Calculate distance effort from entry point to button center Uses Euclidean distance normalized by sqrt(2)
Button center X coordinate (0-1 normalized)
Button center Y coordinate (0-1 normalized)
Entry point X coordinate (0-1 normalized, default 1.0 = bottom-right)
Entry point Y coordinate (0-1 normalized, default 1.0 = bottom-right)
Distance effort score
Calculate distance effort from entry point to button center Uses Euclidean distance normalized by sqrt(2)