//--------------------------------------------------------------
void ofApp::mouseDragged(int x, int y, int button){
//sets the origin to the mouse position when clicked
xOrig = mouseX;
yOrig = mouseY;
float radius = 300;
float angle = ofGetElapsedTimeMillis()*3.5;
//sets the position of the particles to appear in a circle
x = xOrig + radius * cos(angle * 1.3);
y = yOrig + radius * -sin(angle * 2.4);
setRandomColor();
float speed = 3;
//make some particles!!!
for (int i = 0; i <100; i++){
particle myParticle;
float angle = ofGetElapsedTimef() * (i * 10);
float velX = speed * sin(i);
float velY = speed * -cos(i);
myParticle.setInitialCondition(x, y, velX, velY);
myParticle.damping = ofRandom(0.01, 0.05);
myParticle.setInitialColor(randR, randG, randB);
particles.push_back(myParticle);
}
}
/**
* CallBack creating markers based on received toaster_msgs and adding then to area_list
* There is two differents types of area markers so this function manages both circle and polygon types
* @param msg reference to receive toaster_msgs::AreaList
* @return void
*/
void chatterCallbackAreaList(const toaster_msgs::AreaList::ConstPtr& msg) {
area_list.markers.clear();
for (int i = 0; i < msg->areaList.size(); i++) {
if (msg->areaList[i].isCircle == true) //circle case
{
visualization_msgs::Marker m = defineCircle(msg->areaList[i].center,
msg->areaList[i].ray, msg->areaList[i].name);
m = setRandomColor(m);
visualization_msgs::Marker mn = defineName(m);
mn = setSize(mn, 0.0, 0.0, 0.4);
mn = setPosition(mn, mn.pose.position.x, mn.pose.position.y, 1);
area_list.markers.push_back(m);
area_list.markers.push_back(mn);
ROS_DEBUG("circle %d", m.id);
} else // polygon case
{
visualization_msgs::Marker m = definePolygon(msg->areaList[i].poly, 0.2, msg->areaList[i].name);
m = setRandomColor(m);
visualization_msgs::Marker mn = defineName(m);
mn = setSize(mn, 0.0, 0.0, 0.4);
int posx = 0;
int posy = 0;
for (int i = 0; i < m.points.size(); i++) {
posx = posx + m.points[i].x;
posy = posy + m.points[i].y;
}
mn = setPosition(mn, posx / m.points.size(), posy / m.points.size(), 1);
area_list.markers.push_back(m);
area_list.markers.push_back(mn);
ROS_DEBUG("poly %d", m.id);
}
}
}
CDotOverlord::CDotOverlord(void)
{
maxDots = MAX_DOTS;
CFlockingDot * tempDot;
for(int i = 0; i < maxDots; i++)
{
tempDot = new CFlockingDot();
setRandomColor((CFlockingDot&)*tempDot);
tempDot->position = getRandomPosition(2000,1400);
tempDot->velocity.x = getRandom(1,2);
tempDot->velocity.y = getRandom(1,2);
if((getRandom(0, 3) % 3) == 0)
{
tempDot->velocity.x*=-1;
}
if((getRandom(0, 3) % 3) == 0)
{
tempDot->velocity.y*=-1;
}
tempDot->maxSpeed = getRandom(3, 12);
tempDot->maxForce = getRandom(1, 3);
//tempDot->drawTrails = true;
dots.push_back(tempDot);
if((getRandom(0, 5) % 5) == 0)
{
int rdot = getRandom(0, dots.size()-1);
tempDot->setSeek(dots[rdot]);
tempDot->drawTrails = true;
setRandomColor((CFlockingDot&)*tempDot);
}
tempDot->wander();
tempDot->wander();
cout << tempDot->position.toString() << endl;
}
}
//--------------------------------------------------------------
void ofApp::setup(){
ofSetVerticalSync(true);
ofSetFrameRate(60);
ofBackground(50, 50, 50);
ofEnableAlphaBlending();
//set a random position and color for fireworks
//setRandomPos();
setRandomColor();
}
/* Like randomtriangle() but vertex/radius can't be more than 'delta' pixel
* away from initial random coordinates. */
void randomsmalltriangle(struct triangle *r, int width, int height, int delta) {
int x = random()%width;
int y = random()%height;
r->type = selectShapeType();
if (r->type == TYPE_TRIANGLE) {
r->u.t.x1 = x + randbetween(-delta,delta);
r->u.t.y1 = y + randbetween(-delta,delta);
r->u.t.x2 = x + randbetween(-delta,delta);
r->u.t.y2 = y + randbetween(-delta,delta);
r->u.t.x3 = x + randbetween(-delta,delta);
r->u.t.y3 = y + randbetween(-delta,delta);
} else {
r->u.c.x1 = x;
r->u.c.y1 = y;
r->u.c.radius = randbetween(1,delta);
}
setRandomColor(r);
normalize(r,width,height);
}
//--------------------------------------------------------------
void ofApp::keyPressed(int key){
if (key == ' '){
setRandomColor();
particles.clear();
}
}
void ChangingColor::timerEvent(QTimerEvent *event)
{
Q_UNUSED(event);
setRandomColor();
}
/* Create a random triangle or circle. */
void randomtriangle(struct triangle *r, int width, int height) {
r->type = selectShapeType();
setRandomVertexes(r,width,height);
setRandomColor(r);
normalize(r,width,height);
}
/* Handler for window-repaint event. Call back when the window first appears and
whenever the window needs to be re-painted. */
void display() {
glClear(GL_COLOR_BUFFER_BIT); // Clear the color buffer with current clearing color
// Define shapes enclosed within a pair of glBegin and glEnd
glBegin(GL_QUADS);
glColor3f(0.7f, 0.7f, 0.7f);
glVertex2f(0.0f, 1.0f);
glColor3f(0.5f, 0.5f, 0.5f);
glVertex2f(0.0f, 0.0f);
glColor3f(0.7f, 0.7f, 0.7f);
glVertex2f(1.0f, 0.0f);
glColor3f(0.5f, 0.5f, 0.5f);
glVertex2f(1.0f, 1.0f);
glEnd();
for(float i = 0.0; i < 1.0; i += 0.05){
glBegin(GL_LINES);
glColor3f(0.3f, 0.3f, 0.3f);
glVertex2f(0.0f, i);
glVertex2f(1.0f, i);
glEnd();
}
for(float i = 0.0; i < 1.0; i += 0.05){
glBegin(GL_LINES);
glColor3f(0.3f, 0.3f, 0.3f);
glVertex2f(i, 0.0f);
glVertex2f(i, 1.0f);
glEnd();
}
/*****************************************************************************/
/* AFISARE TRIUNGHIURI
*/
glBegin(GL_TRIANGLES);
for(unsigned int i = 0; i < Tris.size(); i ++){
setRandomColor();
glVertex2f(Tris.at(i).at(0).getX(), Tris.at(i).at(0).getY());
glVertex2f(Tris.at(i).at(1).getX(), Tris.at(i).at(1).getY());
glVertex2f(Tris.at(i).at(2).getX(), Tris.at(i).at(2).getY());
}
glEnd();
/*****************************************************************************/
/* AFISARE LINII
concav concav = blue
convex convex = red
concav convex = yellow */
glEnable(GL_LINE_SMOOTH);
glColor3dv(black);
//glLineWidth(1.0);
glBegin(GL_LINE_STRIP);
for (unsigned int i = 0; i < Points.size(); i++){
if (i == (Points.size() - 1)){
if ((getPointType(i) == CONVEX) && (getPointType(0) == CONVEX)){
glColor3dv(red);
glVertex2f(Points.at(i).getX(), Points.at(i).getY());
glVertex2f(Points.at(0).getX(), Points.at(0).getY());
}
else if ((getPointType(i) == CONCAVE) && (getPointType(0) == CONCAVE)){
glColor3dv(blue);
glVertex2f(Points.at(i).getX(), Points.at(i).getY());
glVertex2f(Points.at(0).getX(), Points.at(0).getY());
}
else{
glColor3dv(yellow);
glVertex2f(Points.at(i).getX(), Points.at(i).getY());
glVertex2f(Points.at(0).getX(), Points.at(0).getY());
}
}
else{
if ((getPointType(i) == CONVEX) && (getPointType(i + 1) == CONVEX)){
glColor3dv(red);
glVertex2f(Points.at(i).getX(), Points.at(i).getY());
glVertex2f(Points.at(i + 1).getX(), Points.at(i + 1).getY());
}
else if ((getPointType(i) == CONCAVE) && (getPointType(i + 1) == CONCAVE)){
glColor3dv(blue);
glVertex2f(Points.at(i).getX(), Points.at(i).getY());
glVertex2f(Points.at(i + 1).getX(), Points.at(i + 1).getY());
}
else{
glColor3dv(yellow);
glVertex2f(Points.at(i).getX(), Points.at(i).getY());
glVertex2f(Points.at(i + 1).getX(), Points.at(i + 1).getY());
}
}
}
glEnd();
/*****************************************************************************/
/* AFISARE PUNCTE
convex = green
concav = black */
glColor3dv(v);
glPointSize(4.0);
glBegin(GL_POINTS);
for (unsigned int i = 0; i < Points.size(); i++){
if (getPointType(i) == CONVEX){
glColor3dv(green);
glVertex2d(Points.at(i).getX(), Points.at(i).getY());
}
else{
glColor3dv(black);
glVertex2d(Points.at(i).getX(), Points.at(i).getY());
}
}
glEnd();
//glLineWidth(1.0);
glFlush(); // Render now
}