Question

I’m new to programming and I’m trying to build a die roller game in C#.

The program asks the user for the number of sides and then rolls a dice with a random number.

I have the following pseudocode:

1. ask user for the number of sides.
2. roll the die with a random number with max range being the number of sides.
3. tell the user the number rolled

My question is how do I roll the dice with generating a random number in range specified by the user?

Answer 1

The System.Random class is commonly used to generate casual random numbers.

It has an overload of a method called Next which generates a random integer that is greater than or equal to 0 and strictly less than the passed integer argument.

Thus if the user chooses an n-sided die, and you have an instance of Random r,

r.Next(n) + 1

will generate a random integer between 1 and n inclusive.

It is good practice to create a single instance of Random and reuse it, because if you create several instances close together they will all generate the same numbers.