Lump 21 - Area Portals

This lump contains an array of dareaportal_t.

struct valvebsp.structs.lump_21.dareaportal_t

portalKey(int)<parsed from unsigned short>

otherArea(int)<parsed from unsigned short>

firstClipPortalVert(int)<parsed from unsigned short>

clipPortalVerts(int)<parsed from unsigned short>

planeNum(int)<parsed from long>