vyyy

frontend/TrainingGrid.js

@@ -0,0 +1,30 @@
+import { TrainingCell } from "./TrainingCell.js";
+
+export class TrainingGrid {
+    /**
+     * @param {TrainingCell[]} cells
+     */
+    constructor(cells) {
+        if (cells[0] === undefined) {
+            throw new Error("cells must be a non empty array");
+        }
+
+        if (!(cells[0] instanceof TrainingCell)) {
+            throw new Error("cells arg must be an array of TrainingCell, but it isn't");
+        }
+
+        /** @type {TrainingCell[]} cells*/
+        this.cells = cells;
+
+        /** @type {number} the width and/or height of the training grid */
+        this.dim = Math.round(Math.sqrt(cells.length));
+
+        if (this.dim ** 2 !== cells.length) {
+            throw new Error("Training grid must be quadratic (height === width), but it isn't");
+        }
+    }
+
+    clone() {
+        return new TrainingGrid(this.cells.slice());
+    }
+}