PHP implementation of jigsaw puzzle in WeChat mini program

In recent years, with the rapid development of mobile Internet, WeChat applet, as a lightweight application, has received more and more attention and use. In the development process of small programs, PHP, as a programming language with high efficiency and reliability, has also been widely used.

In this article, we will take a jigsaw puzzle as an example to introduce how to use PHP language to implement game functions in WeChat mini programs. First, we need to understand the basic framework and API interface of WeChat applet.

The framework of the WeChat mini program consists of three parts: WXML, WXSS and JS. WXML is used to define the page structure of the mini program, WXSS is used to define the style of the page, and JS is used to implement the page. logic function. When implementing game functions, we need to use the API interfaces provided by the mini program, such as: wx.getSystemInfo(), wx.createCanvasContext(), wx.getImageInfo(), wx.downloadFile(), etc.

Next, we will explain the specific PHP code implementation process.

1. Front-end implementation of small game

In the front-end implementation of the small program, we need to implement a game scene similar to a puzzle. The main implementation steps are as follows:

1) Loading game resources: First, you need to use the wx.getImageInfo() API interface to obtain the picture resources of the puzzle game, including original pictures and pictures of puzzle pieces;

2) Processing game slices: convert the original The picture is divided into several pieces, and at the beginning of the game, these blocks are arranged in random order to achieve a puzzle effect;

3) Game interaction: the movement and exchange of puzzle pieces is realized when the user touches or clicks the screen until Restore the state of the original picture and complete the game;

4) Game end processing: Determine whether the game is completed. If it is completed, it will prompt the game to be successful. Otherwise, it will prompt the game to fail and restart.

2. Mini game back-end implementation

In the back-end implementation of the mini program, we need to implement a PHP file to process the requests sent to the server by the mini program front-end , including the following functions:

1) Picture upload function: when the user selects a picture, the mini program front-end sends the picture to the PHP server, and the PHP server saves the picture locally on the server;

2) Image splitting function: The PHP program needs to split the image file into several pieces to prepare the mini program front-end for jigsaw puzzles;

3) Receive game completion request: When the user completes the game, the mini program The program front-end sends the completion information to the PHP server, and the PHP server determines whether the game is completed. If it is completed, it returns "success", otherwise it returns "fail".

3. Issues that need attention during the implementation process

When implementing the jigsaw puzzle function in the WeChat applet, the following issues need to be noted:

1) Communication between the front end and the back end of the mini game: The front end and the back end of the mini game communicate through the HTTP protocol. The PHP file must receive the POST request from the front end and return the corresponding JSON data;

2) Optimization of image segmentation algorithm: The image segmentation algorithm determines the quality of the game experience and needs to be carefully designed to avoid game lags and delays;

3) Code maintainability and scalability: When writing code, The maintainability and scalability of the code need to be considered to facilitate subsequent feature updates and repairs.

The above is the detailed process and precautions for using PHP language to implement puzzle games in WeChat mini programs. I hope it will inspire and help students who are developing WeChat mini program games.

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