From 87bc39dca733a2cc805bc1071794c4d5d7937115 Mon Sep 17 00:00:00 2001 From: kwolekr Date: Mon, 2 May 2016 02:24:57 -0400 Subject: Mapgen: Combine generateBiomes, dustTopNodes, and generateCaves This commit condenses the above methods into a single implementation used by V7, V5, Flat, Fractal, and Valleys mapgens and introduces MapgenBasic. --- src/mapgen_valleys.cpp | 165 +------------------------------------------------ 1 file changed, 3 insertions(+), 162 deletions(-) (limited to 'src/mapgen_valleys.cpp') diff --git a/src/mapgen_valleys.cpp b/src/mapgen_valleys.cpp index 44083d9d3..fa790677a 100644 --- a/src/mapgen_valleys.cpp +++ b/src/mapgen_valleys.cpp @@ -65,7 +65,7 @@ static FlagDesc flagdesc_mapgen_valleys[] = { MapgenValleys::MapgenValleys(int mapgenid, MapgenParams *params, EmergeManager *emerge) - : Mapgen(mapgenid, params, emerge) + : MapgenBasic(mapgenid, params, emerge) { this->m_emerge = emerge; this->bmgr = emerge->biomemgr; @@ -302,7 +302,7 @@ void MapgenValleys::makeChunk(BlockMakeData *data) // Cave creation. if (flags & MG_CAVES) - generateCaves(stone_surface_max_y); + generateCaves(stone_surface_max_y, large_cave_depth); // Dungeon creation if ((flags & MG_DUNGEONS) && node_max.Y < 50 && (stone_surface_max_y >= node_min.Y)) { @@ -692,166 +692,7 @@ int MapgenValleys::generateTerrain() return surface_max_y; } - -MgStoneType MapgenValleys::generateBiomes() -{ - v3s16 em = vm->m_area.getExtent(); - u32 index = 0; - MgStoneType stone_type = STONE; - - for (s16 z = node_min.Z; z <= node_max.Z; z++) - for (s16 x = node_min.X; x <= node_max.X; x++, index++) { - Biome *biome = NULL; - u16 depth_top = 0; - u16 base_filler = 0; - u16 depth_water_top = 0; - u32 vi = vm->m_area.index(x, node_max.Y, z); - - // Check node at base of mapchunk above, either a node of a previously - // generated mapchunk or if not, a node of overgenerated base terrain. - content_t c_above = vm->m_data[vi + em.X].getContent(); - bool air_above = c_above == CONTENT_AIR; - bool water_above = (c_above == c_water_source || c_above == c_river_water_source); - - // If there is air or water above enable top/filler placement, otherwise force - // nplaced to stone level by setting a number exceeding any possible filler depth. - u16 nplaced = (air_above || water_above) ? 0 : U16_MAX; - - for (s16 y = node_max.Y; y >= node_min.Y; y--) { - content_t c = vm->m_data[vi].getContent(); - - // Biome is recalculated each time an upper surface is detected while - // working down a column. The selected biome then remains in effect for - // all nodes below until the next surface and biome recalculation. - // Biome is recalculated: - // 1. At the surface of stone below air or water. - // 2. At the surface of water below air. - // 3. When stone or water is detected but biome has not yet been calculated. - if ((c == c_stone && (air_above || water_above || !biome)) - || ((c == c_water_source || c == c_river_water_source) - && (air_above || !biome))) { - // Both heat and humidity have already been adjusted for altitude. - biome = biomegen->getBiomeAtIndex(index, y); - - depth_top = biome->depth_top; - base_filler = MYMAX(depth_top - + biome->depth_filler - + noise_filler_depth->result[index], 0.f); - depth_water_top = biome->depth_water_top; - - // Detect stone type for dungeons during every biome calculation. - // This is more efficient than detecting per-node and will not - // miss any desert stone or sandstone biomes. - if (biome->c_stone == c_desert_stone) - stone_type = DESERT_STONE; - else if (biome->c_stone == c_sandstone) - stone_type = SANDSTONE; - } - - if (c == c_stone) { - content_t c_below = vm->m_data[vi - em.X].getContent(); - - // If the node below isn't solid, make this node stone, so that - // any top/filler nodes above are structurally supported. - // This is done by aborting the cycle of top/filler placement - // immediately by forcing nplaced to stone level. - if (c_below == CONTENT_AIR - || c_below == c_water_source - || c_below == c_river_water_source) - nplaced = U16_MAX; - - if (nplaced < depth_top) { - vm->m_data[vi] = MapNode(biome->c_top); - nplaced++; - } else if (nplaced < base_filler) { - vm->m_data[vi] = MapNode(biome->c_filler); - nplaced++; - } else { - vm->m_data[vi] = MapNode(biome->c_stone); - } - - air_above = false; - water_above = false; - } else if (c == c_water_source) { - vm->m_data[vi] = MapNode((y > (s32)(water_level - depth_water_top)) - ? biome->c_water_top : biome->c_water); - nplaced = 0; // Enable top/filler placement for next surface - air_above = false; - water_above = true; - } else if (c == c_river_water_source) { - vm->m_data[vi] = MapNode(biome->c_river_water); - nplaced = depth_top; // Enable filler placement for next surface - air_above = false; - water_above = true; - } else if (c == CONTENT_AIR) { - nplaced = 0; // Enable top/filler placement for next surface - air_above = true; - water_above = false; - } else { // Possible various nodes overgenerated from neighbouring mapchunks - nplaced = U16_MAX; // Disable top/filler placement - air_above = false; - water_above = false; - } - - vm->m_area.add_y(em, vi, -1); - } - } - - return stone_type; -} - - -void MapgenValleys::dustTopNodes() -{ - if (node_max.Y < water_level) - return; - - v3s16 em = vm->m_area.getExtent(); - u32 index = 0; - - for (s16 z = node_min.Z; z <= node_max.Z; z++) - for (s16 x = node_min.X; x <= node_max.X; x++, index++) { - Biome *biome = (Biome *)bmgr->getRaw(biomemap[index]); - - if (biome->c_dust == CONTENT_IGNORE) - continue; - - u32 vi = vm->m_area.index(x, full_node_max.Y, z); - content_t c_full_max = vm->m_data[vi].getContent(); - s16 y_start; - - if (c_full_max == CONTENT_AIR) { - y_start = full_node_max.Y - 1; - } else if (c_full_max == CONTENT_IGNORE) { - vi = vm->m_area.index(x, node_max.Y + 1, z); - content_t c_max = vm->m_data[vi].getContent(); - - if (c_max == CONTENT_AIR) - y_start = node_max.Y; - else - continue; - } else { - continue; - } - - vi = vm->m_area.index(x, y_start, z); - for (s16 y = y_start; y >= node_min.Y - 1; y--) { - if (vm->m_data[vi].getContent() != CONTENT_AIR) - break; - - vm->m_area.add_y(em, vi, -1); - } - - content_t c = vm->m_data[vi].getContent(); - if (!ndef->get(c).buildable_to && c != CONTENT_IGNORE && c != biome->c_dust) { - vm->m_area.add_y(em, vi, 1); - vm->m_data[vi] = MapNode(biome->c_dust); - } - } -} - - -void MapgenValleys::generateCaves(s16 max_stone_y) +void MapgenValleys::generateCaves(s16 max_stone_y, s16 large_cave_depth) { if (max_stone_y < node_min.Y) return; -- cgit v1.2.3