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	Advtrains mod for minetest.	orwell

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Mode	Name	Size
-rw-r--r--	README.md	22097	logplain
-rw-r--r--	active_common.lua	5880	logplain
-rw-r--r--	atc_rail.lua	8100	logplain
-rw-r--r--	chatcmds.lua	5043	logplain
-rw-r--r--	environment.lua	10451	logplain
-rw-r--r--	init.lua	3161	logplain
-rw-r--r--	interrupt.lua	1428	logplain
-rw-r--r--	mod.conf	228	logplain
-rw-r--r--	operation_panel.lua	657	logplain
-rw-r--r--	p_display.lua	0	logplain
-rw-r--r--	passive_api.txt	720	logplain
-rw-r--r--	pcnaming.lua	2484	logplain
d---------	textures	93	logplain

generated by cgit v1.2.3 (git 2.39.1) at 2025-07-19 11:31:48 +0000

/*
Minetest
Copyright (C) 2010-2014 kwolekr, Ryan Kwolek <kwolekr@minetest.net>

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
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "mg_ore.h"
#include "mapgen.h"
#include "noise.h"
#include "util/numeric.h"
#include "map.h"
#include "log.h"

FlagDesc flagdesc_ore[] = {
	{"absheight",                 OREFLAG_ABSHEIGHT},
	{"puff_cliffs",               OREFLAG_PUFF_CLIFFS},
	{"puff_additive_composition", OREFLAG_PUFF_ADDITIVE},
	{NULL,                        0}
};


///////////////////////////////////////////////////////////////////////////////


OreManager::OreManager(IGameDef *gamedef) :
	ObjDefManager(gamedef, OBJDEF_ORE)
{
}


size_t OreManager::placeAllOres(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
{
	size_t nplaced = 0;

	for (size_t i = 0; i != m_objects.size(); i++) {
		Ore *ore = (Ore *)m_objects[i];
		if (!ore)
			continue;

		nplaced += ore->placeOre(mg, blockseed, nmin, nmax);
		blockseed++;
	}

	return nplaced;
}


void OreManager::clear()
{
	for (size_t i = 0; i < m_objects.size(); i++) {
		Ore *ore = (Ore *)m_objects[i];
		delete ore;
	}
	m_objects.clear();
}


///////////////////////////////////////////////////////////////////////////////


Ore::Ore()
{
	flags = 0;
	noise = NULL;
}


Ore::~Ore()
{
	delete noise;
}


void Ore::resolveNodeNames()
{
	getIdFromNrBacklog(&c_ore, "", CONTENT_AIR);
	getIdsFromNrBacklog(&c_wherein);
}


size_t Ore::placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
{
	int in_range = 0;

	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)
		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);
	}
	if (clust_size >= actual_ymax - actual_ymin + 1)
		return 0;

	nmin.Y = actual_ymin;
	nmax.Y = actual_ymax;
	generate(mg->vm, mg->seed, blockseed, nmin, nmax, mg->biomemap);

	return 1;
}


///////////////////////////////////////////////////////////////////////////////


void OreScatter::generate(MMVManip *vm, int mapseed, u32 blockseed,
	v3s16 nmin, v3s16 nmax, u8 *biomemap)
{
	PcgRandom pr(blockseed);
	MapNode n_ore(c_ore, 0, ore_param2);

	u32 sizex  = (nmax.X - nmin.X + 1);
	u32 volume = (nmax.X - nmin.X + 1) *
				 (nmax.Y - nmin.Y + 1) *
				 (nmax.Z - nmin.Z + 1);
	u32 csize     = clust_size;
	u32 cvolume    = csize * csize * csize;
	u32 nclusters = volume / clust_scarcity;

	for (u32 i = 0; i != nclusters; i++) {
		int x0 = pr.range(nmin.X, nmax.X - csize + 1);
		int y0 = pr.range(nmin.Y, nmax.Y - csize + 1);
		int z0 = pr.range(nmin.Z, nmax.Z - csize + 1);

		if ((flags & OREFLAG_USE_NOISE) &&
			(NoisePerlin3D(&np, x0, y0, z0, mapseed) < nthresh))
			continue;

		if (biomemap && !biomes.empty()) {
			u32 index = sizex * (z0 - nmin.Z) + (x0 - nmin.X);
			UNORDERED_SET<u8>::iterator it = biomes.find(biomemap[index]);
			if (it == biomes.end())
				continue;
		}

		for (u32 z1 = 0; z1 != csize; z1++)