I'm prototyping a 2D platofrm game with simple jump to tap mechanics. Here, the ball is constantly moving forward with a fixed velocity, and jumps when a key is pressed. For reference, image below :
This is one of the many scenarios in the game. Difficulty I have is determining the position of various obstacles. For example, in the attached image, how to determine how far the two obstacle pairs should be so that it's just right. Make sure player can jump through the first pair and clear the second pair without making it too easy or nearly impossible to clear. Any level design validation techniques?