Add WIP sound generation

src/audio/garden-audio-types.ts

@@ -0,0 +1,63 @@
+import { VibePreset } from '../vibes';
+
+export type GardenAudioColorIndex = 0 | 1 | 2;
+
+export interface GardenAudioSnapshot {
+  vibe: VibePreset;
+  activeAgentCount: number;
+  agentBudgetMax: number;
+  selectedColorIndex: number;
+  isErasing: boolean;
+  introProgress: number;
+  moveSpeed: number;
+  diffusionRateTrails: number;
+  decayRateTrails: number;
+  brushEffectDuration: number;
+  clarity: number;
+}
+
+export interface GardenAudioStroke {
+  vibe: VibePreset;
+  from: ArrayLike<number>;
+  to: ArrayLike<number>;
+  canvasSize: ArrayLike<number>;
+  colorIndex: number;
+  isErasing: boolean;
+  pressure?: number;
+  velocityPixelsPerSecond?: number;
+  eraserSizePixels?: number;
+  pointerType?: string;
+}
+
+export interface GardenAudioStartOptions {
+  userGesture?: boolean;
+}
+
+export interface LoadedPianoSample {
+  midi: number;
+  buffer: AudioBuffer;
+}
+
+export interface ActivePianoVoice {
+  gain: GainNode;
+  source: AudioBufferSourceNode;
+  stopAt: number;
+}
+
+export interface PianoNote {
+  midi: number;
+  velocity: number;
+  startTime: number;
+  durationSeconds: number;
+  pan: number;
+  delaySend?: number;
+  lowpassHz?: number;
+}
+
+export interface NoiseBurst {
+  startTime: number;
+  durationSeconds: number;
+  gain: number;
+  filterHz: number;
+  pan: number;
+}