Detect the point where player is not standing on the floor

Help
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1

Godot Version

v4.2.stable.official [46dc27791]

Question

Is there a way to find the point where player CollisionShape2D is not touching the floor, like with RigidBody2D?
edge

2

check it from get_colliding_bodies() method. if return none of the floor, then the rigidbody2d is not touching the floor

then calculate both position and edge, you will get the point