65 lines
1 KiB
Plaintext
65 lines
1 KiB
Plaintext
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Star[] stars = new Star[400];
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void setup() {
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size(800,800);
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smooth();
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stroke(255);
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strokeWeight(5);
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for (int i = 0; i < stars.length; i++) {
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stars[i] = new Star();
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}
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}
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void draw() {
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background(0);
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translate(width/2, height/2);
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for (int i = 0; i < stars.length; i++) {
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stars[i].update();
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stars[i].show();
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}
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}
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class Star {
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float x;
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float y;
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float z;
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float pz;
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Star() {
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x = random(-width, width);
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y = random(-height, height);
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z = random(0, 2000);
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pz = z;
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}
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void update() {
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pz = z + 100;
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z = z - 20;
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if (z<1) {
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z = 2000;
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y = random(-height, height);
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x = random(-width, width);
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pz = z;
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}
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}
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void show() {
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fill(255);
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noStroke();
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float sx = map(x/z, 0, 1, 0, width);
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float sy = map(y/z, 0, 1, 0, width);
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float r = map(z-1000, 0, width, 16, 0);
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ellipse(sx, sy, r, r);
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float px = map(x/pz, 0, 1, 0, width);
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float py = map(y/pz, 0, 1, 0, height);
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stroke(255);
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line(px, py, sx, sy);
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}
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}
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