wrapping for pointy hexagons

src/hex.js

@@ -35,7 +35,37 @@ function roundOff(hex) {
 }
 
 export default class Hex extends Point {
-	static offsetToCube (col, row) {
+	static qrToCube (q, r) {
+		return {
+			x: q,
+			y: computeY(q, r),
+			z: r,
+		};
+	}
+
+	static cubeToEvenR ({x, y, z}) {
+		const col = x + (z + (z & 1)) / 2;;
+		const row = z;
+
+		return {col, row};
+	}
+
+	static evenRToCube (col, row) {
+		const x = col - (row + (row & 1)) / 2;;
+		const z = row;
+		const y = -x - z;
+
+		return new Hex(x, y, z);
+	}
+
+	static cubeToEvenQ ({x, y, z}) {
+		const col = x;
+		const row = z + (x + (x & 1)) / 2;
+
+		return {col, row};
+	}
+
+	static evenQToCube (col, row) {
 		const x = col;
 		const z = row - (col + (col & 1)) / 2;
 		const y = -x - z;
@@ -137,11 +167,4 @@ export default class Hex extends Point {
 		this.y = computeY(this.x, this.z);
 		return this;
 	}
-
-	getOffsetHex () {
-		const col = this.x;
-		const row = this.z + (this.x + (this.x & 1)) / 2;
-
-		return {col, row};
-	}
 }