Add gegl:waves.

source/gegl/exports.ts

@@ -10,3 +10,4 @@ export * from './plasma.js';
 export * from './simplex-noise.js';
 export * from './softglow.js';
 export * from './stereographic-projection.js';
+export * from './waves.js';

source/gegl/waves.ts

@@ -0,0 +1,36 @@
+import {BaseOperation} from './base.js';
+
+export interface WavesParameters {
+  amplitude: number;
+  aspect: number;
+  clamp: boolean;
+  period: number;
+  phi: number;
+  samplerType: 'nearest' | 'linear' | 'cubic' | 'nohalo' | 'lohalo';
+  x: number;
+  y: number;
+}
+
+export class Waves extends BaseOperation<WavesParameters> {
+  public static default: WavesParameters = {
+    amplitude: 25,
+    aspect: 1,
+    clamp: false,
+    period: 100,
+    phi: 0,
+    samplerType: 'cubic',
+    x: 0.5,
+    y: 0.5,
+  };
+
+  public get default() {
+    return Waves.default;
+  }
+
+  public appendCrop = false;
+  public name = 'gegl:waves';
+
+  constructor(parameters?: Partial<WavesParameters>) {
+    super({...Waves.default, ...parameters});
+  }
+}