ft: nucleotide prey FSM

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

@@ -0,0 +1,22 @@
+extends State
+
+var threat: Node2D
+var threshold: float = 100
+
+func enter(previous_state_path: String, data := {}) -> void:
+	if data.has("threat"):
+		threat = data["threat"]
+	else:
+		# default behaviour; do nothing
+		threat = owner
+
+func physics_update(_delta: float) -> void:
+	if owner.position.distance_to(threat.position) > threshold:
+		finished.emit(owner.fsm.States.IDLE, {}) 
+		return
+	owner.move(flee_from(threat.position))
+
+func flee_from(pos: Vector2) -> Vector3:
+	var diff = threat.position - owner.position
+	diff = diff.normalized() * -1
+	return Vector3(diff.x, diff.y ,0)