kiln/kiln-core/src/scripts/key.rhai

// Built-in script for the `gem` archetype (see kiln-core/src/builtin_scripts.rs).
//
// A gem is a grabbable collectible: walking onto it (or pushing it into the
// player) fires this `grab()` hook instead of blocking. We bump the player's gem
// count and remove ourselves from the board.
fn grab(me) {
    let colors = [
        "red",
        "orange",
        "yellow",
        "green",
        "blue",
        "cyan",
        "purple",
        "white"
    ];

    for c in colors {
        if me.has_tag(`BUILTIN_key_${c}`) {
            set_key(c, true);
        }
    }

    die();
}