-- The medium voltage solar array is an assembly of low voltage arrays.
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-- The assembly can deliver medium voltage levels and is a 10% less efficient
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-- compared to 5 individual low voltage arrays due to losses in the transformer.
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-- However medium voltage is supplied.
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-- Solar arrays are not able to store large amounts of energy.
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-- The MV arrays are used to make high voltage arrays.
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minetest.register_node("technic:solar_array_mv", {
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tiles = {"technic_mv_solar_array_top.png", "technic_mv_solar_array_bottom.png", "technic_mv_solar_array_side.png",
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"technic_mv_solar_array_side.png", "technic_mv_solar_array_side.png", "technic_mv_solar_array_side.png"},
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groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2},
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sounds = default.node_sound_wood_defaults(),
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description="MV Solar Array",
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active = false,
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technic_mv_power_machine=1,
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internal_EU_buffer=0;
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internal_EU_buffer_size=1000;
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drawtype = "nodebox",
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paramtype = "light",
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is_ground_content = true,
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node_box = {
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type = "fixed",
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fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
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},
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selection_box = {
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type = "fixed",
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fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
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},
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on_construct = function(pos)
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local meta = minetest.env:get_meta(pos)
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meta:set_float("technic_mv_power_machine", 1)
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meta:set_float("internal_EU_buffer", 0)
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meta:set_float("internal_EU_buffer_size", 1000)
|
|
meta:set_string("infotext", "MV Solar Array")
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meta:set_float("active", false)
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end,
|
})
|
|
minetest.register_craft({
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output = 'technic:solar_array_mv 1',
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recipe = {
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{'technic:solar_array_lv', 'technic:solar_array_lv','technic:solar_array_lv'},
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{'technic:solar_array_lv', 'technic:mv_transformer','technic:solar_array_lv'},
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{'', 'technic:mv_cable',''},
|
|
}
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})
|
|
minetest.register_abm(
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{nodenames = {"technic:solar_array_mv"},
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interval = 1,
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chance = 1,
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action = function(pos, node, active_object_count, active_object_count_wider)
|
-- The action here is to make the solar array produce power
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-- Power is dependent on the light level and the height above ground
|
-- 130m and above is optimal as it would be above cloud level.
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-- Height gives 1/4 of the effect, light 3/4. Max. effect is 720EU for the array.
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-- There are many ways to cheat by using other light sources like lamps.
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-- 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={}
|
pos1.y=pos.y+1
|
pos1.x=pos.x
|
pos1.z=pos.z
|
|
local light = minetest.env:get_node_light(pos1, nil)
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local time_of_day = minetest.env:get_timeofday()
|
local meta = minetest.env:get_meta(pos)
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if light == nil then light = 0 end
|
-- 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 > -10 then
|
local internal_EU_buffer = meta:get_float("internal_EU_buffer")
|
local internal_EU_buffer_size = meta:get_float("internal_EU_buffer_size")
|
local charge_to_give = math.floor(light*(light*2.4+pos1.y/130*12))
|
if charge_to_give<0 then charge_to_give=0 end
|
if charge_to_give>720 then charge_to_give=720 end
|
if internal_EU_buffer+charge_to_give>internal_EU_buffer_size then
|
charge_to_give=internal_EU_buffer_size-internal_EU_buffer
|
end
|
meta:set_string("infotext", "Solar Array is active ("..charge_to_give.."EU)")
|
meta:set_float("active",1)
|
internal_EU_buffer=internal_EU_buffer+charge_to_give
|
meta:set_float("internal_EU_buffer",internal_EU_buffer)
|
|
else
|
meta:set_string("infotext", "Solar Array is inactive");
|
meta:set_float("active",0)
|
end
|
end,
|
})
|
|
register_MV_machine ("technic:solar_array_mv","PR")
|
