// Generic food: nutrition and healing come from the item's `props` in items.rsn.
pub fn eat(ctx) {
    if ctx.nutrition() >= 100 {
        ctx.message("You are too full to eat.");
        return false;
    }
    ctx.feed(ctx.item_prop("nutrition"));
    let heal = ctx.item_prop("heal");
    if heal > 0 {
        ctx.heal(heal);
    }
    ctx.message("Delicious.");
}

pub fn sandwich_crafted(ctx) {
    if ctx.skill_level("cooking") >= 3 && ctx.random(4) == 0 {
        ctx.give_item("sandwich", 1);
        ctx.message("Your cooking experience pays off: you made an extra sandwich!");
    }
}