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Code Issues Wiki Activity

added composite events example to Demo.events

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liabru 2014-07-12 17:35:28 +01:00
parent 2841522f3b
commit 296d47e682
1 changed files with 42 additions and 24 deletions
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66
demo/js/Demo.js
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@ -994,32 +994,17 @@
var _world = _engine.world;
Demo.reset();
var stack = Composites.stack(50, 100, 8, 4, 50, 50, function(x, y, column, row) {
return Bodies.circle(x, y, 15, { restitution: 1, render: { strokeStyle: '#777' } });
});
World.add(_world, stack);
var renderOptions = _engine.render.options;
renderOptions.wireframes = false;
// bind events (_sceneEvents is only used for this demo)
var shakeScene = function(engine) {
var bodies = Composite.allBodies(engine.world);
_sceneEvents.push(
for (var i = 0; i < bodies.length; i++) {
var body = bodies[i];
// an example of using composite events on the world
Events.on(_world, 'afterAdd', function(event) {
console.log('added to world:', event.object);
})
if (!body.isStatic && body.position.y >= 500) {
var forceMagnitude = 0.01 * body.mass;
Body.applyForce(body, { x: 0, y: 0 }, {
x: (forceMagnitude + Common.random() * forceMagnitude) * Common.choose([1, -1]),
y: -forceMagnitude + Common.random() * -forceMagnitude
});
}
}
};
);
_sceneEvents.push(
@ -1084,7 +1069,7 @@
_sceneEvents.push(
// an example of using mouse events on an engine.input.mouse
// an example of using mouse events on a mouse
Events.on(_mouseConstraint, 'mousedown', function(event) {
var mousePosition = event.mouse.position;
console.log('mousedown at ' + mousePosition.x + ' ' + mousePosition.y);
@ -1096,7 +1081,7 @@
_sceneEvents.push(
// an example of using mouse events on an engine.input.mouse
// an example of using mouse events on a mouse
Events.on(_mouseConstraint, 'mouseup', function(event) {
var mousePosition = event.mouse.position;
_engine.render.options.background = "white";
@ -1104,6 +1089,34 @@
})
);
// scene code
var stack = Composites.stack(50, 100, 8, 4, 50, 50, function(x, y, column, row) {
return Bodies.circle(x, y, 15, { restitution: 1, render: { strokeStyle: '#777' } });
});
World.add(_world, stack);
var renderOptions = _engine.render.options;
renderOptions.wireframes = false;
var shakeScene = function(engine) {
var bodies = Composite.allBodies(engine.world);
for (var i = 0; i < bodies.length; i++) {
var body = bodies[i];
if (!body.isStatic && body.position.y >= 500) {
var forceMagnitude = 0.01 * body.mass;
Body.applyForce(body, { x: 0, y: 0 }, {
x: (forceMagnitude + Common.random() * forceMagnitude) * Common.choose([1, -1]),
y: -forceMagnitude + Common.random() * -forceMagnitude
});
}
}
};
};
Demo.sprites = function() {
@ -1335,6 +1348,11 @@
Events.off(_mouseConstraint, _sceneEvents[i]);
}
if (_world.events) {
for (i = 0; i < _sceneEvents.length; i++)
Events.off(_world, _sceneEvents[i]);
}
_sceneEvents = [];
// reset id pool