Refactor rotation overview matrices

src/js/core/utils.js

@@ -632,3 +632,54 @@ export function formatItemsPerSecond(speed, double = false, separator = T.global
               round2Digits(speed).toString().replace(".", separator)
           ) + (double ? "  " + T.ingame.buildingPlacement.infoTexts.itemsPerSecondDouble : "");
 }
+
+/**
+ * Rotates a flat 3x3 matrix clockwise
+ * Entries:
+ * 0 lo
+ * 1 mo
+ * 2 ro
+ * 3 lm
+ * 4 mm
+ * 5 rm
+ * 6 lu
+ * 7 mu
+ * 8 ru
+ * @param {Array<number>} flatMatrix
+ */
+
+export function rotateFlatMatrix3x3(flatMatrix) {
+    return [
+        flatMatrix[6],
+        flatMatrix[3],
+        flatMatrix[0],
+        flatMatrix[7],
+        flatMatrix[4],
+        flatMatrix[1],
+        flatMatrix[8],
+        flatMatrix[5],
+        flatMatrix[2],
+    ];
+}
+
+/**
+ * Generates rotated variants of the matrix
+ * @param {Array<number>} originalMatrix
+ * @returns {Object<number, Array<number>>}
+ */
+export function generateMatrixRotations(originalMatrix) {
+    const result = {
+        0: originalMatrix,
+    };
+
+    originalMatrix = rotateFlatMatrix3x3(originalMatrix);
+    result[90] = originalMatrix;
+
+    originalMatrix = rotateFlatMatrix3x3(originalMatrix);
+    result[180] = originalMatrix;
+
+    originalMatrix = rotateFlatMatrix3x3(originalMatrix);
+    result[270] = originalMatrix;
+
+    return result;
+}