X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flibr2c2%2Ftrack.cpp;h=540c24743d05136f121816cba463a92c8f395c7f;hb=3e3675f8d86b06cdea7df197dfe8866ffb285aec;hp=f21aac4d05a438ed6e2dde5b454b548e8e2d86c5;hpb=eab144208f380f638295efac3c5ef234dc39ac54;p=r2c2.git diff --git a/source/libr2c2/track.cpp b/source/libr2c2/track.cpp index f21aac4..540c247 100644 --- a/source/libr2c2/track.cpp +++ b/source/libr2c2/track.cpp @@ -326,6 +326,19 @@ TrackPoint Track::get_point(unsigned epi, float d) const return get_point(epi, active_path, d); } +TrackPoint Track::get_nearest_point(const Vector &p) const +{ + Vector local(p.x-pos.x, p.y-pos.y, p.z-pos.z); + float c = cos(rot); + float s = sin(rot); + local = Vector(c*local.x+s*local.y, c*local.y-s*local.x, local.z); + + TrackPoint tp = type.get_nearest_point(local); + tp.pos = Vector(pos.x+tp.pos.x*c-tp.pos.y*s, pos.y+tp.pos.y*c+tp.pos.x*s, pos.z+tp.pos.z); + tp.dir += rot; + return tp; +} + bool Track::collide_ray(const Vector &start, const Vector &ray) { Vector local_start(start.x-pos.x, start.y-pos.y, start.z-pos.z);