From df75dc7b7ec03a3b30052efbea988c3ab2b8f430 Mon Sep 17 00:00:00 2001
From: cheapie <no-email-for-you@example.com>
Date: Fri, 24 Aug 2018 16:19:53 -0500
Subject: Initial commit

---
 firealarm_common/init.lua | 61 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 firealarm_common/init.lua

(limited to 'firealarm_common/init.lua')

diff --git a/firealarm_common/init.lua b/firealarm_common/init.lua
new file mode 100644
index 0000000..ae2a2a0
--- /dev/null
+++ b/firealarm_common/init.lua
@@ -0,0 +1,61 @@
+firealarm = {}
+
+firealarm.devices = {
+	panel = {},
+	signaling = {},
+	notification = {},
+}
+
+function firealarm.loadNode(pos)
+	minetest.forceload_block(pos,true)
+end
+
+function firealarm.loadDevLists()
+	local path = minetest.get_worldpath()..DIR_DELIM.."firealarm_devices"
+	local file = io.open(path,"r")
+	if not file then
+		minetest.log("error","Unable to open fire alarm devices table for reading. "..
+		                     "This is normal on the first start.")
+		firealarm.saveDevLists()
+		return
+	end
+	local serdata = file:read("*a")
+	file:close()
+	local data = minetest.deserialize(serdata)
+	if type(data) == "table" then
+		firealarm.devices = data
+	else
+		error("Fire alarm devices table is corrupted or contains invalid data")
+	end
+end
+
+function firealarm.saveDevLists()
+	local path = minetest.get_worldpath()..DIR_DELIM.."firealarm_devices"
+	local file = io.open(path,"w")
+	if not file then
+		minetest.log("error","Unable to open fire alarm devices table for writing")
+		return
+	end
+	local serdata = minetest.serialize(firealarm.devices)
+	file:write(serdata)
+	file:close()
+end
+
+function firealarm.getDevInfo(devType,pos)
+	if devType ~= "panel" and devType ~= "signaling" and devType ~= "notification" then
+		error("Invalid device type specified")
+	end
+	local hash = minetest.hash_node_position(pos)
+	return firealarm.devices[devType][hash]
+end
+
+function firealarm.setDevInfo(devType,pos,info)
+	if devType ~= "panel" and devType ~= "signaling" and devType ~= "notification" then
+		error("Invalid device type specified")
+	end
+	local hash = minetest.hash_node_position(pos)
+	firealarm.devices[devType][hash] = info
+	firealarm.saveDevLists()
+end
+
+firealarm:loadDevLists()
-- 
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