From 37ae1353fb4ef6013b688b28cd82f06182ad3063 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Tue, 25 Mar 2003 05:28:10 +0000
Subject: Add support for high score tables, including the ability to generate
 a (hopefully) unique ID for each game that we can use to match identical
 records.

---
 keyboard.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'keyboard.c')

diff --git a/keyboard.c b/keyboard.c
index 06d57b9..69f4732 100644
--- a/keyboard.c
+++ b/keyboard.c
@@ -26,6 +26,12 @@ static int queuedkeys = 0;
  */
 void push_key(SDL_KeyboardEvent *ke)
 {
+  /* Hack to add some nondeterminism into the gameid's */
+  if ( !gp.have_id ) {
+    gp.gameid = (gp.gameid << 5 | gp.gameid >> 59)
+      + ((uint64_t)SDL_GetTicks() << 32) + genrand_int32();
+  }
+
   if ( queuedkeys >= KEYQUEUELEN )
     return;			/* Drop it */
 
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