RealBadAngel
2013-01-27 82cba919fa8c6872718cf3f47520299f40ea700b
technic/solar_panel_mv.lua
New file
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minetest.register_node("technic:solar_panel_mv", {
   tiles = {"technic_mv_solar_panel_top.png", "technic_mv_solar_panel_bottom.png", "technic_mv_solar_panel_side.png",
      "technic_mv_solar_panel_side.png", "technic_mv_solar_panel_side.png", "technic_mv_solar_panel_side.png"},
   groups = {snappy=2,choppy=2,oddly_breakable_by_hand=2},
   sounds = default.node_sound_wood_defaults(),
       description="MV Solar Panel",
   active = false,
   technic_mv_power_machine=1,
   internal_EU_buffer=0;
   internal_EU_buffer_size=10000;
   drawtype = "nodebox",
   paramtype = "light",
   is_ground_content = true,
   node_box = {
         type = "fixed",
         fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
      },
      selection_box = {
         type = "fixed",
         fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
      },
   on_construct = function(pos)
      local meta = minetest.env:get_meta(pos)
      meta:set_float("technic_mv_power_machine", 1)
      meta:set_float("internal_EU_buffer", 0)
      meta:set_float("internal_EU_buffer_size", 10000)
      meta:set_string("infotext", "MV Solar Panel")
      meta:set_float("active", false)
   end,
})
minetest.register_craft({
   output = 'technic:solar_panel_mv 1',
   recipe = {
      {'technic:solar_panel', 'technic:solar_panel','technic:solar_panel'},
      {'technic:solar_panel', 'technic:mv_transformer','technic:solar_panel'},
      {'', 'technic:mv_cable',''},
   }
})
minetest.register_abm(
   {nodenames = {"technic:solar_panel_mv"},
   interval = 1,
   chance = 1,
   action = function(pos, node, active_object_count, active_object_count_wider)
      local pos1={}
      pos1.y=pos.y+1
      pos1.x=pos.x
      pos1.z=pos.z
      local light = minetest.env:get_node_light(pos1, nil)
      local meta = minetest.env:get_meta(pos)
      if light == nil then light = 0 end
      if light >= 14 then
         meta:set_string("infotext", "Solar Panel is active ")
         meta:set_float("active",1)
         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=300+(pos1.y/250*300) -- make solar energy depending on height
         if charge_to_give<0 then charge_to_give=0 end
         if charge_to_give>600 then charge_to_give=600 end
         if internal_EU_buffer+charge_to_give>internal_EU_buffer_size then
         charge_to_give=internal_EU_buffer_size-internal_EU_buffer
         end
         internal_EU_buffer=internal_EU_buffer+charge_to_give
         meta:set_float("internal_EU_buffer",internal_EU_buffer)
      else
         meta:set_string("infotext", "Solar Panel is inactive");
         meta:set_float("active",0)
      end
   end,
})