Move files to subdirectories (#6599)

* Move files around

1 files changed, 134 insertions, 0 deletions

diff --git a/src/mapgen/mapgen_valleys.h b/src/mapgen/mapgen_valleys.h
new file mode 100644
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+++ b/src/mapgen/mapgen_valleys.h
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+/*
+Minetest Valleys C
+Copyright (C) 2016-2017 Duane Robertson <duane@duanerobertson.com>
+Copyright (C) 2016-2017 paramat
+
+Based on Valleys Mapgen by Gael de Sailly
+ (https://forum.minetest.net/viewtopic.php?f=9&t=11430)
+and mapgen_v7 by kwolekr and paramat.
+
+Licensing changed by permission of Gael de Sailly.
+
+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"
+
+////////////// Mapgen Valleys flags
+#define MGVALLEYS_ALT_CHILL    0x01
+#define MGVALLEYS_HUMID_RIVERS 0x02
+
+// Feed only one variable into these.
+#define MYSQUARE(x) (x) * (x)
+#define MYCUBE(x) (x) * (x) * (x)
+
+class BiomeManager;
+class BiomeGenOriginal;
+
+// Global profiler
+//class Profiler;
+//extern Profiler *mapgen_profiler;
+
+
+struct MapgenValleysParams : public MapgenParams {
+	u32 spflags = MGVALLEYS_HUMID_RIVERS | MGVALLEYS_ALT_CHILL;
+	s16 large_cave_depth = -33;
+	s16 massive_cave_depth = -256; // highest altitude of massive caves
+	u16 altitude_chill = 90; // The altitude at which temperature drops by 20C.
+	u16 lava_features = 0; // How often water will occur in caves.
+	u16 river_depth = 4; // How deep to carve river channels.
+	u16 river_size = 5; // How wide to make rivers.
+	u16 water_features = 0; // How often water will occur in caves.
+	float cave_width = 0.09f;
+	NoiseParams np_cave1;
+	NoiseParams np_cave2;
+	NoiseParams np_filler_depth;
+	NoiseParams np_inter_valley_fill;
+	NoiseParams np_inter_valley_slope;
+	NoiseParams np_rivers;
+	NoiseParams np_massive_caves;
+	NoiseParams np_terrain_height;
+	NoiseParams np_valley_depth;
+	NoiseParams np_valley_profile;
+
+	MapgenValleysParams();
+	~MapgenValleysParams() = default;
+
+	void readParams(const Settings *settings);
+	void writeParams(Settings *settings) const;
+};
+
+struct TerrainNoise {
+	s16 x;
+	s16 z;
+	float terrain_height;
+	float *rivers;
+	float *valley;
+	float valley_profile;
+	float *slope;
+	float inter_valley_fill;
+};
+
+class MapgenValleys : public MapgenBasic {
+public:
+
+	MapgenValleys(int mapgenid, MapgenValleysParams *params, EmergeManager *emerge);
+	~MapgenValleys();
+
+	virtual MapgenType getType() const { return MAPGEN_VALLEYS; }
+
+	virtual void makeChunk(BlockMakeData *data);
+	int getSpawnLevelAtPoint(v2s16 p);
+
+	s16 large_cave_depth;
+
+private:
+	BiomeGenOriginal *m_bgen;
+
+	bool humid_rivers;
+	bool use_altitude_chill;
+	float humidity_adjust;
+	s16 cave_water_max_height;
+	s16 lava_max_height;
+
+	float altitude_chill;
+	s16 lava_features_lim;
+	s16 massive_cave_depth;
+	float river_depth_bed;
+	float river_size_factor;
+	float *tcave_cache;
+	s16 water_features_lim;
+	Noise *noise_inter_valley_fill;
+	Noise *noise_inter_valley_slope;
+	Noise *noise_rivers;
+	Noise *noise_cave1;
+	Noise *noise_cave2;
+	Noise *noise_massive_caves;
+	Noise *noise_terrain_height;
+	Noise *noise_valley_depth;
+	Noise *noise_valley_profile;
+
+	float terrainLevelAtPoint(s16 x, s16 z);
+
+	void calculateNoise();
+
+	virtual int generateTerrain();
+	float terrainLevelFromNoise(TerrainNoise *tn);
+	float adjustedTerrainLevelFromNoise(TerrainNoise *tn);
+
+	virtual void generateCaves(s16 max_stone_y, s16 large_cave_depth);
+};