Line data    Source code

       1             : /*
       2             : Minetest
       3             : Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
       4             : 
       5             : This program is free software; you can redistribute it and/or modify
       6             : it under the terms of the GNU Lesser General Public License as published by
       7             : the Free Software Foundation; either version 2.1 of the License, or
       8             : (at your option) any later version.
       9             : 
      10             : This program is distributed in the hope that it will be useful,
      11             : but WITHOUT ANY WARRANTY; without even the implied warranty of
      12             : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13             : GNU Lesser General Public License for more details.
      14             : 
      15             : You should have received a copy of the GNU Lesser General Public License along
      16             : with this program; if not, write to the Free Software Foundation, Inc.,
      17             : 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
      18             : */
      19             : 
      20             : #ifndef MG_ORE_HEADER
      21             : #define MG_ORE_HEADER
      22             : 
      23             : #include "objdef.h"
      24             : #include "noise.h"
      25             : #include "nodedef.h"
      26             : 
      27             : class Noise;
      28             : class Mapgen;
      29             : class MMVManip;
      30             : 
      31             : /////////////////// Ore generation flags
      32             : 
      33             : // Use absolute value of height to determine ore placement
      34             : #define OREFLAG_ABSHEIGHT 0x01
      35             : #define OREFLAG_USE_NOISE 0x08
      36             : 
      37             : #define ORE_RANGE_ACTUAL 1
      38             : #define ORE_RANGE_MIRROR 2
      39             : 
      40             : 
      41             : enum OreType {
      42             :         ORE_SCATTER,
      43             :         ORE_SHEET,
      44             :         ORE_BLOB,
      45             :         ORE_VEIN,
      46             : };
      47             : 
      48             : extern FlagDesc flagdesc_ore[];
      49             : 
      50             : class Ore : public ObjDef, public NodeResolver {
      51             : public:
      52             :         static const bool NEEDS_NOISE = false;
      53             : 
      54             :         content_t c_ore;                  // the node to place
      55             :         std::vector<content_t> c_wherein; // the nodes to be placed in
      56             :         u32 clust_scarcity; // ore cluster has a 1-in-clust_scarcity chance of appearing at a node
      57             :         s16 clust_num_ores; // how many ore nodes are in a chunk
      58             :         s16 clust_size;     // how large (in nodes) a chunk of ore is
      59             :         s16 y_min;
      60             :         s16 y_max;
      61             :         u8 ore_param2;          // to set node-specific attributes
      62             :         u32 flags;          // attributes for this ore
      63             :         float nthresh;      // threshhold for noise at which an ore is placed
      64             :         NoiseParams np;     // noise for distribution of clusters (NULL for uniform scattering)
      65             :         Noise *noise;
      66             :         std::set<u8> biomes;
      67             : 
      68             :         Ore();
      69             :         virtual ~Ore();
      70             : 
      71             :         virtual void resolveNodeNames();
      72             : 
      73             :         size_t placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
      74             :         virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
      75             :                 v3s16 nmin, v3s16 nmax, u8 *biomemap) = 0;
      76             : };
      77             : 
      78           0 : class OreScatter : public Ore {
      79             : public:
      80             :         static const bool NEEDS_NOISE = false;
      81             : 
      82             :         virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
      83             :                 v3s16 nmin, v3s16 nmax, u8 *biomemap);
      84             : };
      85             : 
      86           0 : class OreSheet : public Ore {
      87             : public:
      88             :         static const bool NEEDS_NOISE = true;
      89             : 
      90             :         virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
      91             :                 v3s16 nmin, v3s16 nmax, u8 *biomemap);
      92             : };
      93             : 
      94           0 : class OreBlob : public Ore {
      95             : public:
      96             :         static const bool NEEDS_NOISE = true;
      97             : 
      98             :         virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
      99             :                 v3s16 nmin, v3s16 nmax, u8 *biomemap);
     100             : };
     101             : 
     102             : class OreVein : public Ore {
     103             : public:
     104             :         static const bool NEEDS_NOISE = true;
     105             : 
     106             :         float random_factor;
     107             :         Noise *noise2;
     108             : 
     109             :         OreVein();
     110             :         virtual ~OreVein();
     111             : 
     112             :         virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
     113             :                 v3s16 nmin, v3s16 nmax, u8 *biomemap);
     114             : };
     115             : 
     116             : class OreManager : public ObjDefManager {
     117             : public:
     118             :         OreManager(IGameDef *gamedef);
     119           0 :         virtual ~OreManager() {}
     120             : 
     121           0 :         const char *getObjectTitle() const
     122             :         {
     123           0 :                 return "ore";
     124             :         }
     125             : 
     126           0 :         static Ore *create(OreType type)
     127             :         {
     128           0 :                 switch (type) {
     129             :                 case ORE_SCATTER:
     130           0 :                         return new OreScatter;
     131             :                 case ORE_SHEET:
     132           0 :                         return new OreSheet;
     133             :                 case ORE_BLOB:
     134           0 :                         return new OreBlob;
     135             :                 case ORE_VEIN:
     136           0 :                         return new OreVein;
     137             :                 default:
     138           0 :                         return NULL;
     139             :                 }
     140             :         }
     141             : 
     142             :         void clear();
     143             : 
     144             :         size_t placeAllOres(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
     145             : };
     146             : 
     147             : #endif