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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 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
/////////////////// Ore generation flags
// Use absolute value of height to determine ore placement
#define OREFLAG_ABSHEIGHT 0x01
// Use 3d noise to get density of ore placement, instead of just the position
#define OREFLAG_DENSITY 0x02 // not yet implemented
// For claylike ore types, place ore if the number of surrounding
// nodes isn't the specified node
#define OREFLAG_NODEISNT 0x04 // not yet implemented
extern FlagDesc flagdesc_mapgen[];
extern FlagDesc flagdesc_ore[];
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
};
#define ORE_RANGE_ACTUAL 1
#define ORE_RANGE_MIRROR 2
class Ore {
public:
std::string ore_name;
std::string wherein_name;
content_t ore;
content_t wherein; // the node to be replaced
u32 clust_scarcity; // ore cluster has a 1-in-clust_scarcity chance of appearing at a node
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;
u8 ore_param2; // to set node-specific attributes
u32 flags; // attributes for this ore
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);
void placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax) = 0;
};
class OreScatter : public Ore {
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax);
};
class OreSheet : public Ore {
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax);
};
Ore *createOre(OreType type);
#endif
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