Natural cave traps

You need to create a separate block of vegetation similar to moss, which will be generated in caves and through which the player will be able to pass. The bottom line is that if a player walks through a cave and steps on it, he will fall into another cave, a cave lake or a dungeon. And if this vegetation is on the walls of the cave, then it will be possible to penetrate through it into another cave. Also, drop stalactites swinging down should break off and fall down during physical impact or explosions, causing damage to those they hit.