feat: ledlab

presets/ocean-glimmer-preset.js

@@ -0,0 +1,79 @@
+// Ocean Glimmer preset for LEDLab
+
+const BasePreset = require('./base-preset');
+const { createFrame, frameToPayload, hexToRgb, samplePalette, toIndex, clamp } = require('./frame-utils');
+
+class OceanGlimmerPreset extends BasePreset {
+  constructor(width = 16, height = 16) {
+    super(width, height);
+    this.timeSeconds = 0;
+    this.paletteStops = [
+      { stop: 0.0, color: hexToRgb('031521') },
+      { stop: 0.35, color: hexToRgb('024f6d') },
+      { stop: 0.65, color: hexToRgb('13a4a1') },
+      { stop: 0.85, color: hexToRgb('67dcd0') },
+      { stop: 1.0, color: hexToRgb('fcdba4') },
+    ];
+    this.defaultParameters = {
+      shimmer: 0.08,
+      waveSpeed1: 1.2,
+      waveSpeed2: 0.9,
+      waveSpeed3: 0.5,
+      brightness: 1.0,
+    };
+  }
+
+  renderFrame() {
+    this.timeSeconds += 0.016; // Assume 60 FPS
+
+    const frame = createFrame(this.width, this.height);
+    const shimmer = this.getParameter('shimmer') || 0.08;
+    const brightness = this.getParameter('brightness') || 1.0;
+
+    for (let row = 0; row < this.height; ++row) {
+      const v = row / Math.max(1, this.height - 1);
+      for (let col = 0; col < this.width; ++col) {
+        const u = col / Math.max(1, this.width - 1);
+        const base =
+          0.33 +
+          0.26 * Math.sin(u * Math.PI * 2 + this.timeSeconds * (this.getParameter('waveSpeed1') || 1.2)) +
+          0.26 * Math.sin(v * Math.PI * 2 - this.timeSeconds * (this.getParameter('waveSpeed2') || 0.9)) +
+          0.26 * Math.sin((u + v) * Math.PI * 2 + this.timeSeconds * (this.getParameter('waveSpeed3') || 0.5));
+        const noise = (Math.random() - 0.5) * shimmer;
+        const value = clamp(base + noise, 0, 1);
+
+        let color = samplePalette(this.paletteStops, value);
+
+        // Apply brightness
+        if (brightness < 1.0) {
+          const rgb = hexToRgb(color);
+          color = Math.round(rgb.r * brightness).toString(16).padStart(2, '0') +
+                  Math.round(rgb.g * brightness).toString(16).padStart(2, '0') +
+                  Math.round(rgb.b * brightness).toString(16).padStart(2, '0');
+        }
+
+        frame[toIndex(col, row, this.width)] = color;
+      }
+    }
+
+    return frame;
+  }
+
+  getMetadata() {
+    return {
+      name: 'Ocean Glimmer',
+      description: 'Ocean-like waves with shimmer effects',
+      parameters: {
+        shimmer: { type: 'range', min: 0.02, max: 0.15, step: 0.01, default: 0.08 },
+        waveSpeed1: { type: 'range', min: 0.5, max: 2.0, step: 0.1, default: 1.2 },
+        waveSpeed2: { type: 'range', min: 0.5, max: 2.0, step: 0.1, default: 0.9 },
+        waveSpeed3: { type: 'range', min: 0.2, max: 1.0, step: 0.1, default: 0.5 },
+        brightness: { type: 'range', min: 0.3, max: 1.0, step: 0.1, default: 1.0 },
+      },
+      width: this.width,
+      height: this.height,
+    };
+  }
+}
+
+module.exports = OceanGlimmerPreset;