/**
 * Tree Placement Resolver
 *
 * Handles grid-based tree placement with collision detection,
 * cross-layer separation, and compositional hero anchors.
 */
import type { PlacementConfig, PlacementConstants, PlacedTree } from "../../domain/models/tree-silhouette-models.js";
export interface ITreePlacementResolver {
    /** Get placement constants derived from current config */
    getPlacementConstants(): PlacementConstants;
    /** Get the current placement config */
    getPlacementConfig(): PlacementConfig;
    /** Update placement configuration */
    setPlacementConfig(config: Partial<PlacementConfig>): void;
    /** Reset placement config to defaults */
    resetPlacementConfig(): void;
    /** Get x position for a grid column with jitter */
    getColumnX(column: number, canvasWidth: number): number;
    /** Get minimum spacing for a layer (near trees need more room) */
    getMinSpacing(layer: number, canvasWidth: number): number;
    /** Check if a position would collide with already-placed trees */
    hasCollision(x: number, layer: number, placedTrees: PlacedTree[], canvasWidth: number): boolean;
    /** Find a valid position by nudging from ideal, returns null if none found */
    findValidPosition(idealX: number, layer: number, placedTrees: PlacedTree[], canvasWidth: number): number | null;
    /** Find nearest hero anchor to a position (if within snap distance) */
    getNearestHeroAnchor(x: number, canvasWidth: number, usedAnchors: Set<number>): number | null;
    /** Reset the seeded random generator */
    resetSeed(): void;
}
export declare function createTreePlacementResolver(layerCount?: number): ITreePlacementResolver;
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