Learn Game Development | JavaScript & ASM Tutorial | Build Interactive Games from Scratch!

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🎯 What You’ll Learn in This Rust Game Tutorial:
✔️ Implementing Game of Life using Rust
✔️ Using ASM Bindgen for JavaScript integration
✔️ Efficient memory management with Vectors
✔️ How to represent cells using unsigned integers
✔️ Traits in Rust: Clone, Copy, Debug, PartialEq
✔️ Understanding Enums in Rust (Dead & Alive Cells)
✔️ Using structs and methods to build the Universe
✔️ Creating a 2D grid with row and column indexing
✔️ Implementing game rules using match expressions
✔️ Counting live neighbor cells efficiently
✔️ Using modulo arithmetic for seamless edge handling
✔️ Displaying the game state using formatting functions

🛠️ Tech Stack & Tools:
✅ Rust - Safe & performant programming
✅ WebAssembly (WASM) - Running Rust in the browser
✅ JavaScript - For handling the game logic
✅ Vector Data Structure - Efficient memory management
✅ Enums & Structs - Organizing game components
Now, running the game displays a grid of cells in the console! 🎉

📢 Why Rust is Perfect for Game Development?
Rust’s memory safety, speed, and zero-cost abstractions make it perfect for game dev. Here’s why:
✅ Performance: Faster than JavaScript & Python
✅ Memory Safety: No null pointer exceptions
✅ Concurrency: Multi-threading without data races
✅ WebAssembly Support: Runs in the browser!

🎯 FAQs (Must-Read!)
🔹 Q: Can I use this code for other games?
✅ Yes! This approach can be modified for cellular automata, AI simulations, and game logic.

🔹 Q: Do I need prior Rust experience?
✅ Basic Rust knowledge helps, but this tutorial is beginner-friendly!

🔹 Q: Why use WebAssembly with Rust?
✅ WebAssembly (WASM) allows Rust to run in browsers at near-native speed.

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🔹 What You’ll Learn in This Video:
✅ How to start building a game in JavaScript
✅ Using ASM Bindgen to expose cells
✅ Representing game elements with unsigned 8-bit integers
✅ Deriving traits like Clone, Copy, Debug, and PartialEq
✅ Implementing enums and structuring the game universe
✅ Using vector-based storage for game cells
✅ Accessing and modifying cell data in the game grid
✅ Implementing game rules for cell life and death
✅ Displaying the game visually in the console

🎯 Why Watch This Tutorial?
This tutorial is a step-by-step guide that walks you through the complete game development process. We focus on fundamental programming logic, memory-efficient techniques, and best practices for creating smooth, interactive gameplay.

🛠 Tools & Technologies Used:
🖥 JavaScript | ⚡ ASM Bindgen | 🔄 Modulo Operations | 📌 Vector-Based Storage | 🚀 Game Optimization

By the end of this video, you’ll have a fully functional cellular game simulation and a solid understanding of JavaScript-based game development.

🕹 Step-by-Step Breakdown
🔹 Step 1: Setting Up the Game Structure
Before writing any code, we clean up the environment and define the core elements of our game, including the cell representation and game universe.

🔹 Step 2: Creating Cells and Exposing Them to JavaScript
Each cell in our game will be represented by an unsigned 8-bit integer. We also define multiple traits such as:
✔ Clone
✔ Copy
✔ Debug
✔ PartialEq (for equality comparison)

🔹 Step 3: Defining the Game Grid (Universe)
We create a struct to hold our game universe, which includes:
📌 Grid Width & Height
📌 Vector of Cells
📌 Methods to access and manipulate the grid

🔹 Step 4: Implementing Core Game Mechanics
In this section, we write functions to:
⚡ Convert a row-column position to an index in the vector
⚡ Access neighbors efficiently
⚡ Implement game rules

🔹 Step 5: Calculating Neighbor States
Each cell interacts with eight neighboring cells. We use delta-based logic to determine the number of live neighbors without complex if-statements.

🔹 Step 6: Applying Game Rules (Conway’s Game of Life)
We apply the fundamental rules of life and death for cells:
✔ A live cell with fewer than 2 neighbors dies (underpopulation)
✔ A live cell with 2 or 3 neighbors survives
✔ A live cell with more than 3 neighbors dies (overpopulation)
✔ A dead cell with exactly 3 neighbors becomes alive (reproduction)