After reading chapters, I could learn how to approach the concept. Also, I realized there are better ways to express or represent my idea. For example, using ‘dist’ ,which was explained in chapter 10, was easier to complete intersecting with object instead of using check collision which I used for midterm project for interesting. I am happy to realize this notion. I think i’ll probably have to learn lots of way for coding to be able to do a good thing when I say what I want.