void
startBlock(Block *block)
{
// start block off with no neighbors and all vacant
msg2vm(block, CMD_ADD_NCOUNT, block->localTime, 0);
int i;
for (i=0; i<NUM_PORTS; i++)
msg2vm(block, CMD_ADD_VACANT, block->localTime, i);
checkForNeighbors(block, NULL);
}
void BalloonGoo::update(){
if (isSleeping()) emit checkForNeighbors(getPPosition());
this->moveToTarget();
if (active){
//apply the force to fly
body->ApplyForceToCenter(force);
body->SetAngularVelocity(0.0);
body->SetTransform(body->GetPosition(),0.0);
}
}
// b: block to check
// other: if set, then we only tell b about other's face
void
checkForNeighbors(Block* b, Block* other)
{
int i;
for(i = 0; i < NUM_PORTS; ++i) {
// see if we have a neighbor at port i
Block* d = seeIfNeighborAt(b, i);
if ((d != 0)&&((other==NULL)||(other==d))) {
if (d->neighborhood[i] == NULL) {
// we have a neighbor. tell them
msg2vm(d, CMD_DEL_VACANT, b->localTime, i);
msg2vm(d, CMD_ADD_NBR, b->localTime, b->id, i);
if (other == NULL) checkForNeighbors(d, b);
msg2vm(d, CMD_ADD_NCOUNT, b->localTime, countNeighbors(d));
d->neighborhood[i] = b;
}
assert(d->neighborhood[i] == b);
}
}
}
