对于环绕地图，是否存在简单的“直观点”算法？

I'm trying to build a rectangular grid that can wrap around at the edges. Anyone who plays video games will probably be familiar with the concept: go far enough in one direction on the world map and you'll end up back where you started. This causes some difficulty in setting up the viewport, though, since the edges can scroll into negative coordinate territory.I'm trying to build a rectangular grid that can