问题描述:
ArrayList particles;
void setup() {
size(800,800);
particles = new ArrayList();
smooth();
}
void draw() {
particles.add(new Particle());
background(255);
for (int i = 0; i < particles.size(); i++ ) {
Particle p = (Particle) particles.get(i);
p.run();
p.gravity();
p.display();
}
if (particles.size() > 100) {
particles.remove(0);
}
}
void setup() {
size(800,800);
particles = new ArrayList();
smooth();
}
void draw() {
particles.add(new Particle());
background(255);
for (int i = 0; i < particles.size(); i++ ) {
Particle p = (Particle) particles.get(i);
p.run();
p.gravity();
p.display();
}
if (particles.size() > 100) {
particles.remove(0);
}
}
问题解答:
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