/*
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},
+ {"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;
- 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)
+ s32 y_max_disp = (y_max >= MAX_MAP_GENERATION_LIMIT) ?
+ MAX_MAP_GENERATION_LIMIT : y_max + ore_zero_level;
+
+ 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;
if (biomemap && !biomes.empty()) {
u32 index = sizex * (z0 - nmin.Z) + (x0 - nmin.X);
- UNORDERED_SET<u8>::iterator it = biomes.find(biomemap[index]);
+ std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[index]);
if (it == biomes.end())
continue;
}
continue;
if (biomemap && !biomes.empty()) {
- UNORDERED_SET<u8>::iterator it = biomes.find(biomemap[index]);
+ std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[index]);
if (it == biomes.end())
continue;
}
OrePuff::OrePuff() :
Ore()
{
- noise_puff_top = NULL;
- noise_puff_bottom = NULL;
}
continue;
if (biomemap && !biomes.empty()) {
- UNORDERED_SET<u8>::iterator it = biomes.find(biomemap[index]);
+ std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[index]);
if (it == biomes.end())
continue;
}
if (biomemap && !biomes.empty()) {
u32 bmapidx = sizex * (z0 - nmin.Z) + (x0 - nmin.X);
- UNORDERED_SET<u8>::iterator it = biomes.find(biomemap[bmapidx]);
+ std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[bmapidx]);
if (it == biomes.end())
continue;
}
OreVein::OreVein() :
Ore()
{
- noise2 = NULL;
}
if (biomemap && !biomes.empty()) {
u32 bmapidx = sizex * (z - nmin.Z) + (x - nmin.X);
- UNORDERED_SET<u8>::iterator it = biomes.find(biomemap[bmapidx]);
+ std::unordered_set<u8>::const_iterator it = biomes.find(biomemap[bmapidx]);
if (it == biomes.end())
continue;
}