oss/luanti
oss/luanti
1
0
Fork 0
mirror of https://github.com/luanti-org/luanti.git synced 2025-06-27 16:36:03 +00:00
Code Wiki Activity

Ore: Add Vein ore type

Browse source
This commit is contained in:
kwolekr 2014-12-28 21:17:12 -05:00
parent 900fa26965
commit 61dfa912f5
4 changed files with 106 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

60
src/mg_ore.cpp
View file

@ -27,10 +27,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
const char *OreManager::ELEMENT_TITLE = "ore";
FlagDesc flagdesc_ore[] = {
{"absheight", OREFLAG_ABSHEIGHT},
{"scatter_noisedensity", OREFLAG_DENSITY},
{"claylike_nodeisnt", OREFLAG_NODEISNT},
{NULL, 0}
{"absheight", OREFLAG_ABSHEIGHT},
{NULL, 0}
};
@ -217,7 +215,7 @@ void OreBlob::generate(ManualMapVoxelManipulator *vm, int seed, u32 blockseed,
int volume = (nmax.X - nmin.X + 1) *
(nmax.Y - nmin.Y + 1) *
(nmax.Z - nmin.Z + 1);
int csize = clust_size;
int csize = clust_size;
int nblobs = volume / clust_scarcity;
if (!noise)
@ -261,3 +259,55 @@ void OreBlob::generate(ManualMapVoxelManipulator *vm, int seed, u32 blockseed,
}
}
}
///////////////////////////////////////////////////////////////////////////////
OreVein::~OreVein()
{
delete noise2;
}
void OreVein::generate(ManualMapVoxelManipulator *vm, int seed, u32 blockseed,
v3s16 nmin, v3s16 nmax)
{
PseudoRandom pr(blockseed + 520);
MapNode n_ore(c_ore, 0, ore_param2);
if (!noise) {
int sx = nmax.X - nmin.X + 1;
int sy = nmax.Y - nmin.Y + 1;
int sz = nmax.Z - nmin.Z + 1;
noise = new Noise(&np, seed, sx, sy, sz);
noise2 = new Noise(&np, seed + 436, sx, sy, sz);
}
bool noise_generated = false;
size_t index = 0;
for (int z = nmin.Z; z <= nmax.Z; z++)
for (int y = nmin.Y; y <= nmax.Y; y++)
for (int x = nmin.X; x <= nmax.X; x++, index++) {
u32 i = vm->m_area.index(x, y, z);
if (!vm->m_area.contains(i))
continue;
if (!CONTAINS(c_wherein, vm->m_data[i].getContent()))
continue;
// Same lazy generation optimization as in OreBlob
if (!noise_generated) {
noise_generated = true;
noise->perlinMap3D(nmin.X, nmin.Y, nmin.Z);
noise2->perlinMap3D(nmin.X, nmin.Y, nmin.Z);
}
// randval ranges from -1..1
float randval = (float)pr.next() / (PSEUDORANDOM_MAX / 2) - 1.f;
float noiseval = contour(noise->result[index]);
float noiseval2 = contour(noise2->result[index]);
if (noiseval * noiseval2 + randval * random_factor < nthresh)
continue;
vm->m_data[i] = n_ore;
}
}