Bug Demo first

[temi-ro]

Hello! What's your name? tem
1: Green, like Nature
2: Yellow, like a Sunflower
3: Blue, like the Sky
hello, tem. What's your favourite colour? 4
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index: 3, Size: 3
at java.util.ArrayList.rangeCheck(ArrayList.java:657)
at java.util.ArrayList.get(ArrayList.java:433)
at study.learn.storeys.engine.prompters.SimplePrompter.await(SimplePrompter.java:64)
at study.learn.storeys.engine.prompters.SimplePrompter.await(SimplePrompter.java:77)
at study.learn.storeys.engine.demo.Demo.interact(Demo.java:30)
at study.learn.storeys.engine.demo.Menu.lambda$interact$0(Menu.java:38)
at study.learn.storeys.engine.prompters.SimplePrompter.await(SimplePrompter.java:77)
at study.learn.storeys.engine.demo.Menu.interact(Menu.java:36)
at study.learn.storeys.engine.Main.main(Main.java:32)

[edewit]

@temir20 what's missing here is a check to see if the given value is valid (e.g. the number must be between 0 ( zero is a number ) and the length of the options - 1 ( because we start at zero )

Add a check here: https://github.com/vorburger/minecraft-storeys-maker/blob/master/engine/src/main/java/study/learn/storeys/engine/prompters/SimplePrompter.java#L64

Even better would be that all answers have a validate method so that we can tell the user that that option is not valid