Fix radiation protection when armor group is not set (#509)

coil

2019-12-30 da95be53ec5703e808233d7b45fc42fb500863dd

 technic/tools/mining_lasers.lua

@@ -11,8 +11,8 @@
minetest.register_craft({
   output = "technic:laser_mk1",
   recipe = {
      {"default:diamond", "technic:brass_ingot",        "default:obsidian_glass"},
      {"",                "technic:brass_ingot",        "technic:red_energy_crystal"},
      {"default:diamond", "basic_materials:brass_ingot",        "default:obsidian_glass"},
      {"",                "basic_materials:brass_ingot",        "technic:red_energy_crystal"},
      {"",                "",                           "default:copper_ingot"},
   }
})
@@ -59,7 +59,7 @@
end

local function laser_shoot(player, range, particle_texture, sound)
   local player_pos = player:getpos()
   local player_pos = player:get_pos()
   local player_name = player:get_player_name()
   local dir = player:get_look_dir()