From 426f3b949fc48862f3b9b8368aa33147c805142b Mon Sep 17 00:00:00 2001
From: sfan5 <sfan5@live.de>
Date: Thu, 26 Jan 2017 22:26:45 +0100
Subject: [PATCH] Show light level a node receives with //inspect, fixes #128

---
 worldedit_commands/init.lua | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/worldedit_commands/init.lua b/worldedit_commands/init.lua
index d47c6e2..3532343 100644
--- a/worldedit_commands/init.lua
+++ b/worldedit_commands/init.lua
@@ -162,12 +162,28 @@ minetest.register_chatcommand("/inspect", {
 	end,
 })
 
+local function get_node_rlight(pos)
+	local vecs = { -- neighboring nodes
+		{x= 1, y= 0, z= 0},
+		{x=-1, y= 0, z= 0},
+		{x= 0, y= 1, z= 0},
+		{x= 0, y=-1, z= 0},
+		{x= 0, y= 0, z= 1},
+		{x= 0, y= 0, z=-1},
+	}
+	local ret = 0
+	for _, v in ipairs(vecs) do
+		ret = math.max(ret, minetest.get_node_light(vector.add(pos, v)))
+	end
+	return ret
+end
+
 minetest.register_on_punchnode(function(pos, node, puncher)
 	local name = puncher:get_player_name()
 	if worldedit.inspect[name] then
 		local axis, sign = worldedit.player_axis(name)
-		message = string.format("inspector: %s at %s (param1=%d, param2=%d, light=%d) punched facing the %s axis",
-			node.name, minetest.pos_to_string(pos), node.param1, node.param2, minetest.get_node_light(pos), axis .. (sign > 0 and "+" or "-"))
+		message = string.format("inspector: %s at %s (param1=%d, param2=%d, received light=%d) punched facing the %s axis",
+			node.name, minetest.pos_to_string(pos), node.param1, node.param2, get_node_rlight(pos), axis .. (sign > 0 and "+" or "-"))
 		worldedit.player_notify(name, message)
 	end
 end)