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-rw-r--r--src/mg_ore.cpp134
1 files changed, 116 insertions, 18 deletions
diff --git a/src/mg_ore.cpp b/src/mg_ore.cpp
index a94d1d6d9..257901614 100644
--- a/src/mg_ore.cpp
+++ b/src/mg_ore.cpp
@@ -25,8 +25,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "log.h"
FlagDesc flagdesc_ore[] = {
- {"absheight", OREFLAG_ABSHEIGHT},
- {NULL, 0}
+ {"absheight", OREFLAG_ABSHEIGHT},
+ {"puff_cliffs", OREFLAG_PUFF_CLIFFS},
+ {"puff_additive_composition", OREFLAG_PUFF_ADDITIVE},
+ {NULL, 0}
};
@@ -124,7 +126,7 @@ size_t Ore::placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
void OreScatter::generate(MMVManip *vm, int mapseed, u32 blockseed,
v3s16 nmin, v3s16 nmax, u8 *biomemap)
{
- PseudoRandom pr(blockseed);
+ PcgRandom pr(blockseed);
MapNode n_ore(c_ore, 0, ore_param2);
u32 sizex = (nmax.X - nmin.X + 1);
@@ -132,7 +134,7 @@ void OreScatter::generate(MMVManip *vm, int mapseed, u32 blockseed,
(nmax.Y - nmin.Y + 1) *
(nmax.Z - nmin.Z + 1);
u32 csize = clust_size;
- u32 orechance = (csize * csize * csize) / clust_num_ores;
+ u32 cvolume = csize * csize * csize;
u32 nclusters = volume / clust_scarcity;
for (u32 i = 0; i != nclusters; i++) {
@@ -154,7 +156,7 @@ void OreScatter::generate(MMVManip *vm, int mapseed, u32 blockseed,
for (u32 z1 = 0; z1 != csize; z1++)
for (u32 y1 = 0; y1 != csize; y1++)
for (u32 x1 = 0; x1 != csize; x1++) {
- if (pr.range(1, orechance) != 1)
+ if (pr.range(1, cvolume) > clust_num_ores)
continue;
u32 i = vm->m_area.index(x0 + x1, y0 + y1, z0 + z1);
@@ -173,11 +175,16 @@ void OreScatter::generate(MMVManip *vm, int mapseed, u32 blockseed,
void OreSheet::generate(MMVManip *vm, int mapseed, u32 blockseed,
v3s16 nmin, v3s16 nmax, u8 *biomemap)
{
- PseudoRandom pr(blockseed + 4234);
+ PcgRandom pr(blockseed + 4234);
MapNode n_ore(c_ore, 0, ore_param2);
- int max_height = clust_size;
- int y_start = pr.range(nmin.Y, nmax.Y - max_height);
+ u16 max_height = column_height_max;
+ int y_start_min = nmin.Y + max_height;
+ int y_start_max = nmax.Y - max_height;
+
+ int y_start = y_start_min < y_start_max ?
+ pr.range(y_start_min, y_start_max) :
+ (y_start_min + y_start_max) / 2;
if (!noise) {
int sx = nmax.X - nmin.X + 1;
@@ -200,10 +207,12 @@ void OreSheet::generate(MMVManip *vm, int mapseed, u32 blockseed,
continue;
}
- int height = max_height * (1. / pr.range(1, 3));
- int y0 = y_start + np.scale * noiseval; //pr.range(1, 3) - 1;
- int y1 = y0 + height;
- for (int y = y0; y != y1; y++) {
+ u16 height = pr.range(column_height_min, column_height_max);
+ int ymidpoint = y_start + noiseval;
+ int y0 = MYMAX(nmin.Y, ymidpoint - height * (1 - column_midpoint_factor));
+ int y1 = MYMIN(nmax.Y, y0 + height - 1);
+
+ for (int y = y0; y <= y1; y++) {
u32 i = vm->m_area.index(x, y, z);
if (!vm->m_area.contains(i))
continue;
@@ -218,10 +227,98 @@ void OreSheet::generate(MMVManip *vm, int mapseed, u32 blockseed,
///////////////////////////////////////////////////////////////////////////////
+OrePuff::OrePuff() :
+ Ore()
+{
+ noise_puff_top = NULL;
+ noise_puff_bottom = NULL;
+}
+
+
+OrePuff::~OrePuff()
+{
+ delete noise_puff_top;
+ delete noise_puff_bottom;
+}
+
+
+void OrePuff::generate(MMVManip *vm, int mapseed, u32 blockseed,
+ v3s16 nmin, v3s16 nmax, u8 *biomemap)
+{
+ PcgRandom pr(blockseed + 4234);
+ MapNode n_ore(c_ore, 0, ore_param2);
+
+ int y_start = pr.range(nmin.Y, nmax.Y);
+
+ if (!noise) {
+ int sx = nmax.X - nmin.X + 1;
+ int sz = nmax.Z - nmin.Z + 1;
+ noise = new Noise(&np, 0, sx, sz);
+ noise_puff_top = new Noise(&np_puff_top, 0, sx, sz);
+ noise_puff_bottom = new Noise(&np_puff_bottom, 0, sx, sz);
+ }
+
+ noise->seed = mapseed + y_start;
+ noise->perlinMap2D(nmin.X, nmin.Z);
+ bool noise_generated = false;
+
+ size_t index = 0;
+ for (int z = nmin.Z; z <= nmax.Z; z++)
+ for (int x = nmin.X; x <= nmax.X; x++, index++) {
+ float noiseval = noise->result[index];
+ if (noiseval < nthresh)
+ continue;
+
+ if (biomemap && !biomes.empty()) {
+ std::set<u8>::iterator it = biomes.find(biomemap[index]);
+ if (it == biomes.end())
+ continue;
+ }
+
+ if (!noise_generated) {
+ noise_generated = true;
+ noise_puff_top->perlinMap2D(nmin.X, nmin.Z);
+ noise_puff_bottom->perlinMap2D(nmin.X, nmin.Z);
+ }
+
+ float ntop = noise_puff_top->result[index];
+ float nbottom = noise_puff_bottom->result[index];
+
+ if (!(flags & OREFLAG_PUFF_CLIFFS)) {
+ float ndiff = noiseval - nthresh;
+ if (ndiff < 1.0f) {
+ ntop *= ndiff;
+ nbottom *= ndiff;
+ }
+ }
+
+ int ymid = y_start;
+ int y0 = ymid - nbottom;
+ int y1 = ymid + ntop;
+
+ if ((flags & OREFLAG_PUFF_ADDITIVE) && (y0 > y1))
+ SWAP(int, y0, y1);
+
+ for (int y = y0; y <= y1; y++) {
+ 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;
+
+ vm->m_data[i] = n_ore;
+ }
+ }
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+
+
void OreBlob::generate(MMVManip *vm, int mapseed, u32 blockseed,
v3s16 nmin, v3s16 nmax, u8 *biomemap)
{
- PseudoRandom pr(blockseed + 2404);
+ PcgRandom pr(blockseed + 2404);
MapNode n_ore(c_ore, 0, ore_param2);
u32 sizex = (nmax.X - nmin.X + 1);
@@ -266,9 +363,9 @@ void OreBlob::generate(MMVManip *vm, int mapseed, u32 blockseed,
float noiseval = noise->result[index];
- float xdist = x1 - csize / 2;
- float ydist = y1 - csize / 2;
- float zdist = z1 - csize / 2;
+ float xdist = (s32)x1 - (s32)csize / 2;
+ float ydist = (s32)y1 - (s32)csize / 2;
+ float zdist = (s32)z1 - (s32)csize / 2;
noiseval -= (sqrt(xdist * xdist + ydist * ydist + zdist * zdist) / csize);
@@ -283,7 +380,8 @@ void OreBlob::generate(MMVManip *vm, int mapseed, u32 blockseed,
///////////////////////////////////////////////////////////////////////////////
-OreVein::OreVein()
+OreVein::OreVein() :
+ Ore()
{
noise2 = NULL;
}
@@ -298,7 +396,7 @@ OreVein::~OreVein()
void OreVein::generate(MMVManip *vm, int mapseed, u32 blockseed,
v3s16 nmin, v3s16 nmax, u8 *biomemap)
{
- PseudoRandom pr(blockseed + 520);
+ PcgRandom pr(blockseed + 520);
MapNode n_ore(c_ore, 0, ore_param2);
u32 sizex = (nmax.X - nmin.X + 1);
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-19 18:44:06 +0000