Fix cycling power drain on the forcefield. Now it disables itself if no power.

diff --git a/technic/forcefield.lua b/technic/forcefield.lua
index 98201e85218b658d0562ac216e15c14128b7699d..8ad54100eb6d5d9eae623662efebc4c834d77060 100644 (file)
--- a/technic/forcefield.lua
+++ b/technic/forcefield.lua
@@ -4,6 +4,8 @@
 -- Forcefields are powerful barriers but they consume huge amounts of power.
 -- Forcefield Generator is a HV machine.
 
+-- How expensive is the generator? Leaves room for upgrades lowering the power drain?
+local forcefield_power_drain     = 10 -- default 10
 local forcefield_update_interval = 1
 
 minetest.register_craft({
@@ -107,7 +109,7 @@ local forcefield_check = function(pos)
 
                            local power_requirement
                            if enabled == 1 then
-                              power_requirement = math.floor(4*math.pi*math.pow(meta:get_int("range"), 2)) * 1
+                              power_requirement = math.floor(4*math.pi*math.pow(meta:get_int("range"), 2)) * forcefield_power_drain
                            else
                               power_requirement = eu_demand
                            end
@@ -115,10 +117,10 @@ local forcefield_check = function(pos)
                            if eu_input == 0 then
                               meta:set_string("infotext", "Forcefield Generator Unpowered")
                               meta:set_int("HV_EU_demand", 100)
+                              meta:set_int("enabled", 0)
                               if node.name == "technic:forcefield_emitter_on" then
                                  remove_forcefield(pos, meta:get_int("range"))
                                  hacky_swap_node(pos, "technic:forcefield_emitter_off")
-                                 meta:set_int("enabled", 0)
                               end
                            elseif eu_input == power_requirement then
                               if meta:get_int("enabled") == 1 then