Frenchie14's messages

Hello Frenchie14, this is about your question regarding 2D projections. For the sake of providing a qualitative overview of the map, I don’t think a projection that preserves lengths is needed. As you have mentioned, choice of the projection type is an old questions and even goes back as far as Ptolemy’s Geography. Each projection has it’s advantages and disadvantages. A map that distorts the lengths can be obtained by converting latitudes and longitudes to X,Y positions to yield a rectangular 2D projection. Representing the view can be done by putting a point for the focus of the camera, but drawing the field of view would be involved. I don’t know about your data structure, but considering there is a low number of sprites you can perhaps do a reverse stereographic projection: https://en.wikipedia.org/wiki/Stereographic_projection. This would map the sphere to a disc, centered around the point the camera focuses on. In this case you would pick the point on the sphere that the camera focuses as the south pole and the point across as the north pole. This would map things close to the north pole close to the perimeter of the disc and the north pole would be the whole perimeter of the disc. Considering the positions are discrete, projections close to the north pole shouldn’t be ambiguous. Despite the distortion, this may work better than the first projection or similar ones as it would provide a general sense of direction relative to the current view. I hope this comment was helpful. Keep up the good work!