Fix beam animations leaking information about unknown beam types.

Backport AltGr fix for Tiles.


git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/branches/stone_soup-0.5@10359 c06c8d41-db1a-0410-9941-cceddc491573

1 files changed, 17 insertions, 6 deletions

diff --git a/crawl-ref/source/beam.cc b/crawl-ref/source/beam.cc
index 7e936bb4c6..30291690b4 100644
--- a/crawl-ref/source/beam.cc
+++ b/crawl-ref/source/beam.cc
@@ -131,13 +131,13 @@ kill_category bolt::whose_kill() const
 
 // A simple animated flash from Rupert Smith (expanded to be more
 // generic).
-void zap_animation(int colour, const monsters *mon, bool force)
+static void _zap_animation(int colour, const monsters *mon, bool force)
 {
     coord_def p = you.pos();
 
     if (mon)
     {
-        if (!force && !player_monster_visible( mon ))
+        if (!force && !player_monster_visible(mon))
             return;
 
         p = mon->pos();
@@ -181,7 +181,7 @@ static void _ench_animation( int flavour, const monsters *mon, bool force )
                         || flavour == BEAM_BLINK)    ? ETC_WARP
                                                      : ETC_ENCHANT;
 
-    zap_animation(element_colour(elem), mon, force);
+    _zap_animation(element_colour(elem), mon, force);
 }
 
 // If needs_tracer is true, we need to check the beam path for friendly
@@ -1586,7 +1586,12 @@ void bolt::draw(const coord_def& p)
 
 #ifdef USE_TILE
     if (tile_beam == -1)
-        tile_beam = tileidx_bolt(*this);
+    {
+        if (effect_known)
+            tile_beam = tileidx_bolt(*this);
+        else
+            tile_beam = tileidx_zap(ETC_MAGIC);
+    }
 
     if (tile_beam != -1 && in_los_bounds(drawpos))
     {
@@ -3559,7 +3564,10 @@ void bolt::affect_player_enchantment()
     }
 
     // You didn't resist it.
-    _ench_animation( real_flavour );
+    if (effect_known)
+        _ench_animation(real_flavour);
+    else
+        _zap_animation(-1);
 
     bool nasty = true, nice = false;
 
@@ -4253,7 +4261,10 @@ void bolt::enchantment_affect_monster(monsters* mon)
 
     // Doing this here so that the player gets to see monsters
     // "flicker and vanish" when turning invisible....
-    _ench_animation( real_flavour, mon );
+    if (effect_known)
+        _ench_animation( real_flavour, mon );
+    else
+        _zap_animation(-1, mon, false);
 
     // Try to hit the monster with the enchantment.
     const mon_resist_type ench_result = try_enchant_monster(mon);