Prevent character from flying above pillars, make pillars fill screen

game/Gnu/Gnu.gd

@@ -57,6 +57,9 @@ func _physics_process(delta) -> void:
 		sprite.rotate(_angular_velocity * delta)
 	
 	var motion : Vector2 = _velocity * delta
+	# Prevent the character from moving too high up
+	if position.y < -100.0 and motion.y < 0.0:
+		motion.y = 0.0
 	var collision := move_and_collide(motion)
 	if collision:
 		die()

game/Pillar/Pillar.tscn

@@ -15,16 +15,16 @@ __meta__ = {
 "_edit_vertical_guides_": [  ]
 }
 
-[node name="pillar_top" type="Sprite" parent="."]
-position = Vector2( -10, -590 )
+[node name="PillarTop" type="Sprite" parent="."]
+position = Vector2( -10, -750 )
 z_index = 5
 texture = ExtResource( 2 )
 
 [node name="CollisionPolygon2D" type="CollisionPolygon2D" parent="."]
 position = Vector2( 0, 50 )
-polygon = PoolVector2Array( -120, -240, 100, -240, 100, -1060, -120, -1060 )
+polygon = PoolVector2Array( -120, -240, 100, -240, 100, -1510, -120, -1510 )
 
-[node name="pillar_bottom" type="Sprite" parent="."]
+[node name="PillarBottom" type="Sprite" parent="."]
 position = Vector2( 0, 650 )
 texture = ExtResource( 3 )
 
@@ -33,7 +33,7 @@ position = Vector2( 0, 1226 )
 polygon = PoolVector2Array( -120, -240, 100, -240, 100, -1060, -120, -1060 )
 
 [node name="Checkpoint" type="Area2D" parent="."]
-position = Vector2( 119.5, -20 )
+position = Vector2( 0, -20 )
 collision_layer = 4
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="Checkpoint"]