Added doAsk and answer prims

js/Interpreter.js

@@ -40,6 +40,7 @@ var Thread = function(block, target) {
     this.tmp = null; // used for thread operations like Timer
     this.tmpObj = []; // used for Sprite operations like glide
     this.firstTime = true;
+	this.paused = false; // pausing thread for: ask
 }
 
 var Interpreter = function() {
@@ -104,7 +105,7 @@ Interpreter.prototype.stepThreads = function() {
         var threadStopped = false;
         for (var a = this.threads.length-1; a >= 0; --a) {
             this.activeThread = this.threads[a];
-            this.stepActiveThread();
+	        this.stepActiveThread();
             if (!this.activeThread || this.activeThread.nextBlock == null) {
                 threadStopped = true;
             }
@@ -132,14 +133,17 @@ Interpreter.prototype.stepActiveThread = function() {
     if (b == null) return;
     this.yield = false;
     while (true) {
-        this.opCount++;
+		if(this.activeThread.paused) return; // thread pausing allows asynchronous events to trigger program flow
+
         // Advance the "program counter" to the next block before running the primitive.
         // Control flow primitives (e.g. if) may change activeThread.nextBlock.
+        this.opCount++;
+
         this.activeThread.nextBlock = b.nextBlock;
         b.primFcn(b);
         if (this.yield) { this.activeThread.nextBlock = b; return; }
         b = this.activeThread.nextBlock; // refresh local variable b in case primitive did some control flow
-        while (b == null) {
+		while (b == null) {
             // end of a substack; pop the owning control flow block from stack
             // Note: This is a loop to handle nested control flow blocks. 
             b = this.activeThread.stack.pop();

js/primitives/SensingPrims.js

@@ -32,6 +32,9 @@ SensingPrims.prototype.addPrimsTo = function(primTable) {
 
     primTable['timeAndDate']  = function(b){ return runtime.getTimeString(interp.arg(b, 0)); };
     primTable['timestamp'] = this.primTimestamp;
+
+	primTable['doAsk'] = this.primDoAsk;
+	primTable['answer'] = this.primAnswer;
 }
 
 SensingPrims.prototype.primTouching = function(b) {
@@ -228,6 +231,27 @@ SensingPrims.prototype.primTimestamp = function(b) {
    return msSince / 86400000;
 }
 
+SensingPrims.prototype.primDoAsk = function(b){
+	console.log(b);
+	showBubble(b, 'say');
+	$("#container").append($('<div id="ask-box"><input type="text" id="answer"></input><input type="submit" id="answer-submit"></input>/div>'));
+	var activeThread = interp.threads.indexOf(interp.activeThread);
+
+	interp.activeThread.paused = true;
+
+
+	$("#answer-submit").bind("click", function(){
+		console.log(activeThread);
+		interp.threads[activeThread].paused = false;
+		SensingPrims._answer = $("#answer")[0].value;
+		$("#ask-box").remove(); // remove ask box
+	});
+};
+
+SensingPrims.prototype.primAnswer = function(b){
+	return SensingPrims._answer;
+};
+
 // Helpers
 SensingPrims.prototype.mouseOrSpritePosition = function(arg) {
     if (arg == "_mouse_") {

player.css

@@ -137,3 +137,9 @@
 
     background: url(img/think-bottom.png) transparent no-repeat;
 }
+
+#ask-box {
+	top: 340px;
+	position: absolute;
+	width: 400px;
+}