Platformer: Snap to slope

Otherwise the movement going down the slope is bumpy.

Author: manuq

game-03/main.tscn

@@ -795,6 +795,8 @@ position = Vector2(1472, 256)
 position = Vector2(512, 448)
 collision_layer = 1
 collision_mask = 7
+floor_constant_speed = true
+floor_snap_length = 32.0
 speed = Vector2(250, 600)
 
 [node name="Camera2D" type="Camera2D" parent="Player"]