feat: Add .next() method to enclose and start a new bin

README.md

@@ -49,6 +49,8 @@ let input = [ // any object with width & height is OK since v2.1.0
 ];
 
 packer.addArray(input); // Start packing with input array
+packer.next(); // Start a new packer bin
+packer.addArray(input.slice(2)); // Adding to the new bin
 packer.bins.forEach(bin => {
     console.log(bin.rects);
 });
@@ -91,6 +93,10 @@ Adds a rect to an existing bin or creates a new one to accomodate it. Accept any
 
 Adds multiple rects. Since the input is automatically sorted before adding this approach usually leads to fewer bins created than separate calls to ```.add()```
 
+#### ```packer.next()```
+
+Stop adding new element to the current bin and return a new bin. After calling `next()` all elements will no longer added to previous bins.
+
 #### ```let bins = packer.save()```
 
 Save current bins settings and free area to an Array of objects for later use. Better to `JSON.stringify(bins)` and store in file.

TODO

@@ -4,4 +4,8 @@
 ✔ 更新README.md @done(19-05-26 17:34)
 ✔ Test增加Generic type部分 @done(19-05-26 17:04)
 ✔ 发布2.1.0版 @done(19-05-26 18:20)
-☐ 增加Bin.border控制参数
+☐ 增加Bin.border控制参数
+✔ `hash`二次排序 @done(19-06-04 15:39)
+☐ 完善注释和文档
+    ✔ 发布gh-pages @done(19-06-04 15:39)
+✔ 增加翻片儿`next()` @done(19-06-04 15:39)

dist/maxrects-packer.d.ts

@@ -178,6 +178,15 @@ declare class MaxRectsPacker<T extends IRectangle = Rectangle> {
      * @memberof MaxRectsPacker
      */
     addArray(rects: T[]): void;
+    /**
+     * Stop adding new element to the current bin and return a new bin.
+     *
+     * note: After calling `next()` all elements will no longer added to previous bins.
+     *
+     * @returns {Bin}
+     * @memberof MaxRectsPacker
+     */
+    next(): Bin;
     /**
      * Load bins to the packer, overwrite exist bins
      * @param {MaxRectsBin[]} bins MaxRectsBin objects
@@ -200,6 +209,8 @@ declare class MaxRectsPacker<T extends IRectangle = Rectangle> {
      * @memberof MaxRectsPacker
      */
     private sort;
+    private _currentBinIndex;
+    readonly currentBinIndex: number;
 }
 
 declare class MaxRectsBin<T extends IRectangle = Rectangle> extends Bin {