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Mgvalleys / cavegen: Place riverbed nodes under river water

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When a CavesNoiseIntersection tunnel intersects a river place biome
'riverbed' nodes in tunnel entrance instead of biome 'top' nodes.
This commit is contained in:
paramat 2016-07-20 00:23:08 +01:00
parent 97c763158c
commit 2ba8ad1dfe
2 changed files with 20 additions and 9 deletions
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13
src/cavegen.cpp
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@ -79,6 +79,7 @@ void CavesNoiseIntersection::generateCaves(MMVManip *vm,
for (s16 z = nmin.Z; z <= nmax.Z; z++)
for (s16 x = nmin.X; x <= nmax.X; x++, index2d++) {
bool column_is_open = false; // Is column open to overground
bool is_under_river = false; // Is column under river water
bool is_tunnel = false; // Is tunnel or tunnel floor
u32 vi = vm->m_area.index(x, nmax.Y, z);
u32 index3d = (z - nmin.Z) * m_zstride_1d + m_csize.Y * m_ystride +
@ -99,6 +100,10 @@ void CavesNoiseIntersection::generateCaves(MMVManip *vm,
c == biome->c_water) {
column_is_open = true;
continue;
} else if (c == biome->c_river_water) {
column_is_open = true;
is_under_river = true;
continue;
}
// Ground
float d1 = contour(noise_cave1->result[index3d]);
@ -111,9 +116,13 @@ void CavesNoiseIntersection::generateCaves(MMVManip *vm,
} else {
// Not in tunnel or not ground content
if (is_tunnel && column_is_open &&
(c == biome->c_filler || c == biome->c_stone))
(c == biome->c_filler || c == biome->c_stone)) {
// Tunnel entrance floor
vm->m_data[vi] = MapNode(biome->c_top);
if (is_under_river)
vm->m_data[vi] = MapNode(biome->c_riverbed);
else
vm->m_data[vi] = MapNode(biome->c_top);
}
column_is_open = false;
is_tunnel = false;