A few gaming features added, e.g. rolling dice, flipping coin, eightball.

static/skald.js

@@ -3106,6 +3106,12 @@ function addToChatbox(id, peerId, dest, nick, time, privileged, history, kind, m
     footer.classList.add('message-footer');
     if(!peerId)
         container.classList.add('message-system');
+    if(kind === 'dice' && privileged)
+        container.classList.add('message-dice');
+    if(kind === 'eightball' && privileged)
+        container.classList.add('message-eightball');
+    if(kind === 'coin' && privileged)
+        container.classList.add('message-coin');
     if(serverConnection && peerId === serverConnection.id)
         container.classList.add('message-sender');
     if(dest)
@@ -3314,6 +3320,9 @@ function clearChat(id, userId) {
  */
 let commands = {};
 
+const diceCommandRegexp =
+    /^\/\s*[0-9]+\s*[dD]\s*[0-9]+(?:\s*[+-]\s*[0-9]+)?\s*$/;
+
 function operatorPredicate() {
     if(serverConnection && serverConnection.permissions &&
        serverConnection.permissions.indexOf('op') >= 0)
@@ -3348,6 +3357,7 @@ commands.help = {
                 continue;
             cs.push(`/${cmd}${c.parameters?' ' + c.parameters:''}: ${c.description}`);
         }
+        cs.push('/NdS [ +|- modifier]: roll dice; spaces and uppercase D are allowed');
         let shortcuts = '\n\nKeyboard shortcuts:\n' +
             'Control+Alt+H or Alt+Shift+H: Raise or lower hand\n' +
             'Control+Alt+C or Alt+Shift+C: Expand or collapse chat\n' +
@@ -3356,6 +3366,27 @@ commands.help = {
     }
 };
 
+function eightBallCommand(c, r) {
+    serverConnection.hallAction('eightball', r);
+}
+
+commands['8ball'] = {
+    description: 'ask the Eight Ball a question',
+    parameters: 'question',
+    f: eightBallCommand,
+};
+
+commands.eightball = {
+    f: eightBallCommand,
+};
+
+commands.coin = {
+    description: 'flip a coin',
+    f: (c, r) => {
+        serverConnection.hallAction('coin', r);
+    },
+};
+
 commands.me = {
     f: (c, r) => {
         // handled as a special case
@@ -3968,6 +3999,14 @@ function handleInput() {
         if(data.length > 1 && data[1] === '/') {
             message = data.slice(1);
             me = false;
+        } else if(diceCommandRegexp.test(data)) {
+            try {
+                serverConnection.hallAction('roll', data.slice(1));
+            } catch(e) {
+                console.error(e);
+                displayError(e);
+            }
+            return;
         } else {
             let cmd, rest;
             let space = data.indexOf(' ');