diff options
Diffstat (limited to 'crawl-ref/source/geom2d.cc')
| -rw-r--r-- | crawl-ref/source/geom2d.cc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/crawl-ref/source/geom2d.cc b/crawl-ref/source/geom2d.cc index de8d86724b..35ec5138ae 100644 --- a/crawl-ref/source/geom2d.cc +++ b/crawl-ref/source/geom2d.cc @@ -44,6 +44,11 @@ double intersect(const ray &r, const line &l) return (t); } +double lineseq::index(const vector &v) const +{ + return ((f(v) - offset) / dist); +} + // Find the next intersection of r with a line in ls. double nextintersect(const ray &r, const lineseq &ls) { @@ -129,6 +134,9 @@ vector reflect(const vector &v, const form &f) return (v - 2 * f(v)/f(n) * n); } + + +////////////////////////////////////////////////// // vector space implementation const vector& vector::operator+=(const vector &v) |