Better Launchpad Colours

package.json

@@ -4,9 +4,11 @@
   "description": "Library of useful Max for Live objects",
   "private": true,
   "dependencies": {
+    "core-js": "^3.39.0",
     "dotenv": "^8.2.0"
   },
   "devDependencies": {
+    "@types/core-js": "^2.5.8",
     "prettier": "^3.3.3",
     "ts-loader": "^9.5.1",
     "typescript": "^5.5.3",

src/config/index.ts

@@ -0,0 +1 @@
+export { default as launchpadColourIndices } from "./launchpadColourIndices";

src/config/launchpadColourIndices.ts

@@ -0,0 +1,76 @@
+export default [
+  56, // salmon
+  61, // frank orange
+  100, // dirty gold
+  73, // lemonade
+  85, // lime
+  87, // highlighter green
+  88, // bianchi
+  28, // turquoise
+  91, // sky blue
+  92, // sapphire
+  40, // periwinkle
+  82, // orchid
+  58, // magenta
+  3, // white
+
+  106, // fire hydrant red
+  127, // tangerine
+  117, // sand
+  14, // sunshine yellow
+  86, // terminal green
+  19, // forest
+  65, // tiffany blue
+  68, // cyan
+  39, // cerulean
+  43, // united nations blue
+  93, // amtethyst
+  70, // iris
+  53, // flamingo
+  2, // aluminum
+
+  105, // terracotta
+  107, // light salmon
+  8, // whiskey
+  73, // canary
+  113, // primrose
+  16, // wild willow
+  24, // dark sea green
+  114, // honeydew
+  114, // pale turquoise
+  118, // periwinkle
+  2, // fog
+  39, // dull lavender
+  119, // whisper
+  118, // silver chalice
+
+  2, // dusty pink
+  105, // barley corn
+  118, // pale oyster; difficult
+  110, // dark khaki
+  18, // pistachio
+  102, // dollar bill
+  89, // neptune
+  89, // nepal
+  36, // polo blue
+  40, // vista blue
+  2, // amethyst smoke
+  118, // lilac
+  70, // turkish rose
+  117, // steel
+
+  121, // medium carmine
+  83, // red ochre
+  71, // coffee
+  15, // durian yellow
+  19, // pomelo green
+  27, // apple
+  65, // aquamarine
+  68, // sea blue
+  104, // cosmic cobalt
+  112, // sapphire
+  71, // plump purple
+  70, // purpureus
+  55, // fuchsia rose
+  103, // eclipse
+];

src/maxForLive.d.ts

@@ -23,8 +23,9 @@ declare global {
     mode: number;
     type: string;
     info: string;
-    property: string;
+    property: string | null;
     call: Function;
+    freepeer: Function;
     get: Function;
     getcount: Function;
     getstring: Function;

src/objects/betterLaunchpadColours/betterLaunchpadColours.ts

@@ -0,0 +1,88 @@
+import "core-js";
+import type { Id } from "../../types";
+import { log, ApiManager, getCount } from "../../util";
+import { launchpadColourIndices } from "../../config";
+
+autowatch = 1;
+outlets = 3;
+
+enum LightType {
+  on,
+  blink,
+  pulse,
+  off,
+}
+
+const apiMan = new ApiManager();
+
+export function bang() {
+  const numberOfTracks = getCount("live_set tracks");
+  for (
+    let trackIndex = 0;
+    trackIndex < Math.min(8, numberOfTracks);
+    trackIndex++
+  ) {
+    const numberOfClipSlots = getCount(
+      `live_set tracks ${trackIndex} clip_slots`,
+    );
+    for (
+      let clipSlotIndex = 0;
+      clipSlotIndex < Math.min(8, numberOfClipSlots);
+      clipSlotIndex++
+    ) {
+      const clipSlotId = `live_set tracks ${trackIndex} clip_slots ${clipSlotIndex} has_clip`;
+      const clipId = `live_set tracks ${trackIndex} clip_slots ${clipSlotIndex} clip color_index`;
+      const padIndex = getPadIndex(trackIndex, clipSlotIndex);
+      const clipSlot = apiMan.make(clipSlotId, (hasClip) => {
+        log(
+          `Track ${trackIndex + 1} clip slot ${clipSlotIndex + 1} ${hasClip === 0 ? "is empty" : "has a clip"}`,
+        );
+        if (hasClip === 0) {
+          clipSlot.killChildren();
+          return;
+        }
+        const clip = clipSlot.add(clipId, (colourIndex) => {
+          log(
+            `Track ${trackIndex + 1} clip in slot ${clipSlotIndex + 1} has color index ${colourIndex} (pad index ${padIndex})`,
+          );
+          sendPadLightMidiMessage(
+            LightType.on,
+            padIndex,
+            launchpadColourIndices[colourIndex],
+          );
+        });
+        if (clip) {
+          clip.start();
+        }
+      });
+      log("starting to observe slots and clips");
+      clipSlot.start();
+    }
+  }
+}
+
+function getPadIndex(trackIndex: number, clipSlotIndex: number) {
+  return 80 - clipSlotIndex * 10 + trackIndex + 1;
+}
+
+function sendPadLightMidiMessage(
+  lightType: LightType,
+  position: number,
+  colourIndex?: number,
+) {
+  switch (lightType) {
+    case LightType.on:
+      outlet(0, [144, position, colourIndex]);
+      break;
+    case LightType.blink:
+      outlet(0, [144, position, 0]);
+      outlet(1, [145, position, colourIndex]);
+      break;
+    case LightType.pulse:
+      outlet(2, [146, position, colourIndex]);
+      break;
+    case LightType.off:
+      outlet(0, [144, position, 0]);
+      break;
+  }
+}

src/objects/betterLaunchpadColours/index.ts

@@ -0,0 +1 @@
+export * from "./betterLaunchpadColours";