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Commit message (Collapse)AuthorAge
* Run updatepo.shest312016-08-30
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* Translated using Weblate (Portuguese)Bruno Borges2016-08-30
| | | | Currently translated at 64.9% (581 of 895 strings)
* Run updatepo.shest312016-07-12
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* Run updatepo.shest312016-05-05
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* Translated using Weblate (Portuguese)Fernando Reis2016-05-01
| | | | | | Currently translated at 67.5% (584 of 865 strings) This is a merger of 5 commits.
* Translated using Weblate (Portuguese)Fernando Reis2016-03-25
| | | | | | Currently translated at 34.5% (299 of 865 strings) This is a merger of 2 commits.
* Update po files, minetest.conf.example and settings_translation_file.cppest312016-02-27
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* Translated using Weblate (Portuguese)Ian giestas pauli2016-01-25
| | | | Currently translated at 23.6% (186 of 787 strings)
* Run util/updatepo.shest312015-11-08
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* Run updatepo.shest312015-10-24
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* Run updatepo.shest312015-09-12
| | | | | | After this, it should hopefully not record line numbers anymore, so the diffs of updatepo.sh runs are smaller. Well, this is theory, lets see how it will turn out to be in practice.
* Run updatepo.shest312015-07-17
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* Revert "Update Russian translation"Kahrl2014-12-13
| | | | | | | | This reverts commit e4e4324a30d6bcac5cc06c74e955e4941b14bd38. Conflicts: po/minetest.pot po/*/minetest.po
* Update po filesShadowNinja2014-12-12
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* Translated using Weblate (Portuguese)João Farias2014-02-16
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* Run updatepo.shPilzAdam2013-11-23
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* Run updatepo.shIlya Zhuravlev2013-09-08
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* Translated using Weblate (Portuguese)Leonardo Costa2013-09-07
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* Run util/updatepo.shPilzAdam2013-08-25
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* Fix i18n of some strings.arsdragonfly2013-07-02
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* Translated using Weblate (Portuguese)v c2013-06-01
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* Translated using Weblate (Portuguese)manuel joaquim2013-05-30
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* Translated using Weblate (Portuguese)manuel duarte2013-05-29
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* Translated using Weblate (Portuguese)manuel duarte2013-05-29
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* Update po filesPilzAdam2013-05-13
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* Translated using Weblate (Portuguese)Francizca Rodriguez2013-04-18
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* Translated using Weblate (Portuguese)Dêivan Ortiz Munhoz2013-04-03
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* Update po filesPilzAdam2013-03-30
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* Translated using Weblate (Portuguese)Francizca Rodriguez2013-02-28
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* Translated using Weblate (Portuguese)Pilz Adam2013-02-10
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* Translated using Weblate (Portuguese)Francizca Rodriguez2013-02-08
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* Translated using Weblate (Portuguese)Francizca Rodriguez2013-02-07
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* Translated using Weblate (Portuguese)Pilz Adam2013-02-07
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* Translated using Weblate (Portuguese)Francizca Rodriguez2013-02-07
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* Translated using Weblate (Portuguese)Pilz Adam2013-02-07
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* Translated using Weblate (Portuguese)Francizca Rodriguez2013-02-07
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* Translated using Weblate (Portuguese)Pilz Adam2013-02-07
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* Translated using Weblate (Portuguese)Francizca Rodriguez2013-02-07
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* Add Chinese Simplified & Portuguese.Ilya Zhuravlev2013-02-02
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-03 13:32:24 +0000
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/*
Minetest-c55
Copyright (C) 2010-2011 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 "content_mapblock.h"

#include "main.h" // For g_settings
#include "mapblock_mesh.h" // For MapBlock_LightColor() and MeshCollector
#include "settings.h"
#include "nodedef.h"
#include "tile.h"
#include "gamedef.h"
#include "util/numeric.h"
#include "util/serialize.h"
#include "util/directiontables.h"

// Create a cuboid.
//  collector - the MeshCollector for the resulting polygons
//  box       - the position and size of the box
//  tiles     - the tiles (materials) to use (for all 6 faces)
//  tilecount - number of entries in tiles, 1<=tilecount<=6
//  c         - vertex colour - used for all
//  txc       - texture coordinates - this is a list of texture coordinates
//              for the opposite corners of each face - therefore, there
//              should be (2+2)*6=24 values in the list. Alternatively, pass
//              NULL to use the entire texture for each face. The order of
//              the faces in the list is up-down-right-left-back-front
//              (compatible with ContentFeatures). If you specified 0,0,1,1
//              for each face, that would be the same as passing NULL.
void makeCuboid(MeshCollector *collector, const aabb3f &box,
	const TileSpec *tiles, int tilecount,
	video::SColor &c, const f32* txc)
{
	assert(tilecount >= 1 && tilecount <= 6);

	v3f min = box.MinEdge;
	v3f max = box.MaxEdge;

	if(txc == NULL)
	{
		static const f32 txc_default[24] = {
			0,0,1,1,
			0,0,1,1,
			0,0,1,1,
			0,0,1,1,
			0,0,1,1,
			0,0,1,1
		};
		txc = txc_default;
	}

	video::S3DVertex vertices[24] =
	{
		// up
		video::S3DVertex(min.X,max.Y,max.Z, 0,1,0, c, txc[0],txc[1]),
		video::S3DVertex(max.X,max.Y,max.Z, 0,1,0, c, txc[2],txc[1]),
		video::S3DVertex(max.X,max.Y,min.Z, 0,1,0, c, txc[2],txc[3]),
		video::S3DVertex(min.X,max.Y,min.Z, 0,1,0, c, txc[0],txc[3]),
		// down
		video::S3DVertex(min.X,min.Y,min.Z, 0,-1,0, c, txc[4],txc[5]),
		video::S3DVertex(max.X,min.Y,min.Z, 0,-1,0, c, txc[6],txc[5]),
		video::S3DVertex(max.X,min.Y,max.Z, 0,-1,0, c, txc[6],txc[7]),
		video::S3DVertex(min.X,min.Y,max.Z, 0,-1,0, c, txc[4],txc[7]),
		// right
		video::S3DVertex(max.X,max.Y,min.Z, 1,0,0, c, txc[ 8],txc[9]),
		video::S3DVertex(max.X,max.Y,max.Z, 1,0,0, c, txc[10],txc[9]),
		video::S3DVertex(max.X,min.Y,max.Z, 1,0,0, c, txc[10],txc[11]),
		video::S3DVertex(max.X,min.Y,min.Z, 1,0,0, c, txc[ 8],txc[11]),
		// left
		video::S3DVertex(min.X,max.Y,max.Z, -1,0,0, c, txc[12],txc[13]),
		video::S3DVertex(min.X,max.Y,min.Z, -1,0,0, c, txc[14],txc[13]),
		video::S3DVertex(min.X,min.Y,min.Z, -1,0,0, c, txc[14],txc[15]),
		video::S3DVertex(min.X,min.Y,max.Z, -1,0,0, c, txc[12],txc[15]),
		// back
		video::S3DVertex(max.X,max.Y,max.Z, 0,0,1, c, txc[16],txc[17]),
		video::S3DVertex(min.X,max.Y,max.Z, 0,0,1, c, txc[18],txc[17]),
		video::S3DVertex(min.X,min.Y,max.Z, 0,0,1, c, txc[18],txc[19]),
		video::S3DVertex(max.X,min.Y,max.Z, 0,0,1, c, txc[16],txc[19]),
		// front
		video::S3DVertex(min.X,max.Y,min.Z, 0,0,-1, c, txc[20],txc[21]),
		video::S3DVertex(max.X,max.Y,min.Z, 0,0,-1, c, txc[22],txc[21]),
		video::S3DVertex(max.X,min.Y,min.Z, 0,0,-1, c, txc[22],txc[23]),
		video::S3DVertex(min.X,min.Y,min.Z, 0,0,-1, c, txc[20],txc[23]),
	};

	for(s32 j=0; j<24; j++)
	{
		int tileindex = MYMIN(j/4, tilecount-1);
		vertices[j].TCoords *= tiles[tileindex].texture.size;
		vertices[j].TCoords += tiles[tileindex].texture.pos;
	}

	u16 indices[] = {0,1,2,2,3,0};

	// Add to mesh collector
	for(s32 j=0; j<24; j+=4)
	{
		int tileindex = MYMIN(j/4, tilecount-1);
		collector->append(tiles[tileindex],
				vertices+j, 4, indices, 6);
	}
}

void mapblock_mesh_generate_special(MeshMakeData *data,
		MeshCollector &collector)
{
	INodeDefManager *nodedef = data->m_gamedef->ndef();

	// 0ms
	//TimeTaker timer("mapblock_mesh_generate_special()");

	/*
		Some settings
	*/
	bool new_style_water = g_settings->getBool("new_style_water");
	
	float node_liquid_level = 1.0;
	if(new_style_water)
		node_liquid_level = 0.85;
	
	v3s16 blockpos_nodes = data->m_blockpos*MAP_BLOCKSIZE;

	for(s16 z=0; z<MAP_BLOCKSIZE; z++)
	for(s16 y=0; y<MAP_BLOCKSIZE; y++)
	for(s16 x=0; x<MAP_BLOCKSIZE; x++)
	{
		v3s16 p(x,y,z);

		MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes+p);
		const ContentFeatures &f = nodedef->get(n);

		// Only solidness=0 stuff is drawn here
		if(f.solidness != 0)
			continue;
		
		switch(f.drawtype){
		default:
			infostream<<"Got "<<f.drawtype<<std::endl;
			assert(0);
			break;
		case NDT_AIRLIKE:
			break;
		case NDT_LIQUID:
		{
			/*
				Add water sources to mesh if using new style
			*/
			TileSpec tile_liquid = f.special_tiles[0];
			AtlasPointer &pa_liquid = tile_liquid.texture;

			bool top_is_air = false;
			MapNode n = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
			if(n.getContent() == CONTENT_AIR)
				top_is_air = true;
			
			if(top_is_air == false)
				continue;

			u16 l = getInteriorLight(n, 0, data);
			video::SColor c = MapBlock_LightColor(f.alpha, l);
			
			video::S3DVertex vertices[4] =
			{
				video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
						pa_liquid.x0(), pa_liquid.y1()),
				video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
						pa_liquid.x1(), pa_liquid.y1()),
				video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
						pa_liquid.x1(), pa_liquid.y0()),
				video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
						pa_liquid.x0(), pa_liquid.y0()),
			};

			v3f offset(p.X, p.Y + (-0.5+node_liquid_level)*BS, p.Z);
			for(s32 i=0; i<4; i++)
			{
				vertices[i].Pos += offset;
			}

			u16 indices[] = {0,1,2,2,3,0};
			// Add to mesh collector
			collector.append(tile_liquid, vertices, 4, indices, 6);
		break;}
		case NDT_FLOWINGLIQUID:
		{
			/*
				Add flowing liquid to mesh
			*/
			TileSpec tile_liquid = f.special_tiles[0];
			TileSpec tile_liquid_bfculled = f.special_tiles[1];
			AtlasPointer &pa_liquid = tile_liquid.texture;

			bool top_is_same_liquid = false;
			MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y+1,z));
			content_t c_flowing = nodedef->getId(f.liquid_alternative_flowing);
			content_t c_source = nodedef->getId(f.liquid_alternative_source);
			if(ntop.getContent() == c_flowing || ntop.getContent() == c_source)
				top_is_same_liquid = true;
			
			u16 l = 0;
			// If this liquid emits light and doesn't contain light, draw
			// it at what it emits, for an increased effect
			u8 light_source = nodedef->get(n).light_source;
			if(light_source != 0){
				//l = decode_light(undiminish_light(light_source));
				l = decode_light(light_source);
				l = l | (l<<8);
			}
			// Use the light of the node on top if possible
			else if(nodedef->get(ntop).param_type == CPT_LIGHT)
				l = getInteriorLight(ntop, 0, data);
			// Otherwise use the light of this node (the liquid)
			else
				l = getInteriorLight(n, 0, data);
			video::SColor c = MapBlock_LightColor(f.alpha, l);
			
			// Neighbor liquid levels (key = relative position)
			// Includes current node
			core::map<v3s16, f32> neighbor_levels;
			core::map<v3s16, content_t> neighbor_contents;
			core::map<v3s16, u8> neighbor_flags;
			const u8 neighborflag_top_is_same_liquid = 0x01;
			v3s16 neighbor_dirs[9] = {
				v3s16(0,0,0),
				v3s16(0,0,1),
				v3s16(0,0,-1),
				v3s16(1,0,0),
				v3s16(-1,0,0),
				v3s16(1,0,1),
				v3s16(-1,0,-1),
				v3s16(1,0,-1),
				v3s16(-1,0,1),
			};
			for(u32 i=0; i<9; i++)
			{
				content_t content = CONTENT_AIR;
				float level = -0.5 * BS;
				u8 flags = 0;
				// Check neighbor
				v3s16 p2 = p + neighbor_dirs[i];
				MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
				if(n2.getContent() != CONTENT_IGNORE)
				{
					content = n2.getContent();

					if(n2.getContent() == c_source)
						level = (-0.5+node_liquid_level) * BS;
					else if(n2.getContent() == c_flowing)
						level = (-0.5 + ((float)(n2.param2&LIQUID_LEVEL_MASK)
								+ 0.5) / 8.0 * node_liquid_level) * BS;

					// Check node above neighbor.
					// NOTE: This doesn't get executed if neighbor
					//       doesn't exist
					p2.Y += 1;
					n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
					if(n2.getContent() == c_source ||
							n2.getContent() == c_flowing)
						flags |= neighborflag_top_is_same_liquid;
				}
				
				neighbor_levels.insert(neighbor_dirs[i], level);
				neighbor_contents.insert(neighbor_dirs[i], content);
				neighbor_flags.insert(neighbor_dirs[i], flags);
			}

			// Corner heights (average between four liquids)
			f32 corner_levels[4];
			
			v3s16 halfdirs[4] = {
				v3s16(0,0,0),
				v3s16(1,0,0),
				v3s16(1,0,1),
				v3s16(0,0,1),
			};
			for(u32 i=0; i<4; i++)
			{
				v3s16 cornerdir = halfdirs[i];
				float cornerlevel = 0;
				u32 valid_count = 0;
				u32 air_count = 0;
				for(u32 j=0; j<4; j++)
				{
					v3s16 neighbordir = cornerdir - halfdirs[j];
					content_t content = neighbor_contents[neighbordir];
					// If top is liquid, draw starting from top of node
					if(neighbor_flags[neighbordir] &
							neighborflag_top_is_same_liquid)
					{
						cornerlevel = 0.5*BS;
						valid_count = 1;
						break;
					}
					// Source is always the same height
					else if(content == c_source)
					{
						cornerlevel = (-0.5+node_liquid_level)*BS;
						valid_count = 1;
						break;
					}
					// Flowing liquid has level information
					else if(content == c_flowing)
					{
						cornerlevel += neighbor_levels[neighbordir];
						valid_count++;
					}
					else if(content == CONTENT_AIR)
					{
						air_count++;
					}
				}
				if(air_count >= 2)
					cornerlevel = -0.5*BS;
				else if(valid_count > 0)
					cornerlevel /= valid_count;
				corner_levels[i] = cornerlevel;
			}

			/*
				Generate sides
			*/

			v3s16 side_dirs[4] = {
				v3s16(1,0,0),
				v3s16(-1,0,0),
				v3s16(0,0,1),
				v3s16(0,0,-1),
			};
			s16 side_corners[4][2] = {
				{1, 2},
				{3, 0},
				{2, 3},
				{0, 1},
			};
			for(u32 i=0; i<4; i++)
			{
				v3s16 dir = side_dirs[i];

				/*
					If our topside is liquid and neighbor's topside
					is liquid, don't draw side face
				*/
				if(top_is_same_liquid &&
						neighbor_flags[dir] & neighborflag_top_is_same_liquid)
					continue;

				content_t neighbor_content = neighbor_contents[dir];
				const ContentFeatures &n_feat = nodedef->get(neighbor_content);
				
				// Don't draw face if neighbor is blocking the view
				if(n_feat.solidness == 2)
					continue;
				
				bool neighbor_is_same_liquid = (neighbor_content == c_source
						|| neighbor_content == c_flowing);
				
				// Don't draw any faces if neighbor same is liquid and top is
				// same liquid
				if(neighbor_is_same_liquid == true
						&& top_is_same_liquid == false)
					continue;

				// Use backface culled material if neighbor doesn't have a
				// solidness of 0
				const TileSpec *current_tile = &tile_liquid;
				if(n_feat.solidness != 0 || n_feat.visual_solidness != 0)
					current_tile = &tile_liquid_bfculled;
				
				video::S3DVertex vertices[4] =
				{
					video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
							pa_liquid.x0(), pa_liquid.y1()),
					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
							pa_liquid.x1(), pa_liquid.y1()),
					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
							pa_liquid.x1(), pa_liquid.y0()),
					video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
							pa_liquid.x0(), pa_liquid.y0()),
				};
				
				/*
					If our topside is liquid, set upper border of face
					at upper border of node
				*/
				if(top_is_same_liquid)
				{
					vertices[2].Pos.Y = 0.5*BS;
					vertices[3].Pos.Y = 0.5*BS;
				}
				/*
					Otherwise upper position of face is corner levels
				*/
				else
				{
					vertices[2].Pos.Y = corner_levels[side_corners[i][0]];
					vertices[3].Pos.Y = corner_levels[side_corners[i][1]];
				}
				
				/*
					If neighbor is liquid, lower border of face is corner
					liquid levels
				*/
				if(neighbor_is_same_liquid)
				{
					vertices[0].Pos.Y = corner_levels[side_corners[i][1]];
					vertices[1].Pos.Y = corner_levels[side_corners[i][0]];
				}
				/*
					If neighbor is not liquid, lower border of face is
					lower border of node
				*/
				else
				{
					vertices[0].Pos.Y = -0.5*BS;
					vertices[1].Pos.Y = -0.5*BS;
				}
				
				for(s32 j=0; j<4; j++)
				{
					if(dir == v3s16(0,0,1))
						vertices[j].Pos.rotateXZBy(0);
					if(dir == v3s16(0,0,-1))
						vertices[j].Pos.rotateXZBy(180);
					if(dir == v3s16(-1,0,0))
						vertices[j].Pos.rotateXZBy(90);
					if(dir == v3s16(1,0,-0))
						vertices[j].Pos.rotateXZBy(-90);
						
					// Do this to not cause glitches when two liquids are
					// side-by-side
					/*if(neighbor_is_same_liquid == false){
						vertices[j].Pos.X *= 0.98;
						vertices[j].Pos.Z *= 0.98;
					}*/

					vertices[j].Pos += intToFloat(p, BS);
				}

				u16 indices[] = {0,1,2,2,3,0};
				// Add to mesh collector
				collector.append(*current_tile, vertices, 4, indices, 6);
			}
			
			/*
				Generate top side, if appropriate
			*/
			
			if(top_is_same_liquid == false)
			{
				video::S3DVertex vertices[4] =
				{
					video::S3DVertex(-BS/2,0,BS/2, 0,0,0, c,
							pa_liquid.x0(), pa_liquid.y1()),
					video::S3DVertex(BS/2,0,BS/2, 0,0,0, c,
							pa_liquid.x1(), pa_liquid.y1()),
					video::S3DVertex(BS/2,0,-BS/2, 0,0,0, c,
							pa_liquid.x1(), pa_liquid.y0()),
					video::S3DVertex(-BS/2,0,-BS/2, 0,0,0, c,
							pa_liquid.x0(), pa_liquid.y0()),
				};
				
				// To get backface culling right, the vertices need to go
				// clockwise around the front of the face. And we happened to
				// calculate corner levels in exact reverse order.
				s32 corner_resolve[4] = {3,2,1,0};

				for(s32 i=0; i<4; i++)
				{
					//vertices[i].Pos.Y += liquid_level;
					//vertices[i].Pos.Y += neighbor_levels[v3s16(0,0,0)];
					s32 j = corner_resolve[i];
					vertices[i].Pos.Y += corner_levels[j];
					vertices[i].Pos += intToFloat(p, BS);
				}
				
				// Default downwards-flowing texture animation goes from 
				// -Z towards +Z, thus the direction is +Z.
				// Rotate texture to make animation go in flow direction
				// Positive if liquid moves towards +Z
				int dz = (corner_levels[side_corners[3][0]] +
						corner_levels[side_corners[3][1]]) -
						(corner_levels[side_corners[2][0]] +
						corner_levels[side_corners[2][1]]);
				// Positive if liquid moves towards +X
				int dx = (corner_levels[side_corners[1][0]] +
						corner_levels[side_corners[1][1]]) -
						(corner_levels[side_corners[0][0]] +
						corner_levels[side_corners[0][1]]);
				// -X
				if(-dx >= abs(dz))
				{
					v2f t = vertices[0].TCoords;
					vertices[0].TCoords = vertices[1].TCoords;
					vertices[1].TCoords = vertices[2].TCoords;
					vertices[2].TCoords = vertices[3].TCoords;
					vertices[3].TCoords = t;
				}
				// +X
				if(dx >= abs(dz))
				{
					v2f t = vertices[0].TCoords;
					vertices[0].TCoords = vertices[3].TCoords;
					vertices[3].TCoords = vertices[2].TCoords;
					vertices[2].TCoords = vertices[1].TCoords;
					vertices[1].TCoords = t;
				}
				// -Z
				if(-dz >= abs(dx))
				{
					v2f t = vertices[0].TCoords;
					vertices[0].TCoords = vertices[3].TCoords;
					vertices[3].TCoords = vertices[2].TCoords;
					vertices[2].TCoords = vertices[1].TCoords;
					vertices[1].TCoords = t;
					t = vertices[0].TCoords;
					vertices[0].TCoords = vertices[3].TCoords;
					vertices[3].TCoords = vertices[2].TCoords;
					vertices[2].TCoords = vertices[1].TCoords;
					vertices[1].TCoords = t;
				}

				u16 indices[] = {0,1,2,2,3,0};
				// Add to mesh collector
				collector.append(tile_liquid, vertices, 4, indices, 6);
			}
		break;}
		case NDT_GLASSLIKE:
		{
			TileSpec tile = getNodeTile(n, p, v3s16(0,0,0), data);
			AtlasPointer ap = tile.texture;

			u16 l = getInteriorLight(n, 1, data);
			video::SColor c = MapBlock_LightColor(255, l);

			for(u32 j=0; j<6; j++)
			{
				// Check this neighbor
				v3s16 n2p = blockpos_nodes + p + g_6dirs[j];
				MapNode n2 = data->m_vmanip.getNodeNoEx(n2p);
				// Don't make face if neighbor is of same type
				if(n2.getContent() == n.getContent())
					continue;

				// The face at Z+
				video::S3DVertex vertices[4] =
				{
					video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c,
						ap.x0(), ap.y1()),
					video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c,
						ap.x1(), ap.y1()),
					video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c,
						ap.x1(), ap.y0()),
					video::S3DVertex(-BS/2,BS/2,BS/2, 0,0,0, c,
						ap.x0(), ap.y0()),
				};
				
				// Rotations in the g_6dirs format
				if(j == 0) // Z+
					for(u16 i=0; i<4; i++)
						vertices[i].Pos.rotateXZBy(0);
				else if(j == 1) // Y+
					for(u16 i=0; i<4; i++)
						vertices[i].Pos.rotateYZBy(-90);
				else if(j == 2) // X+
					for(u16 i=0; i<4; i++)
						vertices[i].Pos.rotateXZBy(-90);
				else if(j == 3) // Z-
					for(u16 i=0; i<4; i++)
						vertices[i].Pos.rotateXZBy(180);
				else if(j == 4) // Y-
					for(u16 i=0; i<4; i++)
						vertices[i].Pos.rotateYZBy(90);
				else if(j == 5) // X-
					for(u16 i=0; i<4; i++)
						vertices[i].Pos.rotateXZBy(90);

				for(u16 i=0; i<4; i++){
					vertices[i].Pos += intToFloat(p, BS);
				}

				u16 indices[] = {0,1,2,2,3,0};
				// Add to mesh collector
				collector.append(tile, vertices, 4, indices, 6);
			}
		break;}
		case NDT_ALLFACES:
		{
			TileSpec tile_leaves = getNodeTile(n, p,
					v3s16(0,0,0), data);
			AtlasPointer pa_leaves = tile_leaves.texture;

			u16 l = getInteriorLight(n, 1, data);
			video::SColor c = MapBlock_LightColor(255, l);

			v3f pos = intToFloat(p, BS);
			aabb3f box(-BS/2,-BS/2,-BS/2,BS/2,BS/2,BS/2);
			box.MinEdge += pos;
			box.MaxEdge += pos;
			makeCuboid(&collector, box, &tile_leaves, 1, c, NULL);
		break;}
		case NDT_ALLFACES_OPTIONAL:
			// This is always pre-converted to something else
			assert(0);
			break;
		case NDT_TORCHLIKE:
		{
			v3s16 dir = n.getWallMountedDir(nodedef);
			
			u8 tileindex = 0;
			if(dir == v3s16(0,-1,0)){
				tileindex = 0; // floor
			} else if(dir == v3s16(0,1,0)){
				tileindex = 1; // ceiling
			// For backwards compatibility
			} else if(dir == v3s16(0,0,0)){
				tileindex = 0; // floor
			} else {
				tileindex = 2; // side
			}

			TileSpec tile = getNodeTileN(n, p, tileindex, data);
			tile.material_flags &= ~MATERIAL_FLAG_BACKFACE_CULLING;
			tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;

			AtlasPointer ap = tile.texture;

			video::SColor c(255,255,255,255);

			// Wall at X+ of node
			video::S3DVertex vertices[4] =
			{
				video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
						ap.x0(), ap.y1()),
				video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
						ap.x1(), ap.y1()),
				video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
						ap.x1(), ap.y0()),
				video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
						ap.x0(), ap.y0()),
			};

			for(s32 i=0; i<4; i++)
			{
				if(dir == v3s16(1,0,0))
					vertices[i].Pos.rotateXZBy(0);
				if(dir == v3s16(-1,0,0))
					vertices[i].Pos.rotateXZBy(180);
				if(dir == v3s16(0,0,1))
					vertices[i].Pos.rotateXZBy(90);
				if(dir == v3s16(0,0,-1))
					vertices[i].Pos.rotateXZBy(-90);
				if(dir == v3s16(0,-1,0))
					vertices[i].Pos.rotateXZBy(45);
				if(dir == v3s16(0,1,0))
					vertices[i].Pos.rotateXZBy(-45);

				vertices[i].Pos += intToFloat(p, BS);
			}

			u16 indices[] = {0,1,2,2,3,0};
			// Add to mesh collector
			collector.append(tile, vertices, 4, indices, 6);
		break;}
		case NDT_SIGNLIKE:
		{
			TileSpec tile = getNodeTileN(n, p, 0, data);
			tile.material_flags &= ~MATERIAL_FLAG_BACKFACE_CULLING;
			tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
			AtlasPointer ap = tile.texture;

			u16 l = getInteriorLight(n, 0, data);
			video::SColor c = MapBlock_LightColor(255, l);
				
			float d = (float)BS/16;
			// Wall at X+ of node
			video::S3DVertex vertices[4] =
			{
				video::S3DVertex(BS/2-d,BS/2,BS/2, 0,0,0, c,
						ap.x0(), ap.y0()),
				video::S3DVertex(BS/2-d,BS/2,-BS/2, 0,0,0, c,
						ap.x1(), ap.y0()),
				video::S3DVertex(BS/2-d,-BS/2,-BS/2, 0,0,0, c,
						ap.x1(), ap.y1()),
				video::S3DVertex(BS/2-d,-BS/2,BS/2, 0,0,0, c,
						ap.x0(), ap.y1()),
			};

			v3s16 dir = n.getWallMountedDir(nodedef);

			for(s32 i=0; i<4; i++)
			{
				if(dir == v3s16(1,0,0))
					vertices[i].Pos.rotateXZBy(0);
				if(dir == v3s16(-1,0,0))
					vertices[i].Pos.rotateXZBy(180);
				if(dir == v3s16(0,0,1))
					vertices[i].Pos.rotateXZBy(90);
				if(dir == v3s16(0,0,-1))
					vertices[i].Pos.rotateXZBy(-90);
				if(dir == v3s16(0,-1,0))
					vertices[i].Pos.rotateXYBy(-90);
				if(dir == v3s16(0,1,0))
					vertices[i].Pos.rotateXYBy(90);

				vertices[i].Pos += intToFloat(p, BS);
			}

			u16 indices[] = {0,1,2,2,3,0};
			// Add to mesh collector
			collector.append(tile, vertices, 4, indices, 6);
		break;}
		case NDT_PLANTLIKE:
		{
			TileSpec tile = getNodeTileN(n, p, 0, data);
			tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;
			AtlasPointer ap = tile.texture;
			
			u16 l = getInteriorLight(n, 1, data);
			video::SColor c = MapBlock_LightColor(255, l);

			for(u32 j=0; j<4; j++)
			{
				video::S3DVertex vertices[4] =
				{
					video::S3DVertex(-BS/2*f.visual_scale,-BS/2,0, 0,0,0, c,
						ap.x0(), ap.y1()),
					video::S3DVertex( BS/2*f.visual_scale,-BS/2,0, 0,0,0, c,
						ap.x1(), ap.y1()),
					video::S3DVertex( BS/2*f.visual_scale,
						-BS/2 + f.visual_scale*BS,0, 0,0,0, c,
						ap.x1(), ap.y0()),
					video::S3DVertex(-BS/2*f.visual_scale,
						-BS/2 + f.visual_scale*BS,0, 0,0,0, c,
						ap.x0(), ap.y0()),
				};

				if(j == 0)
				{
					for(u16 i=0; i<4; i++)
						vertices[i].Pos.rotateXZBy(45);
				}
				else if(j == 1)
				{
					for(u16 i=0; i<4; i++)
						vertices[i].Pos.rotateXZBy(-45);
				}
				else if(j == 2)
				{
					for(u16 i=0; i<4; i++)
						vertices[i].Pos.rotateXZBy(135);
				}
				else if(j == 3)
				{
					for(u16 i=0; i<4; i++)
						vertices[i].Pos.rotateXZBy(-135);
				}

				for(u16 i=0; i<4; i++)
				{
					vertices[i].Pos *= f.visual_scale;
					vertices[i].Pos += intToFloat(p, BS);
				}

				u16 indices[] = {0,1,2,2,3,0};
				// Add to mesh collector
				collector.append(tile, vertices, 4, indices, 6);
			}
		break;}
		case NDT_FENCELIKE:
		{
			TileSpec tile = getNodeTile(n, p, v3s16(0,0,0), data);
			TileSpec tile_nocrack = tile;
			tile_nocrack.material_flags &= ~MATERIAL_FLAG_CRACK;
			
			// A hack to put wood the right way around in the posts
			ITextureSource *tsrc = data->m_gamedef->tsrc();
			TileSpec tile_rot = tile;
			tile_rot.texture = tsrc->getTexture(tsrc->getTextureName(
					tile.texture.id) + "^[transformR90");
					
			u16 l = getInteriorLight(n, 1, data);
			video::SColor c = MapBlock_LightColor(255, l);

			const f32 post_rad=(f32)BS/8;
			const f32 bar_rad=(f32)BS/16;
			const f32 bar_len=(f32)(BS/2)-post_rad;

			v3f pos = intToFloat(p, BS);

			// The post - always present
			aabb3f post(-post_rad,-BS/2,-post_rad,post_rad,BS/2,post_rad);
			post.MinEdge += pos;
			post.MaxEdge += pos;
			f32 postuv[24]={
					6/16.,6/16.,10/16.,10/16.,
					6/16.,6/16.,10/16.,10/16.,
					0/16.,0,4/16.,1,
					4/16.,0,8/16.,1,
					8/16.,0,12/16.,1,
					12/16.,0,16/16.,1};
			makeCuboid(&collector, post, &tile_rot, 1, c, postuv);

			// Now a section of fence, +X, if there's a post there
			v3s16 p2 = p;
			p2.X++;
			MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
			const ContentFeatures *f2 = &nodedef->get(n2);
			if(f2->drawtype == NDT_FENCELIKE)
			{
				aabb3f bar(-bar_len+BS/2,-bar_rad+BS/4,-bar_rad,
						bar_len+BS/2,bar_rad+BS/4,bar_rad);
				bar.MinEdge += pos;
				bar.MaxEdge += pos;
				f32 xrailuv[24]={
					0/16.,2/16.,16/16.,4/16.,
					0/16.,4/16.,16/16.,6/16.,
					6/16.,6/16.,8/16.,8/16.,
					10/16.,10/16.,12/16.,12/16.,
					0/16.,8/16.,16/16.,10/16.,
					0/16.,14/16.,16/16.,16/16.};
				makeCuboid(&collector, bar, &tile_nocrack, 1,
						c, xrailuv);
				bar.MinEdge.Y -= BS/2;
				bar.MaxEdge.Y -= BS/2;
				makeCuboid(&collector, bar, &tile_nocrack, 1,
						c, xrailuv);
			}

			// Now a section of fence, +Z, if there's a post there
			p2 = p;
			p2.Z++;
			n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
			f2 = &nodedef->get(n2);
			if(f2->drawtype == NDT_FENCELIKE)
			{
				aabb3f bar(-bar_rad,-bar_rad+BS/4,-bar_len+BS/2,
						bar_rad,bar_rad+BS/4,bar_len+BS/2);
				bar.MinEdge += pos;
				bar.MaxEdge += pos;
				f32 zrailuv[24]={
					3/16.,1/16.,5/16.,5/16., // cannot rotate; stretch
					4/16.,1/16.,6/16.,5/16., // for wood texture instead
					0/16.,9/16.,16/16.,11/16.,
					0/16.,6/16.,16/16.,8/16.,
					6/16.,6/16.,8/16.,8/16.,
					10/16.,10/16.,12/16.,12/16.};
				makeCuboid(&collector, bar, &tile_nocrack, 1,
						c, zrailuv);
				bar.MinEdge.Y -= BS/2;
				bar.MaxEdge.Y -= BS/2;
				makeCuboid(&collector, bar, &tile_nocrack, 1,
						c, zrailuv);
			}
		break;}
		case NDT_RAILLIKE:
		{
			bool is_rail_x [] = { false, false };  /* x-1, x+1 */
			bool is_rail_z [] = { false, false };  /* z-1, z+1 */

			bool is_rail_z_minus_y [] = { false, false };  /* z-1, z+1; y-1 */
			bool is_rail_x_minus_y [] = { false, false };  /* x-1, z+1; y-1 */
			bool is_rail_z_plus_y [] = { false, false };  /* z-1, z+1; y+1 */
			bool is_rail_x_plus_y [] = { false, false };  /* x-1, x+1; y+1 */

			MapNode n_minus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1,y,z));
			MapNode n_plus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1,y,z));
			MapNode n_minus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z-1));
			MapNode n_plus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z+1));
			MapNode n_plus_x_plus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1, y+1, z));
			MapNode n_plus_x_minus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1, y-1, z));
			MapNode n_minus_x_plus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1, y+1, z));
			MapNode n_minus_x_minus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1, y-1, z));
			MapNode n_plus_z_plus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x, y+1, z+1));
			MapNode n_minus_z_plus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x, y+1, z-1));
			MapNode n_plus_z_minus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x, y-1, z+1));
			MapNode n_minus_z_minus_y = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x, y-1, z-1));
			
			content_t thiscontent = n.getContent();
			if(n_minus_x.getContent() == thiscontent)
				is_rail_x[0] = true;
			if (n_minus_x_minus_y.getContent() == thiscontent)
				is_rail_x_minus_y[0] = true;
			if(n_minus_x_plus_y.getContent() == thiscontent)
				is_rail_x_plus_y[0] = true;

			if(n_plus_x.getContent() == thiscontent)
				is_rail_x[1] = true;
			if (n_plus_x_minus_y.getContent() == thiscontent)
				is_rail_x_minus_y[1] = true;
			if(n_plus_x_plus_y.getContent() == thiscontent)
				is_rail_x_plus_y[1] = true;

			if(n_minus_z.getContent() == thiscontent)
				is_rail_z[0] = true;
			if (n_minus_z_minus_y.getContent() == thiscontent)
				is_rail_z_minus_y[0] = true;
			if(n_minus_z_plus_y.getContent() == thiscontent)
				is_rail_z_plus_y[0] = true;

			if(n_plus_z.getContent() == thiscontent)
				is_rail_z[1] = true;
			if (n_plus_z_minus_y.getContent() == thiscontent)
				is_rail_z_minus_y[1] = true;
			if(n_plus_z_plus_y.getContent() == thiscontent)
				is_rail_z_plus_y[1] = true;

			bool is_rail_x_all[] = {false, false};
			bool is_rail_z_all[] = {false, false};
			is_rail_x_all[0]=is_rail_x[0] || is_rail_x_minus_y[0] || is_rail_x_plus_y[0];
			is_rail_x_all[1]=is_rail_x[1] || is_rail_x_minus_y[1] || is_rail_x_plus_y[1];
			is_rail_z_all[0]=is_rail_z[0] || is_rail_z_minus_y[0] || is_rail_z_plus_y[0];
			is_rail_z_all[1]=is_rail_z[1] || is_rail_z_minus_y[1] || is_rail_z_plus_y[1];

			// reasonable default, flat straight unrotated rail
			bool is_straight = true;
			int adjacencies = 0;
			int angle = 0;
			u8 tileindex = 0;

			// check for sloped rail
			if (is_rail_x_plus_y[0] || is_rail_x_plus_y[1] || is_rail_z_plus_y[0] || is_rail_z_plus_y[1])
			{
				adjacencies = 5; //5 means sloped
				is_straight = true; // sloped is always straight
			}
			else
			{
				// is really straight, rails on both sides
				is_straight = (is_rail_x_all[0] && is_rail_x_all[1]) || (is_rail_z_all[0] && is_rail_z_all[1]);
				adjacencies = is_rail_x_all[0] + is_rail_x_all[1] + is_rail_z_all[0] + is_rail_z_all[1];
			}

			switch (adjacencies) {
			case 1:
				if(is_rail_x_all[0] || is_rail_x_all[1])
					angle = 90;
				break;
			case 2:
				if(!is_straight)
					tileindex = 1; // curved
				if(is_rail_x_all[0] && is_rail_x_all[1])
					angle = 90;
				if(is_rail_z_all[0] && is_rail_z_all[1]){
					if (n_minus_z_plus_y.getContent() == thiscontent) angle = 180;
				}
				else if(is_rail_x_all[0] && is_rail_z_all[0])
					angle = 270;
				else if(is_rail_x_all[0] && is_rail_z_all[1])
					angle = 180;
				else if(is_rail_x_all[1] && is_rail_z_all[1])
					angle = 90;
				break;
			case 3:
				// here is where the potential to 'switch' a junction is, but not implemented at present
				tileindex = 2; // t-junction
				if(!is_rail_x_all[1])
					angle=180;
				if(!is_rail_z_all[0])
					angle=90;
				if(!is_rail_z_all[1])
					angle=270;
				break;
			case 4:
				tileindex = 3; // crossing
				break;
			case 5: //sloped
				if(is_rail_z_plus_y[0])
					angle = 180;
				if(is_rail_x_plus_y[0])
					angle = 90;
				if(is_rail_x_plus_y[1])
					angle = -90;
				break;
			default:
				break;
			}

			TileSpec tile = getNodeTileN(n, p, tileindex, data);
			tile.material_flags &= ~MATERIAL_FLAG_BACKFACE_CULLING;
			tile.material_flags |= MATERIAL_FLAG_CRACK_OVERLAY;

			AtlasPointer ap = tile.texture;
			
			u16 l = getInteriorLight(n, 0, data);
			video::SColor c = MapBlock_LightColor(255, l);

			float d = (float)BS/64;
			
			char g=-1;
			if (is_rail_x_plus_y[0] || is_rail_x_plus_y[1] || is_rail_z_plus_y[0] || is_rail_z_plus_y[1])
				g=1; //Object is at a slope

			video::S3DVertex vertices[4] =
			{
					video::S3DVertex(-BS/2,-BS/2+d,-BS/2, 0,0,0, c,
							ap.x0(), ap.y1()),
					video::S3DVertex(BS/2,-BS/2+d,-BS/2, 0,0,0, c,
							ap.x1(), ap.y1()),
					video::S3DVertex(BS/2,g*BS/2+d,BS/2, 0,0,0, c,
							ap.x1(), ap.y0()),
					video::S3DVertex(-BS/2,g*BS/2+d,BS/2, 0,0,0, c,
							ap.x0(), ap.y0()),
			};

			for(s32 i=0; i<4; i++)
			{
				if(angle != 0)
					vertices[i].Pos.rotateXZBy(angle);
				vertices[i].Pos += intToFloat(p, BS);
			}

			u16 indices[] = {0,1,2,2,3,0};
			collector.append(tile, vertices, 4, indices, 6);
		break;}
		case NDT_NODEBOX:
		{
			static const v3s16 tile_dirs[6] = {
				v3s16(0, 1, 0),
				v3s16(0, -1, 0),
				v3s16(1, 0, 0),
				v3s16(-1, 0, 0),
				v3s16(0, 0, 1),
				v3s16(0, 0, -1)
			};

			TileSpec tiles[6];
			for(int i = 0; i < 6; i++)
			{
				// Handles facedir rotation for textures
				tiles[i] = getNodeTile(n, p, tile_dirs[i], data);
			}

			u16 l = getInteriorLight(n, 0, data);
			video::SColor c = MapBlock_LightColor(255, l);

			v3f pos = intToFloat(p, BS);

			std::vector<aabb3f> boxes = n.getNodeBoxes(nodedef);
			for(std::vector<aabb3f>::iterator
					i = boxes.begin();
					i != boxes.end(); i++)
			{
				aabb3f box = *i;
				box.MinEdge += pos;
				box.MaxEdge += pos;

				// Compute texture coords
				f32 tx1 = (i->MinEdge.X/BS)+0.5;
				f32 ty1 = (i->MinEdge.Y/BS)+0.5;
				f32 tz1 = (i->MinEdge.Z/BS)+0.5;
				f32 tx2 = (i->MaxEdge.X/BS)+0.5;
				f32 ty2 = (i->MaxEdge.Y/BS)+0.5;
				f32 tz2 = (i->MaxEdge.Z/BS)+0.5;
				f32 txc[24] = {
					// up
					tx1, 1-tz2, tx2, 1-tz1,
					// down
					tx1, tz1, tx2, tz2,
					// right
					tz1, 1-ty2, tz2, 1-ty1,
					// left
					1-tz2, 1-ty2, 1-tz1, 1-ty1,
					// back
					1-tx2, 1-ty2, 1-tx1, 1-ty1,
					// front
					tx1, 1-ty2, tx2, 1-ty1,
				};

				makeCuboid(&collector, box, tiles, 6, c, txc);
			}
		break;}
		}
	}
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-03 13:32:21 +0000