Add singlenode mapgen; generates solely the node 'mapgen_singlenode', defaults to air
[oweals/minetest.git] / src / mapgen_singlenode.cpp
1 /*
2 Minetest
3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 GNU Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18 */
19
20 #include "mapgen_singlenode.h"
21 #include "voxel.h"
22 #include "mapblock.h"
23 #include "mapnode.h"
24 #include "map.h"
25 #include "nodedef.h"
26 #include "voxelalgorithms.h"
27 #include "profiler.h"
28 #include "settings.h" // For g_settings
29 #include "main.h" // For g_profiler
30 #include "emerge.h"
31
32 //////////////////////// Mapgen Singlenode parameter read/write
33
34 bool MapgenSinglenodeParams::readParams(Settings *settings) {
35         return true;
36 }
37
38
39 void MapgenSinglenodeParams::writeParams(Settings *settings) {
40 }
41
42 ///////////////////////////////////////////////////////////////////////////////
43
44 MapgenSinglenode::MapgenSinglenode(int mapgenid, MapgenSinglenodeParams *params) {
45 }
46
47
48 MapgenSinglenode::~MapgenSinglenode() {
49 }
50
51 //////////////////////// Map generator
52
53 void MapgenSinglenode::makeChunk(BlockMakeData *data) {
54         assert(data->vmanip);
55         assert(data->nodedef);
56         assert(data->blockpos_requested.X >= data->blockpos_min.X &&
57                    data->blockpos_requested.Y >= data->blockpos_min.Y &&
58                    data->blockpos_requested.Z >= data->blockpos_min.Z);
59         assert(data->blockpos_requested.X <= data->blockpos_max.X &&
60                    data->blockpos_requested.Y <= data->blockpos_max.Y &&
61                    data->blockpos_requested.Z <= data->blockpos_max.Z);
62
63         this->generating = true;
64         this->vm   = data->vmanip;      
65         this->ndef = data->nodedef;
66                         
67         v3s16 blockpos_min = data->blockpos_min;
68         v3s16 blockpos_max = data->blockpos_max;
69
70         // Area of central chunk
71         v3s16 node_min = blockpos_min*MAP_BLOCKSIZE;
72         v3s16 node_max = (blockpos_max+v3s16(1,1,1))*MAP_BLOCKSIZE-v3s16(1,1,1);
73
74         content_t c_node = ndef->getId("mapgen_singlenode");
75         if(c_node == CONTENT_IGNORE)
76                 c_node = CONTENT_AIR;
77         for(s16 z=node_min.Z; z<=node_max.Z; z++)
78         for(s16 y=node_min.Y; y<=node_max.Y; y++)
79         for(s16 x=node_min.X; x<=node_max.X; x++)
80         {
81                 data->vmanip->setNode(v3s16(x,y,z), MapNode(c_node));
82         }
83
84         // Add top and bottom side of water to transforming_liquid queue
85         updateLiquid(&data->transforming_liquid, node_min, node_max);
86
87         // Calculate lighting
88         calcLighting(node_min, node_max);
89         
90         this->generating = false;
91 }
92
93 int MapgenSinglenode::getGroundLevelAtPoint(v2s16 p) {
94         return 0;
95 }
96