Function SplitEdge

editor/HRoom.cpp:2997–3010

Adds a point to an edge

// Adds a point to an edge
void SplitEdge(room *rp, int facenum, int edgenum, float position) {
  face *fp = &rp->faces[facenum];
  int vert1 = (edgenum + 1) % fp->num_verts;
  vector *v0, *v1, newv;

  v0 = &rp->verts[fp->face_verts[edgenum]];
  v1 = &rp->verts[fp->face_verts[vert1]];

  newv = *v0 + (*v1 - *v0) * position;

  AddPointToAllEdges(rp, fp->face_verts[edgenum], fp->face_verts[vert1], &newv);

  World_changed = 1;
}

#define MIN_NORMAL_MAG 0.035