added ground pound

scripts/player_ground_pound.gd

@@ -0,0 +1,11 @@
+extends PlayerState
+class_name PlayerGroundPound
+
+@export var ground_pound_velocity = -35
+
+func Enter():
+	character.velocity += Vector3(0,ground_pound_velocity,0)
+
+func Physics_Update(delta):
+	if character.is_on_floor():
+		Transitioned.emit(self, "crouched")