1 files changed, 102 insertions, 0 deletions
diff --git a/src/mapgen/mapgen_singlenode.cpp b/src/mapgen/mapgen_singlenode.cpp
new file mode 100644
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+++ b/src/mapgen/mapgen_singlenode.cpp
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+/*
+Minetest
+Copyright (C) 2013-2015 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2013-2016 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
+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 "mapgen_singlenode.h"
+#include "voxel.h"
+#include "mapblock.h"
+#include "mapnode.h"
+#include "map.h"
+#include "nodedef.h"
+#include "voxelalgorithms.h"
+#include "emerge.h"
+
+
+MapgenSinglenode::MapgenSinglenode(int mapgenid,
+	MapgenParams *params, EmergeManager *emerge)
+	: Mapgen(mapgenid, params, emerge)
+{
+	flags = params->flags;
+
+	INodeDefManager *ndef = emerge->ndef;
+
+	c_node = ndef->getId("mapgen_singlenode");
+	if (c_node == CONTENT_IGNORE)
+		c_node = CONTENT_AIR;
+
+	MapNode n_node(c_node);
+	set_light = (ndef->get(n_node).sunlight_propagates) ? LIGHT_SUN : 0x00;
+}
+
+
+//////////////////////// Map generator
+
+void MapgenSinglenode::makeChunk(BlockMakeData *data)
+{
+	// Pre-conditions
+	assert(data->vmanip);
+	assert(data->nodedef);
+	assert(data->blockpos_requested.X >= data->blockpos_min.X &&
+		data->blockpos_requested.Y >= data->blockpos_min.Y &&
+		data->blockpos_requested.Z >= data->blockpos_min.Z);
+	assert(data->blockpos_requested.X <= data->blockpos_max.X &&
+		data->blockpos_requested.Y <= data->blockpos_max.Y &&
+		data->blockpos_requested.Z <= data->blockpos_max.Z);
+
+	this->generating = true;
+	this->vm   = data->vmanip;
+	this->ndef = data->nodedef;
+
+	v3s16 blockpos_min = data->blockpos_min;
+	v3s16 blockpos_max = data->blockpos_max;
+
+	// Area of central chunk
+	v3s16 node_min = blockpos_min * MAP_BLOCKSIZE;
+	v3s16 node_max = (blockpos_max + v3s16(1, 1, 1)) * MAP_BLOCKSIZE - v3s16(1, 1, 1);
+
+	blockseed = getBlockSeed2(node_min, data->seed);
+
+	MapNode n_node(c_node);
+
+	for (s16 z = node_min.Z; z <= node_max.Z; z++)
+	for (s16 y = node_min.Y; y <= node_max.Y; y++) {
+		u32 i = vm->m_area.index(node_min.X, y, z);
+		for (s16 x = node_min.X; x <= node_max.X; x++) {
+			if (vm->m_data[i].getContent() == CONTENT_IGNORE)
+				vm->m_data[i] = n_node;
+			i++;
+		}
+	}
+
+	// Add top and bottom side of water to transforming_liquid queue
+	updateLiquid(&data->transforming_liquid, node_min, node_max);
+
+	// Set lighting
+	if ((flags & MG_LIGHT) && set_light == LIGHT_SUN)
+		setLighting(LIGHT_SUN, node_min, node_max);
+
+	this->generating = false;
+}
+
+
+int MapgenSinglenode::getSpawnLevelAtPoint(v2s16 p)
+{
+	return 0;
+}