Pulse animation

server/lamp/index.ts

@@ -18,6 +18,7 @@ import StrobeAnimation from "./strobe";
 import Strobe2Animation from "./strobe2";
 import AlternatingAnimation from "./alternating";
 import MatrixAnimation from "./matrix";
+import PulseAnimation from "./pulse";
 import SlidingWindowAnimation from "./slidingWindow";
 import RainbowSlidingWindowAnimation from './rainbowSlidingWindow';
 import FlashingApertureAnimation from './flashingAperture';
@@ -33,7 +34,7 @@ lamp.use(express.json());
 
 export function initLamp() {
   const LAMP_FPS: number = env.LAMP_FPS;
-  const GRADIENT_DURATION = 1000;
+  const GRADIENT_DURATION: number = 1000;
 
   const animations: LampAnimation[] = [
     new NoneAnimation(),
@@ -45,6 +46,7 @@ export function initLamp() {
     new Strobe2Animation(),
     new AlternatingAnimation(20),
     new MatrixAnimation(),
+    new PulseAnimation(),
     new GameOfLifeAnimation(),
     new SlidingWindowAnimation(),
     new RainbowSlidingWindowAnimation(),

server/lamp/pulse.ts

@@ -0,0 +1,45 @@
+import { NB_LED } from '../NB_LED';
+import { HtmlColors } from "../htmlColors";
+import {ColorOption, LampAnimation, NumberOption, SelectOption} from "../types/LampAnimation";
+import {normalize} from "../utils";
+import {LAMP_FPS, TOP_LED_NB} from '../env';
+import { Color } from '../color';
+
+export default class PulseAnimation implements LampAnimation<[ColorOption, ColorOption, SelectOption, NumberOption, NumberOption, NumberOption, NumberOption]> {
+    public name = "Pulse";
+    public options: [ColorOption, ColorOption, SelectOption, NumberOption, NumberOption, NumberOption, NumberOption] = [
+        { name: "Start color", type: "color", default: HtmlColors.cyan },
+        { name: "End color", type: "color", default: HtmlColors.cyan },
+        { name: "Branches", type: "select", options: [
+            {optionValue: "rl", label: "Both"},
+            {optionValue: "l", label: "Clockwise"},
+            {optionValue: "r", label: "Counter-Clockwise"},
+          ], default: "rl" },
+        { name: "Speed", type: "number", default: 10, min: 1, max: 100, step: 1, display: 'range' },
+        { name: "# of Pulses", type: "number", default: 1, min: 1, max: 10, step: 1, display: 'range' },
+        { name: "Rotation speed", type: "number", default: 0, min: 0, max: 360, step: 1, display: 'range' },
+        { name: "Top Led Number", type: "number", default: TOP_LED_NB, min: 0, max: NB_LED, step: 1, display: 'range' }
+    ];
+
+    public animate(t, display, options) {
+        const [color1, color2, branches, speed, pulses, rotationSpeed, topLedNb] = options;
+        const realSpeed = speed / 10 * LAMP_FPS / 60;
+
+        const isFull = branches === 'rl';
+        const maxProgress = Math.ceil(NB_LED / (isFull ? 2 : 1));
+        const progress = (t * realSpeed) % maxProgress;
+        const rotationProgress = t * rotationSpeed / 360;
+
+        for (let pulse = 0; pulse < pulses; pulse++) {
+            const pulseProgress = (progress + (pulse / pulses * maxProgress)) % maxProgress;
+            const progressedColor = Color.overlap(color1, color2, pulseProgress / maxProgress);
+            if (branches.includes('l')) {
+                display.drawDot(normalize(Math.round(pulseProgress + topLedNb + rotationProgress)), progressedColor);
+            }
+            if (branches.includes('r')) {
+                display.drawDot(normalize(Math.round(-pulseProgress + topLedNb + rotationProgress)), progressedColor);
+            }
+        }
+    }
+}
+