technic/technic/machines/register/solar_array.lua
2013-11-26 16:53:52 -05:00

71 lines
2.7 KiB
Lua

local S = technic.getter
function technic.register_solar_array(data)
local tier = data.tier
local ltier = string.lower(tier)
minetest.register_node("technic:solar_array_"..ltier, {
tiles = {"technic_"..ltier.."_solar_array_top.png", "technic_"..ltier.."_solar_array_bottom.png",
"technic_"..ltier.."_solar_array_side.png", "technic_"..ltier.."_solar_array_side.png",
"technic_"..ltier.."_solar_array_side.png", "technic_"..ltier.."_solar_array_side.png"},
groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2},
sounds = default.node_sound_wood_defaults(),
description = S("%s Solar Array"):format(tier),
active = false,
drawtype = "nodebox",
paramtype = "light",
node_box = {
type = "fixed",
fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
},
on_construct = function(pos)
local meta = minetest.get_meta(pos)
local name = minetest.get_node(pos).name
meta:set_int(tier.."_EU_supply", 0)
end,
})
minetest.register_abm({
nodenames = {"technic:solar_array_"..ltier},
interval = 1,
chance = 1,
action = function(pos, node, active_object_count, active_object_count_wider)
-- The action here is to make the solar array produce power
-- Power is dependent on the light level and the height above ground
-- 130m and above is optimal as it would be above cloud level.
-- Height gives 1/4 of the effect, light 3/4. Max. effect is 2880EU for the array.
-- There are many ways to cheat by using other light sources like lamps.
-- As there is no way to determine if light is sunlight that is just a shame.
-- To take care of some of it solar panels do not work outside daylight hours or if
-- built below -10m
local pos1 = {}
local machine_name = S("%s Solar Array"):format(tier)
pos1.y = pos.y + 1
pos1.x = pos.x
pos1.z = pos.z
local light = minetest.get_node_light(pos1, nil)
local time_of_day = minetest.get_timeofday()
local meta = minetest.get_meta(pos)
light = light or 0
-- turn on array only during day time and if sufficient light
-- I know this is counter intuitive when cheating by using other light sources.
if light >= 12 and time_of_day >= 0.24 and time_of_day <= 0.76 and pos.y > 0 then
local charge_to_give = math.floor((light + pos.y) * data.power)
charge_to_give = math.max(charge_to_give, 0)
charge_to_give = math.min(charge_to_give, data.power * 50)
meta:set_string("infotext", S("%s Active"):format(machine_name).." ("..charge_to_give.."EU)")
meta:set_int(tier.."_EU_supply", charge_to_give)
else
meta:set_string("infotext", S("%s Idle"):format(machine_name))
meta:set_int(tier.."_EU_supply", 0)
end
end,
})
technic.register_machine(tier, "technic:solar_array_"..ltier, technic.producer)
end