changed world.gravity to engine.gravity

examples/compositeManipulation.js

@@ -47,7 +47,7 @@ Example.compositeManipulation = function() {
 
  Composite.add(world, stack);
 
- world.gravity.y = 0;
+ engine.gravity.y = 0;
 
  Events.on(engine, 'afterUpdate', function(event) {
  var time = engine.timing.timestamp;
@@ -107,7 +107,7 @@ Example.compositeManipulation = function() {
 };
 
 Example.compositeManipulation.title = 'Composite Manipulation';
-Example.compositeManipulation.for = '>=0.14.2';
+Example.compositeManipulation.for = '>0.16.1';
 
 if (typeof module !== 'undefined') {
  module.exports = Example.compositeManipulation;

examples/doublePendulum.js

@@ -52,7 +52,7 @@ Example.doublePendulum = function() {
  });
  });
 
- world.gravity.scale = 0.002;
+ engine.gravity.scale = 0.002;
 
  Composites.chain(pendulum, 0.45, 0, -0.45, 0, { 
  stiffness: 0.9, 
@@ -148,7 +148,7 @@ Example.doublePendulum = function() {
 };
 
 Example.doublePendulum.title = 'Double Pendulum';
-Example.doublePendulum.for = '>=0.14.2';
+Example.doublePendulum.for = '>0.16.1';
 
 if (typeof module !== 'undefined') {
  module.exports = Example.doublePendulum;

examples/gravity.js

@@ -41,7 +41,7 @@ Example.gravity = function() {
  Bodies.rectangle(0, 300, 50, 600, { isStatic: true })
  ]);
 
- engine.world.gravity.y = -1;
+ engine.gravity.y = -1;
 
  var stack = Composites.stack(50, 120, 11, 5, 0, 0, function(x, y) {
  switch (Math.round(Common.random(0, 1))) {
@@ -97,7 +97,7 @@ Example.gravity = function() {
 };
 
 Example.gravity.title = 'Reverse Gravity';
-Example.gravity.for = '>=0.14.2';
+Example.gravity.for = '>0.16.1';
 
 if (typeof module !== 'undefined') {
  module.exports = Example.gravity;

examples/gyro.js

@@ -71,7 +71,7 @@ Example.gyro = function() {
  if (typeof window !== 'undefined') {
  var updateGravity = function(event) {
  var orientation = typeof window.orientation !== 'undefined' ? window.orientation : 0,
- gravity = engine.world.gravity;
+ gravity = engine.gravity;
 
  if (orientation === 0) {
  gravity.x = Common.clamp(event.gamma, -90, 90) / 90;

src/core/Engine.js

@@ -44,6 +44,11 @@ var Body = require('../body/Body');
  events: [],
  plugin: {},
  grid: null,
+ gravity: {
+ x: 0,
+ y: 1,
+ scale: 0.001
+ },
  timing: {
  timestamp: 0,
  timeScale: 1
@@ -57,6 +62,7 @@ var Body = require('../body/Body');
  engine.pairs = Pairs.create();
 
  // temporary back compatibility
+ engine.world.gravity = engine.gravity;
  engine.broadphase = engine.grid;
  engine.metrics = {};
 
@@ -107,7 +113,7 @@ var Body = require('../body/Body');
  Sleeping.update(allBodies, timing.timeScale);
 
  // applies gravity to all bodies
- Engine._bodiesApplyGravity(allBodies, world.gravity);
+ Engine._bodiesApplyGravity(allBodies, engine.gravity);
 
  // update all body position and rotation by integration
  Engine._bodiesUpdate(allBodies, delta, timing.timeScale, correction, world.bounds);
@@ -451,4 +457,35 @@ var Body = require('../body/Body');
  * @type {}
  */
 
+ /**
+ * The gravity to apply on all bodies in `engine.world`.
+ *
+ * @property gravity
+ * @type object
+ */
+
+ /**
+ * The gravity x component.
+ *
+ * @property gravity.x
+ * @type object
+ * @default 0
+ */
+
+ /**
+ * The gravity y component.
+ *
+ * @property gravity.y
+ * @type object
+ * @default 1
+ */
+
+ /**
+ * The gravity scale factor.
+ *
+ * @property gravity.scale
+ * @type object
+ * @default 0.001
+ */
+
 })();