Rock-paper-scissors: Difference between revisions

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 =={{header|Sidef}}==
 <lang ruby>const rps = %w(r p s);
 const msg = [
     "Rock breaks scissors",
@@ Line 3,961: / Line 3,961: @@
     "Scissors cut paper",
 ];
 say <<"EOT";
 \n>> Rock Paper Scissors <<\n
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 ** Running score shown as <your wins>:<my wins>
 EOT
 var plays   = 0;
 var aScore  = 0;
@@ Line 3,974: / Line 3,974: @@
 var pcf     = [0,0,0];      # pcf = player choice frequency
 var aChoice = 3.rand.int;   # ai choice for first play is completely random
 loop {
     var pi = Sys.scanln("Play: ");
     pi == 'q' && break;
     var pChoice = rps.index(pi);
     if (pChoice == -1) {
         STDERR.print("Invalid input!\n");
         next;
     }
-    pcf[pChoice]++;
+    ++pcf[pChoice];
-    plays++;
+    ++plays;
     # show result of play
-    ">> My play: %-8s".printf(rps[aChoice]);
+    ">> My play: %-8s".printf(rps[aChoice]);
-    given ((aChoice - pChoice + 3) % 3)
+    given ((aChoice - pChoice + 3) % 3) {
-        when (0) {
+        when (0) { say "Tie." }
+        when (1) { "%-*s %s".printlnf(30, msg[aChoice], 'My point'); aScore++ }
-            say "Tie.";
+        when (2) { "%-*s %s".printlnf(30, msg[pChoice], 'Your point'); pScore++ }
-        }
-        when (1) {
+    }
-            "%-*s %s".printlnf(30, msg[aChoice], 'My point');
-            aScore++;
-        }
-        when (2) {
-            "%-*s %s".printlnf(30, msg[pChoice], 'Your point');
-            pScore++;
-        };
     # show score
     "%-6s".printf("%d:%d" % (pScore, aScore));
     # compute ai choice for next play
-    switch (var rn = (plays.rand.int))
+    given (var rn = (plays.rand.int)) {
-        case (rn < pcf[0]) {
+        when (rn < pcf[0])        { aChoice = 1 }
-            aChoice = 1;
+        when (pcf[0]+pcf[1] > rn) { aChoice = 2 }
+        default                   { aChoice = 0 }
-        }
+    }
-        case (pcf[0]+pcf[1] > rn) {
-            aChoice = 2;
-        }
-        default {
-            aChoice = 0;
-        };
 }</lang>