jeena/chuck.js
1
0
Fork 0
mirror of https://github.com/logsol/chuck.js.git synced 2026-05-11 10:37:34 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

added skateboard :D

Browse source
This commit is contained in:
logsol 2014-01-12 00:36:18 +01:00
parent fa9a0d5d22
commit 81611050d2
6 changed files with 144 additions and 321 deletions
Download patch file Download diff file Expand all files Collapse all files

89
app/Game/Core/GameObjects/Items/Skateboard.js Normal file
View file

@ -0,0 +1,89 @@
define([
"Game/" + GLOBALS.context + "/GameObjects/Item",
"Lib/Vendor/Box2D",
"Game/Config/Settings"
],
function (Parent, Box2D, Settings) {
function Skateboard(physicsEngine, uid, options) {
this.physicsEngine = physicsEngine;
Parent.call(this, physicsEngine, uid, options);
this.addWheel(
options.x + 8,
options.y + 1.5
);
this.addWheel(
options.x - 8,
options.y + 1.5
);
}
Skateboard.prototype = Object.create(Parent.prototype);
Skateboard.prototype.createFixture = function () {
var itemShape = new Box2D.Collision.Shapes.b2PolygonShape();
var w = this.options.width / Settings.RATIO;
var h = 1.5 / Settings.RATIO;
itemShape.SetAsOrientedBox(w / 2, h / 2, new Box2D.Common.Math.b2Vec2(0, -(1.5 / Settings.RATIO)));
var fixtureDef = new Box2D.Dynamics.b2FixtureDef();
fixtureDef.shape = itemShape;
var offset = 4,
factor = 80;
var density = ((this.options.weight + offset) / this.options.width / this.options.height) * factor;
fixtureDef.density = density;
fixtureDef.friction = Settings.ITEM_FRICTION;
fixtureDef.restitution = Settings.ITEM_RESTITUTION;
fixtureDef.isSensor = false;
this.body.CreateFixture(fixtureDef);
}
Skateboard.prototype.addWheel = function(x, y) {
var bodyDef = new Box2D.Dynamics.b2BodyDef();
bodyDef.type = Box2D.Dynamics.b2Body.b2_dynamicBody;
bodyDef.position.x = x / Settings.RATIO;
bodyDef.position.y = y / Settings.RATIO;
bodyDef.angle = 0;
var wheelShape = new Box2D.Collision.Shapes.b2CircleShape();
wheelShape.SetRadius(1.5 / Settings.RATIO);
wheelShape.SetLocalPosition(new Box2D.Common.Math.b2Vec2(0, 0));
var fixtureDef = new Box2D.Dynamics.b2FixtureDef();
var offset = 4,
factor = 80;
var density = ((this.options.weight + offset) / this.options.width / this.options.height) * factor;
fixtureDef.density = density;
fixtureDef.shape = wheelShape;
fixtureDef.isSensor = false;
var wheelBody = this.physicsEngine.getWorld().CreateBody(bodyDef);
wheelBody.CreateFixture(fixtureDef);
var revoluteJointDef = new Box2D.Dynamics.Joints.b2RevoluteJointDef();
revoluteJointDef.enableMotor = false;
revoluteJointDef.Initialize(this.body, wheelBody, wheelBody.GetWorldCenter());
this.physicsEngine.getWorld().CreateJoint(revoluteJointDef);
// FIXME this means, that we will have bodies in the world, which must not be
// updated (wheels) because they are always connected to a body which will be updated.
};
Skateboard.prototype.flip = function(direction) {
this.flipDirection = direction;
// FIXME: implement body flip if necessary
};
return Skateboard;
});