A genetic algorithm example using cars and Unity

Downloads

You can find the pre-built binaries for Windows, Linux and MacOSX here

How to use?

Simply run the executable. At the beginning, you can change the following settings:

• Cars per batch: How many cars spawn each time. Setting it too high (100-200 or more) may cause lag depending of your computer
• Batches: how many batches of n cars per generation. After all the batches are done, the next generation is generated and start automatically
• Checkpoint cooldown: The time cars have to reach a checkpoint. If they don't reach it in time, they die
• Cooldown scaling: Each generation, the cooldown gets multiplied by this value. The goal is to reduce progressiveley the cooldown. You can set it to 1 if you don't want the cooldown to change, or even higher if you want the cooldown to increase
• Minimum cooldown: the cooldown won't get lower than this value
• Mutation rate: it represent "1 chance out of x" for a mutation to occur. Setting it high is recommended.

What is it?

At the beginning, it's a little personnal project, and also the first time I used Unity ever. It was made for a quick demo during a presentation in my English class about AI. WARNING: The code may not be great, but it works. Also, the comments are in French