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/*
Minetest-c55
Copyright (C) 2010-2011 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"
/////////////////// Mapgen flags
#define MG_TREES 0x01
#define MG_CAVES 0x02
#define MG_DUNGEONS 0x04
#define MGV6_FORESTS 0x08
#define MGV6_BIOME_BLEND 0x10
#define AVERAGE_MUD_AMOUNT 4
class BiomeDefManager;
class Biome;
//struct BlockMakeData;
class MapBlock;
class ManualMapVoxelManipulator;
class VoxelManipulator;
class INodeDefManager;
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_trees;
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_v7_def_terrain;
extern NoiseParams nparams_v7_def_bgroup;
extern NoiseParams nparams_v7_def_heat;
extern NoiseParams nparams_v7_def_humidity;
enum BiomeType
{
BT_NORMAL,
BT_DESERT
};
struct BlockMakeData {
bool no_op;
ManualMapVoxelManipulator *vmanip;
u64 seed;
v3s16 blockpos_min;
v3s16 blockpos_max;
v3s16 blockpos_requested;
UniqueQueue<v3s16> transforming_liquid;
INodeDefManager *nodedef;
BlockMakeData();
~BlockMakeData();
};
struct MapgenParams {
int mg_version;
int chunksize;
u64 seed;
int water_level;
u32 flags;
MapgenParams() {
mg_version = 6;
seed = 0;
water_level = 1;
chunksize = 5;
flags = MG_TREES | MG_CAVES | MGV6_BIOME_BLEND;
}
static MapgenParams *createMapgenParams(int mgver);
static MapgenParams *getParamsFromSettings(Settings *settings);
};
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_trees;
NoiseParams *np_mud;
NoiseParams *np_beach;
NoiseParams *np_biome;
NoiseParams *np_cave;
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_trees = &nparams_v6_def_trees;
np_mud = &nparams_v6_def_mud;
np_beach = &nparams_v6_def_beach;
np_biome = &nparams_v6_def_biome;
np_cave = &nparams_v6_def_cave;
}
};
class Mapgen {
public:
int seed;
int water_level;
bool generating;
int id;
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);
};
class MapgenV6 : public Mapgen {
public:
//ManualMapVoxelManipulator &vmanip;
int ystride;
v3s16 csize;
v3s16 node_min;
v3s16 node_max;
Noise *noise_terrain_base;
Noise *noise_terrain_higher;
Noise *noise_steepness;
Noise *noise_height_select;
Noise *noise_trees;
Noise *noise_mud;
Noise *noise_beach;
Noise *noise_biome;
float *map_terrain_base;
float *map_terrain_higher;
float *map_steepness;
float *map_height_select;
float *map_trees;
float *map_mud;
float *map_beach;
float *map_biome;
NoiseParams *np_cave;
u32 flags;
float freq_desert;
float freq_beach;
MapgenV6(int mapgenid, MapgenV6Params *params);
~MapgenV6();
void makeChunk(BlockMakeData *data);
int getGroundLevelAtPoint(v2s16 p);
double baseRockLevelFromNoise(v2s16 p);
static s16 find_ground_level(VoxelManipulator &vmanip, v2s16 p2d, INodeDefManager *ndef);
static s16 find_stone_level(VoxelManipulator &vmanip, v2s16 p2d, INodeDefManager *ndef);
void make_tree(ManualMapVoxelManipulator &vmanip, v3s16 p0, bool is_apple_tree, INodeDefManager *ndef);
double tree_amount_2d(u64 seed, v2s16 p);
bool block_is_underground(u64 seed, v3s16 blockpos);
double base_rock_level_2d(u64 seed, v2s16 p);
s16 find_ground_level_from_noise(u64 seed, v2s16 p2d, s16 precision);
double get_mud_add_amount(u64 seed, v2s16 p);
bool get_have_beach(u64 seed, v2s16 p2d);
BiomeType get_biome(u64 seed, v2s16 p2d);
u32 get_blockseed(u64 seed, v3s16 p);
};
class EmergeManager {
public:
//settings
MapgenParams *params;
//mapgen objects here
Mapgen *mapgen;
//biome manager
BiomeDefManager *biomedef;
EmergeManager(IGameDef *gamedef, BiomeDefManager *bdef, MapgenParams *mgparams);
~EmergeManager();
Mapgen *getMapgen();
void addBlockToQueue();
//mapgen helper methods
Biome *getBiomeAtPoint(v3s16 p);
int getGroundLevelAtPoint(v2s16 p);
bool isBlockUnderground(v3s16 blockpos);
u32 getBlockSeed(v3s16 p);
};
#endif
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