portal

type Portal struct {
	// Id portal id
	Id int32
	// Plane
	Plane plane.Plane
	// OnNode
	OnNode *node.Node
	// Nodes
	Nodes [2]*node.Node
	// Next
	Next [2]*Portal
	// Winding
	Winding *common.Winding
	// SideFound
	SideFound int32 //qboolean = int32
	// Side
	Side *common.Side
	// Face
	Face [2]*face.Face
}