summaryrefslogtreecommitdiff
path: root/src/mapgen.h
blob: a900985da5bfbb44586e646d747d0e1a1bc2ffce (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
/*
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 MAPGEN_HEADER
#define MAPGEN_HEADER

#include "irrlichttypes_extrabloated.h"
#include "util/container.h" // UniqueQueue
#include "gamedef.h"
#include "mapnode.h"
#include "noise.h"
#include "settings.h"
#include <map>

/////////////////// Mapgen flags
#define MG_TREES         0x01
#define MG_CAVES         0x02
#define MG_DUNGEONS      0x04
#define MGV6_JUNGLES     0x08
#define MGV6_BIOME_BLEND 0x10
#define MG_FLAT          0x20

extern FlagDesc flagdesc_mapgen[];

class BiomeDefManager;
class Biome;
class EmergeManager;
class MapBlock;
class ManualMapVoxelManipulator;
class VoxelManipulator;
class INodeDefManager;
struct BlockMakeData;
class VoxelArea;

struct MapgenParams {
	std::string mg_name;
	int chunksize;
	u64 seed;
	int water_level;
	u32 flags;

	MapgenParams() {
		mg_name     = "v6";
		seed        = 0;
		water_level = 1;
		chunksize   = 5;
		flags       = MG_TREES | MG_CAVES | MGV6_BIOME_BLEND;
	}
	
	virtual bool readParams(Settings *settings) = 0;
	virtual void writeParams(Settings *settings) {};
};

class Mapgen {
public:
	int seed;
	int water_level;
	bool generating;
	int id;
	ManualMapVoxelManipulator *vm;
	INodeDefManager *ndef;

	void updateLiquid(UniqueQueue<v3s16> *trans_liquid, v3s16 nmin, v3s16 nmax);
	void setLighting(v3s16 nmin, v3s16 nmax, u8 light);
	void lightSpread(VoxelArea &a, v3s16 p, u8 light);
	void calcLighting(v3s16 nmin, v3s16 nmax);
	void calcLightingOld(v3s16 nmin, v3s16 nmax);

	virtual void makeChunk(BlockMakeData *data) {};
	virtual int getGroundLevelAtPoint(v2s16 p) = 0;

	//Legacy functions for Farmesh (pending removal)
	static bool get_have_beach(u64 seed, v2s16 p2d);
	static double tree_amount_2d(u64 seed, v2s16 p);
	static s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
};

struct MapgenFactory {
	virtual Mapgen *createMapgen(int mgid, MapgenParams *params,
								 EmergeManager *emerge) = 0;
	virtual MapgenParams *createMapgenParams() = 0;
};

enum OreType {
	ORE_SCATTER,
	ORE_SHEET,
	ORE_CLAYLIKE
};

class Ore {
public:
	std::string ore_name;
	std::string wherein_name;

	content_t ore;
	content_t wherein;  // the node to be replaced
	s16 clust_scarcity; //
	s16 clust_num_ores; // how many ore nodes are in a chunk
	s16 clust_size;     // how large (in nodes) a chunk of ore is
	s16 height_min;
	s16 height_max;
	float nthresh;      // threshhold for noise at which an ore is placed 
	NoiseParams *np;    // noise for distribution of clusters (NULL for uniform scattering)
	Noise *noise;
	
	Ore() {
		ore     = CONTENT_IGNORE;
		wherein = CONTENT_IGNORE;
		np      = NULL;
		noise   = NULL;
	}
	
	void resolveNodeNames(INodeDefManager *ndef);
	virtual void generate(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) = 0;
};

class OreScatter : public Ore {
	 void generate(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
};

class OreSheet : public Ore {
	void generate(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
};

Ore *createOre(OreType type);

#endif