In this video we’re going to explore a way I approach reproducible pseudo-random number generation that uses calculated hashes to select a random item or property for an object. In this case we’ll be assigning hue shifted colors to text strings. This helps easily identify elements in a list by searching for both a memorable name but also a color that will always be the same for a similar string.
To convert a string into an integer using an
MD5 hash you could write something like this:
Then to convert an integer into a random color use this. In this example 256 hues will be selected from the color wheel:
This same technique can be applied to other things as well. For example we can use the hashed value to index into a lookup table of names. Other approaches could apply a specific texture to a material or instantiate a specific prefab:
System.Security.Cryptography.MD5 class is documented here: https://docs.microsoft.com/en-us/dotnet/api/system.security.cryptography.md5
More information on how hashes work on Wikipedia: https://en.wikipedia.org/wiki/Hash_function
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