summaryrefslogtreecommitdiff
path: root/src/mapgen_v6.h
blob: 14736e3d0fef1a43f38876af0cb97204bf379df3 (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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>

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 MAPGENV6_HEADER
#define MAPGENV6_HEADER

#include "mapgen.h"

#define AVERAGE_MUD_AMOUNT 4

enum BiomeType
{
	BT_NORMAL,
	BT_DESERT
};

extern NoiseParams nparams_v6_def_terrain_base;
extern NoiseParams nparams_v6_def_terrain_higher;
extern NoiseParams nparams_v6_def_steepness;
extern NoiseParams nparams_v6_def_height_select;
extern NoiseParams nparams_v6_def_mud;
extern NoiseParams nparams_v6_def_beach;
extern NoiseParams nparams_v6_def_biome;
extern NoiseParams nparams_v6_def_cave;
extern NoiseParams nparams_v6_def_humidity;
extern NoiseParams nparams_v6_def_trees;
extern NoiseParams nparams_v6_def_apple_trees;

struct MapgenV6Params : public MapgenParams {
	float freq_desert;
	float freq_beach;
	NoiseParams np_terrain_base;
	NoiseParams np_terrain_higher;
	NoiseParams np_steepness;
	NoiseParams np_height_select;
	NoiseParams np_mud;
	NoiseParams np_beach;
	NoiseParams np_biome;
	NoiseParams np_cave;
	NoiseParams np_humidity;
	NoiseParams np_trees;
	NoiseParams np_apple_trees;
	
	MapgenV6Params() {
		freq_desert       = 0.45;
		freq_beach        = 0.15;
		np_terrain_base   = nparams_v6_def_terrain_base;
		np_terrain_higher = nparams_v6_def_terrain_higher;
		np_steepness      = nparams_v6_def_steepness;
		np_height_select  = nparams_v6_def_height_select;
		np_mud            = nparams_v6_def_mud;
		np_beach          = nparams_v6_def_beach;
		np_biome          = nparams_v6_def_biome;
		np_cave           = nparams_v6_def_cave;
		np_humidity       = nparams_v6_def_humidity;
		np_trees          = nparams_v6_def_trees;
		np_apple_trees    = nparams_v6_def_apple_trees;
	}
	
	~MapgenV6Params() {}
	
	bool readParams(Settings *settings);
	void writeParams(Settings *settings);
};

class MapgenV6 : public Mapgen {
public:
	EmergeManager *emerge;

	int ystride;
	u32 flags;

	u32 blockseed;
	v3s16 node_min;
	v3s16 node_max;
	v3s16 full_node_min;
	v3s16 full_node_max;
	v3s16 central_area_size;
	int volume_nodes;

	Noise *noise_terrain_base;
	Noise *noise_terrain_higher;
	Noise *noise_steepness;
	Noise *noise_height_select;
	Noise *noise_mud;
	Noise *noise_beach;
	Noise *noise_biome;
	NoiseParams *np_cave;
	NoiseParams *np_humidity;
	NoiseParams *np_trees;
	NoiseParams *np_apple_trees;
	float freq_desert;
	float freq_beach;
	
	content_t c_stone;
	content_t c_dirt;
	content_t c_dirt_with_grass;
	content_t c_sand;
	content_t c_water_source;
	content_t c_lava_source;
	content_t c_gravel;
	content_t c_cobble;
	content_t c_desert_sand;
	content_t c_desert_stone;

	MapgenV6(int mapgenid, MapgenV6Params *params, EmergeManager *emerge);
	~MapgenV6();
	
	void makeChunk(BlockMakeData *data);
	int getGroundLevelAtPoint(v2s16 p);

	float baseTerrainLevel(float terrain_base, float terrain_higher,
						   float steepness, float height_select);
	virtual float baseTerrainLevelFromNoise(v2s16 p);
	virtual float baseTerrainLevelFromMap(v2s16 p);
	virtual float baseTerrainLevelFromMap(int index);

	s16 find_stone_level(v2s16 p2d);
	bool block_is_underground(u64 seed, v3s16 blockpos);
	s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
	
	float getHumidity(v2s16 p);
	float getTreeAmount(v2s16 p);
	bool getHaveAppleTree(v2s16 p);
	float getMudAmount(v2s16 p);
	virtual float getMudAmount(int index);
	bool getHaveBeach(v2s16 p);
	bool getHaveBeach(int index);
	BiomeType getBiome(v2s16 p);
	BiomeType getBiome(int index, v2s16 p);
	
	u32 get_blockseed(u64 seed, v3s16 p);
	
	virtual void calculateNoise();
	int generateGround();
	void addMud();
	void flowMud(s16 &mudflow_minpos, s16 &mudflow_maxpos);
	void addDirtGravelBlobs();
	void growGrass();
	void placeTreesAndJungleGrass();
	virtual void generateCaves(int max_stone_y);
	virtual void generateExperimental() {}
};

struct MapgenFactoryV6 : public MapgenFactory {
	Mapgen *createMapgen(int mgid, MapgenParams *params, EmergeManager *emerge) {
		return new MapgenV6(mgid, (MapgenV6Params *)params, emerge);
	};
	
	MapgenParams *createMapgenParams() {
		return new MapgenV6Params();
	};
};

#endif