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Mgv7: Add option to repeat surface biomes in floatlands

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paramat 2017-07-13 21:03:16 +01:00 committed by paramat
parent 49920cfe8d
commit dc9e4517a8
4 changed files with 29 additions and 20 deletions
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6
builtin/settingtypes.txt
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@ -1151,11 +1151,11 @@ mgv6_np_apple_trees (Apple trees noise) noise_params 0, 1, (100, 100, 100), 3429
[***Mapgen v7]
# Map generation attributes specific to Mapgen v7.
# The 'ridges' flag enables the rivers.
# Floatlands are currently experimental and subject to change.
# 'ridges' enables the rivers.
# 'biomerepeat' causes surface biomes to repeat in the floatlands.
# Flags that are not specified in the flag string are not modified from the default.
# Flags starting with 'no' are used to explicitly disable them.
mgv7_spflags (Mapgen v7 specific flags) flags mountains,ridges,nofloatlands,caverns mountains,ridges,floatlands,caverns,nomountains,noridges,nofloatlands,nocaverns
mgv7_spflags (Mapgen v7 specific flags) flags mountains,ridges,nofloatlands,caverns,biomerepeat mountains,ridges,floatlands,caverns,biomerepeat,nomountains,noridges,nofloatlands,nocaverns,nobiomerepeat
# Controls width of tunnels, a smaller value creates wider tunnels.
mgv7_cave_width (Cave width) float 0.09

8
minetest.conf.example
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@ -1390,12 +1390,12 @@
#### Mapgen v7
# Map generation attributes specific to Mapgen v7.
# The 'ridges' flag enables the rivers.
# Floatlands are currently experimental and subject to change.
# 'ridges' enables the rivers.
# 'biomerepeat' causes surface biomes to repeat in the floatlands.
# Flags that are not specified in the flag string are not modified from the default.
# Flags starting with 'no' are used to explicitly disable them.
# type: flags possible values: mountains, ridges, floatlands, caverns, nomountains, noridges, nofloatlands, nocaverns
# mgv7_spflags = mountains,ridges,nofloatlands,caverns
# type: flags possible values: mountains, ridges, floatlands, caverns, biomerepeat, nomountains, noridges, nofloatlands, nocaverns, nobiomerepeat
# mgv7_spflags = mountains,ridges,nofloatlands,caverns,biomerepeat
# Controls width of tunnels, a smaller value creates wider tunnels.
# type: float

11
src/mapgen_v7.cpp
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@ -44,6 +44,7 @@ FlagDesc flagdesc_mapgen_v7[] = {
{"ridges", MGV7_RIDGES},
{"floatlands", MGV7_FLOATLANDS},
{"caverns", MGV7_CAVERNS},
{"biomerepeat", MGV7_BIOMEREPEAT},
{NULL, 0}
};
@ -285,6 +286,12 @@ void MapgenV7::makeChunk(BlockMakeData *data)
blockseed = getBlockSeed2(full_node_min, seed);
// Get zero level for biomes and decorations
// Optionally repeat surface biomes in floatlands
s16 biome_zero_level = ((spflags & MGV7_FLOATLANDS) &&
(spflags & MGV7_BIOMEREPEAT) && node_max.Y >= shadow_limit) ?
floatland_level - 1 : water_level - 1;
// Generate base and mountain terrain
// An initial heightmap is no longer created here for use in generateRidgeTerrain()
s16 stone_surface_max_y = generateTerrain();
@ -298,7 +305,7 @@ void MapgenV7::makeChunk(BlockMakeData *data)
// Init biome generator, place biome-specific nodes, and build biomemap
biomegen->calcBiomeNoise(node_min);
MgStoneType stone_type = generateBiomes(water_level - 1);
MgStoneType stone_type = generateBiomes(biome_zero_level);
// Generate caverns, tunnels and classic caves
if (flags & MG_CAVES) {
@ -323,7 +330,7 @@ void MapgenV7::makeChunk(BlockMakeData *data)
// Generate the registered decorations
if (flags & MG_DECORATIONS)
m_emerge->decomgr->placeAllDecos(this, blockseed,
node_min, node_max, water_level - 1);
node_min, node_max, biome_zero_level);
// Generate the registered ores
m_emerge->oremgr->placeAllOres(this, blockseed,

6
src/mapgen_v7.h
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@ -23,11 +23,12 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "mapgen.h"
//////////// Mapgen V7 flags
/////////////// Mapgen V7 flags
#define MGV7_MOUNTAINS 0x01
#define MGV7_RIDGES 0x02
#define MGV7_FLOATLANDS 0x04
#define MGV7_CAVERNS 0x08
#define MGV7_BIOMEREPEAT 0x10
class BiomeManager;
@ -35,7 +36,8 @@ extern FlagDesc flagdesc_mapgen_v7[];
struct MapgenV7Params : public MapgenParams {
u32 spflags = MGV7_MOUNTAINS | MGV7_RIDGES | MGV7_CAVERNS;
u32 spflags = MGV7_MOUNTAINS | MGV7_RIDGES |
MGV7_CAVERNS | MGV7_BIOMEREPEAT;
float cave_width = 0.09f;
s16 large_cave_depth = -33;
s16 lava_depth = -256;