function addBody(bodyDef, fixDef, bodyMesh) {
var geometry;
var body = physicsWorld.CreateBody(bodyDef);
body.CreateFixture(fixDef);
body.SetAwake(1);
body.SetActive(1);
if(!bodyMesh) {
if(fixDef.width && fixDef.height) {
geometry = new THREE.PlaneGeometry(fixDef.width, fixDef.height, 1, 1);
} else if(fixDef.radius) {
geometry = new THREE.SphereGeometry(fixDef.radius, 8, 4);
} else {
throw new Error('Cannot deduce desired shape.');
}
bodyMesh = new THREE.Mesh(geometry);
}
bodyMesh.body = body;
body.bodyMesh = bodyMesh;
scene.add(bodyMesh);
bodyMeshes.push(bodyMesh);
if(bodyMesh.updateRotation) {
bodyMeshesWithManualRotationUpdate.push(bodyMesh);
}
return body;
}
function despawnBody(body) {
physicsWorld.DestroyBody(body);
var mesh = body.bodyMesh;
var index = bodyMeshes.indexOf(mesh);
bodyMeshes.splice(index, 1);
index = bodyMeshesWithManualRotationUpdate.indexOf(mesh);
if(index !== -1) {
bodyMeshesWithManualRotationUpdate.splice(index, 1);
}
mesh.body = null;
body.mesh = null;
}
function update() {
var i;
for (i = 0; i < prePhysicsCallbacks.length; i++) {
prePhysicsCallbacks[i]();
}
pos = avatar.body.GetPosition();
var posX = pos.x;
var absPosX = Math.abs(posX);
var posXDirection = posX < 0 ? 1 : -1;
if(absPosX > jumpDistanceHalf) {
//avatar crossed a barrier, teleport everything
var bodyList = physicsWorld.GetBodyList();
var total = physicsWorld.GetBodyCount();
var jumpX = posXDirection * jumpDistance;
avatar.desiredLocation.x += jumpX;
scenery.teleport(jumpX * SCALE_INV);
for (i = total; i >= 0; i--) {
pos = bodyList.GetPosition();
if(bodyList !== floorBody && bodyList !== ceilingBody) {
var x = pos.x + jumpX;
pos.x = x;
bodyList.SetPosition(pos);
if(Math.abs(x) > despawnDistance) {
bodiesToDespawn.push(bodyList);
}
bodyList = bodyList.GetNext();
}
}
// });
// avatar.SetTransform(new Box2D.b2Vec2(100 * SCALE, 100 * SCALE), 0);
}
physicsWorld.Step(
1 / 60, //frame-rate
2, //velocity iterations
2 //position iterations
);
bodyMeshes.forEach(function(bodyMesh){
pos = bodyMesh.body.GetPosition();
bodyMesh.position.x = pos.x * SCALE_INV;
bodyMesh.position.y = pos.y * SCALE_INV;
bodyMesh.rotation.z = bodyMesh.body.GetAngle();
if(bodyMesh.postPhysicsUpdate) {
bodyMesh.postPhysicsUpdate();
}
});
bodyMeshesWithManualRotationUpdate.forEach(function(bodyMesh) {
bodyMesh.updateRotation();
});
bodiesToDespawn.forEach(function(body) {
despawnBody(body);
});
bodiesToDespawn.length = 0;
meshesToDespawn.forEach(function(mesh) {
despawnMesh(mesh);
});
meshesToDespawn.length = 0;
physicsWorld.ClearForces();
people.forEach(function(person){
person.updateWalk();
});
}
var FIST_IMPULSE_TOLERANCE = 0.002;
var MAX_ENEMIES = 10;
var bodyMeshes = [];
var bodyMeshesWithManualRotationUpdate = [];
var scene;
var avatar;
var people = [];
var floorBody;
var ceilingBody;
var tempVec2 = new Box2D.b2Vec2(0, 0);
var gravity = new Box2D.b2Vec2(0, 0);
var physicsWorld = new Box2D.b2World(gravity);
var b2Listener = Box2D.Dynamics.b2ContactListener;
//Add listeners for contact
var listener = new b2Listener();
var impulseVec = new Box2D.b2Vec2();
listener.BeginContact = function(contact) {
var bodyFist = contact.GetFixtureA().GetBody();
var bodyPerson = contact.GetFixtureB().GetBody();
var fist = bodyFist.GetUserData();
var person = bodyPerson.GetUserData();
if(!fist || !person) return;
if(person.isWeapon && fist.isPerson) {
var temp = fist;