Add new level, collapsable component, knockback component

scripts/components/knockback.gd

@@ -0,0 +1,32 @@
+class_name KnockbackComponent
+extends Node
+
+@export var character_body: CharacterBody2D
+@export var knockback_force: float = 25.0
+
+var knockback_mode: bool = false
+var knockback_frames: int = 0
+
+func apply_knockback(force: float, delta: float) -> void:
+	var velocity = character_body.velocity.normalized()
+	var knockback_dir = Vector2(sign(velocity.x) * 1.0, 0.4)
+	var knockback_vector = -knockback_dir * force * delta
+	character_body.velocity += knockback_vector
+
+func _on_health_component_on_health_change(delta: float, total_health: float) -> void:
+	if total_health <= 0.0 and delta < 0.0:
+		return
+	knockback_mode = true
+	
+func _process(_delta: float) -> void:
+	if knockback_mode:
+		knockback_frames += 1
+	if knockback_frames > 1:
+		knockback_mode = false
+		knockback_frames = 0
+		
+func _physics_process(delta: float) -> void:
+	if knockback_mode:
+		apply_knockback(knockback_force, delta)
+		
+