From 96af50ee6ba9639a3c43bcf66cf9db235b984ffa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rapha=C3=ABl=20Forment?= <raphael.forment@gmail.com>
Date: Sat, 5 Jul 2025 22:07:46 +0000
Subject: [PATCH] new color palette

---
 index.html          | 12 ++++++
 src/ShaderWorker.ts | 93 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 105 insertions(+)

diff --git a/index.html b/index.html
index fd6ef10..e34ae86 100644
--- a/index.html
+++ b/index.html
@@ -795,6 +795,12 @@
                         <option value="rgb">RGB Split</option>
                         <option value="hsv">HSV</option>
                         <option value="rainbow">Rainbow</option>
+                        <option value="thermal">Thermal</option>
+                        <option value="neon">Neon</option>
+                        <option value="cyberpunk">Cyberpunk</option>
+                        <option value="vaporwave">Vaporwave</option>
+                        <option value="dithered">Dithered</option>
+                        <option value="palette">Palette</option>
                     </select>
                 </label>
                 <label style="color: #ccc; font-size: 12px; margin-right: 10px;">
@@ -853,6 +859,12 @@
                     <option value="rgb">RGB Split</option>
                     <option value="hsv">HSV</option>
                     <option value="rainbow">Rainbow</option>
+                    <option value="thermal">Thermal</option>
+                    <option value="neon">Neon</option>
+                    <option value="cyberpunk">Cyberpunk</option>
+                    <option value="vaporwave">Vaporwave</option>
+                    <option value="dithered">Dithered</option>
+                    <option value="palette">Palette</option>
                 </select>
             </div>
             <div class="mobile-menu-item">
diff --git a/src/ShaderWorker.ts b/src/ShaderWorker.ts
index f6a0e7f..33d820f 100644
--- a/src/ShaderWorker.ts
+++ b/src/ShaderWorker.ts
@@ -494,6 +494,24 @@ class ShaderWorker {
             case 'rainbow':
                 return this.rainbowColor(absValue);
             
+            case 'thermal':
+                return this.thermalColor(absValue);
+            
+            case 'neon':
+                return this.neonColor(absValue);
+            
+            case 'cyberpunk':
+                return this.cyberpunkColor(absValue);
+            
+            case 'vaporwave':
+                return this.vaporwaveColor(absValue);
+            
+            case 'dithered':
+                return this.ditheredColor(absValue);
+            
+            case 'palette':
+                return this.paletteColor(absValue);
+            
             default:
                 return [absValue, absValue, absValue];
         }
@@ -545,6 +563,81 @@ class ShaderWorker {
         }
     }
 
+    private thermalColor(value: number): [number, number, number] {
+        const t = value / 255.0;
+        if (t < 0.25) {
+            return [0, 0, Math.round(t * 4 * 255)];
+        } else if (t < 0.5) {
+            return [0, Math.round((t - 0.25) * 4 * 255), 255];
+        } else if (t < 0.75) {
+            return [Math.round((t - 0.5) * 4 * 255), 255, Math.round((0.75 - t) * 4 * 255)];
+        } else {
+            return [255, 255, Math.round((t - 0.75) * 4 * 255)];
+        }
+    }
+
+    private neonColor(value: number): [number, number, number] {
+        const t = value / 255.0;
+        const intensity = Math.pow(Math.sin(t * Math.PI), 2);
+        const glow = Math.pow(intensity, 0.5);
+        return [
+            Math.round(glow * 255),
+            Math.round(intensity * 255),
+            Math.round(Math.pow(intensity, 2) * 255)
+        ];
+    }
+
+    private cyberpunkColor(value: number): [number, number, number] {
+        const t = value / 255.0;
+        const phase = (t * 3) % 1;
+        if (phase < 0.33) {
+            return [Math.round(255 * (1 - phase * 3)), 0, Math.round(255 * phase * 3)];
+        } else if (phase < 0.67) {
+            const p = (phase - 0.33) * 3;
+            return [0, Math.round(255 * p), Math.round(255 * (1 - p))];
+        } else {
+            const p = (phase - 0.67) * 3;
+            return [Math.round(255 * p), Math.round(255 * (1 - p)), 255];
+        }
+    }
+
+    private vaporwaveColor(value: number): [number, number, number] {
+        const t = value / 255.0;
+        const pink = Math.sin(t * Math.PI);
+        const purple = Math.sin(t * Math.PI * 0.7 + Math.PI / 3);
+        const blue = Math.sin(t * Math.PI * 0.5 + Math.PI / 2);
+        return [
+            Math.round(255 * (0.8 + 0.2 * pink)),
+            Math.round(255 * (0.3 + 0.7 * purple)),
+            Math.round(255 * (0.6 + 0.4 * blue))
+        ];
+    }
+
+    private ditheredColor(value: number): [number, number, number] {
+        const levels = 4;
+        const step = 255 / (levels - 1);
+        const quantized = Math.round(value / step) * step;
+        const error = value - quantized;
+        const dither = (Math.random() - 0.5) * 32;
+        const final = Math.max(0, Math.min(255, quantized + error + dither));
+        return [final, final, final];
+    }
+
+    private paletteColor(value: number): [number, number, number] {
+        const palette = [
+            [0, 0, 0],
+            [87, 29, 149],
+            [191, 82, 177],
+            [249, 162, 162],
+            [255, 241, 165],
+            [134, 227, 206],
+            [29, 161, 242],
+            [255, 255, 255]
+        ];
+        const index = Math.floor((value / 255.0) * (palette.length - 1));
+        return palette[index] as [number, number, number];
+    }
+
     private sanitizeCode(code: string): string {
         // Strict whitelist approach - extended to include new interaction variables
         // Variables: x, y, t, i, mouseX, mouseY, mousePressed, mouseVX, mouseVY, mouseClickTime, touchCount, touch0X, touch0Y, touch1X, touch1Y, pinchScale, pinchRotation, accelX, accelY, accelZ, gyroX, gyroY, gyroZ