added "random" option for "go to", "point towards" and "point in direction" primitives

blocks.js

@@ -148,7 +148,7 @@ CustomCommandBlockMorph, SymbolMorph, ToggleButtonMorph, DialMorph*/
 
 // Global stuff ////////////////////////////////////////////////////////
 
-modules.blocks = '2018-February-15';
+modules.blocks = '2018-March-09';
 
 var SyntaxElementMorph;
 var BlockMorph;
@@ -938,7 +938,8 @@ SyntaxElementMorph.prototype.labelPart = function (spec) {
                     '(90) right' : 90,
                     '(-90) left' : -90,
                     '(0) up' : '0',
-                    '(180) down' : 180
+                    '(180) down' : 180,
+                    'random' : ['random']
                 }
             );
             part.setContents(90);
@@ -1095,6 +1096,14 @@ SyntaxElementMorph.prototype.labelPart = function (spec) {
                 true
             );
             break;
+        case '%trg': // target selection
+            part = new InputSlotMorph(
+                null,
+                false,
+                'targetsMenu',
+                true
+            );
+            break;
         case '%cln': // clones
             part = new InputSlotMorph(
                 null,
@@ -2095,6 +2104,7 @@ SyntaxElementMorph.prototype.endLayout = function () {
     %spr    - chameleon colored rectangular drop-down for object-names
     %col    - chameleon colored rectangular drop-down for collidables
     %dst    - chameleon colored rectangular drop-down for distances
+    %trg    - chameleon colored rectangular drop-down for target destinations
     %cst    - chameleon colored rectangular drop-down for costume-names
     %eff    - chameleon colored rectangular drop-down for graphic effects
     %snd    - chameleon colored rectangular drop-down for sound names
@@ -8432,6 +8442,17 @@ InputSlotMorph.prototype.distancesMenu = function () {
     return dict;
 };
 
+InputSlotMorph.prototype.targetsMenu = function () {
+    var dict = {
+            'random position' : ['random position']
+        },
+        dst = this.distancesMenu();
+    Object.keys(dst).forEach(function (dstName) {
+    	dict[dstName] = dst[dstName];
+    });
+	return dict;
+};
+
 InputSlotMorph.prototype.clonablesMenu = function () {
     var dict = {},
         rcvr = this.parentThatIsA(BlockMorph).scriptTarget(),

history.txt

@@ -4015,3 +4015,7 @@ Translation Updates:
 ------
 * Objects: fixed #2053
 * GUI: fixed #2052
+
+180309
+------
+* Blocks, Objects, Threads: added "random" option for "go to", "point towards" and "point in direction" primitives

objects.js

@@ -83,7 +83,7 @@ BlockEditorMorph, BlockDialogMorph, PrototypeHatBlockMorph, localize,
 TableMorph, TableFrameMorph, normalizeCanvas, BooleanSlotMorph, HandleMorph,
 AlignmentMorph, Process*/
 
-modules.objects = '2018-March-08';
+modules.objects = '2018-March-09';
 
 var SpriteMorph;
 var StageMorph;
@@ -209,7 +209,7 @@ SpriteMorph.prototype.initBlocks = function () {
             only: SpriteMorph,
             type: 'command',
             category: 'motion',
-            spec: 'point towards %dst'
+            spec: 'point towards %trg'
         },
         gotoXY: {
             only: SpriteMorph,
@@ -222,7 +222,7 @@ SpriteMorph.prototype.initBlocks = function () {
             only: SpriteMorph,
             type: 'command',
             category: 'motion',
-            spec: 'go to %dst'
+            spec: 'go to %trg'
         },
         doGlide: {
             only: SpriteMorph,

threads.js

@@ -61,7 +61,7 @@ StageMorph, SpriteMorph, StagePrompterMorph, Note, modules, isString, copy,
 isNil, WatcherMorph, List, ListWatcherMorph, alert, console, TableMorph,
 TableFrameMorph, ColorSlotMorph, isSnapObject*/
 
-modules.threads = '2018-March-05';
+modules.threads = '2018-March-09';
 
 var ThreadManager;
 var Process;
@@ -3002,6 +3002,17 @@ Process.prototype.getObjectsNamed = function (name, thisObj, stageObj) {
     return those;
 };
 
+Process.prototype.setHeading = function (direction) {
+    var thisObj = this.blockReceiver();
+
+    if (thisObj) {
+        if (this.inputOption(direction) === 'random') {
+            direction = this.reportRandom(1, 36000) / 100;
+        }
+		thisObj.setHeading(direction);
+    }
+};
+
 Process.prototype.doFaceTowards = function (name) {
     var thisObj = this.blockReceiver(),
         thatObj;
@@ -3009,6 +3020,8 @@ Process.prototype.doFaceTowards = function (name) {
     if (thisObj) {
         if (this.inputOption(name) === 'mouse-pointer') {
             thisObj.faceToXY(this.reportMouseX(), this.reportMouseY());
+        } if (this.inputOption(name) === 'random position') {
+        	thisObj.setHeading(this.reportRandom(1, 36000) / 100);
         } else {
             if (name instanceof List) {
                 thisObj.faceToXY(
@@ -3030,11 +3043,20 @@ Process.prototype.doFaceTowards = function (name) {
 
 Process.prototype.doGotoObject = function (name) {
     var thisObj = this.blockReceiver(),
-        thatObj;
+        thatObj,
+        stage;
 
     if (thisObj) {
         if (this.inputOption(name) === 'mouse-pointer') {
             thisObj.gotoXY(this.reportMouseX(), this.reportMouseY());
+        } else if (this.inputOption(name) === 'random position') {
+	        stage = thisObj.parentThatIsA(StageMorph);
+    	    if (stage) {
+         		thisObj.setCenter(new Point(
+					this.reportRandom(stage.left(), stage.right()),
+                    this.reportRandom(stage.top(), stage.bottom())
+                ));
+         	}
         } else {
             if (name instanceof List) {
                 thisObj.gotoXY(