# world_mixed.ludic — EV2b reflection: get/set use real struct offsets, not a
# field*4 assumption (replaces tests/mod_c/world_mixed.c). Slot's `qty` sits after
# a `ptr` field, so its byte offset is 8, not 4; writing qty=99 by name and reading
# it back proves the world table addresses fields by their true layout. Prints 99.
program WorldMixed {
  property Slot { ref: pointer = null, qty: int = 0 }
  model Item { Slot }
  @Public @OnSpawn(Item) handler Born { }          # makes it a modding program

  entry {
    let e   = world_spawn(world_model_id("Item"))
    let S   = world_prop_id("Slot")
    let qty = world_field_id(S, "qty")             # field index 1, after the ptr
    world_set(e, S, qty, 99)
    print(world_get(e, S, qty))                    # 99 iff the offset is 8, not 4
  }
}