Need help with making number system for idle game

Question

So, I want to create a new game. I have problems with how to store large numbers in the game and how to output them. I have written a small pseudo code that contains everything I need to play the game (Did I forget anything?).

# represent  our number
struct BigNumber {
    double base; # (or mantissa)
    double exponent; 
}


# create new number 
function NewBigNumber(double b, double exp) {
    return BigNumber{
        base = b;
        exponent = exp;
    }   
}


# now if we have to BigNumbers we want add operation (+)
# and other operations (-), (*), (/) 
# +
function adding(BigNumber n, BigNumber m){
    # if numbers have same exponent part
    if (n.exponent = m.exponent) {
        # adding base here
        double new_base = n.base + m.base;

        #create new BigNumber with new base
        return NewBigNumber(new_base, n.exponent);


    } else {
        #?????????
    }
}


# - 
function subtraction(BigNumber n, BigNumber m){

}

# *
function multiplication(BigNumber n, BigNumber m){

}

# /
function division(BigNumber n, BigNumber m){

}

As you can see, I will use Scientific notation

I have a problem with the addition operation (and other), what if the exponent part of numbers are different?

Next I have this code.

# If we have achievement systems
# we need function equals of two numbers
function equals(BigNumber n, BigNumber m){
    if (n.base = m.base && n.exponent = m.exponent){
        return True;
    } else {
         return false;
    }
}

And finally, I need the function to output numbers nicely.

suffices = [
    'K', 'M', 'B', 'T', 'Qa', 'Qi', 'Sx', 'Sp', 'Oc', 'No', 'Dc', 'Ud',
    'Dd', 'Td', 'Qad', 'Qid', 'Sxd', 'Spd', 'Od', 'Nd', 'V', 'Uv', 'Dv',
    'Tv', 'Qav', 'Qiv', 'Sxv', 'Spv', 'Ov', 'Nv', 'Tt'
];
# now we need "good view numbers" function
# for exapmle 
# 1000 - 1000
# 1000000 - 1Million
function(BigNumber n) {
    #????????
}

Answer 1

This code appears to be JavaScript. Since ECMA-262, JavaScript has a native BigInt class.

• It works with all the basic math operators +, -, *, /, % and ** (division will round to 0).
• It also works with the comparison operators like ==, >, <= etc.
• It can be expressed as a literal by using the suffix n. (const ONE_NONILLION = 1000000000000000000000000000000n).

Using this class will likely give you better performance with a much smaller code footprint and most importantly less bugs than inventing your own.

Unfortunately this class is not yet supported on Edge and Safari. If you want to support these browsers, then you will need a polyfill.