ng-game | Game demo giving at ng-europe

From the docs for std::print:

Note that stdout is frequently line-buffered by default so it may be necessary to use io::stdout().flush() to ensure the output is emitted immediately.

So looks like you need to call io::stdout().flush().

You can use cargo tree -i to see what is depending on a particular crate:

I ran into a problem playing with your code. For some reason the left arrow graphic messes up the centering. When I changed the character, this worked well:

Because randNum is a positive number, numAbsolute will be equal to randNum.

That of course means that input - randNum + numAbsolute will always be equal to input. And unless input is equal to zero, then it will always be larger than 1. So the first else if will always be true, and the rest won't be checked.

I believe that the purpose is to take the difference between the input and the randNum, and get the absolute value of that:

In PowerShell (as in most other programming languages), $totals = ... means that you assign the result of the expression at the right side is assigned to the variable ($totals) at the left side.
To display the contents of the variable ($totals), you might use the Write-Output $totals, Write-Host $totals, Out-Defualt $totals, along with a lot of other output cmdlets.
Anyways, in PowerShell, it is generally not necessary to use a cmdlet in instances where the output is displayed by default. For example:

continue has type ! (AKA "never"), which can coerce into any other type, since no values of it can exist.

The rand "symbol" is the name of an external crate, which is in the root namespace irrespective of any use statements. It defines a function thread_rng() that is also available (through namespace-qualification with rand::) irrespective of your use statements.

Therefore, even without your use statements, you can do:

Some googling has shown me that binary crates just have an extra link step, so I should be able to link against them, right?

No. It's not that simple. Plus that extra step creates an executable file rather than a library file. An executable cannot be used as a library.

I know a lot of Rust packages have both a library and a binary in them, but what do you do when an author does not seem to follow this pattern?

You can:

• Ask them on GitHub to publish a library.
• Fork the crate and make your own library (which you can do since it is published with the usual dual “Apache License, Version 2.0” + “MIT” license).

There isn't an automated way to use a binary crate as a library because in particular:

• Rust won't generate a library.
• Since the crate is missing a src/lib.rs file, nothing is exported. This is akin to have all items in that crate private. You wouldn't be able to use anything.

I think I've gotten the program to respond on a mouse click. The issue seems to be that your if statement that checks for the mouse click is outside of the draw function, which loops forever, so it never checks the if statement. I tried putting that if statement in a mousePressed function (which gets called on a mouse click regardless of where you are in the code), and it seems to work now (or at least it executes the code inside the if statement):