V1.1

Giant refactor. added layers. ui overhaul. added save/load and we now got presets

docs/js/shapes/Spiral1.js

@@ -0,0 +1,60 @@
+/**
+ * Spiral1 - Dual-direction spiral pattern
+ */
+class Spiral1 extends BaseShape {
+  static config = [
+    { type: 'range', min: 1, max: 50, defaultValue: 20, property: 'sides' },
+    { type: 'range', min: 1, max: 600, defaultValue: 240, property: 'width' },
+    { type: 'color', defaultValue: '#4287f5', property: 'colour' },
+  ];
+
+  constructor(sides, width, colour) {
+    super();
+    this.sides = sides;
+    this.width = width;
+    this.colour = colour;
+  }
+
+  draw(elapsed) {
+    this.updateFilters(elapsed);
+    const rotation = elapsed * (this.speedMultiplier / 100);
+    const rot = Math.round((this.sides - 2) * 180 / this.sides * 2);
+    const piv = 360 / this.sides;
+    let stt = 0.5 * Math.PI - rad(rot);
+    let end = 0;
+    const n = this.width / ((this.width / 10) * (this.width / 10));
+
+    for (let i = 1; i < this.sides + 1; i++) {
+      end = stt + rad(rot);
+      ctx.lineWidth = 5;
+      
+      ctx.beginPath();
+      ctx.arc(
+        centerX + Math.cos(rad(90 + piv * i + rotation)) * this.width,
+        centerY + Math.sin(rad(90 + piv * i + rotation)) * this.width,
+        this.width,
+        stt + rad(rotation) - (stt - end) / 2,
+        end + rad(rotation) + rad(n),
+        0
+      );
+      ctx.strokeStyle = this.colour;
+      ctx.stroke();
+
+      ctx.beginPath();
+      ctx.arc(
+        centerX + Math.cos(rad(90 + piv * i - rotation)) * this.width,
+        centerY + Math.sin(rad(90 + piv * i - rotation)) * this.width,
+        this.width,
+        stt - rad(rotation),
+        end - (end - stt) / 2 + rad(n) - rad(rotation),
+        0
+      );
+      ctx.strokeStyle = this.colour;
+      ctx.stroke();
+
+      stt = end + -(rad(rot - piv));
+    }
+  }
+}
+
+shapeRegistry.register('Spiral1', Spiral1);