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| author | Robert Vollmert <rvollmert@gmx.net> | 2009-10-16 23:48:56 +0200 |
|---|---|---|
| committer | Robert Vollmert <rvollmert@gmx.net> | 2009-10-16 23:49:51 +0200 |
| commit | f6e6b6b7151af9290c0597acb1995ed157378529 (patch) | |
| tree | c984c3816cc6a66118b8fc47b6e6984f1b1eba4d /crawl-ref/source/los.cc | |
| parent | 756894ef3f3dd9c70af6115be117bb09e4374342 (diff) | |
| download | crawl-ref-f6e6b6b7151af9290c0597acb1995ed157378529.tar.gz crawl-ref-f6e6b6b7151af9290c0597acb1995ed157378529.zip | |
Rewrite cell_see_cell using exists_ray.
For this, add new opacity_func that disregards half-opaque things.
Diffstat (limited to 'crawl-ref/source/los.cc')
| -rw-r--r-- | crawl-ref/source/los.cc | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/crawl-ref/source/los.cc b/crawl-ref/source/los.cc index 38de458419..9dbe3bc23d 100644 --- a/crawl-ref/source/los.cc +++ b/crawl-ref/source/los.cc @@ -775,14 +775,10 @@ int num_feats_between(const coord_def& source, const coord_def& target, return (count); } -// Is p2 visible from p1, disregarding clouds? -// XXX: Horribly inefficient since we do an entire LOS calculation; -// needs to be rewritten if it is used more. +// Is p2 visible from p1, disregarding half-opaque objects? bool cell_see_cell(const coord_def& p1, const coord_def& p2) { - env_show_grid show; - losight(show, p1); - return see_grid(show, p1, p2); + return exists_ray(p1, p2, opc_fullyopaque); } // We use raycasting. The algorithm: |