/*
Minetest
-Copyright (C) 2010-2014 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
+Copyright (C) 2014-2016 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
+Copyright (C) 2015-2017 paramat
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
#include "mg_ore.h"
#include "mapgen.h"
#include "noise.h"
-#include "util/numeric.h"
#include "map.h"
#include "log.h"
+#include <algorithm>
+
FlagDesc flagdesc_ore[] = {
- {"absheight", OREFLAG_ABSHEIGHT},
- {NULL, 0}
+ {"absheight", OREFLAG_ABSHEIGHT}, // Non-functional
+ {"puff_cliffs", OREFLAG_PUFF_CLIFFS},
+ {"puff_additive_composition", OREFLAG_PUFF_ADDITIVE},
+ {NULL, 0}
};
}
-size_t OreManager::placeAllOres(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
+size_t OreManager::placeAllOres(Mapgen *mg, u32 blockseed,
+ v3s16 nmin, v3s16 nmax, s16 ore_zero_level)
{
size_t nplaced = 0;
if (!ore)
continue;
- nplaced += ore->placeOre(mg, blockseed, nmin, nmax);
+ nplaced += ore->placeOre(mg, blockseed, nmin, nmax, ore_zero_level);
blockseed++;
}
///////////////////////////////////////////////////////////////////////////////
-
-Ore::Ore()
-{
- flags = 0;
- noise = NULL;
-}
-
-
Ore::~Ore()
{
delete noise;
}
-size_t Ore::placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
+size_t Ore::placeOre(Mapgen *mg, u32 blockseed,
+ v3s16 nmin, v3s16 nmax, s16 ore_zero_level)
{
- int in_range = 0;
+ // Ore y_min / y_max is displaced by ore_zero_level or remains unchanged.
+ // Any ore with a limit at +-MAX_MAP_GENERATION_LIMIT is considered to have
+ // that limit at +-infinity, so we do not alter that limit.
+ s32 y_min_disp = (y_min <= -MAX_MAP_GENERATION_LIMIT) ?
+ -MAX_MAP_GENERATION_LIMIT : y_min + ore_zero_level;
+
+ s32 y_max_disp = (y_max >= MAX_MAP_GENERATION_LIMIT) ?
+ MAX_MAP_GENERATION_LIMIT : y_max + ore_zero_level;
- in_range |= (nmin.Y <= y_max && nmax.Y >= y_min);
- if (flags & OREFLAG_ABSHEIGHT)
- in_range |= (nmin.Y >= -y_max && nmax.Y <= -y_min) << 1;
- if (!in_range)
+ if (nmin.Y > y_max_disp || nmax.Y < y_min_disp)
return 0;
- int actual_ymin, actual_ymax;
- if (in_range & ORE_RANGE_MIRROR) {
- actual_ymin = MYMAX(nmin.Y, -y_max);
- actual_ymax = MYMIN(nmax.Y, -y_min);
- } else {
- actual_ymin = MYMAX(nmin.Y, y_min);
- actual_ymax = MYMIN(nmax.Y, y_max);
- }
+ int actual_ymin = MYMAX(nmin.Y, y_min_disp);
+ int actual_ymax = MYMIN(nmax.Y, y_max_disp);
if (clust_size >= actual_ymax - actual_ymin + 1)
return 0;
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);
if (biomemap && !biomes.empty()) {
u32 index = sizex * (z0 - nmin.Z) + (x0 - nmin.X);
- std::set<u8>::iterator it = biomes.find(biomemap[index]);
+ std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[index]);
if (it == biomes.end())
continue;
}
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);
u16 max_height = column_height_max;
- int y_start = pr.range(nmin.Y + max_height, nmax.Y - max_height);
+ 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;
continue;
if (biomemap && !biomes.empty()) {
- std::set<u8>::iterator it = biomes.find(biomemap[index]);
+ std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[index]);
if (it == biomes.end())
continue;
}
u16 height = pr.range(column_height_min, column_height_max);
int ymidpoint = y_start + noiseval;
- int y0 = ymidpoint - height * (1 - column_midpoint_factor);
- int y1 = y0 + height;
+ 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++) {
+ for (int y = y0; y <= y1; y++) {
u32 i = vm->m_area.index(x, y, z);
if (!vm->m_area.contains(i))
continue;
///////////////////////////////////////////////////////////////////////////////
+OrePuff::OrePuff() :
+ Ore()
+{
+}
+
+
+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::unordered_set<u8>::const_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);
if (biomemap && !biomes.empty()) {
u32 bmapidx = sizex * (z0 - nmin.Z) + (x0 - nmin.X);
- std::set<u8>::iterator it = biomes.find(biomemap[bmapidx]);
+ std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[bmapidx]);
if (it == biomes.end())
continue;
}
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);
///////////////////////////////////////////////////////////////////////////////
-OreVein::OreVein()
+OreVein::OreVein() :
+ Ore()
{
- noise2 = NULL;
}
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);
if (biomemap && !biomes.empty()) {
u32 bmapidx = sizex * (z - nmin.Z) + (x - nmin.X);
- std::set<u8>::iterator it = biomes.find(biomemap[bmapidx]);
+ std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[bmapidx]);
if (it == biomes.end())
continue;
}
projects / minetest.git / blobdiff