WarpField

portal-casting field-of-view algorithm

WarpField

WarpField is a grid-based field-of-view algorithm for roguelike games. It computes which cells are visible from a particular cell, using a technique called shadow casting. WarpField supports portals, linking one map to another, which allows:

• Continuous overworld movement from zone to zone
• Over/under pathways, such as bridges and tunnels
• Smooth transitions of elevation changes, like stairs