mirror of https://github.com/minetest/minetest.git
136 lines
3.6 KiB
C++
136 lines
3.6 KiB
C++
/*
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Minetest
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Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MG_ORE_HEADER
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#define MG_ORE_HEADER
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#include "util/string.h"
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#include "mapgen.h"
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struct NoiseParams;
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class Noise;
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class Mapgen;
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class ManualMapVoxelManipulator;
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/////////////////// Ore generation flags
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// Use absolute value of height to determine ore placement
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#define OREFLAG_ABSHEIGHT 0x01
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// Use 3d noise to get density of ore placement, instead of just the position
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#define OREFLAG_DENSITY 0x02 // not yet implemented
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// For claylike ore types, place ore if the number of surrounding
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// nodes isn't the specified node
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#define OREFLAG_NODEISNT 0x04 // not yet implemented
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#define OREFLAG_USE_NOISE 0x08
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#define ORE_RANGE_ACTUAL 1
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#define ORE_RANGE_MIRROR 2
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enum OreType {
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ORE_TYPE_SCATTER,
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ORE_TYPE_SHEET,
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ORE_TYPE_BLOB,
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};
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extern FlagDesc flagdesc_ore[];
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class Ore : public GenElement, public NodeResolver {
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public:
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static const bool NEEDS_NOISE = false;
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content_t c_ore; // the node to place
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std::vector<content_t> c_wherein; // the nodes to be placed in
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u32 clust_scarcity; // ore cluster has a 1-in-clust_scarcity chance of appearing at a node
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s16 clust_num_ores; // how many ore nodes are in a chunk
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s16 clust_size; // how large (in nodes) a chunk of ore is
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s16 height_min;
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s16 height_max;
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u8 ore_param2; // to set node-specific attributes
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u32 flags; // attributes for this ore
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float nthresh; // threshhold for noise at which an ore is placed
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NoiseParams np; // noise for distribution of clusters (NULL for uniform scattering)
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Noise *noise;
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Ore();
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virtual ~Ore();
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virtual void resolveNodeNames(NodeResolveInfo *nri);
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size_t placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
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virtual void generate(ManualMapVoxelManipulator *vm, int seed,
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u32 blockseed, v3s16 nmin, v3s16 nmax) = 0;
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};
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class OreScatter : public Ore {
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public:
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static const bool NEEDS_NOISE = false;
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virtual void generate(ManualMapVoxelManipulator *vm, int seed,
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u32 blockseed, v3s16 nmin, v3s16 nmax);
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};
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class OreSheet : public Ore {
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public:
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static const bool NEEDS_NOISE = true;
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virtual void generate(ManualMapVoxelManipulator *vm, int seed,
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u32 blockseed, v3s16 nmin, v3s16 nmax);
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};
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class OreBlob : public Ore {
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public:
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static const bool NEEDS_NOISE = true;
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virtual void generate(ManualMapVoxelManipulator *vm, int seed,
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u32 blockseed, v3s16 nmin, v3s16 nmax);
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};
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class OreManager : public GenElementManager {
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public:
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static const char *ELEMENT_TITLE;
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static const size_t ELEMENT_LIMIT = 0x10000;
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OreManager(IGameDef *gamedef);
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~OreManager() {}
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Ore *create(int type)
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{
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switch (type) {
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case ORE_TYPE_SCATTER:
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return new OreScatter;
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case ORE_TYPE_SHEET:
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return new OreSheet;
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case ORE_TYPE_BLOB:
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return new OreBlob;
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default:
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return NULL;
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}
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}
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void clear();
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size_t placeAllOres(Mapgen *mg, u32 seed, v3s16 nmin, v3s16 nmax);
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};
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#endif
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