From 69c9f04b4ac16cb1214807791c14d0736ee75e4c Mon Sep 17 00:00:00 2001
From: Joachim Stolberg <joe.stolberg@gmx.de>
Date: Mon, 19 Jul 2021 20:11:26 +0200
Subject: [PATCH] Fix bugs

---
 liquid.lua   | 4 ++--
 networks.lua | 8 +++++++-
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/liquid.lua b/liquid.lua
index 17e2455..76b468b 100644
--- a/liquid.lua
+++ b/liquid.lua
@@ -188,7 +188,7 @@ end
 
 function networks.liquid.srv_put(nvm, name, amount, capa)
 	assert(name)
-	assert(amount and amount > 0)
+	assert(amount and amount >= 0)
 	assert(capa and capa > 0)
 	
 	nvm.liquid = nvm.liquid or {}
@@ -212,7 +212,7 @@ function networks.liquid.srv_put(nvm, name, amount, capa)
 end
 
 function networks.liquid.srv_take(nvm, name, amount)
-	assert(amount and amount > 0)
+	assert(amount and amount >= 0)
 	
 	nvm.liquid = nvm.liquid or {}
 	amount = amount or 0
diff --git a/networks.lua b/networks.lua
index de7581d..bbed549 100644
--- a/networks.lua
+++ b/networks.lua
@@ -489,10 +489,16 @@ function networks.determine_netID(pos, tlib2, outdir)
 end
 
 -- Provide network with all node tables
-function networks.get_network_table(pos, tlib2, outdir)
+function networks.get_network_table(pos, tlib2, outdir, force)
 	assert(outdir)
 	local netID = get_netID(pos, outdir)
 	if netID then
 		return get_network(tlib2.tube_type, netID)
 	end
+	if force then -- force the network load
+		local netID = networks.determine_netID(pos, tlib2, outdir)
+		if netID then
+			return get_network(tlib2.tube_type, netID)
+		end
+	end
 end