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Task/Zig-zag-matrix/JavaScript/zig-zag-matrix.js

@@ -0,0 +1,32 @@
+function ZigZagMatrix(n) {
+    this.height = n;
+    this.width = n;
+
+    this.mtx = [];
+    for (var i = 0; i < n; i++)
+        this.mtx[i] = [];
+
+    var i=1, j=1;
+    for (var e = 0; e < n*n; e++) {
+        this.mtx[i-1][j-1] = e;
+        if ((i + j) % 2 == 0) {
+            // Even stripes
+            if (j < n) j ++;
+            else       i += 2;
+            if (i > 1) i --;
+        } else {
+            // Odd stripes
+            if (i < n) i ++;
+            else       j += 2;
+            if (j > 1) j --;
+        }
+    }
+}
+ZigZagMatrix.prototype = Matrix.prototype;
+
+var z = new ZigZagMatrix(5);
+print(z);
+print();
+
+z = new ZigZagMatrix(4);
+print(z);