An interBBS ANSI graffiti wall. Impress "The Scene" with your lackluster ANSI...

An interBBS ANSI graffiti wall.  Impress "The Scene" with your lackluster ANSI skillz - IN REALTIME!

xtrn/syncwall/syncwall.js

+// SyncWall InterBBS Graffiti Wall
+// by echicken -at- bbs.electronicchicken.com
+
+load("ansiedit.js");
+load("json-client.js");
+
+js.branch_limit = 0;
+
+var chDelay = 15;
+var server = "bbs.electronicchicken.com"
+var port = 10088;
+
+var monthYear = system.datestr().split("/");
+monthYear.splice(1, 1);
+monthYear = monthYear.join("");
+var ch;
+var pName;
+var lastUser = "";
+var lastSystem = "";
+var userInput = "";
+var bgColours = [ BG_BLUE, BG_CYAN, BG_GREEN, BG_MAGENTA, BG_RED, BG_BROWN ];
+
+var ansiClient = new JSONClient(server, port);
+ansiClient.callback = drawStuff;
+ansiClient.subscribe("syncwall", "canvas." + monthYear);
+
+var frame = new Frame(1, 1, 80, 24, BG_BLACK);
+var topBar = new Frame(1, 1, 80, 1, BG_BLUE|WHITE, frame);
+var bottomBar = new Frame(1, 24, 80, 1, BG_BLUE|WHITE, frame);
+topBar.putmsg(".: SyncWall InterBBS Graffiti Wall : Hit [ESC] to Exit :.");
+topBar.gotoxy(69, 1);
+topBar.putmsg("\1h\1bby echicken");
+frame.open();
+frame.cycle();
+var ansi = new ansiEdit(1, 2, 80, 22, BG_BLACK|LIGHTGRAY);
+
+function drawStuff(update) {
+	if(update.oper.toUpperCase() == "SUBSCRIBE" || update.oper.toUpperCase() == "UNSUBSCRIBE") return;
+	var location = update.location.split(".").shift().toUpperCase();
+	if(location != "CANVAS") return;
+	putCh(update.data);
+	return;
+}
+
+function putCh(ch) {
+	ansi.putChar(ch);
+	if(ch.userAlias != lastUser || ch.system != lastSystem) {
+		var randomAttr = bgColours[Math.floor(Math.random()*bgColours.length)]|WHITE;
+		bottomBar.attr = randomAttr;
+		bottomBar.clear();
+		bottomBar.putmsg(ch.userAlias + "@" + ch.system + " is drawing");
+		bottomBar.cycle();	
+		lastUser = ch.userAlias;
+		lastSystem = ch.system;
+	}
+	return;
+}
+
+// This may be needed if canvas data exceed's json-sock.js' receive limit
+/*
+var canvas = ansiClient.keys("syncwall", "canvas." + monthYear, 1);
+if(canvas !== undefined) {
+	for(var c = 0; c < canvas.length; c++) {
+		var ch = ansiClient.read("syncwall", "canvas." + monthYear + "." + canvas[c], 1);
+		putCh(ch);
+		mswait(chDelay);
+	}
+}
+*/
+// So if you uncomment the above section, comment out this next bit:
+var canvas = ansiClient.read("syncwall", "canvas." + monthYear, 1);
+if(canvas !== undefined) {
+	for(var c in canvas) {
+		putCh(canvas[c]);
+		mswait(chDelay);
+	}
+}
+// And stop commenting here.
+
+while(ascii(userInput) != 27) {
+	ansiClient.cycle();
+	userInput = console.inkey(K_NONE, 5);
+	if(userInput == "") continue;
+	ch = ansi.cycle(userInput);
+	if(!ch.ch) continue;
+	if(lastUser != user.alias || lastSystem != system.name) {
+		bottomBar.attr = BG_BLUE|WHITE;
+		bottomBar.clear();
+		bottomBar.putmsg("You are drawing");
+		bottomBar.cycle();
+		lastUser = user.alias;
+		lastSystem = system.name;
+	}
+	ch.userAlias = user.alias;
+	ch.system = system.name;
+	pName = base64_encode(user.alias) + system.timer.toString().split(".").join("");
+	ansiClient.write("syncwall", "canvas." + monthYear + "." + pName, ch, 2);
+}
+
+ansi.close();
+ansiClient.unsubscribe();
+ansiClient.disconnect();