modpath.."/lib/erode/erode.lua")
 dofile(wea.modpath.."/lib/noise/init.lua")
-dofile(wea.modpath.."/lib/sculpt/init.lua")
+wea.sculpt = dofile(wea.modpath.."/lib/sculpt/init.lua")
 
 dofile(wea.modpath.."/lib/copy.lua")
 dofile(wea.modpath.."/lib/move.lua")

worldeditadditions/lib/sculpt/brushes/__smooth.lua

@@ -1,6 +1,7 @@
+local wea = worldeditadditions
 
 --- Returns a smooth gaussian brush.
--- @param	size	Vector3		The target size of the brush. Note that the actual size fo the brush will be different, as the gaussian function has some limitations.
+-- @param	size	Vector3		The target size of the brush. Note that the actual size of the brush will be different, as the gaussian function has some limitations.
 -- @param	sigma=2	number		The 'smoothness' of the brush. Higher values are more smooth.
 return function(size, sigma)
 	local size = math.min(size.x, size.y)
@@ -9,5 +10,13 @@ return function(size, sigma)
 		return false, "Error: Invalid brush size."
 	end
 	local success, gaussian = worldeditadditions.conv.kernel_gaussian(size, sigma)
+	
+	-- Normalise values to fill the range 0 - 1
+	-- By default, wea.conv.kernel_gaussian values add up to 1 in total
+	local max = wea.max(gaussian)
+	for i=0,size*size-1 do
+		gaussian[i] = gaussian[i] / max
+	end
+	
 	return success, gaussian, { x = size, y = size }
 end

worldeditadditions/lib/sculpt/brushes/default_hard.lua

@@ -3,6 +3,6 @@ local wea = worldeditadditions
 local __smooth = dofile(wea.modpath.."/lib/sculpt/brushes/__smooth.lua")
 
 return function(size)
-	local success, brush, size_actual = __smooth(size, 1)
+	local success, brush, size_actual = __smooth(size, 1.25)
 	return success, brush, size_actual
 end

worldeditadditions/lib/sculpt/brushes/default_soft.lua

@@ -3,6 +3,6 @@ local wea = worldeditadditions
 local __smooth = dofile(wea.modpath.."/lib/sculpt/brushes/__smooth.lua")
 
 return function(size)
-	local success, brush, size_actual = __smooth(size, 5)
+	local success, brush, size_actual = __smooth(size, 3)
 	return success, brush, size_actual
 end

worldeditadditions/lib/sculpt/init.lua

@@ -13,6 +13,8 @@ local sculpt = {
 	apply = dofile(wea.modpath.."/lib/sculpt/apply.lua")
 }
 
+return sculpt
+
 -- TODO: Automatically find & register all text file based brushes in the brushes directory
 
 -- TODO: Implement automatic scaling of static brushes to the correct size. We have ..scale already, but we probably need to implement a proper 2d canvas scaling algorithm. Some options to consider: linear < [bi]cubic < nohalo/lohalo

worldeditadditions/lib/sculpt/preview_brush.lua

@@ -22,15 +22,17 @@ local function preview_brush(brush_name, target_size)
 	values["."] = 1
 	values[" "] = 0
 	
+	print(wea.inspect(brush))
+	
 	local result = {}
-	for z = target_size.z, 0, -1 do
+	for y = brush_size.y-1, 0, -1 do
 		local row = {}
-		for x = target_size.x, 0, -1 do
-			local i = z*brush_size.x + x
+		for x = brush_size.x-1, 0, -1 do
+			local i = y*brush_size.x + x
 			local pixel = " "
 			local threshold_cur = -1
 			for value,threshold in pairs(values) do
-				if brush[i] > threshold and threshold_cur < threshold then
+				if brush[i] * 10 > threshold and threshold_cur < threshold then
 					pixel = value
 					threshold_cur = threshold
 				end
@@ -39,8 +41,8 @@ local function preview_brush(brush_name, target_size)
 		end
 		table.insert(result, table.concat(row))
 	end
-	
-	return true, table.concat(result)
+	print("RESULT", wea.inspect(result))
+	return true, table.concat(result, "\n")
 end
 
 return preview_brush

worldeditadditions/utils/numbers.lua

@@ -33,7 +33,7 @@ end
 function worldeditadditions.min(list)
 	if #list == 0 then return nil end
 	local min = nil
-	for i,value in ipairs(list) do
+	for i,value in pairs(list) do
 		if min == nil or min > value then
 			min = value
 		end
@@ -46,8 +46,11 @@ end
 -- @returns	number	The maximum value in the given list.
 function worldeditadditions.max(list)
 	if #list == 0 then return nil end
+	-- We use pairs() instead of ipairs() here, because then we can support
+	-- zero-indexed 1D heightmaps too - and we don't care that the order is
+	-- undefined with pairs().
 	local max = nil
-	for i,value in ipairs(list) do
+	for i,value in pairs(list) do
 		if max == nil or max < value then
 			max = value
 		end

worldeditadditions_commands/commands/extra/sculptlist.lua

@@ -20,13 +20,16 @@ minetest.register_chatcommand("/sculptlist", {
 		
 		if params_text == "preview" then
 			for brush_name, brush_def in pairs(wea.sculpt.brushes) do
-				local preview = wea.sculpt.preview_brush(brush_name)
+				local success, preview = wea.sculpt.preview_brush(brush_name)
 				
 				local brush_size = "dynamic"
-				if type(brush_size) ~= "function" then
+				if type(brush_def) ~= "function" then
 					brush_size = brush_def.size
 				end
 				
+				print("//sculptlist: preview for "..brush_name..":")
+				print(preview)
+				
 				table.insert(msg, brush_name.." ["..brush_size.."]:\n")
 				table.insert(msg, preview.."\n\n")
 			end
@@ -34,7 +37,7 @@ minetest.register_chatcommand("/sculptlist", {
 			local display = { { "Name", "Native Size" } }
 			for brush_name, brush_def in pairs(wea.sculpt.brushes) do
 				local brush_size = "dynamic"
-				if type(brush_size) ~= "function" then
+				if type(brush_def) ~= "function" then
 					brush_size = brush_def.size
 				end