Identify players by a unique ID and no more by their name, so that when you rename a player game slots are no longer so confused. This is a somewhat painful change, please report any breakage

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@11146 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/utils/string_utils.cpp

@@ -620,6 +620,18 @@ namespace StringUtils
         return output.str();
     }   // encodeToHtmlEntities
 
+    // ------------------------------------------------------------------------
+    
+    unsigned int simpleHash(const char* input)
+    {
+         int hash = 0;
+         for (int n=0; input[n] != 0; n++)
+         {
+            hash += (hash << (hash & 0xF)) ^ input[n];
+         }
+         
+         return hash;
+    }
 } // namespace StringUtils