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-rw-r--r--src/mapgen.cpp204
1 files changed, 146 insertions, 58 deletions
diff --git a/src/mapgen.cpp b/src/mapgen.cpp
index fd4f5858f..1f7f98621 100644
--- a/src/mapgen.cpp
+++ b/src/mapgen.cpp
@@ -1,7 +1,8 @@
/*
Minetest
-Copyright (C) 2010-2015 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
Copyright (C) 2010-2015 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2013-2016 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
+Copyright (C) 2015-2017 paramat
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
@@ -84,7 +85,7 @@ static MapgenDesc g_reg_mapgens[] = {
{"flat", true},
{"fractal", true},
{"valleys", true},
- {"singlenode", false},
+ {"singlenode", true},
};
STATIC_ASSERT(
@@ -97,11 +98,12 @@ STATIC_ASSERT(
Mapgen::Mapgen()
{
- generating = false;
- id = -1;
- seed = 0;
- water_level = 0;
- flags = 0;
+ generating = false;
+ id = -1;
+ seed = 0;
+ water_level = 0;
+ mapgen_limit = 0;
+ flags = 0;
vm = NULL;
ndef = NULL;
@@ -114,11 +116,12 @@ Mapgen::Mapgen()
Mapgen::Mapgen(int mapgenid, MapgenParams *params, EmergeManager *emerge) :
gennotify(emerge->gen_notify_on, &emerge->gen_notify_on_deco_ids)
{
- generating = false;
- id = mapgenid;
- water_level = params->water_level;
- flags = params->flags;
- csize = v3s16(1, 1, 1) * (params->chunksize * MAP_BLOCKSIZE);
+ generating = false;
+ id = mapgenid;
+ water_level = params->water_level;
+ mapgen_limit = params->mapgen_limit;
+ flags = params->flags;
+ csize = v3s16(1, 1, 1) * (params->chunksize * MAP_BLOCKSIZE);
/*
We are losing half our entropy by doing this, but it is necessary to
@@ -314,7 +317,6 @@ void Mapgen::updateHeightmap(v3s16 nmin, v3s16 nmax)
heightmap[index] = y;
}
}
- //printf("updateHeightmap: %dus\n", t.stop());
}
inline bool Mapgen::isLiquidHorizontallyFlowable(u32 vi, v3s16 em)
@@ -587,35 +589,39 @@ MapgenBasic::MapgenBasic(int mapgenid, MapgenParams *params, EmergeManager *emer
//// 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_water_source = ndef->getId("mapgen_water_source");
c_river_water_source = ndef->getId("mapgen_river_water_source");
+ c_lava_source = ndef->getId("mapgen_lava_source");
// Fall back to more basic content if not defined
+ // river_water_source cannot fallback to water_source because river water
+ // needs to be non-renewable and have a short flow range.
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");
+ c_cobble = ndef->getId("mapgen_cobble");
+ c_mossycobble = ndef->getId("mapgen_mossycobble");
+ c_stair_cobble = ndef->getId("mapgen_stair_cobble");
+ c_stair_desert_stone = ndef->getId("mapgen_stair_desert_stone");
+ c_sandstonebrick = ndef->getId("mapgen_sandstonebrick");
+ c_stair_sandstone_block = ndef->getId("mapgen_stair_sandstone_block");
// 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_stair_desert_stone == CONTENT_IGNORE)
+ c_stair_desert_stone = c_desert_stone;
if (c_sandstonebrick == CONTENT_IGNORE)
c_sandstonebrick = c_sandstone;
- if (c_stair_sandstonebrick == CONTENT_IGNORE)
- c_stair_sandstonebrick = c_sandstone;
+ if (c_stair_sandstone_block == CONTENT_IGNORE)
+ c_stair_sandstone_block = c_sandstonebrick;
}
@@ -835,6 +841,18 @@ void MapgenBasic::generateCaves(s16 max_stone_y, s16 large_cave_depth)
}
+bool MapgenBasic::generateCaverns(s16 max_stone_y)
+{
+ if (node_min.Y > max_stone_y || node_min.Y > cavern_limit)
+ return false;
+
+ CavernsNoise caverns_noise(ndef, csize, &np_cavern,
+ seed, cavern_limit, cavern_taper, cavern_threshold);
+
+ return caverns_noise.generateCaverns(vm, node_min, node_max);
+}
+
+
void MapgenBasic::generateDungeons(s16 max_stone_y, MgStoneType stone_type)
{
if (max_stone_y < node_min.Y)
@@ -842,47 +860,61 @@ void MapgenBasic::generateDungeons(s16 max_stone_y, MgStoneType stone_type)
DungeonParams dp;
- dp.seed = seed;
- dp.c_water = c_water_source;
- dp.c_river_water = c_river_water_source;
- dp.rooms_min = 2;
- dp.rooms_max = 16;
- dp.y_min = -MAX_MAP_GENERATION_LIMIT;
- dp.y_max = MAX_MAP_GENERATION_LIMIT;
- dp.np_density = nparams_dungeon_density;
- dp.np_alt_wall = nparams_dungeon_alt_wall;
+ dp.seed = seed;
+ dp.c_water = c_water_source;
+ dp.c_river_water = c_river_water_source;
+
+ dp.only_in_ground = true;
+ dp.corridor_len_min = 1;
+ dp.corridor_len_max = 13;
+ dp.rooms_min = 2;
+ dp.rooms_max = 16;
+ dp.y_min = -MAX_MAP_GENERATION_LIMIT;
+ dp.y_max = MAX_MAP_GENERATION_LIMIT;
+
+ dp.np_density = nparams_dungeon_density;
+ dp.np_alt_wall = nparams_dungeon_alt_wall;
switch (stone_type) {
default:
case MGSTONE_STONE:
- dp.c_wall = c_cobble;
- dp.c_alt_wall = c_mossycobble;
- dp.c_stair = c_stair_cobble;
-
- dp.diagonal_dirs = false;
- dp.holesize = v3s16(1, 2, 1);
- dp.roomsize = v3s16(0, 0, 0);
- dp.notifytype = GENNOTIFY_DUNGEON;
+ dp.c_wall = c_cobble;
+ dp.c_alt_wall = c_mossycobble;
+ dp.c_stair = c_stair_cobble;
+
+ dp.diagonal_dirs = false;
+ dp.holesize = v3s16(1, 2, 1);
+ dp.room_size_min = v3s16(4, 4, 4);
+ dp.room_size_max = v3s16(8, 6, 8);
+ dp.room_size_large_min = v3s16(8, 8, 8);
+ dp.room_size_large_max = v3s16(16, 16, 16);
+ dp.notifytype = GENNOTIFY_DUNGEON;
break;
case MGSTONE_DESERT_STONE:
- dp.c_wall = c_desert_stone;
- dp.c_alt_wall = CONTENT_IGNORE;
- dp.c_stair = c_desert_stone;
-
- dp.diagonal_dirs = true;
- dp.holesize = v3s16(2, 3, 2);
- dp.roomsize = v3s16(2, 5, 2);
- dp.notifytype = GENNOTIFY_TEMPLE;
+ dp.c_wall = c_desert_stone;
+ dp.c_alt_wall = CONTENT_IGNORE;
+ dp.c_stair = c_stair_desert_stone;
+
+ dp.diagonal_dirs = true;
+ dp.holesize = v3s16(2, 3, 2);
+ dp.room_size_min = v3s16(6, 9, 6);
+ dp.room_size_max = v3s16(10, 11, 10);
+ dp.room_size_large_min = v3s16(10, 13, 10);
+ dp.room_size_large_max = v3s16(18, 21, 18);
+ dp.notifytype = GENNOTIFY_TEMPLE;
break;
case MGSTONE_SANDSTONE:
- dp.c_wall = c_sandstonebrick;
- dp.c_alt_wall = CONTENT_IGNORE;
- dp.c_stair = c_sandstonebrick;
-
- dp.diagonal_dirs = false;
- dp.holesize = v3s16(2, 2, 2);
- dp.roomsize = v3s16(2, 0, 2);
- dp.notifytype = GENNOTIFY_DUNGEON;
+ dp.c_wall = c_sandstonebrick;
+ dp.c_alt_wall = CONTENT_IGNORE;
+ dp.c_stair = c_stair_sandstone_block;
+
+ dp.diagonal_dirs = false;
+ dp.holesize = v3s16(2, 2, 2);
+ dp.room_size_min = v3s16(6, 4, 6);
+ dp.room_size_max = v3s16(10, 6, 10);
+ dp.room_size_large_min = v3s16(10, 8, 10);
+ dp.room_size_large_max = v3s16(18, 16, 18);
+ dp.notifytype = GENNOTIFY_DUNGEON;
break;
}
@@ -984,10 +1016,14 @@ void MapgenParams::readParams(const Settings *settings)
}
std::string mg_name;
- if (settings->getNoEx("mg_name", mg_name))
- this->mgtype = Mapgen::getMapgenType(mg_name);
+ if (settings->getNoEx("mg_name", mg_name)) {
+ mgtype = Mapgen::getMapgenType(mg_name);
+ if (mgtype == MAPGEN_INVALID)
+ mgtype = MAPGEN_DEFAULT;
+ }
settings->getS16NoEx("water_level", water_level);
+ settings->getS16NoEx("mapgen_limit", mapgen_limit);
settings->getS16NoEx("chunksize", chunksize);
settings->getFlagStrNoEx("mg_flags", flags, flagdesc_mapgen);
@@ -1005,9 +1041,61 @@ void MapgenParams::writeParams(Settings *settings) const
settings->set("mg_name", Mapgen::getMapgenName(mgtype));
settings->setU64("seed", seed);
settings->setS16("water_level", water_level);
+ settings->setS16("mapgen_limit", mapgen_limit);
settings->setS16("chunksize", chunksize);
settings->setFlagStr("mg_flags", flags, flagdesc_mapgen, U32_MAX);
if (bparams)
bparams->writeParams(settings);
}
+
+// Calculate edges of outermost generated mapchunks (less than
+// 'mapgen_limit'), and corresponding exact limits for SAO entities.
+void MapgenParams::calcMapgenEdges()
+{
+ // Central chunk offset, in blocks
+ s16 ccoff_b = -chunksize / 2;
+
+ // Chunksize, in nodes
+ s32 csize_n = chunksize * MAP_BLOCKSIZE;
+
+ // Minp/maxp of central chunk, in nodes
+ s16 ccmin = ccoff_b * MAP_BLOCKSIZE;
+ s16 ccmax = ccmin + csize_n - 1;
+ // Fullminp/fullmaxp of central chunk, in nodes
+ s16 ccfmin = ccmin - MAP_BLOCKSIZE;
+ s16 ccfmax = ccmax + MAP_BLOCKSIZE;
+ // Effective mapgen limit, in blocks
+ // Uses same calculation as ServerMap::blockpos_over_mapgen_limit(v3s16 p)
+ s16 mapgen_limit_b = rangelim(mapgen_limit,
+ 0, MAX_MAP_GENERATION_LIMIT) / MAP_BLOCKSIZE;
+ // Effective mapgen limits, in nodes
+ s16 mapgen_limit_min = -mapgen_limit_b * MAP_BLOCKSIZE;
+ s16 mapgen_limit_max = (mapgen_limit_b + 1) * MAP_BLOCKSIZE - 1;
+ // Number of complete chunks from central chunk fullminp/fullmaxp
+ // to effective mapgen limits.
+ s16 numcmin = MYMAX((ccfmin - mapgen_limit_min) / csize_n, 0);
+ s16 numcmax = MYMAX((mapgen_limit_max - ccfmax) / csize_n, 0);
+ // Mapgen edges, in nodes
+ // These values may be useful later as additional class members
+ s16 mapgen_edge_min = ccmin - numcmin * csize_n;
+ s16 mapgen_edge_max = ccmax + numcmax * csize_n;
+ // SAO position limits, in Irrlicht units
+ m_sao_limit_min = mapgen_edge_min * BS - 3.0f;
+ m_sao_limit_max = mapgen_edge_max * BS + 3.0f;
+}
+
+
+bool MapgenParams::saoPosOverLimit(const v3f &p)
+{
+ if (!m_sao_limit_calculated) {
+ calcMapgenEdges();
+ m_sao_limit_calculated = true;
+ }
+ return p.X < m_sao_limit_min ||
+ p.X > m_sao_limit_max ||
+ p.Y < m_sao_limit_min ||
+ p.Y > m_sao_limit_max ||
+ p.Z < m_sao_limit_min ||
+ p.Z > m_sao_limit_max;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 07:50:56 +0000