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Code Issues Wiki Activity

added Demo.staticFriction

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liabru 2015-05-09 21:05:07 +01:00
parent de4784c492
commit 4491dfd5f4
2 changed files with 45 additions and 4 deletions
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1
demo/dev.html
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@ -67,6 +67,7 @@
<option value="restitution">Restitution</option>
<option value="friction">Friction</option>
<option value="airFriction">Air Friction</option>
<option value="staticFriction">Static Friction</option>
<option value="sleeping">Sleeping</option>
<option value="broadphase">Grid Broadphase</option>
<option value="beachBalls">Beach Balls</option>

48
demo/js/Demo.js
View file

@ -775,8 +775,8 @@
]);
var renderOptions = _engine.render.options;
renderOptions.showAngleIndicator = true;
renderOptions.showCollisions = true;
renderOptions.showAngleIndicator = false;
renderOptions.showVelocity = true;
};
Demo.airFriction = function() {
@ -791,8 +791,48 @@
]);
var renderOptions = _engine.render.options;
renderOptions.showAngleIndicator = true;
renderOptions.showCollisions = true;
renderOptions.showAngleIndicator = false;
renderOptions.showVelocity = true;
};
Demo.staticFriction = function() {
var _world = _engine.world;
Demo.reset();
var body = Bodies.rectangle(400, 500, 200, 60, { isStatic: true, chamfer: 10 }),
size = 50,
counter = -1;
var stack = Composites.stack(350, 470 - 6 * size, 1, 6, 0, 0, function(x, y, column, row) {
return Bodies.rectangle(x, y, size * 2, size, {
slop: 0.5,
friction: 1,
frictionStatic: Infinity
});
});
World.add(_world, [body, stack]);
_sceneEvents.push(
Events.on(_engine, 'beforeUpdate', function(event) {
counter += 0.014;
if (counter < 0) {
return;
}
var px = 400 + 100 * Math.sin(counter);
// body is static so must manually update velocity for friction to work
Body.setVelocity(body, { x: px - body.position.x, y: 0 });
Body.setPosition(body, { x: px, y: body.position.y });
})
);
var renderOptions = _engine.render.options;
renderOptions.showAngleIndicator = false;
renderOptions.showVelocity = true;
};
Demo.sleeping = function() {