Mgv7: Avoid rivergen removing mod-placed nodes when overgenerating (#7388)

Only allow river generation to replace c_stone.
This also acts as an optimisation by being placed before canyon shape
calculation.
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Paramat 2018-05-31 03:06:55 +01:00 committed by GitHub
parent ddd03c38a4
commit df991edaa8
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@ -591,6 +591,11 @@ void MapgenV7::generateRidgeTerrain()
float uwatern = noise_ridge_uwater->result[index2d] * 2.0f;
if (std::fabs(uwatern) > width)
continue;
// Optimises, but also avoids removing nodes placed by mods in
// 'on-generated', when generating outside mapchunk.
content_t c = vm->m_data[vi].getContent();
if (c != c_stone)
continue;
float altitude = y - water_level;
float height_mod = (altitude + 17.0f) / 2.5f;