| commit | author | age | ||
| ede397 | 1 | -- The medium voltage solar array is an assembly of low voltage arrays. |
| K | 2 | -- The assembly can deliver medium voltage levels and is a 10% less efficient |
| 3 | -- compared to 5 individual low voltage arrays due to losses in the transformer. | |
| 4 | -- However medium voltage is supplied. | |
| 5 | -- Solar arrays are not able to store large amounts of energy. | |
| 6 | -- The MV arrays are used to make high voltage arrays. | |
| 7 | minetest.register_node("technic:solar_array_mv", { | |
| 8 | tiles = {"technic_mv_solar_array_top.png", "technic_mv_solar_array_bottom.png", "technic_mv_solar_array_side.png", | |
| 9 | "technic_mv_solar_array_side.png", "technic_mv_solar_array_side.png", "technic_mv_solar_array_side.png"}, | |
| 10 | groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2}, | |
| 11 | sounds = default.node_sound_wood_defaults(), | |
| 12 | description="MV Solar Array", | |
| 13 | active = false, | |
| 14 | technic_mv_power_machine=1, | |
| 15 | internal_EU_buffer=0; | |
| 16 | internal_EU_buffer_size=1000; | |
| 17 | drawtype = "nodebox", | |
| 18 | paramtype = "light", | |
| 19 | is_ground_content = true, | |
| 20 | node_box = { | |
| 21 | type = "fixed", | |
| 22 | fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5}, | |
| 23 | }, | |
| 24 | selection_box = { | |
| 25 | type = "fixed", | |
| 26 | fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5}, | |
| 27 | }, | |
| 28 | on_construct = function(pos) | |
| 29 | local meta = minetest.env:get_meta(pos) | |
| 30 | meta:set_float("technic_mv_power_machine", 1) | |
| 31 | meta:set_float("internal_EU_buffer", 0) | |
| 32 | meta:set_float("internal_EU_buffer_size", 1000) | |
| 33 | ||
| 34 | meta:set_string("infotext", "MV Solar Array") | |
| 35 | meta:set_float("active", false) | |
| 36 | end, | |
| 37 | }) | |
| 38 | ||
| 39 | minetest.register_craft({ | |
| 40 | output = 'technic:solar_array_mv 1', | |
| 41 | recipe = { | |
| 42 | {'technic:solar_array_lv', 'technic:solar_array_lv','technic:solar_array_lv'}, | |
| 43 | {'technic:solar_array_lv', 'technic:mv_transformer','technic:solar_array_lv'}, | |
| be7744 | 44 | {'default:steel_ingot', 'technic:mv_cable', 'default:steel_ingot'}, |
| ede397 | 45 | |
| K | 46 | } |
| 47 | }) | |
| 48 | ||
| 49 | minetest.register_abm( | |
| 50 | {nodenames = {"technic:solar_array_mv"}, | |
| 51 | interval = 1, | |
| 52 | chance = 1, | |
| 53 | action = function(pos, node, active_object_count, active_object_count_wider) | |
| 54 | -- The action here is to make the solar array produce power | |
| 55 | -- Power is dependent on the light level and the height above ground | |
| 56 | -- 130m and above is optimal as it would be above cloud level. | |
| 57 | -- Height gives 1/4 of the effect, light 3/4. Max. effect is 720EU for the array. | |
| 58 | -- There are many ways to cheat by using other light sources like lamps. | |
| 59 | -- As there is no way to determine if light is sunlight that is just a shame. | |
| 60 | -- To take care of some of it solar panels do not work outside daylight hours or if | |
| 61 | -- built below -10m | |
| 62 | local pos1={} | |
| 63 | pos1.y=pos.y+1 | |
| 64 | pos1.x=pos.x | |
| 65 | pos1.z=pos.z | |
| 66 | ||
| 67 | local light = minetest.env:get_node_light(pos1, nil) | |
| 68 | local time_of_day = minetest.env:get_timeofday() | |
| 69 | local meta = minetest.env:get_meta(pos) | |
| 70 | if light == nil then light = 0 end | |
| 71 | -- turn on array only during day time and if sufficient light | |
| 72 | -- I know this is counter intuitive when cheating by using other light sources. | |
| 73 | if light >= 12 and time_of_day>=0.24 and time_of_day<=0.76 and pos.y > -10 then | |
| 74 | local internal_EU_buffer = meta:get_float("internal_EU_buffer") | |
| 75 | local internal_EU_buffer_size = meta:get_float("internal_EU_buffer_size") | |
| 76 | local charge_to_give = math.floor(light*(light*2.4+pos1.y/130*12)) | |
| 77 | if charge_to_give<0 then charge_to_give=0 end | |
| 78 | if charge_to_give>720 then charge_to_give=720 end | |
| 79 | if internal_EU_buffer+charge_to_give>internal_EU_buffer_size then | |
| 80 | charge_to_give=internal_EU_buffer_size-internal_EU_buffer | |
| 81 | end | |
| 82 | meta:set_string("infotext", "Solar Array is active ("..charge_to_give.."EU)") | |
| 83 | meta:set_float("active",1) | |
| 84 | internal_EU_buffer=internal_EU_buffer+charge_to_give | |
| 85 | meta:set_float("internal_EU_buffer",internal_EU_buffer) | |
| cfb5bd | 86 | -- Idea: How about letting solar panels provide power without battery boxes? |
| K | 87 | -- This could provide an even distribution to all receivers. |
| ede397 | 88 | else |
| K | 89 | meta:set_string("infotext", "Solar Array is inactive"); |
| 90 | meta:set_float("active",0) | |
| 91 | end | |
| 92 | end, | |
| 93 | }) | |
| 94 | ||
| 95 | register_MV_machine ("technic:solar_array_mv","PR") | |
