ludic/examples/events/scoped.ludic
Orkuncakilkaya bf36bc8a8f refactor(runtime,packages,examples): named constants, package enums, idiom sweep
- runtime: HEADLESS_FRAME_PATH, STICK_DEADZONE / STICK_LEFT_X/Y, key and
  byte codes as char literals throughout (`k == 'w'`, `fill(rt_map, ' ', …)`)
- ludic.gameplay/stats: drop the duplicate `stat_field` (it answered "atk"
  for every build stat); Stats.base uses stats_field_name
- ludic.shooter: compare aim modes and fire patterns with AimMode.* and
  WeaponPattern.* instead of raw ints; STICK_RIGHT_X/Y
- ludic.npcai: DecisionMade / brain_set_state use AiState.*
- examples/games/menu.ludic uses Font.load / Ui.* with FONT_PATH and
  BACKDROP named; strings.ludic header says what it prints
- whole tree: `x = x + 1` → `x += 1` (single-term right-hand sides only),
  `0 - x` → `-x`, ASCII codes → char literals; every .ludic and every
  ```ludic fence reformatted with the fixed formatter (whitespace only)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-05 01:12:26 +03:00

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# scoped.ludic — a despawned entity drops out of subsequent event-driven work
# (replaces tests/mod_c/scoped_mod.c, which tested entity-scoped foreign callbacks
# swept on despawn). Here a @On(Tick) listener counts live Units each tick; after
# the Unit is despawned, a further tick finds none. Fires twice before the kill,
# not the third time. Prints 2.
program Scoped {
property Health { hp: int = 0 }
model Unit { Health }
var fires: int = 0
event Tick { }
@On(Tick) handler OnTick { for (Health) in query [Health, {Unit}] { fires += 1 } }
entry {
spawn Unit { Health { hp: 1 } }
emit Tick() # 1 live Unit -> fires = 1
emit Tick() # fires = 2
for (Health) in query [Health, {Unit}] { despawn self() } # kill the Unit
emit Tick() # no live Units -> fires stays 2
print(fires) # 2
}
}