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

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

1 files changed, 0 insertions, 1135 deletions

diff --git a/src/mesh.cpp b/src/mesh.cpp
deleted file mode 100644
index 7fc7531f2..000000000
--- a/src/mesh.cpp
+++ /dev/null
@@ -1,1135 +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 "mesh.h"
-#include "debug.h"
-#include "log.h"
-#include "irrMap.h"
-#include <iostream>
-#include <IAnimatedMesh.h>
-#include <SAnimatedMesh.h>
-#include <IAnimatedMeshSceneNode.h>
-
-// In Irrlicht 1.8 the signature of ITexture::lock was changed from
-// (bool, u32) to (E_TEXTURE_LOCK_MODE, u32).
-#if IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR <= 7
-#define MY_ETLM_READ_ONLY true
-#else
-#define MY_ETLM_READ_ONLY video::ETLM_READ_ONLY
-#endif
-
-inline static void applyShadeFactor(video::SColor& color, float factor)
-{
-	color.setRed(core::clamp(core::round32(color.getRed()*factor), 0, 255));
-	color.setGreen(core::clamp(core::round32(color.getGreen()*factor), 0, 255));
-	color.setBlue(core::clamp(core::round32(color.getBlue()*factor), 0, 255));
-}
-
-void applyFacesShading(video::SColor &color, const v3f &normal)
-{
-	/*
-		Some drawtypes have normals set to (0, 0, 0), this must result in
-		maximum brightness: shade factor 1.0.
-		Shade factors for aligned cube faces are:
-		+Y 1.000000 sqrt(1.0)
-		-Y 0.447213 sqrt(0.2)
-		+-X 0.670820 sqrt(0.45)
-		+-Z 0.836660 sqrt(0.7)
-	*/
-	float x2 = normal.X * normal.X;
-	float y2 = normal.Y * normal.Y;
-	float z2 = normal.Z * normal.Z;
-	if (normal.Y < 0)
-		applyShadeFactor(color, 0.670820f * x2 + 0.447213f * y2 + 0.836660f * z2);
-	else if ((x2 > 1e-3) || (z2 > 1e-3))
-		applyShadeFactor(color, 0.670820f * x2 + 1.000000f * y2 + 0.836660f * z2);
-}
-
-scene::IAnimatedMesh* createCubeMesh(v3f scale)
-{
-	video::SColor c(255,255,255,255);
-	video::S3DVertex vertices[24] =
-	{
-		// Up
-		video::S3DVertex(-0.5,+0.5,-0.5, 0,1,0, c, 0,1),
-		video::S3DVertex(-0.5,+0.5,+0.5, 0,1,0, c, 0,0),
-		video::S3DVertex(+0.5,+0.5,+0.5, 0,1,0, c, 1,0),
-		video::S3DVertex(+0.5,+0.5,-0.5, 0,1,0, c, 1,1),
-		// Down
-		video::S3DVertex(-0.5,-0.5,-0.5, 0,-1,0, c, 0,0),
-		video::S3DVertex(+0.5,-0.5,-0.5, 0,-1,0, c, 1,0),
-		video::S3DVertex(+0.5,-0.5,+0.5, 0,-1,0, c, 1,1),
-		video::S3DVertex(-0.5,-0.5,+0.5, 0,-1,0, c, 0,1),
-		// Right
-		video::S3DVertex(+0.5,-0.5,-0.5, 1,0,0, c, 0,1),
-		video::S3DVertex(+0.5,+0.5,-0.5, 1,0,0, c, 0,0),
-		video::S3DVertex(+0.5,+0.5,+0.5, 1,0,0, c, 1,0),
-		video::S3DVertex(+0.5,-0.5,+0.5, 1,0,0, c, 1,1),
-		// Left
-		video::S3DVertex(-0.5,-0.5,-0.5, -1,0,0, c, 1,1),
-		video::S3DVertex(-0.5,-0.5,+0.5, -1,0,0, c, 0,1),
-		video::S3DVertex(-0.5,+0.5,+0.5, -1,0,0, c, 0,0),
-		video::S3DVertex(-0.5,+0.5,-0.5, -1,0,0, c, 1,0),
-		// Back
-		video::S3DVertex(-0.5,-0.5,+0.5, 0,0,1, c, 1,1),
-		video::S3DVertex(+0.5,-0.5,+0.5, 0,0,1, c, 0,1),
-		video::S3DVertex(+0.5,+0.5,+0.5, 0,0,1, c, 0,0),
-		video::S3DVertex(-0.5,+0.5,+0.5, 0,0,1, c, 1,0),
-		// Front
-		video::S3DVertex(-0.5,-0.5,-0.5, 0,0,-1, c, 0,1),
-		video::S3DVertex(-0.5,+0.5,-0.5, 0,0,-1, c, 0,0),
-		video::S3DVertex(+0.5,+0.5,-0.5, 0,0,-1, c, 1,0),
-		video::S3DVertex(+0.5,-0.5,-0.5, 0,0,-1, c, 1,1),
-	};
-
-	u16 indices[6] = {0,1,2,2,3,0};
-
-	scene::SMesh *mesh = new scene::SMesh();
-	for (u32 i=0; i<6; ++i)
-	{
-		scene::IMeshBuffer *buf = new scene::SMeshBuffer();
-		buf->append(vertices + 4 * i, 4, indices, 6);
-		// Set default material
-		buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
-		buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
-		buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
-		// Add mesh buffer to mesh
-		mesh->addMeshBuffer(buf);
-		buf->drop();
-	}
-
-	scene::SAnimatedMesh *anim_mesh = new scene::SAnimatedMesh(mesh);
-	mesh->drop();
-	scaleMesh(anim_mesh, scale);  // also recalculates bounding box
-	return anim_mesh;
-}
-
-void scaleMesh(scene::IMesh *mesh, v3f scale)
-{
-	if (mesh == NULL)
-		return;
-
-	aabb3f bbox;
-	bbox.reset(0, 0, 0);
-
-	u32 mc = mesh->getMeshBufferCount();
-	for (u32 j = 0; j < mc; j++) {
-		scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
-		const u32 stride = getVertexPitchFromType(buf->getVertexType());
-		u32 vertex_count = buf->getVertexCount();
-		u8 *vertices = (u8 *)buf->getVertices();
-		for (u32 i = 0; i < vertex_count; i++)
-			((video::S3DVertex *)(vertices + i * stride))->Pos *= scale;
-
-		buf->recalculateBoundingBox();
-
-		// calculate total bounding box
-		if (j == 0)
-			bbox = buf->getBoundingBox();
-		else
-			bbox.addInternalBox(buf->getBoundingBox());
-	}
-	mesh->setBoundingBox(bbox);
-}
-
-void translateMesh(scene::IMesh *mesh, v3f vec)
-{
-	if (mesh == NULL)
-		return;
-
-	aabb3f bbox;
-	bbox.reset(0, 0, 0);
-
-	u32 mc = mesh->getMeshBufferCount();
-	for (u32 j = 0; j < mc; j++) {
-		scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
-		const u32 stride = getVertexPitchFromType(buf->getVertexType());
-		u32 vertex_count = buf->getVertexCount();
-		u8 *vertices = (u8 *)buf->getVertices();
-		for (u32 i = 0; i < vertex_count; i++)
-			((video::S3DVertex *)(vertices + i * stride))->Pos += vec;
-
-		buf->recalculateBoundingBox();
-
-		// calculate total bounding box
-		if (j == 0)
-			bbox = buf->getBoundingBox();
-		else
-			bbox.addInternalBox(buf->getBoundingBox());
-	}
-	mesh->setBoundingBox(bbox);
-}
-
-void setMeshBufferColor(scene::IMeshBuffer *buf, const video::SColor &color)
-{
-	const u32 stride = getVertexPitchFromType(buf->getVertexType());
-	u32 vertex_count = buf->getVertexCount();
-	u8 *vertices = (u8 *) buf->getVertices();
-	for (u32 i = 0; i < vertex_count; i++)
-		((video::S3DVertex *) (vertices + i * stride))->Color = color;
-}
-
-void setAnimatedMeshColor(scene::IAnimatedMeshSceneNode *node, const video::SColor &color)
-{
-	for (u32 i = 0; i < node->getMaterialCount(); ++i) {
-		node->getMaterial(i).EmissiveColor = color;
-	}
-}
-
-void setMeshColor(scene::IMesh *mesh, const video::SColor &color)
-{
-	if (mesh == NULL)
-		return;
-
-	u32 mc = mesh->getMeshBufferCount();
-	for (u32 j = 0; j < mc; j++)
-		setMeshBufferColor(mesh->getMeshBuffer(j), color);
-}
-
-void colorizeMeshBuffer(scene::IMeshBuffer *buf, const video::SColor *buffercolor)
-{
-	const u32 stride = getVertexPitchFromType(buf->getVertexType());
-	u32 vertex_count = buf->getVertexCount();
-	u8 *vertices = (u8 *) buf->getVertices();
-	for (u32 i = 0; i < vertex_count; i++) {
-		video::S3DVertex *vertex = (video::S3DVertex *) (vertices + i * stride);
-		video::SColor *vc = &(vertex->Color);
-		// Reset color
-		*vc = *buffercolor;
-		// Apply shading
-		applyFacesShading(*vc, vertex->Normal);
-	}
-}
-
-void setMeshColorByNormalXYZ(scene::IMesh *mesh,
-		const video::SColor &colorX,
-		const video::SColor &colorY,
-		const video::SColor &colorZ)
-{
-	if (mesh == NULL)
-		return;
-
-	u16 mc = mesh->getMeshBufferCount();
-	for (u16 j = 0; j < mc; j++) {
-		scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
-		const u32 stride = getVertexPitchFromType(buf->getVertexType());
-		u32 vertex_count = buf->getVertexCount();
-		u8 *vertices = (u8 *)buf->getVertices();
-		for (u32 i = 0; i < vertex_count; i++) {
-			video::S3DVertex *vertex = (video::S3DVertex *)(vertices + i * stride);
-			f32 x = fabs(vertex->Normal.X);
-			f32 y = fabs(vertex->Normal.Y);
-			f32 z = fabs(vertex->Normal.Z);
-			if (x >= y && x >= z)
-				vertex->Color = colorX;
-			else if (y >= z)
-				vertex->Color = colorY;
-			else
-				vertex->Color = colorZ;
-		}
-	}
-}
-
-void setMeshColorByNormal(scene::IMesh *mesh, const v3f &normal,
-		const video::SColor &color)
-{
-	if (!mesh)
-		return;
-
-	u16 mc = mesh->getMeshBufferCount();
-	for (u16 j = 0; j < mc; j++) {
-		scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
-		const u32 stride = getVertexPitchFromType(buf->getVertexType());
-		u32 vertex_count = buf->getVertexCount();
-		u8 *vertices = (u8 *)buf->getVertices();
-		for (u32 i = 0; i < vertex_count; i++) {
-			video::S3DVertex *vertex = (video::S3DVertex *)(vertices + i * stride);
-			if (normal == vertex->Normal) {
-				vertex->Color = color;
-			}
-		}
-	}
-}
-
-void rotateMeshXYby(scene::IMesh *mesh, f64 degrees)
-{
-	u16 mc = mesh->getMeshBufferCount();
-	for (u16 j = 0; j < mc; j++) {
-		scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
-		const u32 stride = getVertexPitchFromType(buf->getVertexType());
-		u32 vertex_count = buf->getVertexCount();
-		u8 *vertices = (u8 *)buf->getVertices();
-		for (u32 i = 0; i < vertex_count; i++)
-			((video::S3DVertex *)(vertices + i * stride))->Pos.rotateXYBy(degrees);
-	}
-}
-
-void rotateMeshXZby(scene::IMesh *mesh, f64 degrees)
-{
-	u16 mc = mesh->getMeshBufferCount();
-	for (u16 j = 0; j < mc; j++) {
-		scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
-		const u32 stride = getVertexPitchFromType(buf->getVertexType());
-		u32 vertex_count = buf->getVertexCount();
-		u8 *vertices = (u8 *)buf->getVertices();
-		for (u32 i = 0; i < vertex_count; i++)
-			((video::S3DVertex *)(vertices + i * stride))->Pos.rotateXZBy(degrees);
-	}
-}
-
-void rotateMeshYZby(scene::IMesh *mesh, f64 degrees)
-{
-	u16 mc = mesh->getMeshBufferCount();
-	for (u16 j = 0; j < mc; j++) {
-		scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
-		const u32 stride = getVertexPitchFromType(buf->getVertexType());
-		u32 vertex_count = buf->getVertexCount();
-		u8 *vertices = (u8 *)buf->getVertices();
-		for (u32 i = 0; i < vertex_count; i++)
-			((video::S3DVertex *)(vertices + i * stride))->Pos.rotateYZBy(degrees);
-	}
-}
-
-void rotateMeshBy6dFacedir(scene::IMesh *mesh, int facedir)
-{
-	int axisdir = facedir >> 2;
-	facedir &= 0x03;
-
-	u16 mc = mesh->getMeshBufferCount();
-	for (u16 j = 0; j < mc; j++) {
-		scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
-		const u32 stride = getVertexPitchFromType(buf->getVertexType());
-		u32 vertex_count = buf->getVertexCount();
-		u8 *vertices = (u8 *)buf->getVertices();
-		for (u32 i = 0; i < vertex_count; i++) {
-			video::S3DVertex *vertex = (video::S3DVertex *)(vertices + i * stride);
-			switch (axisdir) {
-				case 0:
-					if (facedir == 1)
-						vertex->Pos.rotateXZBy(-90);
-					else if (facedir == 2)
-						vertex->Pos.rotateXZBy(180);
-					else if (facedir == 3)
-						vertex->Pos.rotateXZBy(90);
-					break;
-				case 1: // z+
-					vertex->Pos.rotateYZBy(90);
-					if (facedir == 1)
-						vertex->Pos.rotateXYBy(90);
-					else if (facedir == 2)
-						vertex->Pos.rotateXYBy(180);
-					else if (facedir == 3)
-						vertex->Pos.rotateXYBy(-90);
-					break;
-				case 2: //z-
-					vertex->Pos.rotateYZBy(-90);
-					if (facedir == 1)
-						vertex->Pos.rotateXYBy(-90);
-					else if (facedir == 2)
-						vertex->Pos.rotateXYBy(180);
-					else if (facedir == 3)
-						vertex->Pos.rotateXYBy(90);
-					break;
-				case 3:  //x+
-					vertex->Pos.rotateXYBy(-90);
-					if (facedir == 1)
-						vertex->Pos.rotateYZBy(90);
-					else if (facedir == 2)
-						vertex->Pos.rotateYZBy(180);
-					else if (facedir == 3)
-						vertex->Pos.rotateYZBy(-90);
-					break;
-				case 4:  //x-
-					vertex->Pos.rotateXYBy(90);
-					if (facedir == 1)
-						vertex->Pos.rotateYZBy(-90);
-					else if (facedir == 2)
-						vertex->Pos.rotateYZBy(180);
-					else if (facedir == 3)
-						vertex->Pos.rotateYZBy(90);
-					break;
-				case 5:
-					vertex->Pos.rotateXYBy(-180);
-					if (facedir == 1)
-						vertex->Pos.rotateXZBy(90);
-					else if (facedir == 2)
-						vertex->Pos.rotateXZBy(180);
-					else if (facedir == 3)
-						vertex->Pos.rotateXZBy(-90);
-					break;
-				default:
-					break;
-			}
-		}
-	}
-}
-
-void recalculateBoundingBox(scene::IMesh *src_mesh)
-{
-	aabb3f bbox;
-	bbox.reset(0,0,0);
-	for (u16 j = 0; j < src_mesh->getMeshBufferCount(); j++) {
-		scene::IMeshBuffer *buf = src_mesh->getMeshBuffer(j);
-		buf->recalculateBoundingBox();
-		if (j == 0)
-			bbox = buf->getBoundingBox();
-		else
-			bbox.addInternalBox(buf->getBoundingBox());
-	}
-	src_mesh->setBoundingBox(bbox);
-}
-
-scene::IMeshBuffer* cloneMeshBuffer(scene::IMeshBuffer *mesh_buffer)
-{
-	switch (mesh_buffer->getVertexType()) {
-	case video::EVT_STANDARD: {
-		video::S3DVertex *v = (video::S3DVertex *) mesh_buffer->getVertices();
-		u16 *indices = mesh_buffer->getIndices();
-		scene::SMeshBuffer *cloned_buffer = new scene::SMeshBuffer();
-		cloned_buffer->append(v, mesh_buffer->getVertexCount(), indices,
-			mesh_buffer->getIndexCount());
-		return cloned_buffer;
-	}
-	case video::EVT_2TCOORDS: {
-		video::S3DVertex2TCoords *v =
-			(video::S3DVertex2TCoords *) mesh_buffer->getVertices();
-		u16 *indices = mesh_buffer->getIndices();
-		scene::SMeshBufferTangents *cloned_buffer =
-			new scene::SMeshBufferTangents();
-		cloned_buffer->append(v, mesh_buffer->getVertexCount(), indices,
-			mesh_buffer->getIndexCount());
-		return cloned_buffer;
-	}
-	case video::EVT_TANGENTS: {
-		video::S3DVertexTangents *v =
-			(video::S3DVertexTangents *) mesh_buffer->getVertices();
-		u16 *indices = mesh_buffer->getIndices();
-		scene::SMeshBufferTangents *cloned_buffer =
-			new scene::SMeshBufferTangents();
-		cloned_buffer->append(v, mesh_buffer->getVertexCount(), indices,
-			mesh_buffer->getIndexCount());
-		return cloned_buffer;
-	}
-	}
-	// This should not happen.
-	sanity_check(false);
-	return NULL;
-}
-
-scene::SMesh* cloneMesh(scene::IMesh *src_mesh)
-{
-	scene::SMesh* dst_mesh = new scene::SMesh();
-	for (u16 j = 0; j < src_mesh->getMeshBufferCount(); j++) {
-		scene::IMeshBuffer *temp_buf = cloneMeshBuffer(
-			src_mesh->getMeshBuffer(j));
-		dst_mesh->addMeshBuffer(temp_buf);
-		temp_buf->drop();
-
-	}
-	return dst_mesh;
-}
-
-scene::IMesh* convertNodeboxesToMesh(const std::vector<aabb3f> &boxes,
-		const f32 *uv_coords, float expand)
-{
-	scene::SMesh* dst_mesh = new scene::SMesh();
-
-	for (u16 j = 0; j < 6; j++)
-	{
-		scene::IMeshBuffer *buf = new scene::SMeshBuffer();
-		buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
-		buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
-		dst_mesh->addMeshBuffer(buf);
-		buf->drop();
-	}
-
-	video::SColor c(255,255,255,255);
-
-	for (aabb3f box : boxes) {
-		box.repair();
-
-		box.MinEdge.X -= expand;
-		box.MinEdge.Y -= expand;
-		box.MinEdge.Z -= expand;
-		box.MaxEdge.X += expand;
-		box.MaxEdge.Y += expand;
-		box.MaxEdge.Z += expand;
-
-		// Compute texture UV 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_default[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,
-		};
-
-		// use default texture UV mapping if not provided
-		const f32 *txc = uv_coords ? uv_coords : txc_default;
-
-		v3f min = box.MinEdge;
-		v3f max = box.MaxEdge;
-
-		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]),
-		};
-
-		u16 indices[] = {0,1,2,2,3,0};
-
-		for(u16 j = 0; j < 24; j += 4)
-		{
-			scene::IMeshBuffer *buf = dst_mesh->getMeshBuffer(j / 4);
-			buf->append(vertices + j, 4, indices, 6);
-		}
-	}
-	return dst_mesh;
-}
-
-struct vcache
-{
-	core::array<u32> tris;
-	float score;
-	s16 cachepos;
-	u16 NumActiveTris;
-};
-
-struct tcache
-{
-	u16 ind[3];
-	float score;
-	bool drawn;
-};
-
-const u16 cachesize = 32;
-
-float FindVertexScore(vcache *v)
-{
-	const float CacheDecayPower = 1.5f;
-	const float LastTriScore = 0.75f;
-	const float ValenceBoostScale = 2.0f;
-	const float ValenceBoostPower = 0.5f;
-	const float MaxSizeVertexCache = 32.0f;
-
-	if (v->NumActiveTris == 0)
-	{
-		// No tri needs this vertex!
-		return -1.0f;
-	}
-
-	float Score = 0.0f;
-	int CachePosition = v->cachepos;
-	if (CachePosition < 0)
-	{
-		// Vertex is not in FIFO cache - no score.
-	}
-	else
-	{
-		if (CachePosition < 3)
-		{
-			// This vertex was used in the last triangle,
-			// so it has a fixed score.
-			Score = LastTriScore;
-		}
-		else
-		{
-			// Points for being high in the cache.
-			const float Scaler = 1.0f / (MaxSizeVertexCache - 3);
-			Score = 1.0f - (CachePosition - 3) * Scaler;
-			Score = powf(Score, CacheDecayPower);
-		}
-	}
-
-	// Bonus points for having a low number of tris still to
-	// use the vert, so we get rid of lone verts quickly.
-	float ValenceBoost = powf(v->NumActiveTris,
-				-ValenceBoostPower);
-	Score += ValenceBoostScale * ValenceBoost;
-
-	return Score;
-}
-
-/*
-	A specialized LRU cache for the Forsyth algorithm.
-*/
-
-class f_lru
-{
-
-public:
-	f_lru(vcache *v, tcache *t): vc(v), tc(t)
-	{
-		for (int &i : cache) {
-			i = -1;
-		}
-	}
-
-	// Adds this vertex index and returns the highest-scoring triangle index
-	u32 add(u16 vert, bool updatetris = false)
-	{
-		bool found = false;
-
-		// Mark existing pos as empty
-		for (u16 i = 0; i < cachesize; i++)
-		{
-			if (cache[i] == vert)
-			{
-				// Move everything down
-				for (u16 j = i; j; j--)
-				{
-					cache[j] = cache[j - 1];
-				}
-
-				found = true;
-				break;
-			}
-		}
-
-		if (!found)
-		{
-			if (cache[cachesize-1] != -1)
-				vc[cache[cachesize-1]].cachepos = -1;
-
-			// Move everything down
-			for (u16 i = cachesize - 1; i; i--)
-			{
-				cache[i] = cache[i - 1];
-			}
-		}
-
-		cache[0] = vert;
-
-		u32 highest = 0;
-		float hiscore = 0;
-
-		if (updatetris)
-		{
-			// Update cache positions
-			for (u16 i = 0; i < cachesize; i++)
-			{
-				if (cache[i] == -1)
-					break;
-
-				vc[cache[i]].cachepos = i;
-				vc[cache[i]].score = FindVertexScore(&vc[cache[i]]);
-			}
-
-			// Update triangle scores
-			for (int i : cache) {
-				if (i == -1)
-					break;
-
-				const u16 trisize = vc[i].tris.size();
-				for (u16 t = 0; t < trisize; t++)
-				{
-					tcache *tri = &tc[vc[i].tris[t]];
-
-					tri->score =
-						vc[tri->ind[0]].score +
-						vc[tri->ind[1]].score +
-						vc[tri->ind[2]].score;
-
-					if (tri->score > hiscore)
-					{
-						hiscore = tri->score;
-						highest = vc[i].tris[t];
-					}
-				}
-			}
-		}
-
-		return highest;
-	}
-
-private:
-	s32 cache[cachesize];
-	vcache *vc;
-	tcache *tc;
-};
-
-/**
-Vertex cache optimization according to the Forsyth paper:
-http://home.comcast.net/~tom_forsyth/papers/fast_vert_cache_opt.html
-
-The function is thread-safe (read: you can optimize several meshes in different threads)
-
-\param mesh Source mesh for the operation.  */
-scene::IMesh* createForsythOptimizedMesh(const scene::IMesh *mesh)
-{
-	if (!mesh)
-		return 0;
-
-	scene::SMesh *newmesh = new scene::SMesh();
-	newmesh->BoundingBox = mesh->getBoundingBox();
-
-	const u32 mbcount = mesh->getMeshBufferCount();
-
-	for (u32 b = 0; b < mbcount; ++b)
-	{
-		const scene::IMeshBuffer *mb = mesh->getMeshBuffer(b);
-
-		if (mb->getIndexType() != video::EIT_16BIT)
-		{
-			//os::Printer::log("Cannot optimize a mesh with 32bit indices", ELL_ERROR);
-			newmesh->drop();
-			return 0;
-		}
-
-		const u32 icount = mb->getIndexCount();
-		const u32 tcount = icount / 3;
-		const u32 vcount = mb->getVertexCount();
-		const u16 *ind = mb->getIndices();
-
-		vcache *vc = new vcache[vcount];
-		tcache *tc = new tcache[tcount];
-
-		f_lru lru(vc, tc);
-
-		// init
-		for (u16 i = 0; i < vcount; i++)
-		{
-			vc[i].score = 0;
-			vc[i].cachepos = -1;
-			vc[i].NumActiveTris = 0;
-		}
-
-		// First pass: count how many times a vert is used
-		for (u32 i = 0; i < icount; i += 3)
-		{
-			vc[ind[i]].NumActiveTris++;
-			vc[ind[i + 1]].NumActiveTris++;
-			vc[ind[i + 2]].NumActiveTris++;
-
-			const u32 tri_ind = i/3;
-			tc[tri_ind].ind[0] = ind[i];
-			tc[tri_ind].ind[1] = ind[i + 1];
-			tc[tri_ind].ind[2] = ind[i + 2];
-		}
-
-		// Second pass: list of each triangle
-		for (u32 i = 0; i < tcount; i++)
-		{
-			vc[tc[i].ind[0]].tris.push_back(i);
-			vc[tc[i].ind[1]].tris.push_back(i);
-			vc[tc[i].ind[2]].tris.push_back(i);
-
-			tc[i].drawn = false;
-		}
-
-		// Give initial scores
-		for (u16 i = 0; i < vcount; i++)
-		{
-			vc[i].score = FindVertexScore(&vc[i]);
-		}
-		for (u32 i = 0; i < tcount; i++)
-		{
-			tc[i].score =
-					vc[tc[i].ind[0]].score +
-					vc[tc[i].ind[1]].score +
-					vc[tc[i].ind[2]].score;
-		}
-
-		switch(mb->getVertexType())
-		{
-			case video::EVT_STANDARD:
-			{
-				video::S3DVertex *v = (video::S3DVertex *) mb->getVertices();
-
-				scene::SMeshBuffer *buf = new scene::SMeshBuffer();
-				buf->Material = mb->getMaterial();
-
-				buf->Vertices.reallocate(vcount);
-				buf->Indices.reallocate(icount);
-
-				core::map<const video::S3DVertex, const u16> sind; // search index for fast operation
-				typedef core::map<const video::S3DVertex, const u16>::Node snode;
-
-				// Main algorithm
-				u32 highest = 0;
-				u32 drawcalls = 0;
-				for (;;)
-				{
-					if (tc[highest].drawn)
-					{
-						bool found = false;
-						float hiscore = 0;
-						for (u32 t = 0; t < tcount; t++)
-						{
-							if (!tc[t].drawn)
-							{
-								if (tc[t].score > hiscore)
-								{
-									highest = t;
-									hiscore = tc[t].score;
-									found = true;
-								}
-							}
-						}
-						if (!found)
-							break;
-					}
-
-					// Output the best triangle
-					u16 newind = buf->Vertices.size();
-
-					snode *s = sind.find(v[tc[highest].ind[0]]);
-
-					if (!s)
-					{
-						buf->Vertices.push_back(v[tc[highest].ind[0]]);
-						buf->Indices.push_back(newind);
-						sind.insert(v[tc[highest].ind[0]], newind);
-						newind++;
-					}
-					else
-					{
-						buf->Indices.push_back(s->getValue());
-					}
-
-					s = sind.find(v[tc[highest].ind[1]]);
-
-					if (!s)
-					{
-						buf->Vertices.push_back(v[tc[highest].ind[1]]);
-						buf->Indices.push_back(newind);
-						sind.insert(v[tc[highest].ind[1]], newind);
-						newind++;
-					}
-					else
-					{
-						buf->Indices.push_back(s->getValue());
-					}
-
-					s = sind.find(v[tc[highest].ind[2]]);
-
-					if (!s)
-					{
-						buf->Vertices.push_back(v[tc[highest].ind[2]]);
-						buf->Indices.push_back(newind);
-						sind.insert(v[tc[highest].ind[2]], newind);
-					}
-					else
-					{
-						buf->Indices.push_back(s->getValue());
-					}
-
-					vc[tc[highest].ind[0]].NumActiveTris--;
-					vc[tc[highest].ind[1]].NumActiveTris--;
-					vc[tc[highest].ind[2]].NumActiveTris--;
-
-					tc[highest].drawn = true;
-
-					for (u16 j : tc[highest].ind) {
-						vcache *vert = &vc[j];
-						for (u16 t = 0; t < vert->tris.size(); t++)
-						{
-							if (highest == vert->tris[t])
-							{
-								vert->tris.erase(t);
-								break;
-							}
-						}
-					}
-
-					lru.add(tc[highest].ind[0]);
-					lru.add(tc[highest].ind[1]);
-					highest = lru.add(tc[highest].ind[2], true);
-					drawcalls++;
-				}
-
-				buf->setBoundingBox(mb->getBoundingBox());
-				newmesh->addMeshBuffer(buf);
-				buf->drop();
-			}
-			break;
-			case video::EVT_2TCOORDS:
-			{
-				video::S3DVertex2TCoords *v = (video::S3DVertex2TCoords *) mb->getVertices();
-
-				scene::SMeshBufferLightMap *buf = new scene::SMeshBufferLightMap();
-				buf->Material = mb->getMaterial();
-
-				buf->Vertices.reallocate(vcount);
-				buf->Indices.reallocate(icount);
-
-				core::map<const video::S3DVertex2TCoords, const u16> sind; // search index for fast operation
-				typedef core::map<const video::S3DVertex2TCoords, const u16>::Node snode;
-
-				// Main algorithm
-				u32 highest = 0;
-				u32 drawcalls = 0;
-				for (;;)
-				{
-					if (tc[highest].drawn)
-					{
-						bool found = false;
-						float hiscore = 0;
-						for (u32 t = 0; t < tcount; t++)
-						{
-							if (!tc[t].drawn)
-							{
-								if (tc[t].score > hiscore)
-								{
-									highest = t;
-									hiscore = tc[t].score;
-									found = true;
-								}
-							}
-						}
-						if (!found)
-							break;
-					}
-
-					// Output the best triangle
-					u16 newind = buf->Vertices.size();
-
-					snode *s = sind.find(v[tc[highest].ind[0]]);
-
-					if (!s)
-					{
-						buf->Vertices.push_back(v[tc[highest].ind[0]]);
-						buf->Indices.push_back(newind);
-						sind.insert(v[tc[highest].ind[0]], newind);
-						newind++;
-					}
-					else
-					{
-						buf->Indices.push_back(s->getValue());
-					}
-
-					s = sind.find(v[tc[highest].ind[1]]);
-
-					if (!s)
-					{
-						buf->Vertices.push_back(v[tc[highest].ind[1]]);
-						buf->Indices.push_back(newind);
-						sind.insert(v[tc[highest].ind[1]], newind);
-						newind++;
-					}
-					else
-					{
-						buf->Indices.push_back(s->getValue());
-					}
-
-					s = sind.find(v[tc[highest].ind[2]]);
-
-					if (!s)
-					{
-						buf->Vertices.push_back(v[tc[highest].ind[2]]);
-						buf->Indices.push_back(newind);
-						sind.insert(v[tc[highest].ind[2]], newind);
-					}
-					else
-					{
-						buf->Indices.push_back(s->getValue());
-					}
-
-					vc[tc[highest].ind[0]].NumActiveTris--;
-					vc[tc[highest].ind[1]].NumActiveTris--;
-					vc[tc[highest].ind[2]].NumActiveTris--;
-
-					tc[highest].drawn = true;
-
-					for (u16 j : tc[highest].ind) {
-						vcache *vert = &vc[j];
-						for (u16 t = 0; t < vert->tris.size(); t++)
-						{
-							if (highest == vert->tris[t])
-							{
-								vert->tris.erase(t);
-								break;
-							}
-						}
-					}
-
-					lru.add(tc[highest].ind[0]);
-					lru.add(tc[highest].ind[1]);
-					highest = lru.add(tc[highest].ind[2]);
-					drawcalls++;
-				}
-
-				buf->setBoundingBox(mb->getBoundingBox());
-				newmesh->addMeshBuffer(buf);
-				buf->drop();
-
-			}
-			break;
-			case video::EVT_TANGENTS:
-			{
-				video::S3DVertexTangents *v = (video::S3DVertexTangents *) mb->getVertices();
-
-				scene::SMeshBufferTangents *buf = new scene::SMeshBufferTangents();
-				buf->Material = mb->getMaterial();
-
-				buf->Vertices.reallocate(vcount);
-				buf->Indices.reallocate(icount);
-
-				core::map<const video::S3DVertexTangents, const u16> sind; // search index for fast operation
-				typedef core::map<const video::S3DVertexTangents, const u16>::Node snode;
-
-				// Main algorithm
-				u32 highest = 0;
-				u32 drawcalls = 0;
-				for (;;)
-				{
-					if (tc[highest].drawn)
-					{
-						bool found = false;
-						float hiscore = 0;
-						for (u32 t = 0; t < tcount; t++)
-						{
-							if (!tc[t].drawn)
-							{
-								if (tc[t].score > hiscore)
-								{
-									highest = t;
-									hiscore = tc[t].score;
-									found = true;
-								}
-							}
-						}
-						if (!found)
-							break;
-					}
-
-					// Output the best triangle
-					u16 newind = buf->Vertices.size();
-
-					snode *s = sind.find(v[tc[highest].ind[0]]);
-
-					if (!s)
-					{
-						buf->Vertices.push_back(v[tc[highest].ind[0]]);
-						buf->Indices.push_back(newind);
-						sind.insert(v[tc[highest].ind[0]], newind);
-						newind++;
-					}
-					else
-					{
-						buf->Indices.push_back(s->getValue());
-					}
-
-					s = sind.find(v[tc[highest].ind[1]]);
-
-					if (!s)
-					{
-						buf->Vertices.push_back(v[tc[highest].ind[1]]);
-						buf->Indices.push_back(newind);
-						sind.insert(v[tc[highest].ind[1]], newind);
-						newind++;
-					}
-					else
-					{
-						buf->Indices.push_back(s->getValue());
-					}
-
-					s = sind.find(v[tc[highest].ind[2]]);
-
-					if (!s)
-					{
-						buf->Vertices.push_back(v[tc[highest].ind[2]]);
-						buf->Indices.push_back(newind);
-						sind.insert(v[tc[highest].ind[2]], newind);
-					}
-					else
-					{
-						buf->Indices.push_back(s->getValue());
-					}
-
-					vc[tc[highest].ind[0]].NumActiveTris--;
-					vc[tc[highest].ind[1]].NumActiveTris--;
-					vc[tc[highest].ind[2]].NumActiveTris--;
-
-					tc[highest].drawn = true;
-
-					for (u16 j : tc[highest].ind) {
-						vcache *vert = &vc[j];
-						for (u16 t = 0; t < vert->tris.size(); t++)
-						{
-							if (highest == vert->tris[t])
-							{
-								vert->tris.erase(t);
-								break;
-							}
-						}
-					}
-
-					lru.add(tc[highest].ind[0]);
-					lru.add(tc[highest].ind[1]);
-					highest = lru.add(tc[highest].ind[2]);
-					drawcalls++;
-				}
-
-				buf->setBoundingBox(mb->getBoundingBox());
-				newmesh->addMeshBuffer(buf);
-				buf->drop();
-			}
-			break;
-		}
-
-		delete [] vc;
-		delete [] tc;
-
-	} // for each meshbuffer
-
-	return newmesh;
-}