void SpringStroke::addPoint(float x, float y)
{
line->addPoint(x, y);
vector<Particle*> particles = line->getPoints();
int newIndex = particles.size()-1;
Particle* newPar = particles[newIndex];
if (newIndex > 0) {
Spring *s = new Spring();
Particle *prevPar = particles[newIndex-1];
s->setup(prevPar, newPar);
springs.push_back(s);
// lock particle if close to previous one
if ((*prevPar - *newPar).length() < lockDistance) {
newPar->stickiness = 100;
// newPar->locked = true;
}
}
else {
newPar->stickiness = 100;
// newPar->locked = true;
}
}
void wave::setupSpring(){
points.clear();
springs.clear();
for (int i = 0; i < amount; i++) {
Spring spring;
spring.setup( strength, restLength, invMass);
springs.push_back( spring );
Point_ point;
float step = width/(amount*1.0-1.0);
ofVec2f pos(i*step , ypos);
point.p = pos;
point.pp = pos;
if(i == 0 || i == amount-1 ){
point.isFixed = true;
}else{
point.isFixed = false;
}
points.push_back(point);
}
}
void Demo::setupVerlet() {
physic.integrator = new Verlet();
mouse.setMass(10);
//add gravity
physic.vBehaviour.push_back(&force);
// add integrator
physic.integrator = new Verlet();
//weave particles
NUM_PARTICLES = CLOTH_ROW * CLOTH_COLS;
physic.particles = new Particle[NUM_PARTICLES];
short sx = (ofGetWindowWidth() - (CLOTH_COLS * CLOTH_SIZE)) * 0.5;
short sy = (ofGetWindowHeight() - (CLOTH_ROW * CLOTH_SIZE)) * 0.5;
short x, y, count = 0;
// add vector for the verlet
vector< vector<Particle> > vParticle;
for (x = 0; x < CLOTH_COLS; x++) {
vector<Particle> row;
for (y = 0; y < CLOTH_ROW; y++) {
physic.particles[count].fixed = (y == 0) ? true : false;
physic.particles[count].pos = new Vector();
physic.particles[count].acc = new Vector();
physic.particles[count].vel = new Vector();
physic.particles[count].moveTo(
(sx + x * CLOTH_SIZE),
(sy + y * CLOTH_SIZE)
);
physic.particles[count].setRadius(DOT_SIZE);
physic.particles[count].setMass(10);
row.push_back(physic.particles[count]);
count++;
}
vParticle.push_back(row);
}
count = 0;
//cout << vParticle.size() << " " << vParticle[0].size() << endl;
for (x = 0; x < vParticle.size(); x++) {
for (y = 0; y < vParticle[x].size(); y++) {
if (x > 0) {
Spring spring;
spring.setup(
physic.particles[count],
vParticle[x-1][y],
CLOTH_SIZE,
0.5
);
physic.vSpring.push_back(spring);
}
if (y > 0) {
Spring spring;
spring.setup(
physic.particles[count],
vParticle[x][y-1],
CLOTH_SIZE,
0.5
);
physic.vSpring.push_back(spring);
}
count++;
}
}
Spring spring;
spring.setup(mouse, vParticle[CLOTH_COLS/2][CLOTH_ROW/2], 4, 4);
physic.vSpring.push_back(spring);
//vParticle[0][0].fixed = true;
// vParticle[CLOTH_COLS - 1][0].fixed = true;
}