Remove extra print() calls and copy Luacontroller's print behavior (#127)

autoplace_pipes.lua

@@ -211,7 +211,7 @@ function pipeworks.scan_pipe_surroundings(pos)
 		pzm = 1
 	end
 
-	print("stage 2 returns "..pxm+8*pxp+2*pym+16*pyp+4*pzm+32*pzp..
+	minetest.log("info", "stage 2 returns "..pxm+8*pxp+2*pym+16*pyp+4*pzm+32*pzp..
 		" for nodes surrounding "..minetest.get_node(pos).name.." at "..minetest.pos_to_string(pos))
 	return pxm+8*pxp+2*pym+16*pyp+4*pzm+32*pzp
 end

settingtypes.txt

@@ -87,3 +87,7 @@ pipeworks_entity_update_interval (Entity Update Interval) float 0 0 0.8
 
 # if set to true, items passing through teleport tubes will log log where they came from and where they went.
 pipeworks_log_teleport_tubes (Log Teleport Tubes) bool false
+
+# Behavior of print() inside a lua tube. By default, this emits a message into actionstream.
+# Set it to noop if you wish to disable that behavior.
+pipeworks_lua_tube_print_behavior (Behavior of print in Lua Tube) enum log log,noop

tubes/lua.lua

@@ -229,11 +229,13 @@ end
 -------------------------
 
 local function safe_print(param)
+	if (minetest.settings:get("pipeworks_lua_tube_print_behavior") or "log") == "log" then
 		local string_meta = getmetatable("")
 		local sandbox = string_meta.__index
 		string_meta.__index = string -- Leave string sandbox temporarily
-	print(dump(param))
+		minetest.log("action", string.format("[pipeworks.tubes.lua] print(%s)", dump(param)))
 		string_meta.__index = sandbox -- Restore string sandbox
+	end
 end
 
 local function safe_date()
@@ -603,7 +605,7 @@ local function save_memory(pos, meta, mem)
 		meta:set_string("lc_memory", memstring)
 		meta:mark_as_private("lc_memory")
 	else
-		print("Error: lua_tube memory overflow. "..memsize_max.." bytes available, "
+		minetest.log("info", "lua_tube memory overflow. "..memsize_max.." bytes available, "
 				..#memstring.." required. Controller overheats.")
 		burn_controller(pos)
 	end

wielder.lua

@@ -281,7 +281,6 @@ if pipeworks.enable_node_breaker then
 				-- Don't mechanically wear out tool
 				if stack:get_wear() ~= old_stack:get_wear() and stack:get_count() == old_stack:get_count()
 						and (item_def.wear_represents == nil or item_def.wear_represents == "mechanical_wear") then
-					print("replaced")
 					fakeplayer:set_wielded_item(old_stack)
 				end
 			elseif not stack:is_empty() then