Unsigned int and bit masks

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1

Godot Version

v4.3

Question

I am trying to make a chess program using Godot to learn more about the engine and gdscript as a language. I want to use 64-bit integers to represent different aspects of my chess board but signed integers throw problems when I try to use numbers that would go negative. Are there any alternate unsigned 64-bit data types? I do not care about the number in my case; I care more about where the 1s and 0s are in my int so that I can use them to manipulate and interpret the board. So if anyone knows how to use unsigned 64-bit ints or any alternate data type that can accomplish the same job, I would greatly appreciate your help.

2

Not sure if this is useful, but you can use int’s and directly manipulate the bits.

You can use the 0b literal for binary representation,…

var x = 0b1001 # x is 9

3

I was using this,
var board = 0xffff00000000ffff
This representation would be the starting positions of a chess board, but it gets truncated and the value changes such that when I go to check the bits using a shift loop and checking even or odd I get the wrong answers, and debugging shows me that the number I want is truncated to fit and that screws it up

4

Why not using an Array[bool]?

5

You could use a PackedIntArray. There is a 32 bit version if you need.