哈哈哈哈哈哈笑到现在！

我好像可以试试一个隐藏功能/表犯傻

这教程写的也太迷离了

嗯

嗯

雾

青少年表情包什么的

噢

嗯

猜行了木有

据说就行了

神 神马

import java.util.Calendar;
Agent cloud; // The black hole
Agent[] movers; // The thunderbolts
int randHue; // storing random hue values
boolean lu = false;
void setup() {
size(2000, 100);
smooth();
colorMode(HSB, 360, 100, 100);
background(random(360), 20, 80);
cloud = new Cloud(5, 1, 160); // (speed, transparency, radius) of the black hole
movers = new Agent[50]; // the more Agents, the denser the thunderstorm
randHue = (int) random(361);
for (int i = 0; i < movers.length; i++) {
// thunderbolts (speed, size, hue, transparency)
// thunderbolts get bigger, more transparent and faster with higher count
movers[i] = new Agent(5+i, 1+i, randHue+i*int(random(10)), 100/(i+1));
}
}
void draw() {
cloud.run(); // display and update the black hole
for (Agent m : movers) {
m.run(); // display and update the thunderbolts
}
if (lu) {
saveFrame("line-######.png");
//lu=!lu;
}
}
void mouseClicked() { // restart thunderstorm by click
background(random(360), 20, 80);
randHue = (int) random(361);
for (int i = 0; i < movers.length; i++) {
movers[i].erase( randHue+i*int(random(10)) );
}
}
void keyPressed() { // save a screeny (Java-only)
if (key=='s' || key=='S') saveFrame(timestamp()+"_##.png");
}
String timestamp() {
Calendar now = Calendar.getInstance();
return String.format("%1$ty%1$tm%1$td_%1$tH%1$tM%1$tS", now);
}
class Agent {
PVector loc, vel;
PVector prevLoc;
float step;
int hue;
float thickness, alpha;
Agent(float _step, float _thickness, int _hue, float _alpha) {
hue = _hue;
alpha = _alpha;
loc = new PVector(width/2, height/2);
vel = new PVector(0, 0);
prevLoc = loc.get();
step = _step;
thickness = _thickness;
}
void run() {
prevLoc = loc.get();
// Velocity direction
// vel = PVector.random2D(); <-- this doesn't work in Processing.js!
vel.x = random(-1.0, 1.0);
vel.y = random(-1.0, 1.0);
// Velocity magnitude
vel.mult(step);
// Add velocity to Location
loc.add(vel);
offScreen(); // boundary behaviour
display();
}
void display() {
stroke(hue, 100, 100, alpha);
strokeWeight(thickness);
line(prevLoc.x, prevLoc.y, loc.x, loc.y);
}
void offScreen() {
if (loc.x > width) {
loc.x = 0;
prevLoc.x = loc.x;
}
if (loc.x < 0) {
loc.x = width;
prevLoc.x = loc.x;
}
if (loc.y > height) {
loc.y = 0;
prevLoc.y = loc.y;
}
if (loc.y < 0) {
loc.y = height;
prevLoc.y = loc.y;
}
}
void erase(int _hue) { // method to set back location and hue of the bolt
loc.mult(0);
loc.x = width/2;
loc.y = height/2;
hue = _hue;
}
}
class Cloud extends Agent {
float rad;
Cloud(float _step, float _alpha, float _rad) {
super(_step, 0, 0, _alpha);
rad = _rad;
}
void display() {
noStroke();
fill(hue, 0, 0, alpha);
ellipse(loc.x, loc.y, rad, rad);
}
}
void keyReleased() {
if (key=='l') {
lu=!lu;
}
}