Add charge set/get callbacks (#600)

sfence

2022-06-06 0211c582e9ce8745e19ff49496b026d393dad074

 technic_chests/iron_chest.lua

@@ -1,27 +1,34 @@
local cast_iron_ingot
if minetest.get_modpath("technic_worldgen") then
   cast_iron_ingot = "technic:cast_iron_ingot"
else
   cast_iron_ingot = "default:steel_ingot"
end

minetest.register_craft({
   output = 'technic:iron_chest 1',
   recipe = {
      {'technic:cast_iron_ingot','technic:cast_iron_ingot','technic:cast_iron_ingot'},
      {'technic:cast_iron_ingot','default:chest','technic:cast_iron_ingot'},
      {'technic:cast_iron_ingot','technic:cast_iron_ingot','technic:cast_iron_ingot'},
      {cast_iron_ingot,cast_iron_ingot,cast_iron_ingot},
      {cast_iron_ingot,'default:chest',cast_iron_ingot},
      {cast_iron_ingot,cast_iron_ingot,cast_iron_ingot},
   }
})

minetest.register_craft({
   output = 'technic:iron_locked_chest 1',
   recipe = {
      {'technic:cast_iron_ingot','technic:cast_iron_ingot','technic:cast_iron_ingot'},
      {'technic:cast_iron_ingot','default:chest_locked','technic:cast_iron_ingot'},
      {'technic:cast_iron_ingot','technic:cast_iron_ingot','technic:cast_iron_ingot'},
      {cast_iron_ingot,cast_iron_ingot,cast_iron_ingot},
      {cast_iron_ingot,'default:chest_locked',cast_iron_ingot},
      {cast_iron_ingot,cast_iron_ingot,cast_iron_ingot},
   }
})

minetest.register_craft({
   output = 'technic:iron_locked_chest 1',
   type = "shapeless",
   recipe = {
      {'technic:wrought_iron_ingot'},
      {'technic:iron_chest'},
      'basic_materials:padlock',
      'technic:iron_chest',
   }
})