Created
August 1, 2014 01:09
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// Generated by CoffeeScript 1.6.3 | |
(function() { | |
var Box2D, b1, b2, beginContact, contactCb, contactCount, endContact, f1, f2, i, world, _createBody, _createCollider, _i, _j; | |
Box2D = require('./box2d'); | |
_createCollider = function(body, id, radius) { | |
var fixtureDef, shape; | |
shape = new Box2D.b2CircleShape(); | |
shape.set_m_radius(radius); | |
fixtureDef = new Box2D.b2FixtureDef(); | |
fixtureDef.set_density(1); | |
fixtureDef.set_shape(shape); | |
fixtureDef.set_userData(id); | |
return body.CreateFixture(fixtureDef); | |
}; | |
_createBody = function(x, y) { | |
var bodyDef, pos; | |
pos = new Box2D.b2Vec2(x, y); | |
bodyDef = new Box2D.b2BodyDef(); | |
bodyDef.set_type(Box2D.b2_dynamicBody); | |
bodyDef.set_position(pos); | |
return world.CreateBody(bodyDef); | |
}; | |
contactCount = 0; | |
contactCb = new Box2D.b2ContactListener(); | |
Box2D.customizeVTable(contactCb, [ | |
{ | |
original: Box2D.b2ContactListener.prototype.BeginContact, | |
replacement: beginContact = function(thsPtr, contactPtr) { | |
var contact, fixtureA, fixtureB; | |
contact = Box2D.wrapPointer(contactPtr, Box2D.b2Contact); | |
fixtureA = contact.GetFixtureA(); | |
fixtureB = contact.GetFixtureB(); | |
console.log('BEGIN', fixtureA.GetUserData(), fixtureB.GetUserData()); | |
return contactCount++; | |
} | |
} | |
]); | |
Box2D.customizeVTable(contactCb, [ | |
{ | |
original: Box2D.b2ContactListener.prototype.EndContact, | |
replacement: endContact = function(thsPtr, contactPtr) { | |
var contact, fixtureA, fixtureB; | |
contact = Box2D.wrapPointer(contactPtr, Box2D.b2Contact); | |
fixtureA = contact.GetFixtureA(); | |
fixtureB = contact.GetFixtureB(); | |
return console.log('END', fixtureA.GetUserData(), fixtureB.GetUserData()); | |
} | |
} | |
]); | |
world = new Box2D.b2World(new Box2D.b2Vec2(0, 0)); | |
world.SetContactListener(contactCb); | |
b1 = _createBody(1, 1); | |
f1 = _createCollider(b1, 1, 1); | |
b2 = _createBody(1, 5); | |
f2 = _createCollider(b2, 2, 1); | |
b2.SetLinearVelocity(new Box2D.b2Vec2(0, -0.5)); | |
while (contactCount === 0) { | |
world.Step(0.1, 2, 2); | |
} | |
for (i = _i = 0; _i < 50; i = ++_i) { | |
world.Step(0.1, 2, 2); | |
} | |
b2.SetLinearVelocity(new Box2D.b2Vec2(0, 0.5)); | |
for (i = _j = 0; _j < 100; i = ++_j) { | |
world.Step(0.1, 2, 2); | |
} | |
return; | |
}).call(this); |
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