From 10273d633986cf417c52169acb14a12fc52cb018 Mon Sep 17 00:00:00 2001
From: Robert Vollmert <rvollmert@gmx.net>
Date: Fri, 6 Nov 2009 21:09:35 +0100
Subject: Give actors their own LOS.

---
 crawl-ref/source/actor.cc | 11 +++++++++++
 crawl-ref/source/actor.h  |  9 ++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/crawl-ref/source/actor.cc b/crawl-ref/source/actor.cc
index efc56962ef..705a492221 100644
--- a/crawl-ref/source/actor.cc
+++ b/crawl-ref/source/actor.cc
@@ -17,6 +17,16 @@ bool actor::observable() const
     return (crawl_state.arena || this == &you || you.can_see(this));
 }
 
+bool actor::see_cell(const coord_def &p) const
+{
+    return (los.see_cell(p));
+}
+
+void actor::update_los()
+{
+    los.update();
+}
+
 bool actor::can_see(const actor *target) const
 {
     return (target->visible_to(this) && see_cell(target->pos()));
@@ -118,4 +128,5 @@ bool actor::check_res_magic(int power)
 void actor::set_position(const coord_def &c)
 {
     position = c;
+    los.set_center(c);
 }
diff --git a/crawl-ref/source/actor.h b/crawl-ref/source/actor.h
index c18722f5c1..000eba813f 100644
--- a/crawl-ref/source/actor.h
+++ b/crawl-ref/source/actor.h
@@ -1,6 +1,8 @@
 #ifndef ACTOR_H
 #define ACTOR_H
 
+#include "los_def.h"
+
 class actor
 {
 public:
@@ -107,7 +109,9 @@ public:
     virtual bool visible_to(const actor *looker) const = 0;
 
     // Is the given cell within LOS of the actor?
-    virtual bool see_cell(const coord_def &c) const = 0;
+    virtual bool see_cell(const coord_def &c) const;
+
+    virtual void update_los();
 
     // Can the actor actually see the target?
     virtual bool can_see(const actor *target) const;
@@ -221,6 +225,9 @@ public:
     virtual bool     do_shaft() = 0;
 
     coord_def position;
+
+protected:
+    los_def los;
 };
 
 #endif
-- 
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