1 files changed, 114 insertions, 0 deletions
diff --git a/src/mapgen/mapgen_carpathian.h b/src/mapgen/mapgen_carpathian.h
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+++ b/src/mapgen/mapgen_carpathian.h
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+/*
+Minetest
+Copyright (C) 2017-2019 vlapsley, Vaughan Lapsley <vlapsley@gmail.com>
+Copyright (C) 2017-2019 paramat
+
+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.
+*/
+
+#pragma once
+
+#include "mapgen.h"
+
+#define MGCARPATHIAN_CAVERNS 0x01
+#define MGCARPATHIAN_RIVERS  0x02
+
+class BiomeManager;
+
+extern FlagDesc flagdesc_mapgen_carpathian[];
+
+
+struct MapgenCarpathianParams : public MapgenParams
+{
+	float base_level       = 12.0f;
+	float river_width      = 0.05f;
+	float river_depth      = 24.0f;
+	float valley_width     = 0.25f;
+
+	float cave_width         = 0.09f;
+	s16 large_cave_depth     = -33;
+	u16 small_cave_num_min   = 0;
+	u16 small_cave_num_max   = 0;
+	u16 large_cave_num_min   = 0;
+	u16 large_cave_num_max   = 2;
+	float large_cave_flooded = 0.5f;
+	s16 cavern_limit         = -256;
+	s16 cavern_taper         = 256;
+	float cavern_threshold   = 0.7f;
+	s16 dungeon_ymin         = -31000;
+	s16 dungeon_ymax         = 31000;
+
+	NoiseParams np_filler_depth;
+	NoiseParams np_height1;
+	NoiseParams np_height2;
+	NoiseParams np_height3;
+	NoiseParams np_height4;
+	NoiseParams np_hills_terrain;
+	NoiseParams np_ridge_terrain;
+	NoiseParams np_step_terrain;
+	NoiseParams np_hills;
+	NoiseParams np_ridge_mnt;
+	NoiseParams np_step_mnt;
+	NoiseParams np_rivers;
+	NoiseParams np_mnt_var;
+	NoiseParams np_cave1;
+	NoiseParams np_cave2;
+	NoiseParams np_cavern;
+	NoiseParams np_dungeons;
+
+	MapgenCarpathianParams();
+	~MapgenCarpathianParams() = default;
+
+	void readParams(const Settings *settings);
+	void writeParams(Settings *settings) const;
+	void setDefaultSettings(Settings *settings);
+};
+
+class MapgenCarpathian : public MapgenBasic
+{
+public:
+	MapgenCarpathian(MapgenCarpathianParams *params, EmergeParams *emerge);
+	~MapgenCarpathian();
+
+	virtual MapgenType getType() const { return MAPGEN_CARPATHIAN; }
+
+	virtual void makeChunk(BlockMakeData *data);
+	int getSpawnLevelAtPoint(v2s16 p);
+
+private:
+	float base_level;
+	float river_width;
+	float river_depth;
+	float valley_width;
+
+	Noise *noise_height1;
+	Noise *noise_height2;
+	Noise *noise_height3;
+	Noise *noise_height4;
+	Noise *noise_hills_terrain;
+	Noise *noise_ridge_terrain;
+	Noise *noise_step_terrain;
+	Noise *noise_hills;
+	Noise *noise_ridge_mnt;
+	Noise *noise_step_mnt;
+	Noise *noise_rivers = nullptr;
+	Noise *noise_mnt_var;
+
+	s32 grad_wl;
+
+	float getSteps(float noise);
+	inline float getLerp(float noise1, float noise2, float mod);
+	int generateTerrain();
+};