Скачать или смотреть How to Check Two Typescript Object Arrays for Equivalence with Multiple Equivalencies in Game Costs

Discover how to efficiently evaluate resource payments in TypeScript for game mechanics where objects have multiple equivalencies. Learn step-by-step techniques for achieving equivalence checks.
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This video is based on the question https://stackoverflow.com/q/72791232/ asked by the user 'GreatDane' ( https://stackoverflow.com/u/19436465/ ) and on the answer https://stackoverflow.com/a/72795154/ provided by the user 'Chris Hamilton' ( https://stackoverflow.com/u/12914833/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Checking Resource Payment Equivalence in TypeScript

In game development, a common requirement is to verify if a player's selections match the costs of actions they wish to perform. When dealing with complex objects like resource types, especially when some classes can substitute for others, this becomes a challenging problem. If you've been facing issues with checking two TypeScript object arrays for equivalence—specifically in scenarios where some objects have multiple equivalencies—this guide will guide you through creating a robust evaluation function.

Problem Overview

In our scenario, we are dealing with a hand of resources in a game. These resources are categorized into Elements (like Fire and Water) and Philosophies (like Good and Evil). Players use these resources to fulfill various action costs.

Cost Example

For instance, an example cost could be:

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

This illustrates that in order to perform a certain action, players must pay for these resources, but they can use corresponding resources from their hand.

The challenge lies in implementing an evaluation function that accurately checks if the player’s selection can cover the cost, especially since costs can include general categories and wildcard resources like Void.

The Solution

To solve this challenge, we need to create a structured approach that allows us to verify resource equality effectively. Below are the steps broken down for clarity:

Step 1: Organizing Resources

First, let's reorganize the resources into clear categories. Consider using string constants instead of numeric enums to make debugging easier:

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

Step 2: Create Data Structures for Resource Counts

Next, we'll convert arrays of payments and costs into an object that counts occurrences of each resource. This allows easy comparison later on:

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

Step 3: Implementing the Evaluation Logic

Now, we move on to the logic where costs are processed to see if they can be covered. We need to prioritize specific resources first and then proceed to general categories:

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

Conclusion

By organizing our data and implementing a step-by-step evaluation logic, we can accurately determine if the player's selected resources fulfill the costs required for their actions. This structured approach not only improves the clarity of the code but also enhances debugging and future modifications.

With these steps, you'll be equipped to handle resource payment evaluations in your TypeScript game environment effectively. Happy coding!