On Sunday, 6 November 2022 at 16:48:24 UTC, Joel wrote:
I want my code fixed up so that works from any two points.
You can add a condition to prevent writing out of the image/framebuffer/whatever memory so it won't do any out of bounds write.
Another valid algorithm could be testing all pixels for distance from the line.(i believe that's what 2D vector rendering software does?)
`incrE` and `incrNE`'s use can be replaced with an approach where you increment a counter by `dx/dy`(assuming `dy > dx` here) every iteration(after you draw the dot i believe) and whenever the counter is above `1` you add `sx` or `sy` to the `x` or `y` value then substract the counter by `1`.(as the wording implies, you will probably need to branch depending on if `dx > dy` or `dy > dx`).
