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/*
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"
#include "noise.h"
#define AVERAGE_MUD_AMOUNT 4
#define DESERT_STONE_BASE -32
#define ICE_BASE 0
#define FREQ_HOT 0.4
#define FREQ_SNOW -0.4
#define FREQ_TAIGA 0.5
#define FREQ_JUNGLE 0.5
//////////// Mapgen V6 flags
#define MGV6_JUNGLES 0x01
#define MGV6_BIOMEBLEND 0x02
#define MGV6_MUDFLOW 0x04
#define MGV6_SNOWBIOMES 0x08
extern FlagDesc flagdesc_mapgen_v6[];
enum BiomeV6Type
{
BT_NORMAL,
BT_DESERT,
BT_JUNGLE,
BT_TUNDRA,
BT_TAIGA,
};
struct MapgenV6Params : public MapgenSpecificParams {
u32 spflags;
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();
~MapgenV6Params() {}
void readParams(const Settings *settings);
void writeParams(Settings *settings) const;
};
class MapgenV6 : public Mapgen {
public:
EmergeManager *m_emerge;
int ystride;
u32 spflags;
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;
Noise *noise_humidity;
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_desert_stone;
content_t c_desert_sand;
content_t c_dirt_with_snow;
content_t c_snow;
content_t c_snowblock;
content_t c_ice;
content_t c_cobble;
content_t c_mossycobble;
content_t c_stair_cobble;
MapgenV6(int mapgenid, MapgenParams *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);
BiomeV6Type getBiome(v2s16 p);
BiomeV6Type 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 growGrass();
void placeTreesAndJungleGrass();
virtual void generateCaves(int max_stone_y);
};
struct MapgenFactoryV6 : public MapgenFactory {
Mapgen *createMapgen(int mgid, MapgenParams *params, EmergeManager *emerge)
{
return new MapgenV6(mgid, params, emerge);
};
MapgenSpecificParams *createMapgenParams()
{
return new MapgenV6Params();
};
};
#endif
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