the boss!

systems/boss/boss.gd

@@ -0,0 +1,34 @@
+class_name Boss
+extends Node2D
+
+
+signal damaged(damage: int)
+signal defeated()
+
+
+@export var first_phase: BossPhase
+
+
+var current_phase: BossPhase
+
+
+func _ready() -> void:
+	if first_phase:
+		current_phase = first_phase
+		current_phase.ended.connect(_on_phase_ended, CONNECT_ONE_SHOT)
+		first_phase.start_phase()
+
+
+func hurt(damage: int = 1) -> void:
+	if current_phase:
+		CurrentGame.change_score(100)
+		current_phase.hurt(damage)
+		damaged.emit(damage)
+
+
+func _on_phase_ended() -> void:
+	current_phase = current_phase.next_phase
+	if current_phase:
+		current_phase.ended.connect(_on_phase_ended, CONNECT_ONE_SHOT)
+	else:
+		defeated.emit()