Imagine standing before a blank canvas, ready to paint your own picture without any prior constraints. That's the feeling you can achieve when developing a game from scratch, without using a ready-made game engine
This challenge might seem daunting at first, but it hides plenty of benefits that will greatly enrich your journey as a game developer
First, you'll gain a deeper, more thorough understanding of game programming fundamentals, from memory management all the way to handling graphics and physics. This deep understanding will let you solve problems more efficiently, and will help you noticeably develop your programming skills
Second, you'll have complete, precise control over every aspect of your game, from user interface design all the way to complex gameplay mechanics. You won't be bound by the limits of a particular engine—instead, you'll have complete freedom to design a unique and innovative experience
This gives you the ability to fully customize your script, letting you improve the game's performance and tweak it however you like, without any restrictions. On top of that, you'll gain priceless, invaluable experience—experience that's hard to get when relying on ready-made game engines
So, how do you start your journey of building your first game without a game engine?
1- Choosing a Programming Language and the Core Tools:
When choosing the right programming language for your project, you'll find several options in front of you, each with its own pros and cons. For example, C++ is considered a strong choice for developing high-performance games, thanks to its speed and efficiency, though it requires advanced programming experience and a deep understanding of memory management
C#, on the other hand, is an easier language to learn, and offers a flexible development environment, but it might not be as efficient as C++ for complex games
As for Java, it's a general-purpose language used in game development, but it might not be the ideal choice for games that require extremely high performance
Alongside choosing a language, you'll need graphics libraries that let you render the game on screen. OpenGL and DirectX are common choices, providing a powerful application programming interface (API) for rendering 2D and 3D graphics. OpenGL is considered more portable across systems, while DirectX is specifically optimized for Windows systems
As for the SDL (Simple DirectMedia Layer) library, it's a simpler library that's easier for beginners to work with, supports many operating systems, and is an excellent choice for trying out small game development projects before moving on to more complex options
Remember that this choice depends heavily on your level of experience and the specifications of the game you intend to develop—starting with SDL might be easier, while you might need OpenGL or DirectX for games with advanced graphics
2- Game Design and Core Architecture:
Before diving into the sea of programming, my friend, you need to draw a clear roadmap for the game you want to create. Good design is the foundation for building a solid, scalable game
Think of it like building a house: you wouldn't start pouring the foundation before laying out precise engineering blueprints, would you? Here, game design is those blueprints. This design shapes the game's core architecture, which serves as the skeleton that carries all its components
Think about how you'll manage events and inputs in your game, how its elements interact with one another. For example, how will the game handle the player pressing the jump button? This is what's known as event handling
Then there's the graphics side—how will characters and environments be rendered? Will you rely on simple 2D graphics or complex 3D graphics? Remember that you're not obligated to create high-resolution graphics; simplicity can be your best weapon early on
Don't forget physics either—how will characters move? How will balls interact with each other on collision? All these aspects need careful planning
And to make developing a large game easier for yourself, it's recommended to follow software design patterns. Patterns like Model-View-Controller (MVC) or Entity Component System (ECS) will genuinely help you organize your code, and make it easier to add new features or make changes later on
This way, you'll maintain an organized, easy-to-understand structure, even as the game grows and your codebase expands. Remember that good planning now will save you a lot of effort and time later
3- The Core Components of a Game (Practical Examples):
Let's now go over the core components that form the essence of any game, even if you're building it from scratch without relying on a game engine
Imagine, for example, a simple game featuring a ball moving on screen. To achieve that:
You'll first need input management. This stage is concerned with translating the player's commands into instructions the program understands. If you want to move the ball using the arrow keys, your system needs to detect each key press and translate it into a change in the ball's direction or speed This requires you to write a script that responds to these events and updates the game's data accordingly
As for rendering, it's responsible for displaying the game's elements on screen. You'll need to use a graphics library (like OpenGL or DirectX) to draw the ball, and determine its color, size, and position on screen at every moment Here you'll deal with the principles of 2D or 3D rendering, and you might need to work with light and shadow to add more realism
Then comes the role of the core game logic, the beating heart of the game. This stage determines how the ball behaves, how it interacts with the edges of the screen, how fast it moves, and what rules govern it
Here you'll write code that continuously updates the game's state, by calculating the ball's new position on every frame
And finally comes the role of collision detection, an important element to ensure the game runs smoothly. In the ball example, you might want to prevent it from leaving the screen, or perhaps add a wall that stops the ball from passing through it
This requires developing algorithms that determine whether the ball has collided with anything else, and what the appropriate response to that collision is
All these components, even though they seem simple in this example game, form the foundation of any game, no matter how complex, and represent an exciting challenge for an independent game developer. Through them, you build up the core concepts and elements you can then develop further
Potential Challenges and Difficulties
Let's be honest, your journey of developing a game from scratch without resorting to a game engine isn't paved with roses. You'll face plenty of challenges that require patience, perseverance, and determination
The first, without a doubt, is programming complexity. Instead of relying on the ready-made libraries and simplified functions a game engine provides, you'll be responsible for building everything from A to Z, from memory management all the way to graphics processing
This means diving deep into programming details, which might take much longer than you'd expect
Second, expect your game's development time to stretch out noticeably. Every small feature or function will need more time and effort to build from scratch, compared to using a game engine that already provides these functions
This requires you to manage your time efficiently and plan all the development stages carefully. You'll also need an advanced level of knowledge in both programming and graphics, since the task goes beyond just writing instructions—it requires a deep understanding of algorithms, building 3D models, and writing graphics code
Finally, don't overlook the possibility of not reaching satisfactory results at first. Without enough experience, you might run into technical problems that are hard to solve, or you might not be able to achieve the level of quality you're aiming for in graphics or performance
So, it's essential to start with relatively small projects to test your abilities and develop your skills before taking on bigger, more complex ones
Remember, this path is full of challenges, but it greatly enriches your experience and gives you a deep understanding of how games work under the hood, making you a more capable developer in the future