Merge pull request #43 from moolordking/master [skip ci]

New Lava Lamp Effect

Author: mavi0

web/priv/js_effects/LavaLamp.js

@@ -0,0 +1,45 @@
+let t = 0;
+
+return class LavaLamp {
+  constructor(display) {
+    this.display = display;
+
+    this.#clear();
+  }
+
+  #clear() {
+    this.display.flush();
+  }
+
+  rounder(n, d) {
+    n *= 2;
+    if (n > 1) {
+      n = 1;
+    } else if (n < 0.8) {
+      n = 0;
+    }
+    d /= this.display.width/4;
+    if (d > 255) {
+      d = 255;
+    }
+    return n * 255 - d;
+  }
+
+  dist(x1,y1,x2,y2) {
+    return (x1-x2)**2 + (y1-y2)**2;
+  }
+
+  update() {
+    t += 0.05;
+    for (let x = 0; x < this.display.width; x++) {
+      for (let y = 0; y < this.display.height; y++) {
+        let dist = this.dist(this.display.width/2,this.display.height/2, x, y);
+        let r = Math.abs((Math.sin((x/10)**1.5 + (t/3))+Math.cos((y/10)**1.5 + t)));
+        let g = Math.abs((Math.sin((x/1)/10 - t)+Math.cos((y/1)/10 - (t/2))));
+        let b = 1-Math.abs((Math.cos((x/0.8)/10 + t*2)+Math.tan((y/1.2)/10 - (t/2))));
+        this.display.setPixel(x, y, [this.rounder(r - 0.5,dist), this.rounder(g - 0.5, dist), this.rounder(b,dist)]);
+      }
+    }
+    this.display.flush();
+  }
+}