Move client-specific files to 'src/client' (#7902)

Update Android.mk
Remove 'src/client' from include_directories

1 files changed, 0 insertions, 1430 deletions

diff --git a/src/content_mapblock.cpp b/src/content_mapblock.cpp
deleted file mode 100644
index 4a0df6171..000000000
--- a/src/content_mapblock.cpp
+++ /dev/null
@@ -1,1430 +0,0 @@
-/*
-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 "content_mapblock.h"
-#include "util/numeric.h"
-#include "util/directiontables.h"
-#include "mapblock_mesh.h"
-#include "settings.h"
-#include "nodedef.h"
-#include "client/tile.h"
-#include "mesh.h"
-#include <IMeshManipulator.h>
-#include "client/meshgen/collector.h"
-#include "client/renderingengine.h"
-#include "client.h"
-#include "noise.h"
-
-// Distance of light extrapolation (for oversized nodes)
-// After this distance, it gives up and considers light level constant
-#define SMOOTH_LIGHTING_OVERSIZE 1.0
-
-// Node edge count (for glasslike-framed)
-#define FRAMED_EDGE_COUNT 12
-
-// Node neighbor count, including edge-connected, but not vertex-connected
-// (for glasslike-framed)
-// Corresponding offsets are listed in g_27dirs
-#define FRAMED_NEIGHBOR_COUNT 18
-
-static const v3s16 light_dirs[8] = {
-	v3s16(-1, -1, -1),
-	v3s16(-1, -1,  1),
-	v3s16(-1,  1, -1),
-	v3s16(-1,  1,  1),
-	v3s16( 1, -1, -1),
-	v3s16( 1, -1,  1),
-	v3s16( 1,  1, -1),
-	v3s16( 1,  1,  1),
-};
-
-// Standard index set to make a quad on 4 vertices
-static constexpr u16 quad_indices[] = {0, 1, 2, 2, 3, 0};
-
-const std::string MapblockMeshGenerator::raillike_groupname = "connect_to_raillike";
-
-MapblockMeshGenerator::MapblockMeshGenerator(MeshMakeData *input, MeshCollector *output)
-{
-	data      = input;
-	collector = output;
-
-	nodedef   = data->m_client->ndef();
-	meshmanip = RenderingEngine::get_scene_manager()->getMeshManipulator();
-
-	enable_mesh_cache = g_settings->getBool("enable_mesh_cache") &&
-		!data->m_smooth_lighting; // Mesh cache is not supported with smooth lighting
-
-	blockpos_nodes = data->m_blockpos * MAP_BLOCKSIZE;
-}
-
-void MapblockMeshGenerator::useTile(int index, u8 set_flags, u8 reset_flags, bool special)
-{
-	if (special)
-		getSpecialTile(index, &tile, p == data->m_crack_pos_relative);
-	else
-		getTile(index, &tile);
-	if (!data->m_smooth_lighting)
-		color = encode_light(light, f->light_source);
-
-	for (auto &layer : tile.layers) {
-		layer.material_flags |= set_flags;
-		layer.material_flags &= ~reset_flags;
-	}
-}
-
-// Returns a tile, ready for use, non-rotated.
-void MapblockMeshGenerator::getTile(int index, TileSpec *tile)
-{
-	getNodeTileN(n, p, index, data, *tile);
-}
-
-// Returns a tile, ready for use, rotated according to the node facedir.
-void MapblockMeshGenerator::getTile(v3s16 direction, TileSpec *tile)
-{
-	getNodeTile(n, p, direction, data, *tile);
-}
-
-// Returns a special tile, ready for use, non-rotated.
-void MapblockMeshGenerator::getSpecialTile(int index, TileSpec *tile, bool apply_crack)
-{
-	*tile = f->special_tiles[index];
-	TileLayer *top_layer = nullptr;
-
-	for (auto &layernum : tile->layers) {
-		TileLayer *layer = &layernum;
-		if (layer->texture_id == 0)
-			continue;
-		top_layer = layer;
-		if (!layer->has_color)
-			n.getColor(*f, &layer->color);
-	}
-
-	if (apply_crack)
-		top_layer->material_flags |= MATERIAL_FLAG_CRACK;
-}
-
-void MapblockMeshGenerator::drawQuad(v3f *coords, const v3s16 &normal,
-	float vertical_tiling)
-{
-	const v2f tcoords[4] = {v2f(0.0, 0.0), v2f(1.0, 0.0),
-		v2f(1.0, vertical_tiling), v2f(0.0, vertical_tiling)};
-	video::S3DVertex vertices[4];
-	bool shade_face = !f->light_source && (normal != v3s16(0, 0, 0));
-	v3f normal2(normal.X, normal.Y, normal.Z);
-	for (int j = 0; j < 4; j++) {
-		vertices[j].Pos = coords[j] + origin;
-		vertices[j].Normal = normal2;
-		if (data->m_smooth_lighting)
-			vertices[j].Color = blendLightColor(coords[j]);
-		else
-			vertices[j].Color = color;
-		if (shade_face)
-			applyFacesShading(vertices[j].Color, normal2);
-		vertices[j].TCoords = tcoords[j];
-	}
-	collector->append(tile, vertices, 4, quad_indices, 6);
-}
-
-// Create a cuboid.
-//  tiles     - the tiles (materials) to use (for all 6 faces)
-//  tilecount - number of entries in tiles, 1<=tilecount<=6
-//  lights    - vertex light levels. The order is the same as in light_dirs.
-//              NULL may be passed if smooth lighting is disabled.
-//  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. The order of
-//              the faces in the list is up-down-right-left-back-front
-//              (compatible with ContentFeatures).
-void MapblockMeshGenerator::drawCuboid(const aabb3f &box,
-	TileSpec *tiles, int tilecount, const LightInfo *lights, const f32 *txc)
-{
-	assert(tilecount >= 1 && tilecount <= 6); // pre-condition
-
-	v3f min = box.MinEdge;
-	v3f max = box.MaxEdge;
-
-	video::SColor colors[6];
-	if (!data->m_smooth_lighting) {
-		for (int face = 0; face != 6; ++face) {
-			colors[face] = encode_light(light, f->light_source);
-		}
-		if (!f->light_source) {
-			applyFacesShading(colors[0], v3f(0, 1, 0));
-			applyFacesShading(colors[1], v3f(0, -1, 0));
-			applyFacesShading(colors[2], v3f(1, 0, 0));
-			applyFacesShading(colors[3], v3f(-1, 0, 0));
-			applyFacesShading(colors[4], v3f(0, 0, 1));
-			applyFacesShading(colors[5], v3f(0, 0, -1));
-		}
-	}
-
-	video::S3DVertex vertices[24] = {
-		// top
-		video::S3DVertex(min.X, max.Y, max.Z, 0, 1, 0, colors[0], txc[0], txc[1]),
-		video::S3DVertex(max.X, max.Y, max.Z, 0, 1, 0, colors[0], txc[2], txc[1]),
-		video::S3DVertex(max.X, max.Y, min.Z, 0, 1, 0, colors[0], txc[2], txc[3]),
-		video::S3DVertex(min.X, max.Y, min.Z, 0, 1, 0, colors[0], txc[0], txc[3]),
-		// bottom
-		video::S3DVertex(min.X, min.Y, min.Z, 0, -1, 0, colors[1], txc[4], txc[5]),
-		video::S3DVertex(max.X, min.Y, min.Z, 0, -1, 0, colors[1], txc[6], txc[5]),
-		video::S3DVertex(max.X, min.Y, max.Z, 0, -1, 0, colors[1], txc[6], txc[7]),
-		video::S3DVertex(min.X, min.Y, max.Z, 0, -1, 0, colors[1], txc[4], txc[7]),
-		// right
-		video::S3DVertex(max.X, max.Y, min.Z, 1, 0, 0, colors[2], txc[ 8], txc[9]),
-		video::S3DVertex(max.X, max.Y, max.Z, 1, 0, 0, colors[2], txc[10], txc[9]),
-		video::S3DVertex(max.X, min.Y, max.Z, 1, 0, 0, colors[2], txc[10], txc[11]),
-		video::S3DVertex(max.X, min.Y, min.Z, 1, 0, 0, colors[2], txc[ 8], txc[11]),
-		// left
-		video::S3DVertex(min.X, max.Y, max.Z, -1, 0, 0, colors[3], txc[12], txc[13]),
-		video::S3DVertex(min.X, max.Y, min.Z, -1, 0, 0, colors[3], txc[14], txc[13]),
-		video::S3DVertex(min.X, min.Y, min.Z, -1, 0, 0, colors[3], txc[14], txc[15]),
-		video::S3DVertex(min.X, min.Y, max.Z, -1, 0, 0, colors[3], txc[12], txc[15]),
-		// back
-		video::S3DVertex(max.X, max.Y, max.Z, 0, 0, 1, colors[4], txc[16], txc[17]),
-		video::S3DVertex(min.X, max.Y, max.Z, 0, 0, 1, colors[4], txc[18], txc[17]),
-		video::S3DVertex(min.X, min.Y, max.Z, 0, 0, 1, colors[4], txc[18], txc[19]),
-		video::S3DVertex(max.X, min.Y, max.Z, 0, 0, 1, colors[4], txc[16], txc[19]),
-		// front
-		video::S3DVertex(min.X, max.Y, min.Z, 0, 0, -1, colors[5], txc[20], txc[21]),
-		video::S3DVertex(max.X, max.Y, min.Z, 0, 0, -1, colors[5], txc[22], txc[21]),
-		video::S3DVertex(max.X, min.Y, min.Z, 0, 0, -1, colors[5], txc[22], txc[23]),
-		video::S3DVertex(min.X, min.Y, min.Z, 0, 0, -1, colors[5], txc[20], txc[23]),
-	};
-
-	static const u8 light_indices[24] = {
-		3, 7, 6, 2,
-		0, 4, 5, 1,
-		6, 7, 5, 4,
-		3, 2, 0, 1,
-		7, 3, 1, 5,
-		2, 6, 4, 0
-	};
-
-	for (int face = 0; face < 6; face++) {
-		int tileindex = MYMIN(face, tilecount - 1);
-		const TileSpec &tile = tiles[tileindex];
-		for (int j = 0; j < 4; j++) {
-			video::S3DVertex &vertex = vertices[face * 4 + j];
-			v2f &tcoords = vertex.TCoords;
-			switch (tile.rotation) {
-			case 0:
-				break;
-			case 1: // R90
-				tcoords.rotateBy(90, irr::core::vector2df(0, 0));
-				break;
-			case 2: // R180
-				tcoords.rotateBy(180, irr::core::vector2df(0, 0));
-				break;
-			case 3: // R270
-				tcoords.rotateBy(270, irr::core::vector2df(0, 0));
-				break;
-			case 4: // FXR90
-				tcoords.X = 1.0 - tcoords.X;
-				tcoords.rotateBy(90, irr::core::vector2df(0, 0));
-				break;
-			case 5: // FXR270
-				tcoords.X = 1.0 - tcoords.X;
-				tcoords.rotateBy(270, irr::core::vector2df(0, 0));
-				break;
-			case 6: // FYR90
-				tcoords.Y = 1.0 - tcoords.Y;
-				tcoords.rotateBy(90, irr::core::vector2df(0, 0));
-				break;
-			case 7: // FYR270
-				tcoords.Y = 1.0 - tcoords.Y;
-				tcoords.rotateBy(270, irr::core::vector2df(0, 0));
-				break;
-			case 8: // FX
-				tcoords.X = 1.0 - tcoords.X;
-				break;
-			case 9: // FY
-				tcoords.Y = 1.0 - tcoords.Y;
-				break;
-			default:
-				break;
-			}
-		}
-	}
-
-	if (data->m_smooth_lighting) {
-		for (int j = 0; j < 24; ++j) {
-			video::S3DVertex &vertex = vertices[j];
-			vertex.Color = encode_light(
-				lights[light_indices[j]].getPair(MYMAX(0.0f, vertex.Normal.Y)),
-				f->light_source);
-			if (!f->light_source)
-				applyFacesShading(vertex.Color, vertex.Normal);
-		}
-	}
-
-	// Add to mesh collector
-	for (int k = 0; k < 6; ++k) {
-		int tileindex = MYMIN(k, tilecount - 1);
-		collector->append(tiles[tileindex], vertices + 4 * k, 4, quad_indices, 6);
-	}
-}
-
-// Gets the base lighting values for a node
-void MapblockMeshGenerator::getSmoothLightFrame()
-{
-	for (int k = 0; k < 8; ++k)
-		frame.sunlight[k] = false;
-	for (int k = 0; k < 8; ++k) {
-		LightPair light(getSmoothLightTransparent(blockpos_nodes + p, light_dirs[k], data));
-		frame.lightsDay[k] = light.lightDay;
-		frame.lightsNight[k] = light.lightNight;
-		// If there is direct sunlight and no ambient occlusion at some corner,
-		// mark the vertical edge (top and bottom corners) containing it.
-		if (light.lightDay == 255) {
-			frame.sunlight[k] = true;
-			frame.sunlight[k ^ 2] = true;
-		}
-	}
-}
-
-// Calculates vertex light level
-//  vertex_pos - vertex position in the node (coordinates are clamped to [0.0, 1.0] or so)
-LightInfo MapblockMeshGenerator::blendLight(const v3f &vertex_pos)
-{
-	// Light levels at (logical) node corners are known. Here,
-	// trilinear interpolation is used to calculate light level
-	// at a given point in the node.
-	f32 x = core::clamp(vertex_pos.X / BS + 0.5, 0.0 - SMOOTH_LIGHTING_OVERSIZE, 1.0 + SMOOTH_LIGHTING_OVERSIZE);
-	f32 y = core::clamp(vertex_pos.Y / BS + 0.5, 0.0 - SMOOTH_LIGHTING_OVERSIZE, 1.0 + SMOOTH_LIGHTING_OVERSIZE);
-	f32 z = core::clamp(vertex_pos.Z / BS + 0.5, 0.0 - SMOOTH_LIGHTING_OVERSIZE, 1.0 + SMOOTH_LIGHTING_OVERSIZE);
-	f32 lightDay = 0.0; // daylight
-	f32 lightNight = 0.0;
-	f32 lightBoosted = 0.0; // daylight + direct sunlight, if any
-	for (int k = 0; k < 8; ++k) {
-		f32 dx = (k & 4) ? x : 1 - x;
-		f32 dy = (k & 2) ? y : 1 - y;
-		f32 dz = (k & 1) ? z : 1 - z;
-		// Use direct sunlight (255), if any; use daylight otherwise.
-		f32 light_boosted = frame.sunlight[k] ? 255 : frame.lightsDay[k];
-		lightDay += dx * dy * dz * frame.lightsDay[k];
-		lightNight += dx * dy * dz * frame.lightsNight[k];
-		lightBoosted += dx * dy * dz * light_boosted;
-	}
-	return LightInfo{lightDay, lightNight, lightBoosted};
-}
-
-// Calculates vertex color to be used in mapblock mesh
-//  vertex_pos - vertex position in the node (coordinates are clamped to [0.0, 1.0] or so)
-//  tile_color - node's tile color
-video::SColor MapblockMeshGenerator::blendLightColor(const v3f &vertex_pos)
-{
-	LightInfo light = blendLight(vertex_pos);
-	return encode_light(light.getPair(), f->light_source);
-}
-
-video::SColor MapblockMeshGenerator::blendLightColor(const v3f &vertex_pos,
-	const v3f &vertex_normal)
-{
-	LightInfo light = blendLight(vertex_pos);
-	video::SColor color = encode_light(light.getPair(MYMAX(0.0f, vertex_normal.Y)), f->light_source);
-	if (!f->light_source)
-		applyFacesShading(color, vertex_normal);
-	return color;
-}
-
-void MapblockMeshGenerator::generateCuboidTextureCoords(const aabb3f &box, f32 *coords)
-{
-	f32 tx1 = (box.MinEdge.X / BS) + 0.5;
-	f32 ty1 = (box.MinEdge.Y / BS) + 0.5;
-	f32 tz1 = (box.MinEdge.Z / BS) + 0.5;
-	f32 tx2 = (box.MaxEdge.X / BS) + 0.5;
-	f32 ty2 = (box.MaxEdge.Y / BS) + 0.5;
-	f32 tz2 = (box.MaxEdge.Z / BS) + 0.5;
-	f32 txc[24] = {
-		    tx1, 1 - tz2,     tx2, 1 - tz1, // up
-		    tx1,     tz1,     tx2,     tz2, // down
-		    tz1, 1 - ty2,     tz2, 1 - ty1, // right
-		1 - tz2, 1 - ty2, 1 - tz1, 1 - ty1, // left
-		1 - tx2, 1 - ty2, 1 - tx1, 1 - ty1, // back
-		    tx1, 1 - ty2,     tx2, 1 - ty1, // front
-	};
-	for (int i = 0; i != 24; ++i)
-		coords[i] = txc[i];
-}
-
-void MapblockMeshGenerator::drawAutoLightedCuboid(aabb3f box, const f32 *txc,
-	TileSpec *tiles, int tile_count)
-{
-	f32 texture_coord_buf[24];
-	f32 dx1 = box.MinEdge.X;
-	f32 dy1 = box.MinEdge.Y;
-	f32 dz1 = box.MinEdge.Z;
-	f32 dx2 = box.MaxEdge.X;
-	f32 dy2 = box.MaxEdge.Y;
-	f32 dz2 = box.MaxEdge.Z;
-	box.MinEdge += origin;
-	box.MaxEdge += origin;
-	if (!txc) {
-		generateCuboidTextureCoords(box, texture_coord_buf);
-		txc = texture_coord_buf;
-	}
-	if (!tiles) {
-		tiles = &tile;
-		tile_count = 1;
-	}
-	if (data->m_smooth_lighting) {
-		LightInfo lights[8];
-		for (int j = 0; j < 8; ++j) {
-			v3f d;
-			d.X = (j & 4) ? dx2 : dx1;
-			d.Y = (j & 2) ? dy2 : dy1;
-			d.Z = (j & 1) ? dz2 : dz1;
-			lights[j] = blendLight(d);
-		}
-		drawCuboid(box, tiles, tile_count, lights, txc);
-	} else {
-		drawCuboid(box, tiles, tile_count, nullptr, txc);
-	}
-}
-
-void MapblockMeshGenerator::prepareLiquidNodeDrawing()
-{
-	getSpecialTile(0, &tile_liquid_top);
-	getSpecialTile(1, &tile_liquid);
-
-	MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(p.X, p.Y + 1, p.Z));
-	MapNode nbottom = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(p.X, p.Y - 1, p.Z));
-	c_flowing = nodedef->getId(f->liquid_alternative_flowing);
-	c_source = nodedef->getId(f->liquid_alternative_source);
-	top_is_same_liquid = (ntop.getContent() == c_flowing) || (ntop.getContent() == c_source);
-	draw_liquid_bottom = (nbottom.getContent() != c_flowing) && (nbottom.getContent() != c_source);
-	if (draw_liquid_bottom) {
-		const ContentFeatures &f2 = nodedef->get(nbottom.getContent());
-		if (f2.solidness > 1)
-			draw_liquid_bottom = false;
-	}
-
-	if (data->m_smooth_lighting)
-		return; // don't need to pre-compute anything in this case
-
-	if (f->light_source != 0) {
-		// If this liquid emits light and doesn't contain light, draw
-		// it at what it emits, for an increased effect
-		u8 e = decode_light(f->light_source);
-		light = LightPair(std::max(e, light.lightDay), std::max(e, light.lightNight));
-	} else if (nodedef->get(ntop).param_type == CPT_LIGHT) {
-		// Otherwise, use the light of the node on top if possible
-		light = LightPair(getInteriorLight(ntop, 0, nodedef));
-	}
-
-	color_liquid_top = encode_light(light, f->light_source);
-	color = encode_light(light, f->light_source);
-}
-
-void MapblockMeshGenerator::getLiquidNeighborhood()
-{
-	u8 range = rangelim(nodedef->get(c_flowing).liquid_range, 1, 8);
-
-	for (int w = -1; w <= 1; w++)
-	for (int u = -1; u <= 1; u++) {
-		NeighborData &neighbor = liquid_neighbors[w + 1][u + 1];
-		v3s16 p2 = p + v3s16(u, 0, w);
-		MapNode n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
-		neighbor.content = n2.getContent();
-		neighbor.level = -0.5 * BS;
-		neighbor.is_same_liquid = false;
-		neighbor.top_is_same_liquid = false;
-
-		if (neighbor.content == CONTENT_IGNORE)
-			continue;
-
-		if (neighbor.content == c_source) {
-			neighbor.is_same_liquid = true;
-			neighbor.level = 0.5 * BS;
-		} else if (neighbor.content == c_flowing) {
-			neighbor.is_same_liquid = true;
-			u8 liquid_level = (n2.param2 & LIQUID_LEVEL_MASK);
-			if (liquid_level <= LIQUID_LEVEL_MAX + 1 - range)
-				liquid_level = 0;
-			else
-				liquid_level -= (LIQUID_LEVEL_MAX + 1 - range);
-			neighbor.level = (-0.5 + (liquid_level + 0.5) / range) * BS;
-		}
-
-		// Check node above neighbor.
-		// NOTE: This doesn't get executed if neighbor
-		//       doesn't exist
-		p2.Y++;
-		n2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p2);
-		if (n2.getContent() == c_source || n2.getContent() == c_flowing)
-			neighbor.top_is_same_liquid = true;
-	}
-}
-
-void MapblockMeshGenerator::calculateCornerLevels()
-{
-	for (int k = 0; k < 2; k++)
-	for (int i = 0; i < 2; i++)
-		corner_levels[k][i] = getCornerLevel(i, k);
-}
-
-f32 MapblockMeshGenerator::getCornerLevel(int i, int k)
-{
-	float sum = 0;
-	int count = 0;
-	int air_count = 0;
-	for (int dk = 0; dk < 2; dk++)
-	for (int di = 0; di < 2; di++) {
-		NeighborData &neighbor_data = liquid_neighbors[k + dk][i + di];
-		content_t content = neighbor_data.content;
-
-		// If top is liquid, draw starting from top of node
-		if (neighbor_data.top_is_same_liquid)
-			return 0.5 * BS;
-
-		// Source always has the full height
-		if (content == c_source)
-			return 0.5 * BS;
-
-		// Flowing liquid has level information
-		if (content == c_flowing) {
-			sum += neighbor_data.level;
-			count++;
-		} else if (content == CONTENT_AIR) {
-			air_count++;
-			if (air_count >= 2)
-				return -0.5 * BS + 0.2;
-		}
-	}
-	if (count > 0)
-		return sum / count;
-	return 0;
-}
-
-void MapblockMeshGenerator::drawLiquidSides()
-{
-	struct LiquidFaceDesc {
-		v3s16 dir; // XZ
-		v3s16 p[2]; // XZ only; 1 means +, 0 means -
-	};
-	struct UV {
-		int u, v;
-	};
-	static const LiquidFaceDesc base_faces[4] = {
-		{v3s16( 1, 0,  0), {v3s16(1, 0, 1), v3s16(1, 0, 0)}},
-		{v3s16(-1, 0,  0), {v3s16(0, 0, 0), v3s16(0, 0, 1)}},
-		{v3s16( 0, 0,  1), {v3s16(0, 0, 1), v3s16(1, 0, 1)}},
-		{v3s16( 0, 0, -1), {v3s16(1, 0, 0), v3s16(0, 0, 0)}},
-	};
-	static const UV base_vertices[4] = {
-		{0, 1},
-		{1, 1},
-		{1, 0},
-		{0, 0}
-	};
-
-	for (const auto &face : base_faces) {
-		const NeighborData &neighbor = liquid_neighbors[face.dir.Z + 1][face.dir.X + 1];
-
-		// No face between nodes of the same liquid, unless there is node
-		// at the top to which it should be connected. Again, unless the face
-		// there would be inside the liquid
-		if (neighbor.is_same_liquid) {
-			if (!top_is_same_liquid)
-				continue;
-			if (neighbor.top_is_same_liquid)
-				continue;
-		}
-
-		const ContentFeatures &neighbor_features = nodedef->get(neighbor.content);
-		// Don't draw face if neighbor is blocking the view
-		if (neighbor_features.solidness == 2)
-			continue;
-
-		video::S3DVertex vertices[4];
-		for (int j = 0; j < 4; j++) {
-			const UV &vertex = base_vertices[j];
-			const v3s16 &base = face.p[vertex.u];
-			v3f pos;
-			pos.X = (base.X - 0.5) * BS;
-			pos.Z = (base.Z - 0.5) * BS;
-			if (vertex.v)
-				pos.Y = neighbor.is_same_liquid ? corner_levels[base.Z][base.X] : -0.5 * BS;
-			else
-				pos.Y =     !top_is_same_liquid ? corner_levels[base.Z][base.X] :  0.5 * BS;
-			if (data->m_smooth_lighting)
-				color = blendLightColor(pos);
-			pos += origin;
-			vertices[j] = video::S3DVertex(pos.X, pos.Y, pos.Z, 0, 0, 0, color, vertex.u, vertex.v);
-		};
-		collector->append(tile_liquid, vertices, 4, quad_indices, 6);
-	}
-}
-
-void MapblockMeshGenerator::drawLiquidTop()
-{
-	// 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.
-	static const int corner_resolve[4][2] = {{0, 1}, {1, 1}, {1, 0}, {0, 0}};
-
-	video::S3DVertex vertices[4] = {
-		video::S3DVertex(-BS / 2, 0,  BS / 2, 0, 0, 0, color_liquid_top, 0, 1),
-		video::S3DVertex( BS / 2, 0,  BS / 2, 0, 0, 0, color_liquid_top, 1, 1),
-		video::S3DVertex( BS / 2, 0, -BS / 2, 0, 0, 0, color_liquid_top, 1, 0),
-		video::S3DVertex(-BS / 2, 0, -BS / 2, 0, 0, 0, color_liquid_top, 0, 0),
-	};
-
-	for (int i = 0; i < 4; i++) {
-		int u = corner_resolve[i][0];
-		int w = corner_resolve[i][1];
-		vertices[i].Pos.Y += corner_levels[w][u];
-		if (data->m_smooth_lighting)
-			vertices[i].Color = blendLightColor(vertices[i].Pos);
-		vertices[i].Pos += origin;
-	}
-
-	// 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
-	f32 dz = (corner_levels[0][0] + corner_levels[0][1]) -
-	         (corner_levels[1][0] + corner_levels[1][1]);
-	// Positive if liquid moves towards +X
-	f32 dx = (corner_levels[0][0] + corner_levels[1][0]) -
-	         (corner_levels[0][1] + corner_levels[1][1]);
-	f32 tcoord_angle = atan2(dz, dx) * core::RADTODEG;
-	v2f tcoord_center(0.5, 0.5);
-	v2f tcoord_translate(blockpos_nodes.Z + p.Z, blockpos_nodes.X + p.X);
-	tcoord_translate.rotateBy(tcoord_angle);
-	tcoord_translate.X -= floor(tcoord_translate.X);
-	tcoord_translate.Y -= floor(tcoord_translate.Y);
-
-	for (video::S3DVertex &vertex : vertices) {
-		vertex.TCoords.rotateBy(tcoord_angle, tcoord_center);
-		vertex.TCoords += tcoord_translate;
-	}
-
-	std::swap(vertices[0].TCoords, vertices[2].TCoords);
-
-	collector->append(tile_liquid_top, vertices, 4, quad_indices, 6);
-}
-
-void MapblockMeshGenerator::drawLiquidBottom()
-{
-	video::S3DVertex vertices[4] = {
-		video::S3DVertex(-BS / 2, -BS / 2, -BS / 2, 0, 0, 0, color_liquid_top, 0, 0),
-		video::S3DVertex( BS / 2, -BS / 2, -BS / 2, 0, 0, 0, color_liquid_top, 1, 0),
-		video::S3DVertex( BS / 2, -BS / 2,  BS / 2, 0, 0, 0, color_liquid_top, 1, 1),
-		video::S3DVertex(-BS / 2, -BS / 2,  BS / 2, 0, 0, 0, color_liquid_top, 0, 1),
-	};
-
-	for (int i = 0; i < 4; i++) {
-		if (data->m_smooth_lighting)
-			vertices[i].Color = blendLightColor(vertices[i].Pos);
-		vertices[i].Pos += origin;
-	}
-
-	collector->append(tile_liquid_top, vertices, 4, quad_indices, 6);
-}
-
-void MapblockMeshGenerator::drawLiquidNode()
-{
-	prepareLiquidNodeDrawing();
-	getLiquidNeighborhood();
-	calculateCornerLevels();
-	drawLiquidSides();
-	if (!top_is_same_liquid)
-		drawLiquidTop();
-	if (draw_liquid_bottom)
-		drawLiquidBottom();
-}
-
-void MapblockMeshGenerator::drawGlasslikeNode()
-{
-	useTile(0, 0, 0);
-
-	for (int face = 0; face < 6; face++) {
-		// Check this neighbor
-		v3s16 dir = g_6dirs[face];
-		v3s16 neighbor_pos = blockpos_nodes + p + dir;
-		MapNode neighbor = data->m_vmanip.getNodeNoExNoEmerge(neighbor_pos);
-		// Don't make face if neighbor is of same type
-		if (neighbor.getContent() == n.getContent())
-			continue;
-		// Face at Z-
-		v3f vertices[4] = {
-			v3f(-BS / 2,  BS / 2, -BS / 2),
-			v3f( BS / 2,  BS / 2, -BS / 2),
-			v3f( BS / 2, -BS / 2, -BS / 2),
-			v3f(-BS / 2, -BS / 2, -BS / 2),
-		};
-
-		for (v3f &vertex : vertices) {
-			switch (face) {
-				case D6D_ZP:
-					vertex.rotateXZBy(180); break;
-				case D6D_YP:
-					vertex.rotateYZBy( 90); break;
-				case D6D_XP:
-					vertex.rotateXZBy( 90); break;
-				case D6D_ZN:
-					vertex.rotateXZBy(  0); break;
-				case D6D_YN:
-					vertex.rotateYZBy(-90); break;
-				case D6D_XN:
-					vertex.rotateXZBy(-90); break;
-			}
-		}
-		drawQuad(vertices, dir);
-	}
-}
-
-void MapblockMeshGenerator::drawGlasslikeFramedNode()
-{
-	TileSpec tiles[6];
-	for (int face = 0; face < 6; face++)
-		getTile(g_6dirs[face], &tiles[face]);
-
-	if (!data->m_smooth_lighting)
-		color = encode_light(light, f->light_source);
-
-	TileSpec glass_tiles[6];
-	for (auto &glass_tile : glass_tiles)
-		glass_tile = tiles[4];
-
-	u8 param2 = n.getParam2();
-	bool H_merge = !(param2 & 128);
-	bool V_merge = !(param2 & 64);
-	param2 &= 63;
-
-	static const float a = BS / 2.0f;
-	static const float g = a - 0.03f;
-	static const float b = 0.876f * (BS / 2.0f);
-
-	static const aabb3f frame_edges[FRAMED_EDGE_COUNT] = {
-		aabb3f( b,  b, -a,  a,  a,  a), // y+
-		aabb3f(-a,  b, -a, -b,  a,  a), // y+
-		aabb3f( b, -a, -a,  a, -b,  a), // y-
-		aabb3f(-a, -a, -a, -b, -b,  a), // y-
-		aabb3f( b, -a,  b,  a,  a,  a), // x+
-		aabb3f( b, -a, -a,  a,  a, -b), // x+
-		aabb3f(-a, -a,  b, -b,  a,  a), // x-
-		aabb3f(-a, -a, -a, -b,  a, -b), // x-
-		aabb3f(-a,  b,  b,  a,  a,  a), // z+
-		aabb3f(-a, -a,  b,  a, -b,  a), // z+
-		aabb3f(-a, -a, -a,  a, -b, -b), // z-
-		aabb3f(-a,  b, -a,  a,  a, -b), // z-
-	};
-
-	// tables of neighbour (connect if same type and merge allowed),
-	// checked with g_26dirs
-
-	// 1 = connect, 0 = face visible
-	bool nb[FRAMED_NEIGHBOR_COUNT] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
-
-	// 1 = check
-	static const bool check_nb_vertical [FRAMED_NEIGHBOR_COUNT] =
-		{0,1,0,0,1,0, 0,0,0,0, 0,0,0,0, 0,0,0,0};
-	static const bool check_nb_horizontal [FRAMED_NEIGHBOR_COUNT] =
-		{1,0,1,1,0,1, 0,0,0,0, 1,1,1,1, 0,0,0,0};
-	static const bool check_nb_all [FRAMED_NEIGHBOR_COUNT] =
-		{1,1,1,1,1,1, 1,1,1,1, 1,1,1,1, 1,1,1,1};
-	const bool *check_nb = check_nb_all;
-
-	// neighbours checks for frames visibility
-	if (H_merge || V_merge) {
-		if (!H_merge)
-			check_nb = check_nb_vertical; // vertical-only merge
-		if (!V_merge)
-			check_nb = check_nb_horizontal; // horizontal-only merge
-		content_t current = n.getContent();
-		for (int i = 0; i < FRAMED_NEIGHBOR_COUNT; i++) {
-			if (!check_nb[i])
-				continue;
-			v3s16 n2p = blockpos_nodes + p + g_26dirs[i];
-			MapNode n2 = data->m_vmanip.getNodeNoEx(n2p);
-			content_t n2c = n2.getContent();
-			if (n2c == current)
-				nb[i] = 1;
-		}
-	}
-
-	// edge visibility
-
-	static const u8 nb_triplet[FRAMED_EDGE_COUNT][3] = {
-		{1, 2,  7}, {1, 5,  6}, {4, 2, 15}, {4, 5, 14},
-		{2, 0, 11}, {2, 3, 13}, {5, 0, 10}, {5, 3, 12},
-		{0, 1,  8}, {0, 4, 16}, {3, 4, 17}, {3, 1,  9},
-	};
-
-	tile = tiles[1];
-	for (int edge = 0; edge < FRAMED_EDGE_COUNT; edge++) {
-		bool edge_invisible;
-		if (nb[nb_triplet[edge][2]])
-			edge_invisible = nb[nb_triplet[edge][0]] & nb[nb_triplet[edge][1]];
-		else
-			edge_invisible = nb[nb_triplet[edge][0]] ^ nb[nb_triplet[edge][1]];
-		if (edge_invisible)
-			continue;
-		drawAutoLightedCuboid(frame_edges[edge]);
-	}
-
-	for (int face = 0; face < 6; face++) {
-		if (nb[face])
-			continue;
-
-		tile = glass_tiles[face];
-		// Face at Z-
-		v3f vertices[4] = {
-			v3f(-a,  a, -g),
-			v3f( a,  a, -g),
-			v3f( a, -a, -g),
-			v3f(-a, -a, -g),
-		};
-
-		for (v3f &vertex : vertices) {
-			switch (face) {
-				case D6D_ZP:
-					vertex.rotateXZBy(180); break;
-				case D6D_YP:
-					vertex.rotateYZBy( 90); break;
-				case D6D_XP:
-					vertex.rotateXZBy( 90); break;
-				case D6D_ZN:
-					vertex.rotateXZBy(  0); break;
-				case D6D_YN:
-					vertex.rotateYZBy(-90); break;
-				case D6D_XN:
-					vertex.rotateXZBy(-90); break;
-			}
-		}
-		v3s16 dir = g_6dirs[face];
-		drawQuad(vertices, dir);
-	}
-
-	// Optionally render internal liquid level defined by param2
-	// Liquid is textured with 1 tile defined in nodedef 'special_tiles'
-	if (param2 > 0 && f->param_type_2 == CPT2_GLASSLIKE_LIQUID_LEVEL &&
-			f->special_tiles[0].layers[0].texture) {
-		// Internal liquid level has param2 range 0 .. 63,
-		// convert it to -0.5 .. 0.5
-		float vlev = (param2 / 63.0f) * 2.0f - 1.0f;
-		getSpecialTile(0, &tile);
-		drawAutoLightedCuboid(aabb3f(-(nb[5] ? g : b),
-		                             -(nb[4] ? g : b),
-		                             -(nb[3] ? g : b),
-		                              (nb[2] ? g : b),
-		                              (nb[1] ? g : b) * vlev,
-		                              (nb[0] ? g : b)));
-	}
-}
-
-void MapblockMeshGenerator::drawAllfacesNode()
-{
-	static const aabb3f box(-BS / 2, -BS / 2, -BS / 2, BS / 2, BS / 2, BS / 2);
-	useTile(0, 0, 0);
-	drawAutoLightedCuboid(box);
-}
-
-void MapblockMeshGenerator::drawTorchlikeNode()
-{
-	u8 wall = n.getWallMounted(nodedef);
-	u8 tileindex = 0;
-	switch (wall) {
-		case DWM_YP: tileindex = 1; break; // ceiling
-		case DWM_YN: tileindex = 0; break; // floor
-		default:     tileindex = 2; // side (or invalid—should we care?)
-	}
-	useTile(tileindex, MATERIAL_FLAG_CRACK_OVERLAY, MATERIAL_FLAG_BACKFACE_CULLING);
-
-	float size = BS / 2 * f->visual_scale;
-	v3f vertices[4] = {
-		v3f(-size,  size, 0),
-		v3f( size,  size, 0),
-		v3f( size, -size, 0),
-		v3f(-size, -size, 0),
-	};
-
-	for (v3f &vertex : vertices) {
-		switch (wall) {
-			case DWM_YP:
-				vertex.rotateXZBy(-45); break;
-			case DWM_YN:
-				vertex.rotateXZBy( 45); break;
-			case DWM_XP:
-				vertex.rotateXZBy(  0); break;
-			case DWM_XN:
-				vertex.rotateXZBy(180); break;
-			case DWM_ZP:
-				vertex.rotateXZBy( 90); break;
-			case DWM_ZN:
-				vertex.rotateXZBy(-90); break;
-		}
-	}
-	drawQuad(vertices);
-}
-
-void MapblockMeshGenerator::drawSignlikeNode()
-{
-	u8 wall = n.getWallMounted(nodedef);
-	useTile(0, MATERIAL_FLAG_CRACK_OVERLAY, MATERIAL_FLAG_BACKFACE_CULLING);
-	static const float offset = BS / 16;
-	float size = BS / 2 * f->visual_scale;
-	// Wall at X+ of node
-	v3f vertices[4] = {
-		v3f(BS / 2 - offset,  size,  size),
-		v3f(BS / 2 - offset,  size, -size),
-		v3f(BS / 2 - offset, -size, -size),
-		v3f(BS / 2 - offset, -size,  size),
-	};
-
-	for (v3f &vertex : vertices) {
-		switch (wall) {
-			case DWM_YP:
-				vertex.rotateXYBy( 90); break;
-			case DWM_YN:
-				vertex.rotateXYBy(-90); break;
-			case DWM_XP:
-				vertex.rotateXZBy(  0); break;
-			case DWM_XN:
-				vertex.rotateXZBy(180); break;
-			case DWM_ZP:
-				vertex.rotateXZBy( 90); break;
-			case DWM_ZN:
-				vertex.rotateXZBy(-90); break;
-		}
-	}
-	drawQuad(vertices);
-}
-
-void MapblockMeshGenerator::drawPlantlikeQuad(float rotation, float quad_offset,
-	bool offset_top_only)
-{
-	v3f vertices[4] = {
-		v3f(-scale, -BS / 2 + 2.0 * scale * plant_height, 0),
-		v3f( scale, -BS / 2 + 2.0 * scale * plant_height, 0),
-		v3f( scale, -BS / 2, 0),
-		v3f(-scale, -BS / 2, 0),
-	};
-	if (random_offset_Y) {
-		PseudoRandom yrng(face_num++ | p.X << 16 | p.Z << 8 | p.Y << 24);
-		offset.Y = -BS * ((yrng.next() % 16 / 16.0) * 0.125);
-	}
-	int offset_count = offset_top_only ? 2 : 4;
-	for (int i = 0; i < offset_count; i++)
-		vertices[i].Z += quad_offset;
-
-	for (v3f &vertex : vertices) {
-		vertex.rotateXZBy(rotation + rotate_degree);
-		vertex += offset;
-	}
-	drawQuad(vertices, v3s16(0, 0, 0), plant_height);
-}
-
-void MapblockMeshGenerator::drawPlantlike()
-{
-	draw_style = PLANT_STYLE_CROSS;
-	scale = BS / 2 * f->visual_scale;
-	offset = v3f(0, 0, 0);
-	rotate_degree = 0;
-	random_offset_Y = false;
-	face_num = 0;
-	plant_height = 1.0;
-
-	switch (f->param_type_2) {
-	case CPT2_MESHOPTIONS:
-		draw_style = PlantlikeStyle(n.param2 & MO_MASK_STYLE);
-		if (n.param2 & MO_BIT_SCALE_SQRT2)
-			scale *= 1.41421;
-		if (n.param2 & MO_BIT_RANDOM_OFFSET) {
-			PseudoRandom rng(p.X << 8 | p.Z | p.Y << 16);
-			offset.X = BS * ((rng.next() % 16 / 16.0) * 0.29 - 0.145);
-			offset.Z = BS * ((rng.next() % 16 / 16.0) * 0.29 - 0.145);
-		}
-		if (n.param2 & MO_BIT_RANDOM_OFFSET_Y)
-			random_offset_Y = true;
-		break;
-
-	case CPT2_DEGROTATE:
-		rotate_degree = n.param2 * 2;
-		break;
-
-	case CPT2_LEVELED:
-		plant_height = n.param2 / 16.0;
-		break;
-
-	default:
-		break;
-	}
-
-	switch (draw_style) {
-	case PLANT_STYLE_CROSS:
-		drawPlantlikeQuad(46);
-		drawPlantlikeQuad(-44);
-		break;
-
-	case PLANT_STYLE_CROSS2:
-		drawPlantlikeQuad(91);
-		drawPlantlikeQuad(1);
-		break;
-
-	case PLANT_STYLE_STAR:
-		drawPlantlikeQuad(121);
-		drawPlantlikeQuad(241);
-		drawPlantlikeQuad(1);
-		break;
-
-	case PLANT_STYLE_HASH:
-		drawPlantlikeQuad(  1, BS / 4);
-		drawPlantlikeQuad( 91, BS / 4);
-		drawPlantlikeQuad(181, BS / 4);
-		drawPlantlikeQuad(271, BS / 4);
-		break;
-
-	case PLANT_STYLE_HASH2:
-		drawPlantlikeQuad(  1, -BS / 2, true);
-		drawPlantlikeQuad( 91, -BS / 2, true);
-		drawPlantlikeQuad(181, -BS / 2, true);
-		drawPlantlikeQuad(271, -BS / 2, true);
-		break;
-	}
-}
-
-void MapblockMeshGenerator::drawPlantlikeNode()
-{
-	useTile();
-	drawPlantlike();
-}
-
-void MapblockMeshGenerator::drawPlantlikeRootedNode()
-{
-	useTile(0, MATERIAL_FLAG_CRACK_OVERLAY, 0, true);
-	origin += v3f(0.0, BS, 0.0);
-	p.Y++;
-	if (data->m_smooth_lighting) {
-		getSmoothLightFrame();
-	} else {
-		MapNode ntop = data->m_vmanip.getNodeNoEx(blockpos_nodes + p);
-		light = LightPair(getInteriorLight(ntop, 1, nodedef));
-	}
-	drawPlantlike();
-	p.Y--;
-}
-
-void MapblockMeshGenerator::drawFirelikeQuad(float rotation, float opening_angle,
-	float offset_h, float offset_v)
-{
-	v3f vertices[4] = {
-		v3f(-scale, -BS / 2 + scale * 2, 0),
-		v3f( scale, -BS / 2 + scale * 2, 0),
-		v3f( scale, -BS / 2, 0),
-		v3f(-scale, -BS / 2, 0),
-	};
-
-	for (v3f &vertex : vertices) {
-		vertex.rotateYZBy(opening_angle);
-		vertex.Z += offset_h;
-		vertex.rotateXZBy(rotation);
-		vertex.Y += offset_v;
-	}
-	drawQuad(vertices);
-}
-
-void MapblockMeshGenerator::drawFirelikeNode()
-{
-	useTile();
-	scale = BS / 2 * f->visual_scale;
-
-	// Check for adjacent nodes
-	bool neighbors = false;
-	bool neighbor[6] = {0, 0, 0, 0, 0, 0};
-	content_t current = n.getContent();
-	for (int i = 0; i < 6; i++) {
-		v3s16 n2p = blockpos_nodes + p + g_6dirs[i];
-		MapNode n2 = data->m_vmanip.getNodeNoEx(n2p);
-		content_t n2c = n2.getContent();
-		if (n2c != CONTENT_IGNORE && n2c != CONTENT_AIR && n2c != current) {
-			neighbor[i] = true;
-			neighbors = true;
-		}
-	}
-	bool drawBasicFire = neighbor[D6D_YN] || !neighbors;
-	bool drawBottomFire = neighbor[D6D_YP];
-
-	if (drawBasicFire || neighbor[D6D_ZP])
-		drawFirelikeQuad(0, -10, 0.4 * BS);
-	else if (drawBottomFire)
-		drawFirelikeQuad(0, 70, 0.47 * BS, 0.484 * BS);
-
-	if (drawBasicFire || neighbor[D6D_XN])
-		drawFirelikeQuad(90, -10, 0.4 * BS);
-	else if (drawBottomFire)
-		drawFirelikeQuad(90, 70, 0.47 * BS, 0.484 * BS);
-
-	if (drawBasicFire || neighbor[D6D_ZN])
-		drawFirelikeQuad(180, -10, 0.4 * BS);
-	else if (drawBottomFire)
-		drawFirelikeQuad(180, 70, 0.47 * BS, 0.484 * BS);
-
-	if (drawBasicFire || neighbor[D6D_XP])
-		drawFirelikeQuad(270, -10, 0.4 * BS);
-	else if (drawBottomFire)
-		drawFirelikeQuad(270, 70, 0.47 * BS, 0.484 * BS);
-
-	if (drawBasicFire) {
-		drawFirelikeQuad(45, 0, 0.0);
-		drawFirelikeQuad(-45, 0, 0.0);
-	}
-}
-
-void MapblockMeshGenerator::drawFencelikeNode()
-{
-	useTile(0, 0, 0);
-	TileSpec tile_nocrack = tile;
-
-	for (auto &layer : tile_nocrack.layers)
-		layer.material_flags &= ~MATERIAL_FLAG_CRACK;
-
-	// Put wood the right way around in the posts
-	TileSpec tile_rot = tile;
-	tile_rot.rotation = 1;
-
-	static const f32 post_rad = BS / 8;
-	static const f32 bar_rad  = BS / 16;
-	static const f32 bar_len  = BS / 2 - post_rad;
-
-	// The post - always present
-	static const aabb3f post(-post_rad, -BS / 2, -post_rad,
-	                          post_rad,  BS / 2,  post_rad);
-	static const f32 postuv[24] = {
-		0.375, 0.375, 0.625, 0.625,
-		0.375, 0.375, 0.625, 0.625,
-		0.000, 0.000, 0.250, 1.000,
-		0.250, 0.000, 0.500, 1.000,
-		0.500, 0.000, 0.750, 1.000,
-		0.750, 0.000, 1.000, 1.000,
-	};
-	tile = tile_rot;
-	drawAutoLightedCuboid(post, postuv);
-
-	tile = tile_nocrack;
-
-	// 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) {
-		static const aabb3f bar_x1(BS / 2 - bar_len,  BS / 4 - bar_rad, -bar_rad,
-		                           BS / 2 + bar_len,  BS / 4 + bar_rad,  bar_rad);
-		static const aabb3f bar_x2(BS / 2 - bar_len, -BS / 4 - bar_rad, -bar_rad,
-		                           BS / 2 + bar_len, -BS / 4 + bar_rad,  bar_rad);
-		static const f32 xrailuv[24] = {
-			0.000, 0.125, 1.000, 0.250,
-			0.000, 0.250, 1.000, 0.375,
-			0.375, 0.375, 0.500, 0.500,
-			0.625, 0.625, 0.750, 0.750,
-			0.000, 0.500, 1.000, 0.625,
-			0.000, 0.875, 1.000, 1.000,
-		};
-		drawAutoLightedCuboid(bar_x1, xrailuv);
-		drawAutoLightedCuboid(bar_x2, 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) {
-		static const aabb3f bar_z1(-bar_rad,  BS / 4 - bar_rad, BS / 2 - bar_len,
-		                            bar_rad,  BS / 4 + bar_rad, BS / 2 + bar_len);
-		static const aabb3f bar_z2(-bar_rad, -BS / 4 - bar_rad, BS / 2 - bar_len,
-		                            bar_rad, -BS / 4 + bar_rad, BS / 2 + bar_len);
-		static const f32 zrailuv[24] = {
-			0.1875, 0.0625, 0.3125, 0.3125, // cannot rotate; stretch
-			0.2500, 0.0625, 0.3750, 0.3125, // for wood texture instead
-			0.0000, 0.5625, 1.0000, 0.6875,
-			0.0000, 0.3750, 1.0000, 0.5000,
-			0.3750, 0.3750, 0.5000, 0.5000,
-			0.6250, 0.6250, 0.7500, 0.7500,
-		};
-		drawAutoLightedCuboid(bar_z1, zrailuv);
-		drawAutoLightedCuboid(bar_z2, zrailuv);
-	}
-}
-
-bool MapblockMeshGenerator::isSameRail(v3s16 dir)
-{
-	MapNode node2 = data->m_vmanip.getNodeNoEx(blockpos_nodes + p + dir);
-	if (node2.getContent() == n.getContent())
-		return true;
-	const ContentFeatures &def2 = nodedef->get(node2);
-	return ((def2.drawtype == NDT_RAILLIKE) &&
-		(def2.getGroup(raillike_groupname) == raillike_group));
-}
-
-void MapblockMeshGenerator::drawRaillikeNode()
-{
-	static const v3s16 direction[4] = {
-		v3s16( 0, 0,  1),
-		v3s16( 0, 0, -1),
-		v3s16(-1, 0,  0),
-		v3s16( 1, 0,  0),
-	};
-	static const int slope_angle[4] = {0, 180, 90, -90};
-
-	enum RailTile {
-		straight,
-		curved,
-		junction,
-		cross,
-	};
-	struct RailDesc {
-		int tile_index;
-		int angle;
-	};
-	static const RailDesc rail_kinds[16] = {
-		                   // +x -x -z +z
-		                   //-------------
-		{straight,   0}, //  .  .  .  .
-		{straight,   0}, //  .  .  . +Z
-		{straight,   0}, //  .  . -Z  .
-		{straight,   0}, //  .  . -Z +Z
-		{straight,  90}, //  . -X  .  .
-		{  curved, 180}, //  . -X  . +Z
-		{  curved, 270}, //  . -X -Z  .
-		{junction, 180}, //  . -X -Z +Z
-		{straight,  90}, // +X  .  .  .
-		{  curved,  90}, // +X  .  . +Z
-		{  curved,   0}, // +X  . -Z  .
-		{junction,   0}, // +X  . -Z +Z
-		{straight,  90}, // +X -X  .  .
-		{junction,  90}, // +X -X  . +Z
-		{junction, 270}, // +X -X -Z  .
-		{   cross,   0}, // +X -X -Z +Z
-	};
-
-	raillike_group = nodedef->get(n).getGroup(raillike_groupname);
-
-	int code = 0;
-	int angle;
-	int tile_index;
-	bool sloped = false;
-	for (int dir = 0; dir < 4; dir++) {
-		bool rail_above = isSameRail(direction[dir] + v3s16(0, 1, 0));
-		if (rail_above) {
-			sloped = true;
-			angle = slope_angle[dir];
-		}
-		if (rail_above ||
-				isSameRail(direction[dir]) ||
-				isSameRail(direction[dir] + v3s16(0, -1, 0)))
-			code |= 1 << dir;
-	}
-
-	if (sloped) {
-		tile_index = straight;
-	} else {
-		tile_index = rail_kinds[code].tile_index;
-		angle = rail_kinds[code].angle;
-	}
-
-	useTile(tile_index, MATERIAL_FLAG_CRACK_OVERLAY, MATERIAL_FLAG_BACKFACE_CULLING);
-
-	static const float offset = BS / 64;
-	static const float size   = BS / 2;
-	float y2 = sloped ? size : -size;
-	v3f vertices[4] = {
-		v3f(-size,    y2 + offset,  size),
-		v3f( size,    y2 + offset,  size),
-		v3f( size, -size + offset, -size),
-		v3f(-size, -size + offset, -size),
-	};
-	if (angle)
-		for (v3f &vertex : vertices)
-			vertex.rotateXZBy(angle);
-	drawQuad(vertices);
-}
-
-void MapblockMeshGenerator::drawNodeboxNode()
-{
-	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)
-	};
-
-	// we have this order for some reason...
-	static const v3s16 connection_dirs[6] = {
-		v3s16( 0,  1,  0), // top
-		v3s16( 0, -1,  0), // bottom
-		v3s16( 0,  0, -1), // front
-		v3s16(-1,  0,  0), // left
-		v3s16( 0,  0,  1), // back
-		v3s16( 1,  0,  0), // right
-	};
-
-	TileSpec tiles[6];
-	for (int face = 0; face < 6; face++) {
-		// Handles facedir rotation for textures
-		getTile(tile_dirs[face], &tiles[face]);
-	}
-
-	// locate possible neighboring nodes to connect to
-	int neighbors_set = 0;
-	if (f->node_box.type == NODEBOX_CONNECTED) {
-		for (int dir = 0; dir != 6; dir++) {
-			int flag = 1 << dir;
-			v3s16 p2 = blockpos_nodes + p + connection_dirs[dir];
-			MapNode n2 = data->m_vmanip.getNodeNoEx(p2);
-			if (nodedef->nodeboxConnects(n, n2, flag))
-				neighbors_set |= flag;
-		}
-	}
-
-	std::vector<aabb3f> boxes;
-	n.getNodeBoxes(nodedef, &boxes, neighbors_set);
-	for (const auto &box : boxes)
-		drawAutoLightedCuboid(box, nullptr, tiles, 6);
-}
-
-void MapblockMeshGenerator::drawMeshNode()
-{
-	u8 facedir = 0;
-	scene::IMesh* mesh;
-	bool private_mesh; // as a grab/drop pair is not thread-safe
-
-	if (f->param_type_2 == CPT2_FACEDIR ||
-			f->param_type_2 == CPT2_COLORED_FACEDIR) {
-		facedir = n.getFaceDir(nodedef);
-	} else if (f->param_type_2 == CPT2_WALLMOUNTED ||
-			f->param_type_2 == CPT2_COLORED_WALLMOUNTED) {
-		// Convert wallmounted to 6dfacedir.
-		// When cache enabled, it is already converted.
-		facedir = n.getWallMounted(nodedef);
-		if (!enable_mesh_cache)
-			facedir = wallmounted_to_facedir[facedir];
-	}
-
-	if (!data->m_smooth_lighting && f->mesh_ptr[facedir]) {
-		// use cached meshes
-		private_mesh = false;
-		mesh = f->mesh_ptr[facedir];
-	} else if (f->mesh_ptr[0]) {
-		// no cache, clone and rotate mesh
-		private_mesh = true;
-		mesh = cloneMesh(f->mesh_ptr[0]);
-		rotateMeshBy6dFacedir(mesh, facedir);
-		recalculateBoundingBox(mesh);
-		meshmanip->recalculateNormals(mesh, true, false);
-	} else
-		return;
-
-	int mesh_buffer_count = mesh->getMeshBufferCount();
-	for (int j = 0; j < mesh_buffer_count; j++) {
-		useTile(j);
-		scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
-		video::S3DVertex *vertices = (video::S3DVertex *)buf->getVertices();
-		int vertex_count = buf->getVertexCount();
-
-		if (data->m_smooth_lighting) {
-			// Mesh is always private here. So the lighting is applied to each
-			// vertex right here.
-			for (int k = 0; k < vertex_count; k++) {
-				video::S3DVertex &vertex = vertices[k];
-				vertex.Color = blendLightColor(vertex.Pos, vertex.Normal);
-				vertex.Pos += origin;
-			}
-			collector->append(tile, vertices, vertex_count,
-				buf->getIndices(), buf->getIndexCount());
-		} else {
-			// Don't modify the mesh, it may not be private here.
-			// Instead, let the collector process colors, etc.
-			collector->append(tile, vertices, vertex_count,
-				buf->getIndices(), buf->getIndexCount(), origin,
-				color, f->light_source);
-		}
-	}
-	if (private_mesh)
-		mesh->drop();
-}
-
-// also called when the drawtype is known but should have been pre-converted
-void MapblockMeshGenerator::errorUnknownDrawtype()
-{
-	infostream << "Got drawtype " << f->drawtype << std::endl;
-	FATAL_ERROR("Unknown drawtype");
-}
-
-void MapblockMeshGenerator::drawNode()
-{
-	// skip some drawtypes early
-	switch (f->drawtype) {
-		case NDT_NORMAL:   // Drawn by MapBlockMesh
-		case NDT_AIRLIKE:  // Not drawn at all
-		case NDT_LIQUID:   // Drawn by MapBlockMesh
-			return;
-		default:
-			break;
-	}
-	origin = intToFloat(p, BS);
-	if (data->m_smooth_lighting)
-		getSmoothLightFrame();
-	else
-		light = LightPair(getInteriorLight(n, 1, nodedef));
-	switch (f->drawtype) {
-		case NDT_FLOWINGLIQUID:     drawLiquidNode(); break;
-		case NDT_GLASSLIKE:         drawGlasslikeNode(); break;
-		case NDT_GLASSLIKE_FRAMED:  drawGlasslikeFramedNode(); break;
-		case NDT_ALLFACES:          drawAllfacesNode(); break;
-		case NDT_TORCHLIKE:         drawTorchlikeNode(); break;
-		case NDT_SIGNLIKE:          drawSignlikeNode(); break;
-		case NDT_PLANTLIKE:         drawPlantlikeNode(); break;
-		case NDT_PLANTLIKE_ROOTED:  drawPlantlikeRootedNode(); break;
-		case NDT_FIRELIKE:          drawFirelikeNode(); break;
-		case NDT_FENCELIKE:         drawFencelikeNode(); break;
-		case NDT_RAILLIKE:          drawRaillikeNode(); break;
-		case NDT_NODEBOX:           drawNodeboxNode(); break;
-		case NDT_MESH:              drawMeshNode(); break;
-		default:                    errorUnknownDrawtype(); break;
-	}
-}
-
-/*
-	TODO: Fix alpha blending for special nodes
-	Currently only the last element rendered is blended correct
-*/
-void MapblockMeshGenerator::generate()
-{
-	for (p.Z = 0; p.Z < MAP_BLOCKSIZE; p.Z++)
-	for (p.Y = 0; p.Y < MAP_BLOCKSIZE; p.Y++)
-	for (p.X = 0; p.X < MAP_BLOCKSIZE; p.X++) {
-		n = data->m_vmanip.getNodeNoEx(blockpos_nodes + p);
-		f = &nodedef->get(n);
-		drawNode();
-	}
-}
-
-void MapblockMeshGenerator::renderSingle(content_t node)
-{
-	p = {0, 0, 0};
-	n = MapNode(node, 0xff, 0x00);
-	f = &nodedef->get(n);
-	drawNode();
-}