@sbj42/maze-generator-core - npm Package Compare versions

Comparing version 0.1.3 to 0.1.4

package.json

 {
   "name": "@sbj42/maze-generator-core",
-  "version": "0.1.3",
+  "version": "0.1.4",
   "description": "Core library for maze generator algorithms",
@@ -5,0 +5,0 @@ "main": "src",

src/GridMask.js

@@ -28,2 +28,6 @@ /**
     this._blockWidth = (width+31) >> 5;
+    if (options._grid) {
+        this._grid = options._grid;
+        return;
+    }
     this._grid = new Array(this._blockWidth * height);
@@ -55,2 +59,14 @@ var initBlock = interior ? ~0 : 0;
 /**
+ * Returns a copy of the GridMask.
+ *
+ * @return {GridMask}
+ */
+GridMask.prototype.clone = function() {
+    return new GridMask(this.width(), this.height(), {
+        exterior: this._exterior,
+        _grid: this._grid.slice()
+    });
+};
+
+/**
  * Returns the boolean value at the specified cell
@@ -93,2 +109,28 @@ *
 
+/**
+ * ...
+ *
+ * @param {integer} x
+ * @param {integer} y
+ * @param {boolean} [value=true]
+ */
+GridMask.prototype.testAndSet = function(x, y, value) {
+    if (value == null)
+        value = true;
+    if (x < 0 || x >= this._width || y < 0 || y >= this._height) {
+        if (this._exterior == value)
+            return false;
+        throw new Error('cell out of bounds: ' + x + ',' + y);
+    }
+    var index = y * this._blockWidth + (x >> 5);
+    var mask = 1 << (x & 31);
+    if (((this._grid[index] & mask) != 0) == value)
+        return false;
+    if (value)
+        this._grid[index] |= mask;
+    else
+        this._grid[index] &= ~mask;
+    return true;
+};
+
 module.exports = GridMask;

No alert changes

Improved metrics

Total package byte prevSize

18874

increased by5.78%

Lines of code

473

increased by9.24%

No dependency changes