91 lines
3.3 KiB
JavaScript
91 lines
3.3 KiB
JavaScript
// Ocean Glimmer preset for LEDLab
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const BasePreset = require('./base-preset');
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const { createFrame, frameToPayload, hexToRgb, samplePalette, toIndex, clamp } = require('./frame-utils');
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class OceanGlimmerPreset extends BasePreset {
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constructor(width = 16, height = 16) {
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super(width, height);
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this.timeSeconds = 0;
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this.defaultParameters = {
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shimmer: 0.08,
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waveSpeed1: 1.2,
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waveSpeed2: 0.9,
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waveSpeed3: 0.5,
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brightness: 1.0,
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color1: '031521',
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color2: '024f6d',
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color3: '13a4a1',
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color4: '67dcd0',
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color5: 'fcdba4',
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};
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}
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renderFrame() {
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this.timeSeconds += 0.016; // Assume 60 FPS
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const frame = createFrame(this.width, this.height);
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const shimmer = this.getParameter('shimmer') || 0.08;
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const brightness = this.getParameter('brightness') || 1.0;
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const paletteStops = [
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{ stop: 0.0, color: hexToRgb(this.getParameter('color1') || '031521') },
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{ stop: 0.35, color: hexToRgb(this.getParameter('color2') || '024f6d') },
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{ stop: 0.65, color: hexToRgb(this.getParameter('color3') || '13a4a1') },
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{ stop: 0.85, color: hexToRgb(this.getParameter('color4') || '67dcd0') },
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{ stop: 1.0, color: hexToRgb(this.getParameter('color5') || 'fcdba4') },
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];
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for (let row = 0; row < this.height; ++row) {
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const v = row / Math.max(1, this.height - 1);
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for (let col = 0; col < this.width; ++col) {
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const u = col / Math.max(1, this.width - 1);
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const base =
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0.33 +
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0.26 * Math.sin(u * Math.PI * 2 + this.timeSeconds * (this.getParameter('waveSpeed1') || 1.2)) +
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0.26 * Math.sin(v * Math.PI * 2 - this.timeSeconds * (this.getParameter('waveSpeed2') || 0.9)) +
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0.26 * Math.sin((u + v) * Math.PI * 2 + this.timeSeconds * (this.getParameter('waveSpeed3') || 0.5));
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const noise = (Math.random() - 0.5) * shimmer;
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const value = clamp(base + noise, 0, 1);
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let color = samplePalette(paletteStops, value);
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// Apply brightness
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if (brightness < 1.0) {
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const rgb = hexToRgb(color);
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color = Math.round(rgb.r * brightness).toString(16).padStart(2, '0') +
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Math.round(rgb.g * brightness).toString(16).padStart(2, '0') +
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Math.round(rgb.b * brightness).toString(16).padStart(2, '0');
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}
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frame[toIndex(col, row, this.width)] = color;
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}
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}
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return frame;
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}
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getMetadata() {
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return {
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name: 'Ocean Glimmer',
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description: 'Ocean-like waves with shimmer effects',
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parameters: {
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shimmer: { type: 'range', min: 0.02, max: 0.15, step: 0.01, default: 0.08 },
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waveSpeed1: { type: 'range', min: 0.5, max: 2.0, step: 0.1, default: 1.2 },
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waveSpeed2: { type: 'range', min: 0.5, max: 2.0, step: 0.1, default: 0.9 },
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waveSpeed3: { type: 'range', min: 0.2, max: 1.0, step: 0.1, default: 0.5 },
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brightness: { type: 'range', min: 0.3, max: 1.0, step: 0.1, default: 1.0 },
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color1: { type: 'color', default: '031521' },
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color2: { type: 'color', default: '024f6d' },
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color3: { type: 'color', default: '13a4a1' },
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color4: { type: 'color', default: '67dcd0' },
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color5: { type: 'color', default: 'fcdba4' },
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},
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width: this.width,
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height: this.height,
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};
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}
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}
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module.exports = OceanGlimmerPreset;
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