/**
 * RIVER FISH: the Salmon Leap at the Thaw Fall (James, 2026-10-03, W-084: "make the Capital Aquarium's Crown tanks real
 * book habitats ... River Fish first, a river fishing spot on the Thaw with two or three new fish"; plan
 * `.cursor/task-plans/2026-10-03-river-fish.md`).
 *
 * Where the sea comes in over the lip and falls into the Thaw's gorge (landmarks.ts THAW_FALLS_Z), a stair is cut down
 * the gorge's west side to a timber stage one step over the plunge pool. From the stage a fly rod (woodwork.ts: the
 * fly fishing rod, a fishing line and a fly hook, as for the Trout Fishery's trout) takes three river fish: the
 * Grayling, the Arctic Char and, rarest, the Salmon that leap the fall. They cook, and they fill the aquarium book's
 * River Fish page (aquarium.ts), whose big tank is the Capital Aquarium's (capitalAquarium.ts).
 *
 * World tiles, absolute. Backend builder: salmonLeap.ts (after the Thaw gorge is cut). Blender pieces:
 * quest-workshop/scripts/salmonleap_v00N.py (slstage, slstairrail, slsign).
 */
export declare const SALMON_LEAP_NAME = "The Salmon Leap";
export declare const RAW_GRAYLING_KIND = "rawgrayling";
export declare const COOKED_GRAYLING_KIND = "cookedgrayling";
export declare const RAW_CHAR_KIND = "rawchar";
export declare const COOKED_CHAR_KIND = "cookedchar";
export declare const RAW_SALMON_KIND = "rawsalmon";
export declare const COOKED_SALMON_KIND = "cookedsalmon";
export type RiverFish = {
    /** The raw catch's item kind. */
    kind: string;
    /** Its cooked item kind. */
    cooked: string;
    label: string;
    /** Fishing level to catch it. */
    level: number;
    /** Fishing XP per catch. */
    xp: number;
    /** Its share of the bites once you can catch it (the Salmon is the rare one). */
    weight: number;
};
/** In ladder order. Trout is 30, frost pike 35, sea bass 40: the Salmon (45) is the best catch in the game. */
export declare const RIVER_FISH: readonly RiverFish[];
/** Fishing level to fish the Salmon Leap at all (its commonest fish). */
export declare const RIVER_FISHING_LEVEL: number;
export declare function riverFish(kind: unknown): RiverFish | null;
/** The river fish a Fishing level can catch, in ladder order. */
export declare function riverFishFor(fishingLevel: number): RiverFish[];
/**
 * Which fish a bite at the Salmon Leap is, for a Fishing level and a roll in [0, 1): weighted among the fish that level
 * can catch, so a Fishing 25 angler only ever lands Grayling and a Fishing 45 one lands a Salmon about one bite in
 * seven. Null below RIVER_FISHING_LEVEL. Pure, so the server and the tests agree.
 */
export declare function pickRiverCatch(fishingLevel: number, roll: number): RiverFish | null;
/** The stage: a stone ledge one step over the plunge pool, decked in timber. */
export declare const SALMON_LEAP_STAGE: {
    readonly minX: 236;
    readonly maxX: 237;
    readonly minZ: 95;
    readonly maxZ: 101;
    readonly height: -7;
};
/**
 * The stair from the west bank down to the stage, top first: off the bank at (234, 110) onto the rim, then into the
 * gorge and north down its west side, one height step a tile, to the stage's level.
 */
export declare const SALMON_LEAP_STAIR: ReadonlyArray<{
    x: number;
    z: number;
    height: number;
}>;
/** The bank tile the stair leaves from (height 4, the gorge's west bank). */
export declare const SALMON_LEAP_HEAD: {
    readonly x: 234;
    readonly z: 110;
};
/** Where the river fish rise: three water tiles of the plunge pool beside the stage, each within a cast of its deck. */
export declare const SALMON_LEAP_SPOTS: ReadonlyArray<{
    x: number;
    z: number;
}>;
/**
 * Three timber pegs on the stage's east edge, one beside each spot (T104, COVERAGE_1_40 slice 5: the Thaw had river spots but no pegs, so Fishing 31-40
 * had none to stand at). A stand-in prop (`fishingpeg`, style = the side that faces the water), walkable, logged in upgrades.
 */
export declare const SALMON_LEAP_PEGS: ReadonlyArray<{
    x: number;
    z: number;
    style: 'e';
}>;
/** The Blender pieces (kind dreadmodel, style `<model>-<facing>`), and the sign at the head of the stair. */
export declare const SALMON_LEAP_PIECES: ReadonlyArray<{
    id: string;
    model: string;
    x: number;
    z: number;
    facing: 'n' | 'e' | 's' | 'w';
}>;
/** Every tile the Salmon Leap authors: the stair, the stage, its sign and the bank head (the gorge's passes leave these). */
export declare function onSalmonLeapSite(x: number, z: number): boolean;
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