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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 "mapnode.h"
class NoiseParams;
class Noise;
class Mapgen;
class ManualMapVoxelManipulator;
/////////////////// 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
#define ORE_RANGE_ACTUAL 1
#define ORE_RANGE_MIRROR 2
extern FlagDesc flagdesc_ore[];
enum OreType {
ORE_SCATTER,
ORE_SHEET,
ORE_CLAYLIKE
};
class Ore {
public:
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 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() {
c_ore = CONTENT_IGNORE;
np = NULL;
noise = NULL;
}
virtual ~Ore();
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 {
~OreScatter() {}
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax);
};
class OreSheet : public Ore {
~OreSheet() {}
virtual void generate(ManualMapVoxelManipulator *vm, int seed,
u32 blockseed, v3s16 nmin, v3s16 nmax);
};
Ore *createOre(OreType type);
#endif
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