Replace global see_cell by observe_cell and disambiguate old uses.

Calls to plain see_cell(pos) were replaced with either observe_cell(pos)
or you.see_cell(pos). observe_cell where related to drawing the
interface and messaging, you.see_cell for game mechanics, and
one or the other in less clear cases (targetting, say).

1 files changed, 4 insertions, 4 deletions

diff --git a/crawl-ref/source/traps.cc b/crawl-ref/source/traps.cc
index 25a56cfa3e..b8230dfdff 100644
--- a/crawl-ref/source/traps.cc
+++ b/crawl-ref/source/traps.cc
@@ -311,7 +311,7 @@ void check_net_will_hold_monster(monsters *mons)
         if (net != NON_ITEM)
             destroy_item(net);
 
-        if (see_cell(mons->pos()))
+        if (observe_cell(mons->pos()))
         {
             if (mons->visible_to(&you))
             {
@@ -351,7 +351,7 @@ void trap_def::trigger(actor& triggerer, bool flat_footed)
     const bool trig_knows = !flat_footed && this->is_known(&triggerer);
 
     const bool you_trigger = (triggerer.atype() == ACT_PLAYER);
-    const bool in_sight = see_cell(this->pos);
+    const bool in_sight = observe_cell(this->pos);
 
     // If set, the trap will be removed at the end of the
     // triggering process.
@@ -1139,7 +1139,7 @@ void trap_def::shoot_ammo(actor& act, bool was_known)
     {
         if (was_known && act.atype() == ACT_PLAYER)
             mpr("The trap is out of ammunition!");
-        else if (player_can_hear(this->pos) && see_cell(this->pos))
+        else if (player_can_hear(this->pos) && observe_cell(this->pos))
             mpr("You hear a soft click.");
 
         this->disarm();
@@ -1228,7 +1228,7 @@ void trap_def::shoot_ammo(actor& act, bool was_known)
             // Determine whether projectile hits.
             bool hit = (trap_hit >= act.melee_evasion(NULL));
 
-            if (see_cell(act.pos()))
+            if (observe_cell(act.pos()))
             {
                 mprf("%s %s %s%s!",
                      shot.name(DESC_CAP_A).c_str(),