Really cool game

asteroid.js

@@ -0,0 +1,68 @@
+class Asteroid {
+  constructor(pos, r, isGolden = random() < 0.1) {
+    if (pos) {
+      this.pos = pos.copy();
+      this.r = r ? r / 2 : random(30, 50);
+    } else {
+      this.pos = createVector(random(width), random(height));
+      this.r = random(30, 50);
+      while (dist(this.pos.x, this.pos.y, ship.pos.x, ship.pos.y) < 100) {
+        this.pos = createVector(random(width), random(height));
+      }
+    }
+    this.vel = p5.Vector.random2D();
+    this.vel.mult(random(1, 3));
+    this.total = floor(random(5, 15));
+    this.offset = [];
+    for (let i = 0; i < this.total; i++) {
+      this.offset[i] = random(-this.r * 0.5, this.r * 0.5);
+    }
+    this.isGolden = isGolden;
+    this.hitsLeft = isGolden ? 3 : 1;
+  }
+
+  update() {
+    this.pos.add(this.vel);
+  }
+
+  edges() {
+    if (this.pos.x > width + this.r) this.pos.x = -this.r;
+    else if (this.pos.x < -this.r) this.pos.x = width + this.r;
+    if (this.pos.y > height + this.r) this.pos.y = -this.r;
+    else if (this.pos.y < -this.r) this.pos.y = height + this.r;
+  }
+
+  hits(bullet) {
+    let d = dist(this.pos.x, this.pos.y, bullet.pos.x, bullet.pos.y);
+    return d < this.r;
+  }
+
+  breakup() {
+    let newA = [];
+    this.hitsLeft--;
+    if (this.hitsLeft > 0) {
+      newA.push(this);
+    } else if (this.r > 20) {
+      newA.push(new Asteroid(this.pos, this.r, this.isGolden));
+      newA.push(new Asteroid(this.pos, this.r, this.isGolden));
+    }
+    return newA;
+  }
+
+  show() {
+    push();
+    translate(this.pos.x, this.pos.y);
+    noFill();
+    stroke(this.isGolden ? color(255, 215, 0) : 255); // Golden or white
+    beginShape();
+    for (let i = 0; i < this.total; i++) {
+      let angle = map(i, 0, this.total, 0, TWO_PI);
+      let r = this.r + this.offset[i];
+      let x = r * cos(angle);
+      let y = r * sin(angle);
+      vertex(x, y);
+    }
+    endShape(CLOSE);
+    pop();
+  }
+}