为什么这个文件没有运行example5.js中的javascript？
我在网上找到了这个代码。我粘贴到记事本+，然后更改这两个文件以匹配我在桌面上创建的文件为什么这个文件没有运行example5.js中的javascript？,javascript,box2dweb,Javascript,Box2dweb,我在网上找到了这个代码。我粘贴到记事本+，然后更改这两个文件以匹配我在桌面上创建的文件 <script src='C:/Users/home-1/Desktop/Box2dWeb-2.1.a.3.js'></script> <script src='C:/Users/home-1/Desktop/example5.js'></script> 然后创建了example5.js文件，并将其放在我的桌面上。这将显示一个画布以及几个可以在屏幕上拖放的对象
<script src='C:/Users/home-1/Desktop/Box2dWeb-2.1.a.3.js'></script>
<script src='C:/Users/home-1/Desktop/example5.js'></script>
<!DOCTYPE HTML>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Mouse Joint</title>
<script src='C:/Users/home-1/Desktop/Box2dWeb-2.1.a.3.js'></script>
<script src='C:/Users/home-1/Desktop/example5.js'></script>
<style>
canvas
{
background-color:black;
}
</style>
</head>
<body>
<canvas id='b2dCanvas' width='1024' height='500'>Broswer does not
support Canvas Tag</canvas>
<script>
(function() {
var b2Vec2 = Box2D.Common.Math.b2Vec2;
var b2BodyDef = Box2D.Dynamics.b2BodyDef;
var b2Body = Box2D.Dynamics.b2Body;
var b2FixtureDef = Box2D.Dynamics.b2FixtureDef;
var b2Fixture = Box2D.Dynamics.b2Fixture;
var b2World = Box2D.Dynamics.b2World;
var b2MassData = Box2D.Collision.Shapes.b2MassData;
var b2PolygonShape = Box2D.Collision.Shapes.b2PolygonShape;
var b2CircleShape = Box2D.Collision.Shapes.b2CircleShape;
var b2DebugDraw = Box2D.Dynamics.b2DebugDraw;
var Physics = window.Physics = function(element,scale) {
var gravity = new b2Vec2(0,9.8);
this.world = new b2World(gravity, true);
this.element = element;
this.context = element.getContext("2d");
this.scale = scale || 20;
this.dtRemaining = 0;
this.stepAmount = 1/60;
};
Physics.prototype.debug = function() {
this.debugDraw = new b2DebugDraw();
this.debugDraw.SetSprite(this.context);
this.debugDraw.SetDrawScale(this.scale);
this.debugDraw.SetFillAlpha(0.3);
this.debugDraw.SetLineThickness(1.0);
this.debugDraw.SetFlags(b2DebugDraw.e_shapeBit | b2DebugDraw.e_jointBit);
this.world.SetDebugDraw(this.debugDraw);
};
Physics.prototype.step = function(dt) {
this.dtRemaining += dt;
while(this.dtRemaining > this.stepAmount) {
this.dtRemaining -= this.stepAmount;
this.world.Step(this.stepAmount,
10, // velocity iterations
10);// position iterations
}
if(this.debugDraw) {
this.world.DrawDebugData();
} else {
var obj = this.world.GetBodyList();
this.context.clearRect(0,0,this.element.width,this.element.height);
this.context.save();
this.context.scale(this.scale,this.scale);
while(obj) {
var body = obj.GetUserData();
if(body)
{
body.draw(this.context);
}
obj = obj.GetNext();
}
this.context.restore();
}
};
Physics.prototype.click = function(callback) {
var self = this;
function handleClick(e) {
e.preventDefault();
var point = {
x: (e.offsetX || e.layerX) / self.scale,
y: (e.offsetY || e.layerY) / self.scale
};
self.world.QueryPoint(function(fixture) {
callback(fixture.GetBody(),
fixture,
point);
},point);
}
this.element.addEventListener("mousedown",handleClick);
this.element.addEventListener("touchstart",handleClick);
};
Physics.prototype.dragNDrop = function() {
var self = this;
var obj = null;
var joint = null;
function calculateWorldPosition(e) {
return point = {
x: (e.offsetX || e.layerX) / self.scale,
y: (e.offsetY || e.layerY) / self.scale
};
}
this.element.addEventListener("mousedown",function(e) {
e.preventDefault();
var point = calculateWorldPosition(e);
self.world.QueryPoint(function(fixture) {
obj = fixture.GetBody().GetUserData();
},point);
});
this.element.addEventListener("mousemove",function(e) {
if(!obj) { return; }
var point = calculateWorldPosition(e);
if(!joint) {
var jointDefinition = new Box2D.Dynamics.Joints.b2MouseJointDef();
jointDefinition.bodyA = self.world.GetGroundBody();
jointDefinition.bodyB = obj.body;
jointDefinition.target.Set(point.x,point.y);
jointDefinition.maxForce = 100000;
jointDefinition.timeStep = self.stepAmount;
joint = self.world.CreateJoint(jointDefinition);
}
joint.SetTarget(new b2Vec2(point.x,point.y));
});
this.element.addEventListener("mouseup",function(e) {
obj = null;
if(joint) {
self.world.DestroyJoint(joint);
joint = null;
}
});
};
Physics.prototype.collision = function() {
this.listener = new Box2D.Dynamics.b2ContactListener();
this.listener.PostSolve = function(contact,impulse) {
var bodyA = contact.GetFixtureA().GetBody().GetUserData(),
bodyB = contact.GetFixtureB().GetBody().GetUserData();
if(bodyA.contact) { bodyA.contact(contact,impulse,true) }
if(bodyB.contact) { bodyB.contact(contact,impulse,false) }
};
this.world.SetContactListener(this.listener);
};
var Body = window.Body = function(physics,details) {
this.details = details = details || {};
// Create the definition
this.definition = new b2BodyDef();
// Set up the definition
for(var k in this.definitionDefaults) {
this.definition[k] = details[k] || this.definitionDefaults[k];
}
this.definition.position = new b2Vec2(details.x || 0, details.y || 0);
this.definition.linearVelocity = new b2Vec2(details.vx || 0, details.vy || 0);
this.definition.userData = this;
this.definition.type = details.type == "static" ? b2Body.b2_staticBody :
b2Body.b2_dynamicBody;
// Create the Body
this.body = physics.world.CreateBody(this.definition);
// Create the fixture
this.fixtureDef = new b2FixtureDef();
for(var l in this.fixtureDefaults) {
this.fixtureDef[l] = details[l] || this.fixtureDefaults[l];
}
details.shape = details.shape || this.defaults.shape;
switch(details.shape) {
case "circle":
details.radius = details.radius || this.defaults.radius;
this.fixtureDef.shape = new b2CircleShape(details.radius);
break;
case "polygon":
this.fixtureDef.shape = new b2PolygonShape();
this.fixtureDef.shape.SetAsArray(details.points,details.points.length);
break;
case "block":
default:
details.width = details.width || this.defaults.width;
details.height = details.height || this.defaults.height;
this.fixtureDef.shape = new b2PolygonShape();
this.fixtureDef.shape.SetAsBox(details.width/2,
details.height/2);
break;
}
this.body.CreateFixture(this.fixtureDef);
};
Body.prototype.defaults = {
shape: "block",
width: 4,
height: 4,
radius: 1
};
Body.prototype.fixtureDefaults = {
density: 2,
friction: 1,
restitution: 0.2
};
Body.prototype.definitionDefaults = {
active: true,
allowSleep: true,
angle: 0,
angularVelocity: 0,
awake: true,
bullet: false,
fixedRotation: false
};
Body.prototype.draw = function(context) {
var pos = this.body.GetPosition(),
angle = this.body.GetAngle();
context.save();
context.translate(pos.x,pos.y);
context.rotate(angle);
if(this.details.color) {
context.fillStyle = this.details.color;
switch(this.details.shape) {
case "circle":
context.beginPath();
context.arc(0,0,this.details.radius,0,Math.PI*2);
context.fill();
break;
case "polygon":
var points = this.details.points;
context.beginPath();
context.moveTo(points[0].x,points[0].y);
for(var i=1;i<points.length;i++) {
context.lineTo(points[i].x,points[i].y);
}
context.fill();
break;
case "block":
context.fillRect(-this.details.width/2,
-this.details.height/2,
this.details.width,
this.details.height);
default:
break;
}
}
if(this.details.image) {
context.drawImage(this.details.image,
-this.details.width/2,
-this.details.height/2,
this.details.width,
this.details.height);
}
context.restore();
}
var physics,
lastFrame = new Date().getTime();
window.gameLoop = function() {
var tm = new Date().getTime();
requestAnimationFrame(gameLoop);
var dt = (tm - lastFrame) / 1000;
if(dt > 1/15) { dt = 1/15; }
physics.step(dt);
lastFrame = tm;
};
function init() {
var img = new Image();
// Wait for the image to load
img.addEventListener("load", function() {
physics = window.physics = new Physics(document.getElementById("b2dCanvas"));
physics.collision();
// Create some walls
new Body(physics, { color: "red", type: "static", x: 0, y: 0, height: 50, width: 0.5 });
new Body(physics, { color: "red", type: "static", x:51, y: 0, height: 50, width: 0.5});
new Body(physics, { color: "red", type: "static", x: 0, y: 0, height: 0.5, width: 120 });
new Body(physics, { color: "red", type: "static", x: 0, y:25, height: 0.5, width: 120 });
new Body(physics, { image: img, x: 5, y: 8 });
new Body(physics, { image: img, x: 13, y: 8 });
new Body(physics, { color: "blue", x: 8, y: 3 });
new Body(physics, { color: "gray", shape: "circle", radius: 4, x: 5, y: 20 });
new Body(physics, { color: "pink", shape: "polygon",
points: [ { x: 0, y: 0 }, { x: 0, y: 4 },{ x: -10, y: 0 } ],
x: 20, y: 5 });
physics.dragNDrop();
requestAnimationFrame(gameLoop);
});
img.src = "images/bricks.jpg";
}
window.addEventListener("load",init);
}());
// Lastly, add in the `requestAnimationFrame` shim, if necessary. Does nothing
// if `requestAnimationFrame` is already on the `window` object.
(function() {
var lastTime = 0;
var vendors = ['ms', 'moz', 'webkit', 'o'];
for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
window.cancelAnimationFrame =
window[vendors[x]+'CancelAnimationFrame'] || window[vendors[x]+'CancelRequestAnimationFrame'];
}
if (!window.requestAnimationFrame) {
window.requestAnimationFrame = function(callback, element) {
var currTime = new Date().getTime();
var timeToCall = Math.max(0, 16 - (currTime - lastTime));
var id = window.setTimeout(function() { callback(currTime + timeToCall); },
timeToCall);
lastTime = currTime + timeToCall;
return id;
};
}
if (!window.cancelAnimationFrame) {
window.cancelAnimationFrame = function(id) {
clearTimeout(id);
};
}
}());
</script>
</body>
</html>
鼠关节
帆布
{
背景色：黑色；
}
布罗斯韦尔没有
支持画布标签
（功能（）{
var b2Vec2=Box2D.Common.Math.b2Vec2；
var b2BodyDef=Box2D.Dynamics.b2BodyDef；
var b2Body=Box2D.Dynamics.b2Body；
var b2FixtureDef=Box2D.Dynamics.b2FixtureDef；
var b2Fixture=Box2D.Dynamics.b2Fixture；
var b2World=Box2D.Dynamics.b2World；
var b2MassData=Box2D.Collision.Shapes.b2MassData；
var b2PolygonShape=Box2D.Collision.Shapes.b2PolygonShape；
var b2CircleShape=Box2D.Collision.Shapes.b2CircleShape；
var b2DebugDraw=Box2D.Dynamics.b2DebugDraw；
var物理=窗口。物理=功能（元素、比例）{
var重力=新的b2Vec2（0,9.8）；
this.world=新世界（重力，真）；
this.element=元素；
this.context=element.getContext（“2d”）；
this.scale=scale | | 20；
此参数为0；
该金额=1/60；
};
Physics.prototype.debug=函数（）{
this.debugDraw=new b2DebugDraw（）；
this.debugDraw.SetSprite（this.context）；
this.debugDraw.SetDrawScale（this.scale）；
this.debugDraw.SetFillAlpha（0.3）；
this.debugDraw.SetLineThickness（1.0）；
this.debugDraw.SetFlags（b2DebugDraw.e|u shapeBit | b2DebugDraw.e_jointBit）；
this.world.SetDebugDraw（this.debugDraw）；
};
Physics.prototype.step=函数（dt）{
这.dt剩余+=dt；
while（this.dtRemaining>this.stepAmount）{
this.dtRemaining-=this.stepAmount；
this.world.Step（this.stepAmount，
10，//速度迭代
10） ；//位置迭代
}
if（this.debugDraw）{
this.world.DrawDebugData（）；
}否则{
var obj=this.world.GetBodyList（）；
this.context.clearRect（0,0，this.element.width，this.element.height）；
this.context.save（）；
this.context.scale（this.scale，this.scale）；
while（obj）{
var body=obj.GetUserData（）；
如果（正文）
{
body.draw（这个上下文）；
}
obj=obj.GetNext（）；
}
this.context.restore（）；
}
};
Physics.prototype.click=函数（回调）{
var self=这个；
函数handleClick（e）{
e、 预防默认值（）；
变量点={
x:（e.offsetX | | e.layerX）/self.scale，
y:（e.offsetY | | e.layerY）/self.scale
};
self.world.QueryPoint（函数（fixture）{
回调（fixture.GetBody（），
固定装置
点）；
}，点）；
}
this.element.addEventListener（“mousedown”，handleClick）；
this.element.addEventListener（“touchstart”，handleClick）；
};
Physics.prototype.dragNDrop=函数（）{
var self=这个；
var obj=null；
var-joint=null；
函数计算RLD位置（e）{
返回点={
x:（e.offsetX | | e.layerX）/self.scale，
y:（e.offsetY | | e.layerY）/self.scale
};
}
this.element.addEventListener（“mousedown”，函数（e）{
e、 预防默认值（）；
var点=计算的RLD位置（e）；
self.world.QueryPoint（函数（fixture）{
obj=fixture.GetBody（）.GetUserData（）；
}，点）；
});
this.element.addEventListener（“mousemove”，函数（e）{
如果（！obj）{return；}
var点=计算的RLD位置（e）；
如果（！接头）{
var jointDefinition=new-Box2D.Dynamics.Joints.b2MouseJointDef（）；
jointDefinition.bodyA=self.world.GetGroundBody（）；
jointDefinition.bodyB=对象实体；
jointDefinition.target.Set（点x，点y）；
jointDefinition.maxForce=100000；
jointDefinition.timeStep=self.stepAmount；
joint=self.world.CreateJoint（jointDefinition）；
}
联合设定目标（新b2Vec2（点x，点y））；
});
this.element.addEventListener（“mouseup”，函数（e）{
obj=null；
如果（联合）{
自我。世界。联合（联合）；
joint=null；
}
});
};
Physics.prototype.collision=函数（）{
this.listener=new-Box2D.Dynamics.b2ContactListener（）；
this.listener.PostSolve=函数（触点、脉冲）{
var bodyA=contact.GetFixtureA（）.GetBody（）.GetUserData（），
bodyB=contact.GetFixtureB（）.GetBody（）.GetUserData（）；
if（bodyA.contact）{bodyA.contact（contact，pulse，true）}
if（bodyB.contact）{bodyB.contact（contact，pulse，false）}
};
this.world.SetContactListener（this.listener）；
};
变量Body=window.Body=function（物理，细节）{
this.details=details=details | |{}；
//创建定义
this.definition=新的b2BodyDef（）；
//建立定义
for（此.definitionDefault中的变量k）{
this.definition[k]=details[k]| this.definitionDefaults[k]；
}
this.definition.position=新的b2Vec2（details.x | | 0，details.y | 0）；
this.definition.linearVelocity=新的b2Vec2（details.vx | 0，details.vy | 0）；
this.definition.userData=this；
this.definition.type=details.type==“static”？b2Body.b2\u staticBody:
b2Body.b2_dynamicBody；
//创造身体
this.body=physics.world.CreateBody（this.definition）；
//创建设备
this.fixtureDef=新的b2FixtureDef（）；
for（此.fixtureDefaults中的变量l）{
this.fixtureDef[l]=详细信息[l]| | this.fixtureDefaults[l]；
}
details.shape=details.shape | | this.defaults.shape；
开关（细节.形状）{
案例“圆圈”：
details.radius=details.radius | | this.defaults.radius；
<!DOCTYPE HTML>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Mouse Joint</title>
<script src='C:/Users/home-1/Desktop/Box2dWeb-2.1.a.3.js'></script>
<script src='C:/Users/home-1/Desktop/example5.js'></script>
<style>
canvas
{
background-color:black;
}
</style>
</head>
<body>
<canvas id='b2dCanvas' width='1024' height='500'>Broswer does not
support Canvas Tag</canvas>
<script>
(function() {
var b2Vec2 = Box2D.Common.Math.b2Vec2;
var b2BodyDef = Box2D.Dynamics.b2BodyDef;
var b2Body = Box2D.Dynamics.b2Body;
var b2FixtureDef = Box2D.Dynamics.b2FixtureDef;
var b2Fixture = Box2D.Dynamics.b2Fixture;
var b2World = Box2D.Dynamics.b2World;
var b2MassData = Box2D.Collision.Shapes.b2MassData;
var b2PolygonShape = Box2D.Collision.Shapes.b2PolygonShape;
var b2CircleShape = Box2D.Collision.Shapes.b2CircleShape;
var b2DebugDraw = Box2D.Dynamics.b2DebugDraw;
var Physics = window.Physics = function(element,scale) {
var gravity = new b2Vec2(0,9.8);
this.world = new b2World(gravity, true);
this.element = element;
this.context = element.getContext("2d");
this.scale = scale || 20;
this.dtRemaining = 0;
this.stepAmount = 1/60;
};
Physics.prototype.debug = function() {
this.debugDraw = new b2DebugDraw();
this.debugDraw.SetSprite(this.context);
this.debugDraw.SetDrawScale(this.scale);
this.debugDraw.SetFillAlpha(0.3);
this.debugDraw.SetLineThickness(1.0);
this.debugDraw.SetFlags(b2DebugDraw.e_shapeBit | b2DebugDraw.e_jointBit);
this.world.SetDebugDraw(this.debugDraw);
};
Physics.prototype.step = function(dt) {
this.dtRemaining += dt;
while(this.dtRemaining > this.stepAmount) {
this.dtRemaining -= this.stepAmount;
this.world.Step(this.stepAmount,
10, // velocity iterations
10);// position iterations
}
if(this.debugDraw) {
this.world.DrawDebugData();
} else {
var obj = this.world.GetBodyList();
this.context.clearRect(0,0,this.element.width,this.element.height);
this.context.save();
this.context.scale(this.scale,this.scale);
while(obj) {
var body = obj.GetUserData();
if(body)
{
body.draw(this.context);
}
obj = obj.GetNext();
}
this.context.restore();
}
};
Physics.prototype.click = function(callback) {
var self = this;
function handleClick(e) {
e.preventDefault();
var point = {
x: (e.offsetX || e.layerX) / self.scale,
y: (e.offsetY || e.layerY) / self.scale
};
self.world.QueryPoint(function(fixture) {
callback(fixture.GetBody(),
fixture,
point);
},point);
}
this.element.addEventListener("mousedown",handleClick);
this.element.addEventListener("touchstart",handleClick);
};
Physics.prototype.dragNDrop = function() {
var self = this;
var obj = null;
var joint = null;
function calculateWorldPosition(e) {
return point = {
x: (e.offsetX || e.layerX) / self.scale,
y: (e.offsetY || e.layerY) / self.scale
};
}
this.element.addEventListener("mousedown",function(e) {
e.preventDefault();
var point = calculateWorldPosition(e);
self.world.QueryPoint(function(fixture) {
obj = fixture.GetBody().GetUserData();
},point);
});
this.element.addEventListener("mousemove",function(e) {
if(!obj) { return; }
var point = calculateWorldPosition(e);
if(!joint) {
var jointDefinition = new Box2D.Dynamics.Joints.b2MouseJointDef();
jointDefinition.bodyA = self.world.GetGroundBody();
jointDefinition.bodyB = obj.body;
jointDefinition.target.Set(point.x,point.y);
jointDefinition.maxForce = 100000;
jointDefinition.timeStep = self.stepAmount;
joint = self.world.CreateJoint(jointDefinition);
}
joint.SetTarget(new b2Vec2(point.x,point.y));
});
this.element.addEventListener("mouseup",function(e) {
obj = null;
if(joint) {
self.world.DestroyJoint(joint);
joint = null;
}
});
};
Physics.prototype.collision = function() {
this.listener = new Box2D.Dynamics.b2ContactListener();
this.listener.PostSolve = function(contact,impulse) {
var bodyA = contact.GetFixtureA().GetBody().GetUserData(),
bodyB = contact.GetFixtureB().GetBody().GetUserData();
if(bodyA.contact) { bodyA.contact(contact,impulse,true) }
if(bodyB.contact) { bodyB.contact(contact,impulse,false) }
};
this.world.SetContactListener(this.listener);
};
var Body = window.Body = function(physics,details) {
this.details = details = details || {};
// Create the definition
this.definition = new b2BodyDef();
// Set up the definition
for(var k in this.definitionDefaults) {
this.definition[k] = details[k] || this.definitionDefaults[k];
}
this.definition.position = new b2Vec2(details.x || 0, details.y || 0);
this.definition.linearVelocity = new b2Vec2(details.vx || 0, details.vy || 0);
this.definition.userData = this;
this.definition.type = details.type == "static" ? b2Body.b2_staticBody :
b2Body.b2_dynamicBody;
// Create the Body
this.body = physics.world.CreateBody(this.definition);
// Create the fixture
this.fixtureDef = new b2FixtureDef();
for(var l in this.fixtureDefaults) {
this.fixtureDef[l] = details[l] || this.fixtureDefaults[l];
}
details.shape = details.shape || this.defaults.shape;
switch(details.shape) {
case "circle":
details.radius = details.radius || this.defaults.radius;
this.fixtureDef.shape = new b2CircleShape(details.radius);
break;
case "polygon":
this.fixtureDef.shape = new b2PolygonShape();
this.fixtureDef.shape.SetAsArray(details.points,details.points.length);
break;
case "block":
default:
details.width = details.width || this.defaults.width;
details.height = details.height || this.defaults.height;
this.fixtureDef.shape = new b2PolygonShape();
this.fixtureDef.shape.SetAsBox(details.width/2,
details.height/2);
break;
}
this.body.CreateFixture(this.fixtureDef);
};
Body.prototype.defaults = {
shape: "block",
width: 4,
height: 4,
radius: 1
};
Body.prototype.fixtureDefaults = {
density: 2,
friction: 1,
restitution: 0.2
};
Body.prototype.definitionDefaults = {
active: true,
allowSleep: true,
angle: 0,
angularVelocity: 0,
awake: true,
bullet: false,
fixedRotation: false
};
Body.prototype.draw = function(context) {
var pos = this.body.GetPosition(),
angle = this.body.GetAngle();
context.save();
context.translate(pos.x,pos.y);
context.rotate(angle);
if(this.details.color) {
context.fillStyle = this.details.color;
switch(this.details.shape) {
case "circle":
context.beginPath();
context.arc(0,0,this.details.radius,0,Math.PI*2);
context.fill();
break;
case "polygon":
var points = this.details.points;
context.beginPath();
context.moveTo(points[0].x,points[0].y);
for(var i=1;i<points.length;i++) {
context.lineTo(points[i].x,points[i].y);
}
context.fill();
break;
case "block":
context.fillRect(-this.details.width/2,
-this.details.height/2,
this.details.width,
this.details.height);
default:
break;
}
}
if(this.details.image) {
context.drawImage(this.details.image,
-this.details.width/2,
-this.details.height/2,
this.details.width,
this.details.height);
}
context.restore();
}
var physics,
lastFrame = new Date().getTime();
window.gameLoop = function() {
var tm = new Date().getTime();
requestAnimationFrame(gameLoop);
var dt = (tm - lastFrame) / 1000;
if(dt > 1/15) { dt = 1/15; }
physics.step(dt);
lastFrame = tm;
};
function init() {
var img = new Image();
// Wait for the image to load
img.addEventListener("load", function() {
physics = window.physics = new Physics(document.getElementById("b2dCanvas"));
physics.collision();
// Create some walls
new Body(physics, { color: "red", type: "static", x: 0, y: 0, height: 50, width: 0.5 });
new Body(physics, { color: "red", type: "static", x:51, y: 0, height: 50, width: 0.5});
new Body(physics, { color: "red", type: "static", x: 0, y: 0, height: 0.5, width: 120 });
new Body(physics, { color: "red", type: "static", x: 0, y:25, height: 0.5, width: 120 });
new Body(physics, { image: img, x: 5, y: 8 });
new Body(physics, { image: img, x: 13, y: 8 });
new Body(physics, { color: "blue", x: 8, y: 3 });
new Body(physics, { color: "gray", shape: "circle", radius: 4, x: 5, y: 20 });
new Body(physics, { color: "pink", shape: "polygon",
points: [ { x: 0, y: 0 }, { x: 0, y: 4 },{ x: -10, y: 0 } ],
x: 20, y: 5 });
physics.dragNDrop();
requestAnimationFrame(gameLoop);
});
img.src = "images/bricks.jpg";
}
window.addEventListener("load",init);
}());
// Lastly, add in the `requestAnimationFrame` shim, if necessary. Does nothing
// if `requestAnimationFrame` is already on the `window` object.
(function() {
var lastTime = 0;
var vendors = ['ms', 'moz', 'webkit', 'o'];
for(var x = 0; x < vendors.length && !window.requestAnimationFrame; ++x) {
window.requestAnimationFrame = window[vendors[x]+'RequestAnimationFrame'];
window.cancelAnimationFrame =
window[vendors[x]+'CancelAnimationFrame'] || window[vendors[x]+'CancelRequestAnimationFrame'];
}
if (!window.requestAnimationFrame) {
window.requestAnimationFrame = function(callback, element) {
var currTime = new Date().getTime();
var timeToCall = Math.max(0, 16 - (currTime - lastTime));
var id = window.setTimeout(function() { callback(currTime + timeToCall); },
timeToCall);
lastTime = currTime + timeToCall;
return id;
};
}
if (!window.cancelAnimationFrame) {
window.cancelAnimationFrame = function(id) {
clearTimeout(id);
};
}
}());
</script>
</body>
</html>
<script src='Box2dWeb-2.1.a.3.js'></script>
<script src='example5.js'></script>
<script src="Box2dWeb-2.1.a.3.js"></script>
<script src="example5.js"></script>