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MgV5/6/7: Generate dungeons above water level

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Use/add stone_surface_max_y to speed-optimise/guide dungeon generation
MgV7: Don't let mountain terrain chop dungeons at mapchunk borders
Make mountain terrain update stone_surface_max_y for caves in mountains
This commit is contained in:
paramat 2014-12-31 00:19:05 +00:00 • committed by kwolekr
parent 938a3f2976
commit 7452d5399b
6 changed files with 25 additions and 15 deletions
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12
src/mapgen_v5.cpp
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@ -252,7 +252,8 @@ void MapgenV5::makeChunk(BlockMakeData *data)
calculateNoise();
// Generate base terrain
generateBaseTerrain();
s16 stone_surface_max_y = generateBaseTerrain();
updateHeightmap(node_min, node_max);
// Generate underground dirt, sand, gravel and lava blobs
@ -268,7 +269,7 @@ void MapgenV5::makeChunk(BlockMakeData *data)
generateBiomes();
// Generate dungeons and desert temples
if (flags & MG_DUNGEONS) {
if ((flags & MG_DUNGEONS) && (stone_surface_max_y >= node_min.Y)) {
DungeonGen dgen(this, NULL);
dgen.generate(blockseed, full_node_min, full_node_max);
}
@ -342,10 +343,11 @@ void MapgenV5::calculateNoise()
// Make base ground level
void MapgenV5::generateBaseTerrain()
int MapgenV5::generateBaseTerrain()
{
u32 index = 0;
u32 index2d = 0;
int stone_surface_max_y = -MAP_GENERATION_LIMIT;
for(s16 z=node_min.Z; z<=node_max.Z; z++) {
for(s16 y=node_min.Y - 1; y<=node_max.Y + 1; y++) {
@ -372,12 +374,16 @@ void MapgenV5::generateBaseTerrain()
vm->m_data[i] = MapNode(CONTENT_AIR);
} else {
vm->m_data[i] = MapNode(c_stone);
if (y > stone_surface_max_y)
stone_surface_max_y = y;
}
}
index2d = index2d - ystride;
}
index2d = index2d + ystride;
}
return stone_surface_max_y;
}