Experimental monster weapon swapping implementation. Allow monsters to use

throwing weapons (hand axes, spears, clubs, daggers).  Give orcs and orc
warriors a chance of being generated with throwing weapons (axes or spears).

Throwing weapons are stacked in monster inventory, but unstack when dropped.
We may want to consider fully stackable throwing weapons at some point.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1717 c06c8d41-db1a-0410-9941-cceddc491573

1 files changed, 23 insertions, 0 deletions

diff --git a/crawl-ref/source/stuff.cc b/crawl-ref/source/stuff.cc
index 615a21a18b..2f9d0c2bcf 100644
--- a/crawl-ref/source/stuff.cc
+++ b/crawl-ref/source/stuff.cc
@@ -21,6 +21,7 @@
 #include "stuff.h"
 #include "view.h"
 
+#include <cstdarg>
 #include <sstream>
 #include <iomanip>
 
@@ -192,6 +193,28 @@ int random_range(int low, int high)
     return (low + random2(high - low + 1));
 }
 
+int random_choose(int first, ...)
+{
+    va_list args;
+    va_start(args, first);
+
+    int chosen = first, count = 1, nargs = 100;
+
+    while (nargs-- > 0)
+    {
+        const int pick = va_arg(args, int);
+        if (pick == -1)
+            break;
+        if (one_chance_in(++count))
+            chosen = pick;
+    }
+
+    ASSERT(nargs > 0);
+    
+    va_end(args);
+    return (chosen);
+}
+
 int random2( int max )
 {
     if (max <= 1)