# Script Examples
Standalone Keleusma scripts. Each file demonstrates one feature axis. Run any of them with:
````
keleusma run examples/scripts/<file>.kel
````
| [`01_arithmetic.kel`](./01_arithmetic.kel) | Primitives and operators | `Word`, `Float`, `bool`, arithmetic, comparison, casts |
| [`02_struct_field.kel`](./02_struct_field.kel) | Composite types | Struct declaration, construction, field access |
| [`03_enum_match.kel`](./03_enum_match.kel) | Pattern matching | Enum declaration, variant construction, `match` |
| [`04_for_in.kel`](./04_for_in.kel) | Bounded iteration | `for` over arrays and ranges |
| [`05_pipeline.kel`](./05_pipeline.kel) | Pipeline operator | `\|>` left-to-right composition |
| [`06_multiheaded.kel`](./06_multiheaded.kel) | Function dispatch | Pattern-matched parameter heads |
| [`07_refinement.kel`](./07_refinement.kel) | Refinement types | `newtype Name = Underlying where predicate;` with compile-time literal elision and runtime construction check |
| [`08_method_dispatch.kel`](./08_method_dispatch.kel) | Traits and impls | Receiver-style method calls |
| [`09_big_numbers.kel`](./09_big_numbers.kel) | Big-number arithmetic | Pattern-matched checked arms binding `(high, low)` halves of an `i128` intermediate |
| [`10_multbyte.kel`](./10_multbyte.kel) | Byte-typed arithmetic | Multiplication on `Byte` operands |
| [`11_signed.kel`](./11_signed.kel) | Signed compiled module | `signed` modifier on the entry function, Ed25519 signature flow through the CLI |
All scripts in this directory's top level are atomic-total (`fn main`), so they run end to end through the CLI. For yield-driven and stream-driven examples, see the Rust embedding examples under [`examples/`](../).
## Example-specific scripts
The Rust embedding examples ship their own Keleusma script rosters in subdirectories of this folder. These scripts are not meant to be run standalone through `keleusma run`; they are loaded by their respective host through `include_str!` or hot reloaded from disk.
| [`piano_roll/`](./piano_roll/) | [`examples/piano_roll.rs`](../piano_roll.rs) | Ten songs (`piano_roll_0.kel` through `piano_roll_9.kel`) for the SDL3 audio piano-roll example. See [`book/src/PIANO_ROLL.md`](../../book/src/PIANO_ROLL.md). |
| [`rogue/`](./rogue/) | [`examples/rogue/main.rs`](../rogue/main.rs) | Nineteen scripts driving the SDL3 roguelike. Game-tick loop, dungeon generator, player artificial intelligence, combat math, book-keeping, autopickup decision, movement resolution, ten monster artificial-intelligence archetypes including three `loop main` archetypes (Boss, Tracker, Hunter), two item-effect scripts. See [`book/src/ROGUE.md`](../../book/src/ROGUE.md). |