////////////////////////////////////////////////////////////////////////////////
//    Scorched3D (c) 2000-2011, 2026
//
//    This file is part of Scorched3D.
//
//    Scorched3D is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    Scorched3D is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License along
//    with this program; if not, write to the Free Software Foundation, Inc.,
//    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
////////////////////////////////////////////////////////////////////////////////

#ifndef __INCLUDE_HeightMapModifier_hpp_INCLUDE__
#define __INCLUDE_HeightMapModifier_hpp_INCLUDE__

#include <common/RandomGenerator.hpp>
#include <common/FixedVector.hpp>
#include <landscapemap/HeightMap.hpp>

class LandscapeDefnHeightMapGenerate;

namespace HeightMapModifier
{
	void levelSurround( HeightMap& hmap );
	void noise(
		HeightMap&                      hmap,
		LandscapeDefnHeightMapGenerate& defn,
		RandomGenerator&                generator,
		ProgressCounter*                counter = nullptr
	);
	void edgeEnhance(
		HeightMap&                      hmap,
		LandscapeDefnHeightMapGenerate& defn,
		RandomGenerator&                generator,
		ProgressCounter*                counter = nullptr
	);
	void waterErrosion(
		HeightMap&                      hmap,
		LandscapeDefnHeightMapGenerate& defn,
		RandomGenerator&                generator,
		ProgressCounter*                counter = nullptr
	);
	void smooth( HeightMap& hmap, LandscapeDefnHeightMapGenerate& defn, ProgressCounter* counter = nullptr );
	void scale(
		HeightMap&                      hmap,
		LandscapeDefnHeightMapGenerate& defn,
		RandomGenerator&                generator,
		ProgressCounter*                counter = nullptr
	);

	void generateTerrain(
		HeightMap&                      hmap,
		LandscapeDefnHeightMapGenerate& defn,
		RandomGenerator&                generator,
		RandomGenerator&                offsetGenerator,
		ProgressCounter*                counter = nullptr
	);
	void addCirclePeak(
		HeightMap&       hmap,
		FixedVector&     start,
		fixed            sizew,
		fixed            sizew2,
		fixed            sizeh,
		RandomGenerator& generator
	);
};  // namespace HeightMapModifier

#endif  // __INCLUDE_HeightMapModifier_hpp_INCLUDE__
