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generated by cgit v1.2.3 (git 2.39.1) at 2025-01-29 06:56:20 +0000
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/*
Minetest
Copyright (C) 2010-2015 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
Copyright (C) 2010-2015 paramat, Matt Gregory

Fractal formulas from http://www.bugman123.com/Hypercomplex/index.html
by Paul Nylander, and from http://www.fractalforums.com, thank you.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser 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 MAPGEN_FRACTAL_HEADER
#define MAPGEN_FRACTAL_HEADER

#include "mapgen.h"

#define MGFRACTAL_LARGE_CAVE_DEPTH -33

class BiomeManager;

extern FlagDesc flagdesc_mapgen_fractal[];


struct MapgenFractalParams : public MapgenSpecificParams {
	u32 spflags;

	u16 fractal;
	u16 iterations;
	v3f scale;
	v3f offset;
	float slice_w;

	float julia_x;
	float julia_y;
	float julia_z;
	float julia_w;

	NoiseParams np_seabed;
	NoiseParams np_filler_depth;
	NoiseParams np_cave1;
	NoiseParams np_cave2;

	MapgenFractalParams();
	~MapgenFractalParams() {}

	void readParams(const Settings *settings);
	void writeParams(Settings *settings) const;
};

class MapgenFractal : public Mapgen {
public:
	EmergeManager *m_emerge;
	BiomeManager *bmgr;

	int ystride;
	int zstride;
	u16 formula;
	bool julia;

	v3s16 node_min;
	v3s16 node_max;
	v3s16 full_node_min;
	v3s16 full_node_max;

	u32 spflags;

	u16 fractal;
	u16 iterations;
	v3f scale;
	v3f offset;