HTML for salting the seed

diff --git a/PLAN.org b/PLAN.org
index 6db6e52..613c3a6 100644 (file)
--- a/PLAN.org
+++ b/PLAN.org
@@ -49,7 +49,7 @@ That one's probably never going to be DONE ^^'
 * DONE initial model parametrization
 * DONE view parameterization?
 * DONE troll races
-* TODO html for salting the seed
+* DONE html for salting the seed
 * BUGS
 ** viewer goes blank <2020-06-03 mer. 22:58>
 (22:19:12) Astrobytes: JBM, if you're around, the TVC viewer goes blank after a couple of games. Consistently. In Chrome. Other games not doing the same.

diff --git a/config/statement_en.html b/config/statement_en.html
index b5f784b..a63199a 100644 (file)
--- a/config/statement_en.html
+++ b/config/statement_en.html
@@ -207,6 +207,37 @@
        </div>
      </div>
    </div>
+   <div class="statement-section statement-examples">
+     <h2>
+       <span class="icon icon-example">&nbsp;</span>
+       <span>Proper RNG seeding examples</span>
+     </h2>
+     <table>
+       <tr>
+         <th style="border-bottom: 2px dashed #f2bb13;">Language Family</th>
+         <th style="border-bottom: 2px dashed #f2bb13;">Sample</th>
+       </tr>
+       <tr>
+         <td style="border-bottom: 1px dashed #f2bb13;">JVM</td>
+         <td style="border-bottom: 1px dashed #f2bb13;"><code>
+             long mySecretSalt = 0x4242424242424242L;<br>
+             Random random = new Random(gameSeed ^ gameSide ^ mySecretSalt);
+         </code></td>
+       </tr>
+       <tr>
+         <td style="border-bottom: 1px dashed #f2bb13;">C, C++, Perl&hellip;</td>
+         <td style="border-bottom: 1px dashed #f2bb13;"><code>
+             srand(gameSeed ^ gameSide ^ 0xdeadb33f);<br>
+             std::srand(gameSeed ^ gameSide ^ 12345);<br>
+             srand( $gameSeed ^ $gameSide ^ 0xCAFE_BABE );
+         </code></td>
+       </tr>
+       <tr>
+         <td style="border-bottom: 1px dashed #f2bb13;">Other</td>
+         <td style="border-bottom: 1px dashed #f2bb13;">Unachievable until proven otherwise</td>
+       </tr>
+     </table>
+   </div>
    <div class="statement-section statement-expertrules">
      <h2>
        <span class="icon icon-expertrules">&nbsp;</span>

diff --git a/src/test/java/PlayerRand.java b/src/test/java/PlayerRand.java
index 4dc9103..a29f16d 100644 (file)
--- a/src/test/java/PlayerRand.java
+++ b/src/test/java/PlayerRand.java
@@ -11,11 +11,14 @@ public class PlayerRand {
     };
     public static void main(String[] args) {
         Scanner in = new Scanner(System.in);
-        Random random = new Random();
 
         int roadLength = in.nextInt();
         int initialStones = in.nextInt();
+        long gameSeed = in.nextLong();
+        int gameSide = in.nextInt();
         in.nextLine();
+        long mySecretSalt = 0x4242424242424242L;
+        Random random = new Random(gameSeed ^ gameSide ^ mySecretSalt);
 
         while (true) {
             int trollDistance = in.nextInt();