Скачать или смотреть Fixing the Pac-Man Movement: Ensure Smooth Movement with JavaScript!

Discover how to solve the issue of your Pac-Man not moving smoothly in JavaScript with practical code solutions and advice.
---
This video is based on the question https://stackoverflow.com/q/64305219/ asked by the user 'D1i2m3' ( https://stackoverflow.com/u/14430907/ ) and on the answer https://stackoverflow.com/a/64305552/ provided by the user 'Patrick' ( https://stackoverflow.com/u/14421656/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Element isn't moving smoothly

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Fixing the Pac-Man Movement: Ensure Smooth Movement with JavaScript!

If you've been diving into the world of JavaScript but found yourself stuck with your Pac-Man project, you're not alone! Many beginners encounter issues with smooth animations. In this post, we’ll address a common problem: your element (a button that represents Pac-Man) is not moving smoothly along the screen. Instead of moving just a little bit every tick, it jumps too far.

The Problem

You're trying to create a simple Pac-Man-style game, and your goal is to move your character by 2 pixels every 100 milliseconds. However, your current implementation results in it moving an entire 20 pixels in one second! What’s going wrong? Most likely, the issue lies in how you're using setInterval() and setTimeout().

Understanding the Current Code

Let's take a look at the relevant part of your code:

[[See Video to Reveal this Text or Code Snippet]]

In this snippet, you're using a loop within the setTimeout(), which causes the move() function to execute in quick succession, rather than at the desired intervals. That's why Pac-Man is jumping too far across the game area.

The Solution

To make Pac-Man move smoothly, you need to ensure that each movement is correctly timed. Here’s how you can fix it:

Adding the Proper Delay

You can achieve the smooth moving effect by modifying your checkAndMove() function to use the following code:

[[See Video to Reveal this Text or Code Snippet]]

Why This Works

Timing: Adding 100 * i ensures that each call to setTimeout() is delayed by increasing multiples of 100 milliseconds.

Smooth animation: This means that your move() function will be called at 0ms, 100ms, 200ms, and so on; resulting in a gradual and smooth movement instead of a sudden jump.

Alternative Approach

While the above fix is effective, you might also consider simplifying the logic further. Instead of using nested intervals, you can utilize just one setInterval() to regularly call move(). Here’s an example of what that might look like:

[[See Video to Reveal this Text or Code Snippet]]

This method reduces the complexity of your code and provides a clean, smooth animation.

Conclusion

With these adjustments, your Pac-Man should now move smoothly as you intended! Remember: debugging and refining are important aspects of learning to code. If you opt to experiment further, consider researching more advanced techniques, such as requesting animation frames for smoother animations, and have fun building your game!

If you have any questions or would like further assistance with your JavaScript projects, feel free to ask. Happy coding!