From 7cfb3874a381d5923611242b4cf7756d86049def Mon Sep 17 00:00:00 2001
From: Kevin Zheng <kevinz5000@gmail.com>
Date: Wed, 06 Aug 2014 19:08:48 +0200
Subject: [PATCH] Evenly distribute charge across multiple batteries
---
technic/machines/switching_station.lua | 31 +++++++++++++++++++++++++++++--
1 files changed, 29 insertions(+), 2 deletions(-)
diff --git a/technic/machines/switching_station.lua b/technic/machines/switching_station.lua
index 6b59277..5517917 100644
--- a/technic/machines/switching_station.lua
+++ b/technic/machines/switching_station.lua
@@ -1,7 +1,10 @@
-- SWITCHING STATION
-- The switching station is the center of all power distribution on an electric network.
--- The station will collect all produced power from producers (PR) and batteries (BA)
--- and distribute it to receivers (RE) and depleted batteries (BA).
+--
+-- The station collects power from sources (PR), distributes it to sinks (RE),
+-- and uses the excess/shortfall to charge and discharge batteries (BA).
+--
+-- For now, all supply and demand values are expressed in kW.
--
-- It works like this:
-- All PR,BA,RE nodes are indexed and tagged with the switching station.
@@ -237,6 +240,30 @@
local eu_input_str = tier.."_EU_input"
local eu_supply_str = tier.."_EU_supply"
+ -- Distribute charge equally across multiple batteries.
+ local charge_total = 0
+ local battery_count = 0
+
+ for n, pos1 in pairs(BA_nodes) do
+ meta1 = minetest.get_meta(pos1)
+ local charge = meta1:get_int("internal_EU_charge")
+
+ if (meta1:get_int(eu_demand_str) ~= 0) then
+ charge_total = charge_total + charge
+ battery_count = battery_count + 1
+ end
+ end
+
+ local charge_distributed = math.floor(charge_total / battery_count)
+
+ for n, pos1 in pairs(BA_nodes) do
+ meta1 = minetest.get_meta(pos1)
+
+ if (meta1:get_int(eu_demand_str) ~= 0) then
+ meta1:set_int("internal_EU_charge", charge_distributed)
+ end
+ end
+
-- Get all the power from the PR nodes
local PR_eu_supply = 0 -- Total power
for _, pos1 in pairs(PR_nodes) do
--
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