Replace monster_los by calls to losight.

los_param got a new opacity_monmove to help. The change compiles
and the game runs, but I'm unsure how to test monster pathfinding.
Please tell me if anything went wrong!

Removes mon-los.{cc,h}, so I'm afraid I may have broken the
non-Unix builds again.

1 files changed, 25 insertions, 2 deletions

diff --git a/crawl-ref/source/losparam.h b/crawl-ref/source/losparam.h
index 8818f3a7d8..7a152a0225 100644
--- a/crawl-ref/source/losparam.h
+++ b/crawl-ref/source/losparam.h
@@ -52,6 +52,19 @@ struct opacity_solid : opacity_func
 };
 static opacity_solid opc_solid;
 
+// Opacity for monster movement, based on the late monster_los.
+struct opacity_monmove : opacity_func
+{
+    const monsters& mon;
+
+    opacity_monmove(const monsters& m)
+        : mon(m)
+    {
+    }
+
+    opacity_type operator()(const coord_def& p) const;
+};
+
 // LOS bounded by fixed presquared radius.
 struct bounds_radius_sq : bounds_func
 {
@@ -60,8 +73,18 @@ struct bounds_radius_sq : bounds_func
         : radius_sq(r_sq) {}
     bool operator()(const coord_def& p) const;
 };
-static bounds_radius_sq bds_deflos = bounds_radius_sq(LOS_RADIUS_SQ);
-static bounds_radius_sq bds_maxlos = bounds_radius_sq(LOS_MAX_RADIUS_SQ);
+
+// LOS bounded by fixed radius.
+struct bounds_radius : bounds_radius_sq
+{
+    bounds_radius(int r)
+        : bounds_radius_sq(r * r + 1)
+    {
+    }
+};
+
+static bounds_radius bds_deflos = bounds_radius(LOS_RADIUS);
+static bounds_radius bds_maxlos = bounds_radius(LOS_MAX_RADIUS);
 
 // LOS bounded by current global LOS radius.
 struct bounds_cur_los_radius : bounds_func