DOTS-Arkanoid

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Clone of the classic arcade game built with Unity DOTS

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![Arkanoid logo](https://raw.githubusercontent.com/EugenyN/DOTS-Arkanoid/main/Images/icon.png)

# DOTS Arkanoid

It's a clone of the classic arcade game created with the Unity DOTS technologies. The game is based on the original Arkanoid gameplay. And the visual style refers to the games of the 16-bit era.

The goal of this project is to get to know Unity DOTS better. The DOTS (Data-Oriented Technology Stack) is a set of technologies developed by Unity for building high-performance, multithreaded code. The most important part of DOTS is the ECS component system, which allows to write code in a data oriented way. The DOTS Arkanoid project uses physics and rendering built on ECS. Some technical details are described below.

![scr1](https://raw.githubusercontent.com/EugenyN/DOTS-Arkanoid/main/Images/1s.png) ![scr2](https://raw.githubusercontent.com/EugenyN/DOTS-Arkanoid/main/Images/2s.png)
![scr3](https://raw.githubusercontent.com/EugenyN/DOTS-Arkanoid/main/Images/3s.png) ![scr4](https://raw.githubusercontent.com/EugenyN/DOTS-Arkanoid/main/Images/4s.png)

## Game design details

* Original game mechanics and retro look inspired by [Arkanoid](https://en.wikipedia.org/wiki/Arkanoid) arcade game and SNES Arkanoid: Doh It Again 1997 by Taito. Local coop mode inspired by Block Block (World 910910) arcade game by Capcom.
* For input you can use touch screen, keyboard (A, D, Left, Right, Space, Enter), a mouse (only player 1) and gamepads (Xbox Controller/XInput)
* Catch, Enlarge, Laser, Disruption and other power-ups are implemented; hi-score and ball speedup mechanics are implemented as well.
* 5 original stages are included, arcade version of field size 13x18 is used.
* The ball movement and bouncing physics is close to the original Arkanoid physics.
* Press Alt+Enter to switch between full screen and windowed mode (for desktop builds).

## Tech details

* I tried to avoid excessive sync points in the simulation code. Burst compilation and jobs scheduling is used for most jobs.
* URP + [Entities Graphics](https://docs.unity3d.com/Packages/com.unity.entities.graphics@6.5/manual/index.html) with shader for UV coord. animation.
* [DOTS Physics](https://docs.unity3d.com/Packages/com.unity.physics@latest/index.html) for triggers (ICollisionEventsJob), queries (CastCollider) and masks filtering
* You can use "F1" cheat button to spawn multiple balls.
* To enable Benchmark mode, make BenchmarkLevelsSettings active and deactivate LevelsSettings in the scene. This mode simulates 1 thousand or more balls and 20 thousand blocks.

## How to run

* Open the project in Unity, load `Assets/Scenes/Arkanoid.unity` and enter Play mode.
* To remove the "Display 1 no cameras rendering" message in Unity, uncheck "Warn if no cameras rendering" by right-clicking the three vertical dots (or the tab itself) in the top-right corner of the Game view.

## Links

* [Systems Interaction in Entity-Component-System (Events)](https://medium.com/@ben.rasooli/systems-interaction-in-entity-component-system-events-4a050153c8ac)
* [Unity DOTS forum](https://forum.unity.com/forums/data-oriented-technology-stack.147/)
* [Introduction to the DOTS for advanced Unity developers](https://unity.com/resources/introduction-to-dots-ebook)
* [Arkanoid StrategyWiki](https://strategywiki.org/wiki/Arkanoid/Gameplay)

## Third party resources

* "Press Start 2P" font, designed by CodeMan38 (OFL)
* Title logo "Wonder Boy/Sega" by http://arcade.photonstorm.com/
* Sprites from Arkanoid: Doh it Again 1997 SNES/Taito
* Sound effects from Arkanoid II NES/Taito
* Original Arkanoid gameplay by Taito Corporation

## Download

You can download DOTS Arkanoid packages for Android and Windows on the [Releases page](https://github.com/EugenyN/DOTS-Arkanoid/releases).

## License

Third-party resources listed above are not covered by the MIT license and remain under their respective owners' licenses and copyrights.

DOTS-Arkanoid

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