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added Body.set

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liabru 2014-12-28 18:35:01 +00:00
parent 8dea1666f7
commit 235b6c8336
1 changed files with 76 additions and 11 deletions
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87
src/body/Body.js
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@ -98,23 +98,26 @@ var Body = {};
*/
var _initProperties = function(body, options) {
// init required properties
body.bounds = body.bounds || Bounds.create(body.vertices);
body.positionPrev = body.positionPrev || Vector.clone(body.position);
body.anglePrev = body.anglePrev || body.angle;
Body.set(body, {
bounds: body.bounds || Bounds.create(body.vertices),
positionPrev: body.positionPrev || Vector.clone(body.position),
anglePrev: body.anglePrev || body.angle,
vertices: body.vertices,
isStatic: body.isStatic,
isSleeping: body.isSleeping
});
// must use setters for the more complicated properties
Body.setVertices(body, body.vertices);
Body.setStatic(body, body.isStatic);
Sleeping.set(body, body.isSleeping);
Vertices.rotate(body.vertices, body.angle, body.position);
Axes.rotate(body.axes, body.angle);
Bounds.update(body.bounds, body.vertices, body.velocity);
// allow options to override the automatically calculated properties
body.axes = options.axes || body.axes;
body.area = options.area || body.area;
Body.setMass(body, options.mass || body.mass);
Body.setInertia(body, options.inertia || body.inertia);
Body.set(body, {
axes: options.axes || body.axes,
area: options.area || body.area,
mass: options.mass || body.mass,
inertia: options.inertia || body.inertia
});
// render properties
var defaultFillStyle = (body.isStatic ? '#eeeeee' : Common.choose(['#556270', '#4ECDC4', '#C7F464', '#FF6B6B', '#C44D58'])),
@ -123,6 +126,68 @@ var Body = {};
body.render.strokeStyle = body.render.strokeStyle || defaultStrokeStyle;
};
/**
* Given a property and a value (or map of), sets the property(s) on the body, using the appropriate setter functions if they exist.
* Prefer to use the actual setter functions in performance critical situations.
* @method set
* @param {body} body
* @param {} settings A property name (or map of properties and values) to set on the body.
* @param {} value The value to set if `settings` is a single property name.
*/
Body.set = function(body, settings, value) {
var property;
if (typeof settings === 'string') {
property = settings;
settings = {};
settings[property] = value;
}
for (property in settings) {
value = settings[property];
if (!settings.hasOwnProperty(property))
continue;
switch (property) {
case 'isStatic':
Body.setStatic(body, value);
break;
case 'isSleeping':
Sleeping.set(body, value);
break;
case 'mass':
Body.setMass(body, value);
break;
case 'density':
Body.setDensity(body, value);
break;
case 'inertia':
Body.setInertia(body, value);
break;
case 'vertices':
Body.setVertices(body, value);
break;
case 'position':
Body.setPosition(body, value);
break;
case 'angle':
Body.setAngle(body, value);
break;
case 'velocity':
Body.setVelocity(body, value);
break;
case 'angularVelocity':
Body.setAngularVelocity(body, value);
break;
default:
body[property] = value;
}
}
};
/**
* Sets the body as static, including isStatic flag and setting mass and inertia to Infinity.
* @method setStatic