Add visualizer view

src/app/visualization/BiomeNoiseVisualizer.ts

@@ -0,0 +1,36 @@
+import SimplexNoise from 'simplex-noise'
+import { DataModel, Path } from "@mcschema/core";
+import { Visualizer } from './VisualizerView';
+
+export class BiomeNoiseVisualizer implements Visualizer {
+  private noise: SimplexNoise
+
+  constructor() {
+    this.noise = new SimplexNoise()
+  }
+
+  path() {
+    return new Path(['generator', 'biome_source'])
+  }
+
+  active(model: DataModel) {
+    const biomeSource = new Path(['generator', 'biome_source'])
+    return model.get(biomeSource) !== undefined
+      && model.get(biomeSource.push('type')) === 'minecraft:multi_noise'
+  }
+
+  draw(model: DataModel, img: ImageData) {
+    const biomeSource = model.get(new Path(['generator', 'biome_source']))
+    const data = img.data
+    for (let x = 0; x < 200; x += 1) {
+      for (let y = 0; y < 100; y += 1) {
+        const i = (y * (img.width * 4)) + (x * 4)
+        const b = (this.noise.noise2D(x/50, y/50) > 0) ? 0 : 255
+        data[i] = b
+        data[i + 1] = b
+        data[i + 2] = b
+        data[i + 3] = 255
+      }
+    }
+  }
+}