# mod_events.ludic — the event bus with two listeners on one event, driven from
# Ludic (replaces the former tests/mod_c/mod.c foreign-mod host). A public event
# `Damage` has two @On listeners: one prints the amount, one accumulates a total.
# Emitting it twice runs both listeners each time. Prints 10 / 32 / 42.
program ModEvents {
  state ModEventsState {
    total: int = 0
  }
  event Damage { amount: int = 0 }
  @On(Damage) handler Native { print(amount) }        # prints each hit
  @On(Damage) handler Accum(mod_events_st: mut ModEventsState)  { mod_events_st.total += amount }   # sums them

  entry (mod_events_st: ModEventsState) {
    emit Damage(amount: 10)     # Native prints 10
    emit Damage(amount: 32)     # Native prints 32
    print(mod_events_st.total)                # 42
  }
}