Stack3web
diff --git a/‎22-Javascript-with-the-Canvas-API/02-Maze copy/index.js‎
Lines changed: 22 additions & 4 deletions b/‎22-Javascript-with-the-Canvas-API/02-Maze copy/index.js‎
Lines changed: 22 additions & 4 deletions
diff --git a/‎22-Javascript-with-the-Canvas-API/README.md‎
Lines changed: 6 additions & 4 deletions b/‎22-Javascript-with-the-Canvas-API/README.md‎
Lines changed: 6 additions & 4 deletions
@@ -32,6 +32,22 @@ World.add(world, walls)
 
 // Maze generation
 
+const shuffle = (arr) => {
+  let counter = arr.length
+
+  while(counter > 0 ) {
+    const index = Math.floor(Math.random() * counter)
+
+    counter--
+
+    const temp = arr[counter]
+    arr[counter] = arr[index]
+    arr[index] = temp
+  }
+
+  return arr
+}
+
 const grid = Array(cells)
   .fill(null)
   .map(() => Array(cells).fill(false))
@@ -60,12 +76,13 @@ const stepThroughCell = (row, column) => {
   grid[row][column] = true
 
   // Assemble randomly-ordered list of neighbors
-  const neighbors = [
+  const neighbors = shuffle([
     [row - 1, column],
     [row, column + 1],
     [row + 1, column],
     [row, column - 1],
-  ]
+  ])
+  console.log(neighbors);
 
   // For each neighbor....
 
@@ -78,5 +95,6 @@ const stepThroughCell = (row, column) => {
   // Visit that next cell
 }
 
-stepThroughCell(startRow, startColumn)
-console.log(grid)
+// stepThroughCell(startRow, startColumn)
+stepThroughCell(1, 1)
+// console.log(grid)
@@ -40,13 +40,13 @@ World.add(world, shape)
 // Maze generation
 const grid = []
 
-for(let i = 0; i < 3; i++) {
+for (let i = 0; i < 3; i++) {
   grid.push([])
-  for(let j = 0; j < 3; j++) {
+  for (let j = 0; j < 3; j++) {
     grid[i].push(false)
   }
 }
-console.log(grid);
+console.log(grid)
 ```
 
 ```javascript
@@ -61,4 +61,6 @@ console.log(grid)
 
 ## 11. 15 Guiding Comments
 
-## 12. 16 Neighbor Coordinates
+## 12. 16 Neighbor Coordinates
+
+## 13. 17 Shuffling Neighbor Pairs