Unfortunately I have to use npm

src/state.ts

@@ -0,0 +1,29 @@
+export default class State {
+    colors: number[]
+    maxCracks: number
+    crackGrid: number[]
+    height: number
+    width: number
+
+    constructor(colors: number[], maxCracks: number, height: number, width: number) {
+        this.colors = colors
+        this.maxCracks = maxCracks
+        this.height = height
+        this.width = width
+        this.crackGrid = []
+
+        for (let x = 0; x < width; x++) {
+            for (let y = 0; y < height; y++) {
+                this.crackGrid[y * width + x] = 10000
+            }
+        }
+
+        for (let i = 0; i < 16; i++) {
+            this.crackGrid[Math.floor(Math.random() * (height * width))] = Math.ceil(Math.random() * 360)
+        }
+    }
+
+    getRandomColor(): number {
+        return this.colors[Math.floor(Math.random() * this.colors.length)]
+    }
+}