Merge pull request #115 from tmickel/feature/2.0-loader

Start of a 2.0 project loader

src/engine/runtime.js

@@ -18,9 +18,8 @@ var defaultBlockPackages = {
 
 /**
  * Manages targets, scripts, and the sequencer.
- * @param {!Array.<Target>} targets List of targets for this runtime.
  */
-function Runtime (targets) {
+function Runtime () {
     // Bind event emitter
     EventEmitter.call(this);
 
@@ -28,8 +27,9 @@ function Runtime (targets) {
 
     /**
      * Target management and storage.
+     * @type {Array.<!Target>}
      */
-    this.targets = targets;
+    this.targets = [];
 
     /**
      * A list of threads that are currently running in the VM.
@@ -418,6 +418,20 @@ Runtime.prototype.targetForThread = function (thread) {
     }
 };
 
+/**
+ * Get a target by its id.
+ * @param {string} targetId Id of target to find.
+ * @return {?Target} The target, if found.
+ */
+Runtime.prototype.getTargetById = function (targetId) {
+    for (var i = 0; i < this.targets.length; i++) {
+        var target = this.targets[i];
+        if (target.id == targetId) {
+            return target;
+        }
+    }
+};
+
 /**
  * Handle an animation frame from the main thread.
  */