+MapgenBasic::MapgenBasic(int mapgenid, MapgenParams *params, EmergeManager *emerge)
+ : Mapgen(mapgenid, params, emerge)
+{
+ this->m_emerge = emerge;
+ this->m_bmgr = emerge->biomemgr;
+
+ //// Here, 'stride' refers to the number of elements needed to skip to index
+ //// an adjacent element for that coordinate in noise/height/biome maps
+ //// (*not* vmanip content map!)
+
+ // Note there is no X stride explicitly defined. Items adjacent in the X
+ // coordinate are assumed to be adjacent in memory as well (i.e. stride of 1).
+
+ // Number of elements to skip to get to the next Y coordinate
+ this->ystride = csize.X;
+
+ // Number of elements to skip to get to the next Z coordinate
+ this->zstride = csize.X * csize.Y;
+
+ // Z-stride value for maps oversized for 1-down overgeneration
+ this->zstride_1d = csize.X * (csize.Y + 1);
+
+ // Z-stride value for maps oversized for 1-up 1-down overgeneration
+ this->zstride_1u1d = csize.X * (csize.Y + 2);
+
+ //// Allocate heightmap
+ this->heightmap = new s16[csize.X * csize.Z];
+
+ //// Initialize biome generator
+ // TODO(hmmmm): should we have a way to disable biomemanager biomes?
+ biomegen = m_bmgr->createBiomeGen(BIOMEGEN_ORIGINAL, params->bparams, csize);
+ biomemap = biomegen->biomemap;
+
+ //// Look up some commonly used content
+ c_stone = ndef->getId("mapgen_stone");
+ c_water_source = ndef->getId("mapgen_water_source");
+ c_desert_stone = ndef->getId("mapgen_desert_stone");
+ c_sandstone = ndef->getId("mapgen_sandstone");
+ c_river_water_source = ndef->getId("mapgen_river_water_source");
+
+ // Fall back to more basic content if not defined
+ if (c_desert_stone == CONTENT_IGNORE)
+ c_desert_stone = c_stone;
+ if (c_sandstone == CONTENT_IGNORE)
+ c_sandstone = c_stone;
+ if (c_river_water_source == CONTENT_IGNORE)
+ c_river_water_source = c_water_source;
+
+ //// Content used for dungeon generation
+ c_cobble = ndef->getId("mapgen_cobble");
+ c_stair_cobble = ndef->getId("mapgen_stair_cobble");
+ c_mossycobble = ndef->getId("mapgen_mossycobble");
+ c_sandstonebrick = ndef->getId("mapgen_sandstonebrick");
+ c_stair_sandstonebrick = ndef->getId("mapgen_stair_sandstonebrick");
+
+ // Fall back to more basic content if not defined
+ if (c_mossycobble == CONTENT_IGNORE)
+ c_mossycobble = c_cobble;
+ if (c_stair_cobble == CONTENT_IGNORE)
+ c_stair_cobble = c_cobble;
+ if (c_sandstonebrick == CONTENT_IGNORE)
+ c_sandstonebrick = c_sandstone;
+ if (c_stair_sandstonebrick == CONTENT_IGNORE)
+ c_stair_sandstonebrick = c_sandstone;
+}
+
+
+MapgenBasic::~MapgenBasic()
+{
+ delete biomegen;
+ delete []heightmap;