Reveal tool: also reveal places where blocks can be placed.

mods/nodes/init.lua

@@ -14,8 +14,12 @@ local function nm(s)
 	return ss:gsub("^%l", string.upper)
 end
 
+-- tilecache API
+nodes = {}
+
 local tilecache = {}
-local get_tiles = function(name)
+
+function nodes.get_tiles(name)
 	if tilecache[name] then
 		return tilecache[name]
 	else
@@ -154,18 +158,18 @@ local function placeholder_particles(pos)
 	if placeable == "" then
 		return false
 	end
-	local nodes =  minetest.parse_json(placeable)
+	local nodelist =  minetest.parse_json(placeable)
 	for _, obj in pairs(minetest.get_objects_inside_radius(pos, 3)) do
 		if obj:is_player() then
 			local pname = obj:get_player_name()
 			local itemstack = obj:get_wielded_item()
 			local name = itemstack:get_name()
-			if itemstack and nodes[name] then
+			if itemstack and nodelist[name] then
 				minetest.add_particle({
 					pos = pos,
 					expirationtime = 0.55,
 					size = 5,
-					texture = get_tiles(name),
+					texture = nodes.get_tiles(name),
 					glow = 14,
 					playername = pname,
 				})
@@ -208,7 +212,7 @@ minetest.register_node("nodes:placeholder", {
 -- [4] sounds
 -- [5] falling node
 
-local nodes = {
+local nodelist = {
 	{"bricks_clay", true, "pickaxe", sounds.stone},
 	{"bricks_limestone", true, "pickaxe", sounds.stone},
 	{"bricks_marble", true, "pickaxe", sounds.stone},
@@ -292,7 +296,7 @@ local function make_stair_slab(name, groups, b1, b2, snd, tex)
 	})
 end
 
-for _, v in pairs(nodes) do
+for _, v in pairs(nodelist) do
 	local groups = {node = 1}
 	if v[5] then
 		groups.falling_node = 1

mods/tools/depends.txt

@@ -1 +1,2 @@
 frame
+nodes

mods/tools/init.lua

@@ -455,7 +455,7 @@ minetest.register_tool("tools:grow", {
 frame.register("tools:grow")
 
 minetest.register_tool("tools:reveal", {
-	description = "Reveal breakable nodes",
+	description = "Reveal breakable nodes and Placeholder nodes",
 	inventory_image = "reveal_tool.png",
 	on_use = function(itemstack, digger, pointed_thing)
 		if not digger then
@@ -477,13 +477,6 @@ minetest.register_tool("tools:reveal", {
 			}
 		end
 
-		local ppos = vector.floor(digger:get_pos())
-		for x = math.max(ppos.x - 8, box.minp.x + 1),
-			math.min(ppos.x + 8, box.maxp.x - 1) do
-		for y = math.max(ppos.y - 8, box.minp.y + 1),
-			math.min(ppos.y + 8, box.maxp.y - 1) do
-		for z = math.max(ppos.z - 8, box.minp.z + 1),
-			math.min(ppos.z + 8, box.maxp.z - 1) do
 		local off = {
 			{ x = 0, y = 0, z = -9/16},
 			{ x = 0, y = 0, z =  9/16},
@@ -492,6 +485,14 @@ minetest.register_tool("tools:reveal", {
 			{ x = -9/16, y = 0, z = 0},
 			{ x =  9/16, y = 0, z = 0},
 		}
+
+		local ppos = vector.floor(digger:get_pos())
+		for x = math.max(ppos.x - 8, box.minp.x + 1),
+			math.min(ppos.x + 8, box.maxp.x - 1) do
+		for y = math.max(ppos.y - 8, box.minp.y + 1),
+			math.min(ppos.y + 8, box.maxp.y - 1) do
+		for z = math.max(ppos.z - 8, box.minp.z + 1),
+			math.min(ppos.z + 8, box.maxp.z - 1) do
 			local pos = vector.new(x, y, z)
 			local node = minetest.get_node(pos)
 			local groups = minetest.registered_nodes[node.name] and
@@ -520,6 +521,24 @@ minetest.register_tool("tools:reveal", {
 					})
 				end
 			end
+
+			if node.name == "nodes:placeholder" then
+				local meta = minetest.get_meta(pos)
+				local placeable = meta:get_string("placeable")
+				if placeable ~= "" then
+					local nodelist = minetest.parse_json(placeable)
+					--FIXME just do the first placeholder, only
+					local n, _ = next(nodelist)
+					minetest.add_particle({
+						pos = pos,
+						expirationtime = 8,
+						size = 3,
+						texture = nodes.get_tiles(n),
+						glow = 14,
+						playername = name,
+					})
+				end
+			end
 		end
 		end
 		end