/**
 * Constraints Module
 *
 * Follows Module pattern for:
 * - Serialization support
 * - Maintainability
 * - Usability
 * - Runtime extensibility
 *
 * Core Principles Followed:
 * 1. ✅ Extends Module<ConstraintDefinition, ConstraintResolved>
 * 2. ✅ Uses {type, params} structure
 * 3. ✅ Uses registerType() for constraint checkers
 * 4. ✅ register() returns ConstraintResolved
 * 5. ✅ Calls addDefinition() for all registrations
 * 6. ✅ Built-in constraints registered in constructor
 */
import { Position, Constraint, ConstraintDefinition } from './types';
import { ECSContext } from "../../core/ecs";
import { Module } from "../Module";
export declare const DEFAULT_NORMALIZATION_SIZE = 100;
/**
 * Terrain settings resolved from dimension configuration
 */
export interface TerrainSettings {
    heightField: string;
    size: number;
    heightOffset: number;
}
/**
 * Get terrain settings from the current dimension
 * Falls back to spawnerDefaults if dimension terrain is not configured
 */
export declare function getTerrainSettings(ctx: ECSContext): TerrainSettings | undefined;
/** Sample height from field at position */
export declare function sampleHeight(ctx: ECSContext, fieldName: string | undefined, x: number, z: number, terrainSize?: number): number;
/** Calculate slope at a position by sampling height field */
export declare function calculateSlope(ctx: ECSContext, fieldName: string, x: number, z: number, sampleRadius?: number, terrainSize?: number): number;
/** Set the function to get spawner results (called by SpawnerModule) */
export declare function setSpawnerResultsGetter(getter: (name: string) => {
    positions: Position[];
} | undefined): void;
/**
 * Resolved constraint - a function that checks if a position passes the constraint
 */
export interface ConstraintResolved {
    check: (position: Position, ctx: ECSContext, heightField?: string) => boolean;
}
export declare class ConstraintsModule extends Module<ConstraintDefinition, ConstraintResolved> {
    constructor(ctx: ECSContext);
    /**
     * Check if a position passes a constraint
     */
    check(constraint: ConstraintDefinition, position: Position, ctx: ECSContext, heightField?: string): boolean;
    /**
     * Check if a position passes all constraints
     */
    passesAll(constraints: Constraint[] | ConstraintDefinition[] | undefined, position: Position, ctx: ECSContext, heightField?: string): boolean;
}
export declare const constraintsModule: (ctx: ECSContext) => ConstraintsModule;
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