aboutsummaryrefslogtreecommitdiff
path: root/src/mapgen/mapgen_valleys.h
blob: be97f07638861051c8f15ce4c3dcf4333f3c3228 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
/*
Minetest
Copyright (C) 2016-2019 Duane Robertson <duane@duanerobertson.com>
Copyright (C) 2016-2019 paramat

Based on Valleys Mapgen by Gael de Sailly
(https://forum.minetest.net/viewtopic.php?f=9&t=11430)
and mapgen_v7, mapgen_flat 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"

#define MGVALLEYS_ALT_CHILL        0x01
#define MGVALLEYS_HUMID_RIVERS     0x02
#define MGVALLEYS_VARY_RIVER_DEPTH 0x04
#define MGVALLEYS_ALT_DRY          0x08

class BiomeManager;
class BiomeGenOriginal;

extern FlagDesc flagdesc_mapgen_valleys[];


struct MapgenValleysParams : public MapgenParams {
	u32 spflags = MGVALLEYS_ALT_CHILL | MGVALLEYS_HUMID_RIVERS |
		MGVALLEYS_VARY_RIVER_DEPTH | MGVALLEYS_ALT_DRY;
	u16 altitude_chill = 90;
	u16 river_depth = 4;
	u16 river_size = 5;

	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 = 192;
	float cavern_threshold = 0.6f;
	s16 dungeon_ymin = -31000;
	s16 dungeon_ymax = 63;

	NoiseParams np_filler_depth;
	NoiseParams np_inter_valley_fill;
	NoiseParams np_inter_valley_slope;
	NoiseParams np_rivers;
	NoiseParams np_terrain_height;
	NoiseParams np_valley_depth;
	NoiseParams np_valley_profile;

	NoiseParams np_cave1;
	NoiseParams np_cave2;
	NoiseParams np_cavern;
	NoiseParams np_dungeons;

	MapgenValleysParams();
	~MapgenValleysParams() = default;

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


class MapgenValleys : public MapgenBasic {
public:

	MapgenValleys(MapgenValleysParams *params,
		EmergeManager *emerge);
	~MapgenValleys();

	virtual MapgenType getType() const { return MAPGEN_VALLEYS; }

	virtual void makeChunk(BlockMakeData *data);
	int getSpawnLevelAtPoint(v2s16 p);

private:
	BiomeGenOriginal *m_bgen;

	float altitude_chill;
	float river_depth_bed;
	float river_size_factor;

	Noise *noise_inter_valley_fill;
	Noise *noise_inter_valley_slope;
	Noise *noise_rivers;
	Noise *noise_terrain_height;
	Noise *noise_valley_depth;
	Noise *noise_valley_profile;

	virtual int generateTerrain();
};