Add singlenode mapgen; generates solely the node 'mapgen_singlenode', defaults to air

1 files changed, 96 insertions, 0 deletions

diff --git a/src/mapgen_singlenode.cpp b/src/mapgen_singlenode.cpp
new file mode 100644
index 000000000..04bf02bd1
--- /dev/null
+++ b/src/mapgen_singlenode.cpp
@@ -0,0 +1,96 @@
+/*
+Minetest
+Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+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 "profiler.h"
+#include "settings.h" // For g_settings
+#include "main.h" // For g_profiler
+#include "emerge.h"
+
+//////////////////////// Mapgen Singlenode parameter read/write
+
+bool MapgenSinglenodeParams::readParams(Settings *settings) {
+	return true;
+}
+
+
+void MapgenSinglenodeParams::writeParams(Settings *settings) {
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+MapgenSinglenode::MapgenSinglenode(int mapgenid, MapgenSinglenodeParams *params) {
+}
+
+
+MapgenSinglenode::~MapgenSinglenode() {
+}
+
+//////////////////////// Map generator
+
+void MapgenSinglenode::makeChunk(BlockMakeData *data) {
+	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);
+
+	content_t c_node = ndef->getId("mapgen_singlenode");
+	if(c_node == CONTENT_IGNORE)
+		c_node = CONTENT_AIR;
+	for(s16 z=node_min.Z; z<=node_max.Z; z++)
+	for(s16 y=node_min.Y; y<=node_max.Y; y++)
+	for(s16 x=node_min.X; x<=node_max.X; x++)
+	{
+		data->vmanip->setNode(v3s16(x,y,z), MapNode(c_node));
+	}
+
+	// Add top and bottom side of water to transforming_liquid queue
+	updateLiquid(&data->transforming_liquid, node_min, node_max);
+
+	// Calculate lighting
+	calcLighting(node_min, node_max);
+	
+	this->generating = false;
+}
+
+int MapgenSinglenode::getGroundLevelAtPoint(v2s16 p) {
+	return 0;
+}
+