reference
This diagram from John McMurrough clearly shows the trajectory of a character’s movement（1 step=24 frames=1 second）. Thanks to the abundant teaching resources on the Internet, animation learning would be extremely difficult without these reliable materials.
Process
I adjusted the actions in frames 0-3-6-9-12- 15-18-21-24, and tried to be consistent with the actions in the reference picture.
According to this rule, it can be concluded that the character takes 24 frames to take 1 step, which is 1 second.
At first, I naively thought that as long as I adjust the movement of a cycle, I can directly translate the character, then I can achieve the effect of moving forward. However, it is not as simple as I imagined. It have produced a very weird effect.
When I realized the mistake, I overturned it and started again. According to the law of walking, the action of raising legs will also affect the position of the body’s front and back,high and low. So I debug frame by frame. Although it took a long time, it finally achieved the effect I wanted.
Summary
Because of the reliable reference, this walking animation is not too difficult, mainly need to be patient of a lot of repetitive work. However， at the beginning, I fell into an wrong circle. I always want to do the movement first and then do the displacement.I tried many times, but I couldn’t achieve the effect in my mind, which led me to waste a lot of time in the wrong process. But in the end, I was very happy to solve this problem.
About walking, there are still many unknowns waiting for me to explore and excavate.