我正在尝试使用 Famo.us 物理引擎制作一些示例。
我试过一个春天的例子。我认为旋转弹簧可能与它相似,所以我正在尝试这样做,但这对我来说并不容易。
这是使用旋转弹簧的示例,但它不起作用
var Engine = require("famous/core/Engine");
var Surface = require("famous/core/Surface");
var ImageSurface = require("famous/surfaces/ImageSurface");
var Modifier = require("famous/core/Modifier");
var Transform = require("famous/core/Transform");
var Transitionable = require("famous/transitions/Transitionable");
var PhysicsEngine = require("famous/physics/PhysicsEngine");
var Spring = require("famous/physics/forces/Spring");
var RotationalSpring = require("famous/physics/forces/RotationalSpring");
var Particle = require("famous/physics/bodies/Particle");
var Body = require("famous/physics/bodies/Body");
var Constraint = require("famous/physics/constraints/Constraint");
var MouseSync = require("famous/inputs/MouseSync");
var mainContext = Engine.createContext();
var PE = new PhysicsEngine();
content.particle = new Particle({
mass: 1,
position: [0, 0, 0],
velocity: [0, 0, 0],
axis : 0x01 //0x01 : Particle.AXES.y
});
// Create a spring that will act on the particle
var rotationalSpring = new RotationalSpring({
anchor: [0, 0, 0],
period: 400, // <= Play with these values :-)
dampingRatio: 0.07, // <= if 0 then just once / else if 1 then infinite
length: 0
});
// Link the spring, particle and surface together
PE.attach(rotationalSpring, content.particle);
PE.addBody(content.particle);
var translateMod = new Modifier({ origin: [.5,.5] });
//Get Mouse input
var position = [0, 0];
var mouseSync = new MouseSync(function() {
return position;
});
Engine.pipe(mouseSync);
// Get start when there is a Mouse input
mouseSync.on("start", function() {
FaceSequence.particle.applyForce(new Vector(0, 1.0, 0));
});
translateMod.transformFrom(function() {
var transM = FaceSequence.particle.getTransform();
return transM;
});
我怎样才能让它工作?:)