prototype vibe

systems/wave_system.gd

@@ -0,0 +1,47 @@
+extends Node
+
+const WAVE_DURATION := 60.0
+
+var tick_accumulator := 0.0
+
+func _ready() -> void:
+  EventBus.portal_defeated.connect(_on_portal_defeated)
+  EventBus.invasion_ended.connect(_on_invasion_ended)
+  call_deferred("_start_run")
+
+func _start_run() -> void:
+  if not GameState.run_initialized:
+    GameState.current_wave = 1
+    GameState.wave_timer_remaining = WAVE_DURATION
+    GameState.run_initialized = true
+    EventBus.run_started.emit(GameState.current_wave)
+  EventBus.wave_started.emit(GameState.current_wave)
+
+func _process(delta: float) -> void:
+  if GameState.wave_timer_remaining <= 0:
+    return
+  GameState.wave_timer_remaining -= delta
+  tick_accumulator += delta
+  if tick_accumulator >= 1.0:
+    tick_accumulator -= 1.0
+    EventBus.wave_timer_tick.emit(max(0.0, GameState.wave_timer_remaining))
+  if GameState.wave_timer_remaining <= 0:
+    GameState.wave_timer_remaining = 0.0
+    EventBus.wave_timer_tick.emit(0.0)
+
+func _on_portal_defeated(portal: Node) -> void:
+  if not portal.is_in_group("red_portal"):
+    return
+  _advance_wave()
+
+func _on_invasion_ended(success: bool) -> void:
+  if not success:
+    return
+  _advance_wave()
+
+func _advance_wave() -> void:
+  EventBus.wave_ended.emit(GameState.current_wave, true)
+  GameState.current_wave += 1
+  GameState.wave_timer_remaining = WAVE_DURATION
+  tick_accumulator = 0.0
+  EventBus.wave_started.emit(GameState.current_wave)