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Dungeons: Clean up parameters, improve structure variety (#8918)

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While preserving the general character of dungeon structure.
Slightly increase the range of standard room horizontal size, while
preserving the average horizontal size.
Return to classic maximum large room size of 16x16x16.
Make 1 in 4 dungeons have a 1 in 8 chance for each room being 'large',
making multiple large rooms possible for the first time.
Make 1 in 8 dungeons allow diagonal corridors, to make these a little
more common.
Make corridor width vary from 1 to 2, but forced to 2 if diagonal
corridors are allowed, to make them passable.
Add some comments.
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Paramat 2019-09-14 23:02:07 +01:00 committed by GitHub
parent 1de4ca1f9d
commit 23bd5630d0
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2 changed files with 16 additions and 11 deletions
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7
src/mapgen/dungeongen.h
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@ -49,7 +49,8 @@ struct DungeonParams {
// 3D noise that determines which c_wall nodes are converted to c_alt_wall // 3D noise that determines which c_wall nodes are converted to c_alt_wall
NoiseParams np_alt_wall; NoiseParams np_alt_wall;
// Number of dungeons generated in mapchunk // Number of dungeons generated in mapchunk. All will use the same set of
// dungeonparams.
u16 num_dungeons; u16 num_dungeons;
// Dungeons only generate in ground // Dungeons only generate in ground
bool only_in_ground; bool only_in_ground;
@ -68,11 +69,13 @@ struct DungeonParams {
u16 large_room_chance; u16 large_room_chance;
// Dimensions of 3D 'brush' that creates corridors. // Dimensions of 3D 'brush' that creates corridors.
// Dimensions are of the empty space, not including walls / floor / ceilng. // Dimensions are of the empty space, not including walls / floor / ceilng.
// Diagonal corridors must have hole width >=2 to be passable.
// Currently, hole width >= 3 causes stair corridor bugs.
v3s16 holesize; v3s16 holesize;
// Corridor length random range // Corridor length random range
u16 corridor_len_min; u16 corridor_len_min;
u16 corridor_len_max; u16 corridor_len_max;
// Diagonal corridors are possible // Diagonal corridors are possible, 1 in 4 corridors will be diagonal
bool diagonal_dirs; bool diagonal_dirs;
// Usually 'GENNOTIFY_DUNGEON', but mapgen v6 uses 'GENNOTIFY_TEMPLE' for // Usually 'GENNOTIFY_DUNGEON', but mapgen v6 uses 'GENNOTIFY_TEMPLE' for
// desert dungeons. // desert dungeons.

20
src/mapgen/mapgen.cpp
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@ -889,19 +889,21 @@ void MapgenBasic::generateDungeons(s16 max_stone_y)
NoiseParams(-0.4, 1.0, v3f(40.0, 40.0, 40.0), 32474, 6, 1.1, 2.0); NoiseParams(-0.4, 1.0, v3f(40.0, 40.0, 40.0), 32474, 6, 1.1, 2.0);
dp.seed = seed; dp.seed = seed;
dp.num_dungeons = num_dungeons;
dp.only_in_ground = true; dp.only_in_ground = true;
dp.num_dungeons = num_dungeons;
dp.notifytype = GENNOTIFY_DUNGEON;
dp.num_rooms = ps.range(2, 16); dp.num_rooms = ps.range(2, 16);
dp.room_size_min = v3s16(6, 5, 6); dp.room_size_min = v3s16(5, 5, 5);
dp.room_size_max = v3s16(10, 6, 10); dp.room_size_max = v3s16(12, 6, 12);
dp.room_size_large_min = v3s16(10, 8, 10); dp.room_size_large_min = v3s16(12, 6, 12);
dp.room_size_large_max = v3s16(18, 16, 18); dp.room_size_large_max = v3s16(16, 16, 16);
dp.large_room_chance = (ps.range(1, 4) == 1) ? 1 : 0; dp.large_room_chance = (ps.range(1, 4) == 1) ? 8 : 0;
dp.holesize = v3s16(2, 3, 2); dp.diagonal_dirs = ps.range(1, 8) == 1;
// Diagonal corridors must have 'hole' width >=2 to be passable
u8 holewidth = (dp.diagonal_dirs) ? 2 : ps.range(1, 2);
dp.holesize = v3s16(holewidth, 3, holewidth);
dp.corridor_len_min = 1; dp.corridor_len_min = 1;
dp.corridor_len_max = 13; dp.corridor_len_max = 13;
dp.diagonal_dirs = ps.range(1, 12) == 1;
dp.notifytype = GENNOTIFY_DUNGEON;
// Get biome at mapchunk midpoint // Get biome at mapchunk midpoint
v3s16 chunk_mid = node_min + (node_max - node_min) / v3s16(2, 2, 2); v3s16 chunk_mid = node_min + (node_max - node_min) / v3s16(2, 2, 2);