Added Readme and License file, minimum depth can now be configured, g…

…unpowder cannot be lighted above that minimum depth so players are not annoyed.

LICENSE

@@ -0,0 +1,3 @@
+Sounds: alarm.ogg
+ Source: https://commons.wikimedia.org/wiki/File:BABS_-_Allgemeiner_Alarm.ogg
+ License: Public domain

README.txt

@@ -0,0 +1,37 @@
+Minetest Game mod: tnt
+======================
+by PilzAdam and ShadowNinja
+
+Introduction:
+This mod adds TNT to Minetest. TNT is a tool to help the player
+in mining.
+
+How to use the mod:
+Craft gunpowder by placing coal and gravel in the crafting area. The
+gunpowder can be used to craft TNT or as fuze for TNT. To craft TNT
+surround gunpowder with 4 wood in a + shape.
+There are different ways to blow up TNT:
+  1. Hit it with a torch.
+  2. Hit a gunpowder fuze that leads to a TNT block with a torch.
+  3. Activate it with mesecons (fastest way)
+Be aware of the damage radius of 7 blocks!
+
+License:
+WTFPL (see below)
+
+See also:
+http://minetest.net/
+
+         DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                    Version 2, December 2004
+
+ Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+
+ Everyone is permitted to copy and distribute verbatim or modified
+ copies of this license document, and changing it is allowed as long
+ as the name is changed.
+
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. You just DO WHAT THE FUCK YOU WANT TO.

init.lua

@@ -3,6 +3,8 @@ tnt = {}
 local singleplayer = minetest.is_singleplayer()
 local setting = minetest.setting_getbool("enable_tnt")
 setting = true -- this mod is multiplayer-safe, so enable it.
+local tntmindepth = tonumber(minetest.setting_get("tnt_mindepth")) or -100
+
 if (not singleplayer and setting ~= true) or
 		(singleplayer and setting == false) then
 	return
@@ -364,8 +366,8 @@ local function tnt_explode(pos, radius, ignore_protection, ignore_on_blast)
 end
 
 function tnt.boom(pos, def)
-        if pos.y > -100 then
---	   minetest.chat_send_all("TNT can only explode when deeper than -100")
+        if pos.y > tntmindepth then
+--	   check if we're deep enough
 	   minetest.set_node(pos, {name = "tnt:tnt"})
 	   return
 	end
@@ -417,9 +419,10 @@ minetest.register_node("tnt:gunpowder", {
 	sounds = default.node_sound_leaves_defaults(),
 
 	on_punch = function(pos, node, puncher)
-		if puncher:get_wielded_item():get_name() == "default:torch" then
-			tnt.burn(pos)
-		end
+	   if puncher:get_wielded_item():get_name() == "default:torch" and pos.y < (tntmindepth + 16)then
+	      -- check if we're deep enough, don't annoy people with the air-raid sound.
+	      tnt.burn(pos)
+	   end
 	end,
 	on_blast = function(pos, intensity)
 		tnt.burn(pos)