Added PlaceOnCircle and PlaceOnLine Actions.

Author: photonstorm

v3/src/actions/PlaceOnCircle.js

@@ -0,0 +1,20 @@
+var PlaceOnCircle = function (items, circle, startAngle, endAngle)
+{
+    if (startAngle === undefined) { startAngle = 0; }
+    if (endAngle === undefined) { endAngle = 6.28; }
+
+    var angle = startAngle;
+    var angleStep = (endAngle - startAngle) / items.length;
+
+    for (var i = 0; i < items.length; i++)
+    {
+        items[i].x = circle.x + (circle.radius * Math.cos(angle));
+        items[i].y = circle.y + (circle.radius * Math.sin(angle));
+
+        angle += angleStep;
+    }
+
+    return items;
+};
+
+module.exports = PlaceOnCircle;

v3/src/actions/PlaceOnLine.js

@@ -0,0 +1,23 @@
+var GetPointsOnLine = require('../geom/line/GetPointsOnLine');
+
+var PlaceOnLine = function (items, line)
+{
+    var points = GetPointsOnLine(line);
+    var step = points.length / items.length;
+    var p = 0;
+
+    for (var i = 0; i < items.length; i++)
+    {
+        var item = items[i];
+        var point = points[Math.floor(p)];
+
+        item.x = point[0];
+        item.y = point[1];
+
+        p += step;
+    }
+
+    return items;
+};
+
+module.exports = PlaceOnLine;

v3/src/actions/index.js

@@ -9,7 +9,8 @@ module.exports = {
     IncX: require('./IncX'),
     IncXY: require('./IncXY'),
     IncY: require('./IncY'),
-    PositionAroundCircle: require('./PositionAroundCircle'),
+    PlaceOnCircle: require('./PlaceOnCircle'),
+    PlaceOnLine: require('./PlaceOnLine'),
     RandomCircle: require('./RandomCircle'),
     RandomEllipse: require('./RandomEllipse'),
     RandomLine: require('./RandomLine'),

v3/src/checksum.js

@@ -1,4 +1,4 @@
 var CHECKSUM = {
-build: '02229ca0-1488-11e7-8e2a-13177b968951'
+build: 'b43cf770-1490-11e7-8aea-037f4d5a79de'
 };
 module.exports = CHECKSUM;

v3/src/gameobjects/layer/Layer.js

@@ -217,9 +217,16 @@ var Layer = new Class({
         return this;
     },
 
-    positionAroundCircle: function (circle, startAngle, endAngle)
+    placeOnCircle: function (circle, startAngle, endAngle)
     {
-        Actions.PositionAroundCircle(this.children.entries, circle, startAngle, endAngle);
+        Actions.PlaceOnCircle(this.children.entries, circle, startAngle, endAngle);
+
+        return this;
+    },
+
+    placeOnLine: function (line)
+    {
+        Actions.PlaceOnLine(this.children.entries, line);
 
         return this;
     },

v3/src/geom/rectangle/PerimeterPoint.js

@@ -1,6 +1,6 @@
 var MATH_CONST = require('../../math/const');
 
-//  deg = degrees
+//  deg = degrees (0-360)
 
 var PerimeterPoint = function (rect, deg, out)
 {