ft: prey player detection

evolve-die-repeat/molecular/prey/nucleotide_prey.gd

@@ -3,7 +3,9 @@ extends AbstractPrey2D
 @onready var sprite = get_node("AnimatedSprite2D")
 @onready var fsm = $StateMachine
 
-# Mirroed sprites for periodic boundary
+var desired_rotation: float = self.rotation
+
+# Mirrored sprites for periodic boundary
 var mirrorSprite1: Node2D
 var mirrorSprite2: Node2D
 var mirrorSprite3: Node2D
@@ -29,11 +31,14 @@ func _process(delta: float) -> void:
 	_handle_wrapping()
 
 func _physics_process(delta: float) -> void:
-	pass
+	# rotate smoothly
+	if self.rotation != self.desired_rotation: # FIXME: causes the mirror sprites to flip out
+		self.rotation = lerp_angle(self.rotation, self.desired_rotation, 4 * delta)
 
 func move(motion: Vector3) -> void:
 	move_and_collide(Vector2(motion.x, motion.y))  # Moves along the given vector
-	
+	self.desired_rotation = atan2(motion.y, motion.x)	
+		
 	# Apply boundary to new position
 	position = GameManager.get_boundaried_position(position)
 
@@ -55,6 +60,11 @@ func become_injured() -> void:
 	mirrorSprite2.play("Injured")
 	mirrorSprite3.play("Injured")
 
+func _on_sight_body_entered(body: Node2D) -> void:
+	if body.is_in_group("predators") or body.is_in_group("player"):
+		fsm.transition_to_next_state(fsm.States.FLEEING, {"threat": body})
+
+	
 # Mirroring table:
 # |---|---|---|---|
 # | 4 | 3 | 4 | 3 |
@@ -142,9 +152,3 @@ func _handle_wrapping():
 		# Top
 		#mirrorSprite3.position = Vector2(sprite.position.x, sprite.position.y - GameManager.screen_size.y)
 		mirrorSprite3.position = Vector2(0,  - GameManager.screen_size.y)
-
-	
-
-
-func _on_timer_timeout() -> void:
-	pass # Replace with function body.