Скачать или смотреть How to Randomly Spawn Multiple Enemies in Game Maker Studio

Discover the steps to successfully implement multiple enemy spawning in your Game Maker project. Learn the common pitfalls and how to fix them!
---
This video is based on the question https://stackoverflow.com/q/74006273/ asked by the user 'm.18' ( https://stackoverflow.com/u/10937125/ ) and on the answer https://stackoverflow.com/a/74011074/ provided by the user 'Steven' ( https://stackoverflow.com/u/2735344/ ) 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: Spawning Enemies on Game Maker

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.
---
How to Randomly Spawn Multiple Enemies in Game Maker Studio

When diving into game development, one of the most exciting yet challenging features to implement is the spawning of enemies. This feature can significantly enhance gameplay and provide a dynamic experience. If you're using Game Maker Studio and facing an issue where only one enemy spawns while you intended for multiple enemies to populate your game grid, you're not alone. This guide will guide you through understanding the problem and offer clear, concise solutions.

Identifying the Problem

The challenge arises from the need to spawn several enemies randomly across a defined grid. In your current setup, your code might look something like this:

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

Here, you want to create multiple instances of enemies, but if your code only produces one enemy instead of eight, there could be a few explanations. Below are two common scenarios to consider.

Possible Scenarios for the Issue

1. Level Object Placement

One of the most typical mistakes in Game Maker Studio is forgetting to place the "Level" object in the room. If the object with the spawning code is not instantiated in the game room, the code you wrote won’t execute at all. Make sure:

The Level object is correctly placed in your room.

Check for any issues in the object’s settings that might prevent it from running its code during the game.

2. Randomization Failures

Another common issue relies on how randomization works within Game Maker. If your randomization generates the same coordinates for multiple enemies, they may end up spawning on top of each other, giving the illusion that only one enemy is present. Consider the following checks:

Ensure the random range being generated is adequate compared to your grid size. The values used in irandom_range should allow for enough space to prevent the same coordinates from being chosen repeatedly.

Check if your grid size (grid_width and grid_height) is appropriate for your game layout. If it's too small, enemies are likely to spawn at the same location because there are limited options.

Conclusion

By ensuring that your Level object is properly instantiated and verifying the randomness in your spawn coordinates, you should be able to solve the issue of multiple enemies not appearing in your game. Remember, game development is often about trial and error. Don’t hesitate to experiment with your code until you achieve the desired outcome! Happy gaming!