Merge pull request #895 from GKnirps/implement_king

Implement King in rust

53_King/rust/Cargo.toml

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+[package]
+name = "king"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+fastrand = "^2.0.0"

53_King/rust/README.md

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+King
+====
+
+Original source downloaded [from Vintage Basic](http://www.vintage-basic.net/games.html)
+
+Conversion to [rust](https://www.rust-lang.org/).
+
+Porting Notes
+-------------
+
+### Floats
+
+The original code implicitly uses floating point numbers in many places which are explicitly cast to integers. In this port, I avoided using floats and tried to replicate the behaviour using just integers. It is possible that I missed some places where rounding a value would have made a difference. If you find such a bug, please notify me or make implement a fix yourself.
+
+### Signed Numbers
+
+I used unsigned integers for most of the program because it was easier than to check for negative values all the time. Unfortunately, that made the code a bit whacky in one or two places.
+
+Since I only allow input of positive numbers, it is not possible to exit the game when entering the stats to resume a game, which would be possible by entering negative numbers in the original game.
+
+### Bugs
+
+I tried to fix all bugs listed in the [main README for King](../README.md). I have tested this implementation a bit but not extensively, so there may be some portation bugs. If you find them, you are free to fix them.
+
+Future Development
+------------------
+
+I plan to add some tests and tidy up the code a bit, but this version should be feature-complete.