]> git.lizzy.rs Git - minetest.git/blobdiff - src/mapgen.cpp
Remove no virtual dtor warnings, make MapgenParams contain actual NoiseParams
[minetest.git] / src / mapgen.cpp
index 15686317040674f5faecc45fb096b793bfa21501..835c14be13cd196a1200ef8144e6a81afea4c6e1 100644 (file)
@@ -34,38 +34,188 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "main.h" // For g_profiler
 #include "treegen.h"
 #include "mapgen_v6.h"
+#include "mapgen_v7.h"
 
 FlagDesc flagdesc_mapgen[] = {
        {"trees",          MG_TREES},
        {"caves",          MG_CAVES},
        {"dungeons",       MG_DUNGEONS},
-       {"v6_forests",     MGV6_FORESTS},
+       {"v6_jungles",     MGV6_JUNGLES},
        {"v6_biome_blend", MGV6_BIOME_BLEND},
        {"flat",           MG_FLAT},
-       {NULL,                     0}
+       {NULL,             0}
+};
+
+FlagDesc flagdesc_ore[] = {
+       {"absheight",            OREFLAG_ABSHEIGHT},
+       {"scatter_noisedensity", OREFLAG_DENSITY},
+       {"claylike_nodeisnt",    OREFLAG_NODEISNT},
+       {NULL,                   0}
 };
 
 
 ///////////////////////////////////////////////////////////////////////////////
 
 
+Ore *createOre(OreType type) {
+       switch (type) {
+               case ORE_SCATTER:
+                       return new OreScatter;
+               case ORE_SHEET:
+                       return new OreSheet;
+               //case ORE_CLAYLIKE: //TODO: implement this!
+               //      return new OreClaylike;
+               default:
+                       return NULL;
+       }
+}
+
+
+Ore::~Ore() {
+       delete np;
+       delete noise;
+}
+
+
+void Ore::resolveNodeNames(INodeDefManager *ndef) {
+       if (ore == CONTENT_IGNORE) {
+               ore = ndef->getId(ore_name);
+               if (ore == CONTENT_IGNORE) {
+                       errorstream << "Ore::resolveNodeNames: ore node '"
+                               << ore_name << "' not defined";
+                       ore     = CONTENT_AIR;
+                       wherein = CONTENT_AIR;
+               }
+       }
+       
+       if (wherein == CONTENT_IGNORE) {
+               wherein = ndef->getId(wherein_name);
+               if (wherein == CONTENT_IGNORE) {
+                       errorstream << "Ore::resolveNodeNames: wherein node '"
+                               << wherein_name << "' not defined";
+                       ore     = CONTENT_AIR;
+                       wherein = CONTENT_AIR;
+               }
+       }
+}
+
+
+void Ore::placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax) {
+       int in_range = 0;
+
+       in_range |= (nmin.Y <= height_max && nmax.Y >= height_min);
+       if (flags & OREFLAG_ABSHEIGHT)
+               in_range |= (nmin.Y >= -height_max && nmax.Y <= -height_min) << 1;
+       if (!in_range)
+               return;
+
+       resolveNodeNames(mg->ndef);
+       
+       int ymin, ymax;
+       
+       if (in_range & ORE_RANGE_MIRROR) {
+               ymin = MYMAX(nmin.Y, -height_max);
+               ymax = MYMIN(nmax.Y, -height_min);
+       } else {
+               ymin = MYMAX(nmin.Y, height_min);
+               ymax = MYMIN(nmax.Y, height_max);
+       }
+       if (clust_size >= ymax - ymin + 1)
+               return;
+       
+       nmin.Y = ymin;
+       nmax.Y = ymax;
+       generate(mg->vm, mg->seed, blockseed, nmin, nmax);
+}
+
+
+void OreScatter::generate(ManualMapVoxelManipulator *vm, int seed,
+                                               u32 blockseed, v3s16 nmin, v3s16 nmax) {
+       PseudoRandom pr(blockseed);
+       MapNode n_ore(ore, 0, ore_param2);
+
+       int volume = (nmax.X - nmin.X + 1) *
+                                (nmax.Y - nmin.Y + 1) *
+                                (nmax.Z - nmin.Z + 1);
+       int csize     = clust_size;
+       int orechance = (csize * csize * csize) / clust_num_ores;
+       int nclusters = volume / clust_scarcity;
+
+       for (int i = 0; i != nclusters; i++) {
+               int x0 = pr.range(nmin.X, nmax.X - csize + 1);
+               int y0 = pr.range(nmin.Y, nmax.Y - csize + 1);
+               int z0 = pr.range(nmin.Z, nmax.Z - csize + 1);
+               
+               if (np && (NoisePerlin3D(np, x0, y0, z0, seed) < nthresh))
+                       continue;
+               
+               for (int z1 = 0; z1 != csize; z1++)
+               for (int y1 = 0; y1 != csize; y1++)
+               for (int x1 = 0; x1 != csize; x1++) {
+                       if (pr.range(1, orechance) != 1)
+                               continue;
+                       
+                       u32 i = vm->m_area.index(x0 + x1, y0 + y1, z0 + z1);
+                       if (vm->m_data[i].getContent() == wherein)
+                               vm->m_data[i] = n_ore;
+               }
+       }
+}
+
+
+void OreSheet::generate(ManualMapVoxelManipulator *vm, int seed,
+                                               u32 blockseed, v3s16 nmin, v3s16 nmax) {
+       PseudoRandom pr(blockseed + 4234);
+       MapNode n_ore(ore, 0, ore_param2);
+       
+       int max_height = clust_size;
+       int y_start = pr.range(nmin.Y, nmax.Y - max_height);
+       
+       if (!noise) {
+               int sx = nmax.X - nmin.X + 1;
+               int sz = nmax.Z - nmin.Z + 1;
+               noise = new Noise(np, 0, sx, sz);
+       }
+       noise->seed = seed + y_start;
+       noise->perlinMap2D(nmin.X, nmin.Z);
+       
+       int index = 0;
+       for (int z = nmin.Z; z <= nmax.Z; z++)
+       for (int x = nmin.X; x <= nmax.X; x++) {
+               float noiseval = noise->result[index++];
+               if (noiseval < nthresh)
+                       continue;
+                       
+               int height = max_height * (1. / pr.range(1, 3));
+               int y0 = y_start + np->scale * noiseval; //pr.range(1, 3) - 1;
+               int y1 = y0 + height;
+               for (int y = y0; y != y1; y++) {
+                       u32 i = vm->m_area.index(x, y, z);
+                       if (!vm->m_area.contains(i))
+                               continue;
+                               
+                       if (vm->m_data[i].getContent() == wherein)
+                               vm->m_data[i] = n_ore;
+               }
+       }
+}
+
+
 void Mapgen::updateLiquid(UniqueQueue<v3s16> *trans_liquid, v3s16 nmin, v3s16 nmax) {
        bool isliquid, wasliquid;
-       u32 i;
+       v3s16 em  = vm->m_area.getExtent();
 
        for (s16 z = nmin.Z; z <= nmax.Z; z++) {
                for (s16 x = nmin.X; x <= nmax.X; x++) {
-                       v2s16 p2d(x, z);
                        wasliquid = true;
-                       v3s16 em  = vm->m_area.getExtent();
-                       i = vm->m_area.index(v3s16(p2d.X, nmax.Y, p2d.Y));
-
+                       
+                       u32 i = vm->m_area.index(x, nmax.Y, z);
                        for (s16 y = nmax.Y; y >= nmin.Y; y--) {
                                isliquid = ndef->get(vm->m_data[i]).isLiquid();
                                
                                // there was a change between liquid and nonliquid, add to queue
                                if (isliquid != wasliquid)
-                                       trans_liquid->push_back(v3s16(p2d.X, y, p2d.Y));
+                                       trans_liquid->push_back(v3s16(x, y, z));
 
                                wasliquid = isliquid;
                                vm->m_area.add_y(em, i, -1);
@@ -75,23 +225,122 @@ void Mapgen::updateLiquid(UniqueQueue<v3s16> *trans_liquid, v3s16 nmin, v3s16 nm
 }
 
 
-void Mapgen::updateLighting(v3s16 nmin, v3s16 nmax) {
-       enum LightBank banks[2] = {LIGHTBANK_DAY, LIGHTBANK_NIGHT};
+void Mapgen::setLighting(v3s16 nmin, v3s16 nmax, u8 light) {
+       ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
+       VoxelArea a(nmin, nmax);
+
+       for (int z = a.MinEdge.Z; z <= a.MaxEdge.Z; z++) {
+               for (int y = a.MinEdge.Y; y <= a.MaxEdge.Y; y++) {
+                       u32 i = vm->m_area.index(a.MinEdge.X, y, z);
+                       for (int x = a.MinEdge.X; x <= a.MaxEdge.X; x++, i++)
+                               vm->m_data[i].param1 = light;
+               }
+       }
+}
+
+
+void Mapgen::lightSpread(VoxelArea &a, v3s16 p, u8 light) {
+       if (light <= 1 || !a.contains(p))
+               return;
+               
+       u32 vi = vm->m_area.index(p);
+       MapNode &nn = vm->m_data[vi];
+
+       light--;
+       // should probably compare masked, but doesn't seem to make a difference
+       if (light <= nn.param1 || !ndef->get(nn).light_propagates)
+               return;
+       
+       nn.param1 = light;
+       
+       lightSpread(a, p + v3s16(0, 0, 1), light);
+       lightSpread(a, p + v3s16(0, 1, 0), light);
+       lightSpread(a, p + v3s16(1, 0, 0), light);
+       lightSpread(a, p - v3s16(0, 0, 1), light);
+       lightSpread(a, p - v3s16(0, 1, 0), light);
+       lightSpread(a, p - v3s16(1, 0, 0), light);
+}
+
+
+void Mapgen::calcLighting(v3s16 nmin, v3s16 nmax) {
+       VoxelArea a(nmin, nmax);
+       bool block_is_underground = (water_level >= nmax.Y);
+
+       ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
+       //TimeTaker t("updateLighting");
+
+       // first, send vertical rays of sunshine downward
+       v3s16 em = vm->m_area.getExtent();
+       for (int z = a.MinEdge.Z; z <= a.MaxEdge.Z; z++) {
+               for (int x = a.MinEdge.X; x <= a.MaxEdge.X; x++) {
+                       // see if we can get a light value from the overtop
+                       u32 i = vm->m_area.index(x, a.MaxEdge.Y + 1, z);
+                       if (vm->m_data[i].getContent() == CONTENT_IGNORE) {
+                               if (block_is_underground)
+                                       continue;
+                       } else if ((vm->m_data[i].param1 & 0x0F) != LIGHT_SUN) {
+                               continue;
+                       }
+                       vm->m_area.add_y(em, i, -1);
+
+                       for (int y = a.MaxEdge.Y; y >= a.MinEdge.Y; y--) {
+                               MapNode &n = vm->m_data[i];
+                               if (!ndef->get(n).sunlight_propagates)
+                                       break;
+                               n.param1 = LIGHT_SUN;
+                               vm->m_area.add_y(em, i, -1);
+                       }
+               }
+       }
+       
+       // now spread the sunlight and light up any sources
+       for (int z = a.MinEdge.Z; z <= a.MaxEdge.Z; z++) {
+               for (int y = a.MinEdge.Y; y <= a.MaxEdge.Y; y++) {
+                       u32 i = vm->m_area.index(a.MinEdge.X, y, z);
+                       for (int x = a.MinEdge.X; x <= a.MaxEdge.X; x++, i++) {
+                               MapNode &n = vm->m_data[i];
+                               if (n.getContent() == CONTENT_IGNORE ||
+                                       !ndef->get(n).light_propagates)
+                                       continue;
+                               
+                               u8 light_produced = ndef->get(n).light_source & 0x0F;
+                               if (light_produced)
+                                       n.param1 = light_produced;
+                               
+                               u8 light = n.param1 & 0x0F;
+                               if (light) {
+                                       lightSpread(a, v3s16(x,     y,     z + 1), light);
+                                       lightSpread(a, v3s16(x,     y + 1, z    ), light);
+                                       lightSpread(a, v3s16(x + 1, y,     z    ), light);
+                                       lightSpread(a, v3s16(x,     y,     z - 1), light);
+                                       lightSpread(a, v3s16(x,     y - 1, z    ), light);
+                                       lightSpread(a, v3s16(x - 1, y,     z    ), light);
+                               }
+                       }
+               }
+       }
+       
+       //printf("updateLighting: %dms\n", t.stop());
+}
+
 
-       VoxelArea a(nmin - v3s16(1,0,1) * MAP_BLOCKSIZE,
-                               nmax + v3s16(1,0,1) * MAP_BLOCKSIZE);
+void Mapgen::calcLightingOld(v3s16 nmin, v3s16 nmax) {
+       enum LightBank banks[2] = {LIGHTBANK_DAY, LIGHTBANK_NIGHT};
+       VoxelArea a(nmin, nmax);
        bool block_is_underground = (water_level > nmax.Y);
        bool sunlight = !block_is_underground;
 
        ScopeProfiler sp(g_profiler, "EmergeThread: mapgen lighting update", SPT_AVG);
+       
        for (int i = 0; i < 2; i++) {
                enum LightBank bank = banks[i];
-        std::set<v3s16> light_sources;
-        std::map<v3s16, u8> unlight_from;
+               std::set<v3s16> light_sources;
+               std::map<v3s16, u8> unlight_from;
 
                voxalgo::clearLightAndCollectSources(*vm, a, bank, ndef,
                                         light_sources, unlight_from);
                voxalgo::propagateSunlight(*vm, a, sunlight, light_sources, ndef);
+
                vm->unspreadLight(bank, unlight_from, light_sources, ndef);
                vm->spreadLight(bank, light_sources, ndef);
        }
@@ -104,20 +353,18 @@ bool MapgenV6Params::readParams(Settings *settings) {
        freq_desert = settings->getFloat("mgv6_freq_desert");
        freq_beach  = settings->getFloat("mgv6_freq_beach");
 
-       np_terrain_base   = settings->getNoiseParams("mgv6_np_terrain_base");
-       np_terrain_higher = settings->getNoiseParams("mgv6_np_terrain_higher");
-       np_steepness      = settings->getNoiseParams("mgv6_np_steepness");
-       np_height_select  = settings->getNoiseParams("mgv6_np_height_select");
-       np_trees          = settings->getNoiseParams("mgv6_np_trees");
-       np_mud            = settings->getNoiseParams("mgv6_np_mud");
-       np_beach          = settings->getNoiseParams("mgv6_np_beach");
-       np_biome          = settings->getNoiseParams("mgv6_np_biome");
-       np_cave           = settings->getNoiseParams("mgv6_np_cave");
-
-       bool success =
-               np_terrain_base  && np_terrain_higher && np_steepness &&
-               np_height_select && np_trees          && np_mud       &&
-               np_beach         && np_biome          && np_cave;
+       bool success = 
+               settings->getNoiseParams("mgv6_np_terrain_base",   np_terrain_base)   &&
+               settings->getNoiseParams("mgv6_np_terrain_higher", np_terrain_higher) &&
+               settings->getNoiseParams("mgv6_np_steepness",      np_steepness)      &&
+               settings->getNoiseParams("mgv6_np_height_select",  np_height_select)  &&
+               settings->getNoiseParams("mgv6_np_mud",            np_mud)            &&
+               settings->getNoiseParams("mgv6_np_beach",          np_beach)          &&
+               settings->getNoiseParams("mgv6_np_biome",          np_biome)          &&
+               settings->getNoiseParams("mgv6_np_cave",           np_cave)           &&
+               settings->getNoiseParams("mgv6_np_humidity",       np_humidity)       &&
+               settings->getNoiseParams("mgv6_np_trees",          np_trees)          &&
+               settings->getNoiseParams("mgv6_np_apple_trees",    np_apple_trees);
        return success;
 }
 
@@ -130,11 +377,35 @@ void MapgenV6Params::writeParams(Settings *settings) {
        settings->setNoiseParams("mgv6_np_terrain_higher", np_terrain_higher);
        settings->setNoiseParams("mgv6_np_steepness",      np_steepness);
        settings->setNoiseParams("mgv6_np_height_select",  np_height_select);
-       settings->setNoiseParams("mgv6_np_trees",          np_trees);
        settings->setNoiseParams("mgv6_np_mud",            np_mud);
        settings->setNoiseParams("mgv6_np_beach",          np_beach);
        settings->setNoiseParams("mgv6_np_biome",          np_biome);
        settings->setNoiseParams("mgv6_np_cave",           np_cave);
+       settings->setNoiseParams("mgv6_np_humidity",       np_humidity);
+       settings->setNoiseParams("mgv6_np_trees",          np_trees);
+       settings->setNoiseParams("mgv6_np_apple_trees",    np_apple_trees);
+}
+
+
+bool MapgenV7Params::readParams(Settings *settings) {
+       bool success = 
+               settings->getNoiseParams("mgv7_np_terrain_base",    np_terrain_base)    &&
+               settings->getNoiseParams("mgv7_np_terrain_alt",     np_terrain_alt)     &&
+               settings->getNoiseParams("mgv7_np_terrain_mod",     np_terrain_mod)     &&
+               settings->getNoiseParams("mgv7_np_terrain_persist", np_terrain_persist) &&
+               settings->getNoiseParams("mgv7_np_height_select",   np_height_select)   &&
+               settings->getNoiseParams("mgv7_np_ridge",           np_ridge);
+       return success;
+}
+
+
+void MapgenV7Params::writeParams(Settings *settings) {
+       settings->setNoiseParams("mgv7_np_terrain_base",    np_terrain_base);
+       settings->setNoiseParams("mgv7_np_terrain_alt",     np_terrain_alt);
+       settings->setNoiseParams("mgv7_np_terrain_mod",     np_terrain_mod);
+       settings->setNoiseParams("mgv7_np_terrain_persist", np_terrain_persist);
+       settings->setNoiseParams("mgv7_np_height_select",   np_height_select);
+       settings->setNoiseParams("mgv7_np_ridge",           np_ridge);
 }