ft: made sprite behaviour consistent across entities

evolve-die-repeat/molecular/predator/hammerhead_predator.gd

@@ -15,8 +15,7 @@ var can_attack: bool = true
 
 func _ready() -> void:
 	health = maxHealth
-	sprite.play("Healthy") # TODO: sprite play logic (esp wrt state switching)
-	wrapper.play_sprite("Healthy")
+	play_sprite(idle_sprite)
 	if starting_pos:
 		collision.set_position(starting_pos)
 	
@@ -61,8 +60,8 @@ func die() -> void:
 	super.die()
 
 func become_injured() -> void:
-	sprite.play("Hurt")
-	wrapper.play_sprite("Hurt")	
+	idle_sprite = "Hurt"
+	play_sprite(idle_sprite)
 
 func _on_sight_body_entered(body: Node2D) -> void:
 	if fsm.map(fsm.state) != fsm.States.HUNTING and body.is_in_group("prey") or (health < maxHealth and body.is_in_group("player")):