Correct Tile Movement for a 2048 Game
In 2048, players slide tiles left, right, up, or down in an attempt to match and merge like-valued tiles. When tiles are merged, their values are combined to create a single tile with a higher value. Players continue making moves until no further merges are possible and the game ends. However, achieving correct tile movement can be challenging, especially when multiple tiles can be merged.
Merging Problem
In the provided code for the processCommand function, the tile movement is subject to a merging issue. The problem arises when two tiles of the same value are adjacent to each other and the player makes a move that could potentially merge these tiles. If the board is scanned in the wrong direction, the tiles will be merged twice instead of once.
Solution: Scanning in the Opposite Direction
To resolve this issue, it is necessary to scan the board in the opposite direction of the player's move. This allows for tiles to be merged and marked as merged, preventing subsequent merges in the same column or row.
When the player moves upwards, for example, the board should be scanned from the bottom towards the top. This ensures that the bottom-most tiles are merged first, and any subsequent merges are prevented. Similar logic applies to other directions of movement.
Optimized Code
Additionally, the provided code exhibits code duplication in its nested for-loops for each case. This can be optimized by using a single for-loop and using a switch statement to handle the different cases. Here's an example of the optimized code:
for i := 1; i <p>In this optimized code, the updateBoardDown() and updateBoardUp() functions handle the tile movement for down and up directions, respectively. Similar functions can be implemented for the left and right directions.</p>
The above is the detailed content of How to Avoid Double Merging in the 2048 Game?. For more information, please follow other related articles on the PHP Chinese website!

This article explains Go's package import mechanisms: named imports (e.g., import "fmt") and blank imports (e.g., import _ "fmt"). Named imports make package contents accessible, while blank imports only execute t

This article explains Beego's NewFlash() function for inter-page data transfer in web applications. It focuses on using NewFlash() to display temporary messages (success, error, warning) between controllers, leveraging the session mechanism. Limita

This article details efficient conversion of MySQL query results into Go struct slices. It emphasizes using database/sql's Scan method for optimal performance, avoiding manual parsing. Best practices for struct field mapping using db tags and robus

This article demonstrates creating mocks and stubs in Go for unit testing. It emphasizes using interfaces, provides examples of mock implementations, and discusses best practices like keeping mocks focused and using assertion libraries. The articl

This article explores Go's custom type constraints for generics. It details how interfaces define minimum type requirements for generic functions, improving type safety and code reusability. The article also discusses limitations and best practices

This article details efficient file writing in Go, comparing os.WriteFile (suitable for small files) with os.OpenFile and buffered writes (optimal for large files). It emphasizes robust error handling, using defer, and checking for specific errors.

The article discusses writing unit tests in Go, covering best practices, mocking techniques, and tools for efficient test management.

This article explores using tracing tools to analyze Go application execution flow. It discusses manual and automatic instrumentation techniques, comparing tools like Jaeger, Zipkin, and OpenTelemetry, and highlighting effective data visualization


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

SublimeText3 Linux new version
SublimeText3 Linux latest version

Notepad++7.3.1
Easy-to-use and free code editor

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

Dreamweaver CS6
Visual web development tools
