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ruo pu koh2,669 Points
There's so many "sphere"s littered throughout the code it's so hard to follow.
In the makeSphere function, we're creating a Sphere called sphere?
Why does a sphere have 3 centers anyway?
Gwenaël Magnenat14,617 Points
I will try to answer with what I understood. In the makeSphere function you create a sphere with the Sphere struct and we return the sphere created at the end of the function to be used in the program. A sphere has 1 center defined by 3 coordinate values in a 3D space (x, y, z). It defines where the sphere is placed. In this example, the center is an array with the 3 values. That's why he defines a pointer that can point to each value of the center array. (ball.center, ball.center, ball.center)
I hope it helps..