jeena/chuck.js
1
0
Fork 0
mirror of https://github.com/logsol/chuck.js.git synced 2026-05-11 18:47:35 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

raw finish of joint test

Browse source
This commit is contained in:
logsol 2012-07-18 16:35:51 +02:00
parent ca9c780bd7
commit 2df41336f4
2 changed files with 29 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

38
joint/common.js
View file

@ -1,5 +1,7 @@
var bodiesNum = 3; var bodiesNum = 3;
var world; var world;
var body;
var item;
var b2Vec2 = Box2D.Common.Math.b2Vec2, var b2Vec2 = Box2D.Common.Math.b2Vec2,
@ -14,7 +16,8 @@ var b2Vec2 = Box2D.Common.Math.b2Vec2,
b2CircleShape = Box2D.Collision.Shapes.b2CircleShape, b2CircleShape = Box2D.Collision.Shapes.b2CircleShape,
b2DebugDraw = Box2D.Dynamics.b2DebugDraw, b2DebugDraw = Box2D.Dynamics.b2DebugDraw,
b2MouseJointDef = Box2D.Dynamics.Joints.b2MouseJointDef, b2MouseJointDef = Box2D.Dynamics.Joints.b2MouseJointDef,
b2ContactListener = Box2D.Dynamics.b2ContactListener; b2ContactListener = Box2D.Dynamics.b2ContactListener,
b2RevoluteJointDef = Box2D.Dynamics.Joints.b2RevoluteJointDef;
function setupWorld(gravity) { function setupWorld(gravity) {
world = new b2World(new b2Vec2(0, gravity), true); world = new b2World(new b2Vec2(0, gravity), true);
@ -48,35 +51,46 @@ function setupWorld(gravity) {
// create some objects // create some objects
var b1 = makeBox(2,3); dude = makeBody(.2, .6, 2, 12, true).GetBody();
var b2 = makeBox(3,3); item = makeBody(.3, .1, 1.7, 11, false).GetBody();
var jointDef = new b2RevoluteJointDef();
jointDef.Initialize(dude, item, dude.GetWorldCenter());
jointDef.lowerAngle = -0.5 * Math.PI; // -90 degrees
jointDef.upperAngle = 0.25 * Math.PI; // 45 degrees
jointDef.enableLimit = true;
world.CreateJoint(jointDef);
/*
jointDef.maxMotorTorque = 10.0;
jointDef.motorSpeed = 0.0;
jointDef.enableMotor = true;
*/
} }
function makeBox(x, y){ function makeBody(width, height, x, y, fixedRotation){
var fixDef = new b2FixtureDef; var fixDef = new b2FixtureDef;
fixDef.density = 1.0; fixDef.density = 1.0;
fixDef.friction = 0.99; fixDef.friction = 0.99;
fixDef.restitution = .51; fixDef.restitution = .51;
fixDef.shape = new b2PolygonShape; fixDef.shape = new b2PolygonShape;
fixDef.shape.SetAsBox(0.5, 0.5); fixDef.shape.SetAsBox(width, height);
var bodyDef = new b2BodyDef; var bodyDef = new b2BodyDef;
bodyDef.type = b2Body.b2_dynamicBody; bodyDef.type = b2Body.b2_dynamicBody;
bodyDef.position.x = x; bodyDef.position.x = x;
bodyDef.position.y = y; bodyDef.position.y = y;
bodyDef.fixedRotation = fixedRotation;
world.CreateBody(bodyDef).CreateFixture(fixDef); return world.CreateBody(bodyDef).CreateFixture(fixDef);
return bodyDef;
} }
function jump() { function jump(body) {
var body = findBody(1);
body.SetAwake(true); body.SetAwake(true);
body.ApplyImpulse(new b2Vec2(8, -15), body.GetPosition()); body.ApplyImpulse(new b2Vec2(1, -1), body.GetPosition());
body.SetAngularVelocity(1.5);
} }

3
joint/index.html
View file

@ -9,6 +9,7 @@
<body> <body>
<canvas id="canvas" width="600" height="400" style="background-color:#333333;"></canvas> <canvas id="canvas" width="600" height="400" style="background-color:#333333;"></canvas>
<button onclick="jump()">jump</button> <button onclick="jump(dude)">move dude</button>
<button onclick="jump(item)">move item</button>
</body> </body>
</html> </html>