void ClockCircle :: createJoint ( float x, float y, float length )
{
if( hasJoint() )
destroyJoint();
b2BodyDef bd;
bd.position.Set( ( x * screenWidth ) / OFX_BOX2D_SCALE, ( y * screenHeight ) / OFX_BOX2D_SCALE );
point = world->CreateBody( &bd );
b2DistanceJointDef jd;
b2Vec2 p1, p2, d;
jd.frequencyHz = 1.0;
jd.dampingRatio = 0.2;
jd.body1 = body;
jd.body2 = point;
jd.localAnchor1.Set( 0, 0 );
jd.localAnchor2.Set( 0, 0 );
jd.collideConnected = false;
p1 = jd.body1->GetWorldPoint( jd.localAnchor1 );
p2 = jd.body2->GetWorldPoint( jd.localAnchor2 );
d = p2 - p1;
jd.length = length / OFX_BOX2D_SCALE;
joint = (b2DistanceJoint*)world->CreateJoint( &jd );
body->WakeUp();
}
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::update(){
if (isSelected() && !isFalling()) {
body->SetLinearVelocity(b2Vec2(0,0));
return;
}
if (!isSleeping()){
if (hasJoint()){
body->SetAngularVelocity(0.0);
}
moveToTarget();
}
else
emit this->checkForNeighbors(getPPosition());
}
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 ClockCircle :: destroyJoint ()
{
if( hasJoint() )
{
world->DestroyJoint( joint );
joint = NULL;
world->DestroyBody( point );
point = NULL;
}
bCenterJoint = false;
bOuterJoint = false;
bLineupJoint = false;
}
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 DynamicGoo::paintDebug(QPainter &p){
//set the pen green if is jointed or white if is free and not sleeping
p.setPen( Qt::white);
//if has joint draw the number of joint of it inside him.
if (hasJoint()){
target=NULL;
prevTarget=NULL;
p.drawText(QPoint(getPPosition().x()-5,getPPosition().y()+5),QString::number(this->nJoints()));
}
//if not and is free and is mooving to reach a target draw the direction
else if (target!=NULL){
if (prevTarget==NULL){
p.setBrush(Qt::darkYellow);
p.drawEllipse(getPPosition(),radius,radius);
}
else {
p.setBrush(Qt::darkGreen);
p.drawEllipse(getPPosition(),radius,radius);
}
}
if (body->GetLinearVelocity().Length()){
//save the position
p.save();
//translate the painter at the center of the goo
p.translate(getPPosition());
//rotate the painter of the angle between the goo and his target
p.rotate(atan2(body->GetLinearVelocity().y,body->GetLinearVelocity().x)*180.0/3.141628);
//draw a line in this direction of 40 px
p.drawLine(0,0,body->GetLinearVelocity().Length(),0);
//translate the painter at the end of the line
p.translate(body->GetLinearVelocity().Length(),0);
//rotatate of 45° degree
p.rotate(45);
//draw a line of 5 (this is one side of the arrow)
p.drawLine(0,0,-5,0);
//rotate to -45° degree
p.rotate(270);
//draw the other side of the arrow
p.drawLine(0,0,-5,0);
//restore the previous position
p.restore();
}
}
void BalloonGoo::drag(){
//If dragging stop to fallow and to fly!
onGround=false;
stopFollow();
if (!dragging){
info.gScale=body->GetGravityScale();
info.speed=body->GetLinearVelocity();
info.aForce=body->GetAngularVelocity();
}
body->SetActive(false);
if (hasJoint()) {
for (int i=0;i<links.count();i++) {
destroyLink(links.at(i));
}
}
dragging=true;
}
bool BalloonGoo::destroyLink(Goo *goo){
if (isLinked(goo)){
//return at normality!
links.removeAt(links.indexOf(goo));
emit this->destroyJoint(this,goo);
goo->destroyLink(this);
active=false;
body->SetGravityScale(1);
rx=0;
ry=0;
radius=stdRadius;
b2MassData mass;
mass.center.SetZero();
mass.I=0.1;
mass.mass=0.5;
body->SetMassData(&mass);
if (!isDragging() && !hasJoint()) body->SetActive(false);
return true;
}
else return false;
}
void DynamicGoo::update() {
QList <int > toRemove;
for (int i=0; i<sources.length(); i++) {
if (!sSystem->sourceStatus(sources[i].first)) {
sSystem->deleteSource(sources[i]);
toRemove.push_back(i);
}
}
for (int i=0; i<toRemove.length(); i++)
sources.removeAt(toRemove[i]);
if (isSelected() && !isFalling()) {
body->SetLinearVelocity(b2Vec2(0,0));
return;
}
if (!isSleeping()) {
if (hasJoint()) {
body->SetAngularVelocity(0.0);
}
moveToTarget();
}
else
emit this->checkForNeighbors(getPPosition());
}
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);
}
}
}
void DynamicGoo::paint(QPainter &p){
//Check rutine
//Real paint stuff
//check if is dragged
if (isDragging()){
p.setBrush(Qt::transparent);
p.setPen(QPen(color,3));
p.drawEllipse(toPoint(body->GetPosition()), getRadius()+10,getRadius()+10);
//p.drawRect(boundingRect());
}
//check if is selected and draggable
else if (selected && isDragable()){
if (!hasJoint())
p.setPen(QPen(color,3,Qt::DashLine));
else
p.setPen(QPen(color,3,Qt::DotLine));
p.setBrush(Qt::transparent);
p.drawEllipse(toPoint(body->GetPosition()), getRadius()+10,getRadius()+10);
}
//paint goo
p.setPen(secondaryColor);
QColor center=secondaryColor;
center.setRgb((center.red()+50 > 255 ? 255 : center.red()+50),(center.green()+50 > 255 ? 255 : center.green()+50),(center.blue()+50 > 255 ? 255 : center.blue()+50));
if (sleeping){
p.setBrush(center);
p.drawEllipse(getPPosition(),getRadius(),getRadius());
}
else {
b2Vec2 speed=body->GetLinearVelocity();
float angle=qAtan2(speed.x,speed.y);
float module=(isFalling() ? speed.Length()/8 : (!hasJoint() ? speed.Length()/15 : 0));
p.save();
p.translate(getPPosition());
if (!isDragging()) p.rotate((hasJoint() ? 0 :-angle*180.0/3.141628));
else p.rotate(this->angle);
p.setBrush(secondaryColor);
p.drawEllipse(QPoint(0,0),qRound(getRadius()-module),qRound(getRadius()+module));
rx=3;//+=(rand()%5-2);
ry=-2;//+=(rand()%5-2);
counter++;
QRadialGradient rg(rx,ry,getRadius()+5);
rg.setColorAt(0,center);
rg.setColorAt(1,Qt::transparent);
p.setBrush(rg);
p.drawEllipse(QPoint(0,0),qRound(getRadius()-module),qRound(getRadius()+module));
if ((counter>=delay && !hasJoint()) || isDragging() || isFalling()){
if (!isDragging() && !isFalling()) {
bool nE=!(rand()%5);
if (eye) nE=rand()%3;
if (eye!=nE && nE){
eyeSizeL=qrand()%3+5;
eyeSizeR=eyeSizeL+qrand()%4-1;
}
eye=nE;
counter=0;
}
else if (!eye) {
eyeSizeL=qrand()%3+5;
eyeSizeR=eyeSizeL+qrand()%4-1;
eye=true;
this->angle=qrand()%360;
}
}
if (eye && !hasJoint()&& !onGround) {
p.setPen(secondaryColor);
QRadialGradient rG2(-9,13,eyeSizeL);
QRadialGradient rG3(9,13,eyeSizeR);
rG2.setColorAt(0,Qt::white);
rG2.setColorAt(1,Qt::lightGray);
p.setBrush(rG2);
p.drawEllipse(QPoint(-9,12),eyeSizeL,eyeSizeL);
rG3.setColorAt(0,Qt::white);
rG3.setColorAt(1,Qt::lightGray);
p.setBrush(rG3);
p.drawEllipse(QPoint(9,12),eyeSizeR,eyeSizeR);
p.setBrush(Qt::black);
p.setPen(Qt::transparent);
p.drawEllipse(QPoint(-9,14),2,2);
p.drawEllipse(QPoint(9,13),2,2);
}
p.restore();
}
}