Strat work on a far-reaching wand, but it isn't finished yet.

We've got all the backend functions we'll probably need implemented 
though!

worldeditadditions/init.lua

@@ -11,6 +11,7 @@ dofile(worldeditadditions.modpath.."/utils/strings.lua")
 dofile(worldeditadditions.modpath.."/utils/numbers.lua")
 dofile(worldeditadditions.modpath.."/utils/nodes.lua")
 dofile(worldeditadditions.modpath.."/utils/tables.lua")
+dofile(worldeditadditions.modpath.."/utils/raycast_adv.lua") -- For the farwand
 
 dofile(worldeditadditions.modpath.."/utils.lua")
 dofile(worldeditadditions.modpath.."/lib/floodfill.lua")

worldeditadditions/utils/nodes.lua

@@ -42,13 +42,13 @@ function worldeditadditions.is_airlike(id)
 		return false
 	end
 	
-	local name = minetest.get_name_from_content_id(id)
 	-- If the node isn't registered, then it might not be an air node
 	if not minetest.registered_nodes[id] then return false end
 	if minetest.registered_nodes[id].sunlight_propagates == true then
 		return true
 	end
 	-- Check for membership of the airlike group
+	local name = minetest.get_name_from_content_id(id)
 	local airlike_value = minetest.get_item_group(name, "airlike")
 	if airlike_value ~= nil and airlike_value > 0 then
 		return true
@@ -61,6 +61,20 @@ function worldeditadditions.is_airlike(id)
 	return false
 end
 
+--- Determines whether the given node/content id is a liquid-ish node or not.
+-- @param	id		number	The content/node id to check.
+-- @return	bool	Whether the given node/content id is a liquid-ish node or not.
+function worldeditadditions.is_liquidlike(id)
+	if id == node_id_ignore then return false end
+	if not minetest.registered_nodes[id] then return  false end
+	
+	local liquidtype = minetest.registered_nodes[id].liquidtype
+	
+	if liquidtype == nil or liquidtype == "none" then return false end
+	-- If it's not none, then it has to be a liquid as the only other values are source and flowing
+	return true
+end
+
 --- Given a manip object and associates, generates a 2D x/z heightmap.
 -- Note that pos1 and pos2 should have already been pushed through
 -- worldedit.sort_pos(pos1, pos2) before passing them to this function.

worldeditadditions/utils/raycast_adv.lua

@@ -0,0 +1,47 @@
+
+--- Raycasts to find a node in the direction the given player is looking.
+-- @param	player			Player	The player object to raycast from.
+-- @param	maxdist			number	The maximum distance to raycast.
+-- @param	skip_liquid		bool	Whether to skip liquids when raycasting.
+-- @return	position, number		nil if nothing was found (or unloaded chunks were hit), or the position as an {x, y, z} table and the node id if something was found.
+function worldeditadditions.raycast(player, maxdist, skip_liquid)
+	if maxdist == nil then maxdist = 100 end
+	if skip_liquid == nil then skip_liquid = false end
+	local look_dir = player:get_look_dir()
+	
+	local node_id_ignore = minetest.get_content_id("ignore")
+	local cur_pos = {}
+	local player_pos = player:getpos()
+	player_pos.y = player_pos.y + 1.5 -- Calculate from the eye position
+	
+	for i = 1, maxdist do
+		local j = i / 10
+		
+		cur_pos.x = (look_dir.x*j) + player_pos.x
+		cur_pos.y = (look_dir.y*j) + player_pos.y
+		cur_pos.z = (look_dir.z*j) + player_pos.z
+		
+		local found_node = false
+		
+		local node = minetest.get_node_or_nil(cur_pos)
+		if node ~= nil then
+			local node_id = minetest.get_content_id(node.name)
+			local is_air = worldeditadditions.is_airlike(node_id)
+			
+			-- ignore = unloaded chunks, as far as I can tell
+			if node_id == node_id_ignore then
+				return nil
+			end
+			
+			if is_air == false then
+				if skip_liquid == true then
+					return cur_pos, node_id
+				elseif worldeditadditions.is_liquidlike(node_id) == true then
+					return cur_pos, node_id
+				end
+			end
+		end
+	end
+	
+	return nil
+end

worldeditadditions_farwand/depends.txt

@@ -0,0 +1,2 @@
+worldedit
+worldeditadditions

worldeditadditions_farwand/edit/worldedit_wand.piskel

@@ -0,0 +1 @@
+{"modelVersion":2,"piskel":{"name":"worldedit_wand","description":"","fps":0,"height":16,"width":16,"layers":["{\"name\":\"Layer 1\",\"opacity\":1,\"frameCount\":3,\"chunks\":[{\"layout\":[[0],[1],[2]],\"base64PNG\":\"data:image/png;base64,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\"}]}"]}}

worldeditadditions_farwand/init.lua

@@ -0,0 +1,3 @@
+local modpath = minetest.get_modpath("worldeditadditions_farwand")
+
+dofile(modpath.."/lib/farwand.lua")

worldeditadditions_farwand/lib/farwand.lua

@@ -0,0 +1,20 @@
+minetest.register_tool(":worldeditadditions:farwand", {
+	description = "WorldEditAdditions far-reaching wand",
+	inventory_image = "worldeditadditions_farwand.png",
+	
+	on_place = function(itemstack, player, pointed_thing)
+		print("[farwand] on_place", player:get_player_name())
+		-- Right click when pointing at something
+	end,
+	
+	on_use = function(itemstack, player, pointed_thing)
+		print("[farwand] on_use", player:get_player_name())
+		-- Left click when pointing at something or nothing
+	end,
+	
+	on_secondary_use = function(itemstack, player, pointed_thing)
+		-- Right click when pointing at nothing
+		
+		print("[farwand] on_secondary_use", player:get_player_name())
+	end
+})