//Cormen: 2a-2b
bool internalKeyDelete(TreeNodePtr node, int pos, int shift, FallDownBehave fb){
int childNodePos = pos + shift;
TreeNodePtr child = node->nodes[childNodePos];
if(childNodePos >= node->childCount || child->keyCount < t) return false;
free(node->items[pos]);
node->items[pos] = fallDown(child, fb);
LSQ_IntegerIndexT key = node->items[pos]->key;
assert(deleteKey(child, key, getItemOrNext(child, key), false));
node->subtreeKeyCount[childNodePos]--;
return true;
}
void DynamicGoo::contactGround() {
//Away to trapass body
if (isDragging()) {
//Change flag and reset normal status
dragging=false;
fallDown();
//Emit a signal for the level class
emit stopDragging();
return;
}
else {
if (!isSleeping() && qAbs(body->GetAngularVelocity())<body->GetLinearVelocity().Length() && prevTarget==NULL&& (target==NULL ||(target!=NULL && (target->getVPosition()-body->GetPosition()).Length()<radius/10 ))) {
ALbyte name[100]="resources/sounds/boing2.wav";
QPair<unsigned int,unsigned int> source =sSystem->createSource(name);
sSystem->setPitch(source.first,24.0/float(radius)*60.0/body->GetLinearVelocity().Length());
sSystem->setVolume(source.first,2.0*body->GetLinearVelocity().Length()/80.0*radius/24.0);
sSystem->setPosition(source.first,getPPosition());
sSystem->playSource(source.first);
sources.push_back(source);
}
onGround=true;
groundPoint=this->getPPosition();
//if has joint return;
if (hasJoint()) {
return;
}
if (sleeping) {
body->SetGravityScale(1.0);
return;
}
if(!hasJoint() && target==NULL) {
emit this->nextTargetPlease(NULL);
}
}
}
void DynamicGoo::contactGround(QPoint p){
//Away to trapass body
if (isDragging()) {
//Change flag and reset normal status
dragging=false;
fallDown();
//Emit a signal for the level class
emit stopDragging();
return;
}
else {
onGround=true;
groundPoint=this->getPPosition();
//if has joint and is not sticked on ground
if (hasJoint()){
if (!sticked && stickable){
onGround=true;
groundPoint=this->getPPosition();
emit this->createSticky(p);
sticked=true; //flag to true
}
return;
}
if (sleeping) {
body->SetGravityScale(1.0);
return;
}
if(!hasJoint() && target==NULL){
emit this->nextTargetPlease(NULL);
}
}
}
void DynamicGoo::contactGround(){
//Away to trapass body
if (isDragging()) {
//Change flag and reset normal status
dragging=false;
fallDown();
//Emit a signal for the level class
emit stopDragging();
return;
}
else {
if (!isSleeping() && qAbs(body->GetAngularVelocity())<body->GetLinearVelocity().Length() && prevTarget==NULL&& (target==NULL ||(target!=NULL && (target->getVPosition()-body->GetPosition()).Length()<radius/10 )))
{
Goo::sSystem->SetPitch(boingSound, 24.0/float(radius)*60.0/body->GetLinearVelocity().Length());
Goo::sSystem->SetVolume(boingSound, 2.0*body->GetLinearVelocity().Length()/80.0*radius/24.0);
Goo::sSystem->SetPosition(boingSound, getPPosition());
Goo::sSystem->Play(boingSound);
}
onGround=true;
groundPoint=this->getPPosition();
//if has joint return;
if (hasJoint()){
return;
}
if (sleeping) {
body->SetGravityScale(1.0);
return;
}
if(!hasJoint() && target==NULL){
emit this->nextTargetPlease(NULL);
}
}
}
void fallDownDelete(TreePtr tree, FallDownBehave fb){
TreeItemPtr item = fallDown(tree->root, fb);
if(NULL == item) return;
LSQ_DeleteElement(tree, item->key);
}
void DynamicGoo::moveToTarget(){
//Stop to follow if the goo is dragged for the use
if (isDragging()) {
stopFollow();
return;
}
if (onGround && groundPoint!=getPPosition()) {
onGround=false;
}
if (isFalling()) return;
if (hasJoint()){
return;
}
if (!hasJoint() && !isDragging() && isOnGround() && target==NULL ){
emit this->nextTargetPlease(NULL);
}
if (following && !falling){
if (prevTarget){
if (!target->isLinked(prevTarget)){
drop();
return;
}
QPoint meTarget=target->getPPosition()-getPPosition();
if (toVec(meTarget).Length()>15+radius/10) {
stopFollow();
fallDown();
return;
}
//Compute mx and my for the position
float mx,my;
mx=(target->getVPosition().x-prevTarget->getVPosition().x);
my=(target->getVPosition().y-prevTarget->getVPosition().y);
float d=qSqrt(mx*mx+my*my);
float md=qSqrt(qPow((target->getVPosition().x-getVPosition().x),2)+qPow((target->getVPosition().y-getVPosition().y),2));
mx/=d;
my/=d;
float tx,ty;
//Compute tehorical x and y
tx=(getVPosition().x-prevTarget->getVPosition().x)/mx;
ty=(getVPosition().y-prevTarget->getVPosition().y)/my;
float yt=my*tx+prevTarget->getVPosition().y;
float xt=mx*ty+prevTarget->getVPosition().x;
//if my y position is different at least of 12 falldown and return
if ((qAbs(getVPosition().y-yt)>getRadius() && qAbs(getVPosition().x-xt)>getRadius()) || (md>d+radius)){
stopFollow();
fallDown();
return;
}
}
//this is a work around for the very ugly bug of the "FLYING GOOS"
//description of the bug if no prevTarget is setted but target is and the goo tower start to fall down the goo start to fly
//for reach his target!
//check if prevtarget is not setted and target is
if (!prevTarget && target && !target->isOnGround()){
//compute distance between target and me
float d=(target->getVPosition()-getVPosition()).Length();
//if that distance is more than 25 falldown and return
//PS: remember that 30 is a single point contact between two goos
if (d>=radius*0.2) {
stopFollow();
fallDown();
return;
}
else if (d<radius*0.2){
emit this->nextTargetPlease(target);
body->SetLinearVelocity(b2Vec2(0,0));
return;
}
}
b2Vec2 dP;
if (target!=NULL /*&& target->getBody()!=NULL*/)
dP=target->getVPosition()-this->getVPosition();
else {
stopFollow();
fallDown();
return;
}
if (dP.Length()<=(radius-radius/4.0)/10.0){
emit this->nextTargetPlease(target);
body->SetLinearVelocity(b2Vec2(0,0));
return;
}
if (!prevTarget){
b2Vec2 dvec=(target->getVPosition()-getVPosition());
float d=qSqrt(dvec.x*dvec.x+dvec.y*dvec.y);
if (onGround && target->isOnGround() && d<distanceToJoint){
double omega =(dP.x>0 ? speed*body->GetMass() : -speed*body->GetMass());
body->SetAngularVelocity(omega);
body->ApplyForceToCenter(body->GetMass()*body->GetWorld()->GetGravity());
}
else if (!onGround && d<radius*2) {
emit this->nextTargetPlease(target);
body->SetLinearVelocity(b2Vec2(0,0));
return;
dP.x=(dP.x>0 ? speed*2 : -speed*2);
dP.y=body->GetMass()*body->GetWorld()->GetGravity().y;
body->ApplyForceToCenter(dP);
}
else{
body->SetGravityScale(1);
stopFollow();
}
}
else {
dP.x=dP.x*speed/dP.Length();
dP.y=dP.y*speed/dP.Length() ;
body->SetLinearVelocity(dP);
}
}
}