This is the Day25's milestorn challenge project.

• Each turn of the game the app will randomly pick either rock, paper, or scissors.
• Each turn the app will either prompt the player to win or lose.
• The player must then tap the correct move to win or lose the game.
• If they are correct they score a point; otherwise they lose a point.
• The game ends after 10 questions, at which point their score is shown.

So, if the app chose “Rock” and “Win” the player would need to choose “Paper”, but if the app chose “Rock” and “Lose” the player would need to choose “Scissors”.

• Challenge detail

• Day25 article

There are five key differences between structs and classes:

1. Classes don’t come with a memberwise initializer; structs get these by default.
2. Classes can use inheritance to build up functionality; structs cannot.
3. If you copy a class, both copies point to the same data; copies of structs are always unique.
4. Classes can have deinitializers; structs cannot.
5. You can change variable properties inside constant classes; properties inside constant structs are fixed regardless of whether the properties are constants or variables.

If you use structs most of the time, switching to a class in one particular place conveys some intent: this thing is different and needs to be used differently. If you always use classes, that distinction gets lost – after all, it’s extremely unlikely you need them that often.

Your goal is to build an “edutainment” app for kids to help them practice multiplication tables – “what is 7 x 8?” and so on. Edutainment apps are educational at their code, but ideally have enough playfulness about them to make kids want to play.

• Challenge detail

• The player needs to select which multiplication tables they want to practice. This could be pressing buttons, or it could be an “Up to…” stepper, going from 1 to 12.
• The player should be able to select how many questions they want to be asked: 5, 10, 20, or “All”.
• You should randomly generate as many questions as they asked for, within the difficulty range they asked for. For the “all” case you should generate all possible combinations.

• Day35 article

• Day47 article