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/*
Minetest
Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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 MG_ORE_HEADER
#define MG_ORE_HEADER
#include "util/string.h"
#include "mapgen.h"
struct NoiseParams;
class Noise;
class Mapgen;
class MMVManip;
/////////////////// Ore generation flags
// Use absolute value of height to determine ore placement
#define OREFLAG_ABSHEIGHT 0x01
#define OREFLAG_USE_NOISE 0x08
#define ORE_RANGE_ACTUAL 1
#define ORE_RANGE_MIRROR 2
enum OreType {
ORE_TYPE_SCATTER,
ORE_TYPE_SHEET,
ORE_TYPE_BLOB,
ORE_TYPE_VEIN,
};
extern FlagDesc flagdesc_ore[];
class Ore : public GenElement, public NodeResolver {
public:
static const bool NEEDS_NOISE = false;
content_t c_ore; // the node to place
std::vector<content_t> c_wherein; // the nodes to be placed in
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 y_min;
s16 y_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();
virtual ~Ore();
virtual void resolveNodeNames(NodeResolveInfo *nri);
size_t placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
v3s16 nmin, v3s16 nmax) = 0;
};
class OreScatter : public Ore {
public:
static const bool NEEDS_NOISE = false;
virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
v3s16 nmin, v3s16 nmax);
};
class OreSheet : public Ore {
public:
static const bool NEEDS_NOISE = true;
virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
v3s16 nmin, v3s16 nmax);
};
class OreBlob : public Ore {
public:
static const bool NEEDS_NOISE = true;
virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
v3s16 nmin, v3s16 nmax);
};
class OreVein : public Ore {
public:
static const bool NEEDS_NOISE = true;
float random_factor;
Noise *noise2;
OreVein();
virtual ~OreVein();
virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
v3s16 nmin, v3s16 nmax);
};
class OreManager : public GenElementManager {
public:
static const char *ELEMENT_TITLE;
static const size_t ELEMENT_LIMIT = 0x10000;
OreManager(IGameDef *gamedef);
~OreManager() {}
Ore *create(int type)
{
switch (type) {
case ORE_TYPE_SCATTER:
return new OreScatter;
case ORE_TYPE_SHEET:
return new OreSheet;
case ORE_TYPE_BLOB:
return new OreBlob;
case ORE_TYPE_VEIN:
return new OreVein;
default:
return NULL;
}
}
void clear();
size_t placeAllOres(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
};
#endif
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