float time = 0.0;
void draw() {
for (Particle p : particles) {
// love/hate vector
float lovex = 0.0;
float lovey = 0.0;
for (Particle o : particles) {
// do not compare with yourself
if (p.id != o.id) {
// calculate vector to get distance and direction
PVector v = new PVector(o.x-p.x, o.y-p.y);
float distance = v.mag();
float angle = v.heading();
// love!
float love = 1.0 / distance;
// or hate...
if (distance<2.0) love = -love;
// mood factor
love *= p.moodSimilarity(o);
// not too fast!
love *= 0.5;
// update love vector
lovex += love * cos(angle);
lovey += love * sin(angle);
}
// calculated love vector will be our speed in resultant direction
p.dx = lovex;
p.dy = lovey;
}
}
// update and draw
for (Particle p : particles) {
p.update();
p.draw();
}
1 Like
How have you declared the global variable particles?
Itās important to define the datatype of the items a container stores (generics):
2 Likes
WOW, Thanks for your help! I realized what the problem was and I could fix the code error.
by the way, Iām a rookie just learning to programļ¼
2 Likes