mirror of
https://port.numenaute.org/aleajactaest/khanat-opennel-code.git
synced 2024-11-18 13:21:40 +00:00
486 lines
12 KiB
C++
486 lines
12 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as
|
|
// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#include <map>
|
|
#include <vector>
|
|
|
|
#include "nel/pacs/collision_mesh_build.h"
|
|
#include "nel/pacs/local_retriever.h"
|
|
#include "nel/pacs/exterior_mesh.h"
|
|
|
|
#include "mouline.h"
|
|
#include "build_surfaces.h"
|
|
|
|
using namespace std;
|
|
using namespace NLMISC;
|
|
using namespace NLPACS;
|
|
|
|
/*
|
|
// a reference on an edge
|
|
struct CEdgeKey
|
|
{
|
|
uint32 V0;
|
|
uint32 V1;
|
|
|
|
CEdgeKey() {}
|
|
CEdgeKey(uint32 v0, uint32 v1) : V0(v0), V1(v1) {}
|
|
|
|
bool operator() (const CEdgeKey &a, const CEdgeKey &b)
|
|
{
|
|
return a.V0 < b.V0 || (a.V0 == b.V0 && a.V1 < b.V1);
|
|
}
|
|
};
|
|
|
|
// the info on an edge
|
|
struct CEdgeInfo
|
|
{
|
|
sint32 Left, LeftEdge;
|
|
sint32 Right, RightEdge;
|
|
|
|
CEdgeInfo(sint32 left=-1, sint32 leftEdge=-1, sint32 right=-1, sint32 rightEdge=-1) : Left(left), LeftEdge(leftEdge), Right(right), RightEdge(rightEdge) {}
|
|
};
|
|
|
|
typedef map<CEdgeKey, CEdgeInfo, CEdgeKey> TLinkRelloc;
|
|
typedef TLinkRelloc::iterator ItTLinkRelloc;
|
|
|
|
|
|
//
|
|
void linkMesh(CCollisionMeshBuild &cmb, bool linkInterior)
|
|
{
|
|
uint i, j;
|
|
TLinkRelloc relloc;
|
|
|
|
// check each edge of each face
|
|
for (i=0; i<cmb.Faces.size(); ++i)
|
|
{
|
|
if (cmb.Faces[i].Surface == CCollisionFace::ExteriorSurface && linkInterior ||
|
|
cmb.Faces[i].Surface >= CCollisionFace::InteriorSurfaceFirst && !linkInterior)
|
|
continue;
|
|
|
|
for (j=0; j<3; ++j)
|
|
{
|
|
cmb.Faces[i].Edge[j] = -1;
|
|
|
|
uint edge = (j+2)%3;
|
|
uint32 va = cmb.Faces[i].V[j],
|
|
vb = cmb.Faces[i].V[(j+1)%3];
|
|
|
|
ItTLinkRelloc it;
|
|
if ((it = relloc.find(CEdgeKey(va, vb))) != relloc.end())
|
|
{
|
|
// in this case, the left triangle of the edge has already been found.
|
|
// should throw an error
|
|
nlerror("On face %d, edge %d: left side of edge (%d,%d) already linked to face %d",
|
|
i, edge, va, vb, (*it).second.Left);
|
|
}
|
|
else if ((it = relloc.find(CEdgeKey(vb, va))) != relloc.end())
|
|
{
|
|
// in this case, we must check the right face has been set yet
|
|
if ((*it).second.Right != -1)
|
|
{
|
|
nlerror("On face %d, edge %d: right side of edge (%d,%d) already linked to face %d",
|
|
i, edge, vb, va, (*it).second.Right);
|
|
}
|
|
|
|
(*it).second.Right = i;
|
|
(*it).second.RightEdge = edge;
|
|
}
|
|
else
|
|
{
|
|
// if the edge wasn't present yet, create it and set it up.
|
|
relloc.insert(make_pair(CEdgeKey(va, vb), CEdgeInfo(i, edge, -1, -1)));
|
|
}
|
|
}
|
|
}
|
|
|
|
// for each checked edge, update the edge info inside the faces
|
|
ItTLinkRelloc it;
|
|
for (it=relloc.begin(); it!=relloc.end(); ++it)
|
|
{
|
|
sint32 left, leftEdge;
|
|
sint32 right, rightEdge;
|
|
|
|
// get the link info on the edge
|
|
left = (*it).second.Left;
|
|
leftEdge = (*it).second.LeftEdge;
|
|
right = (*it).second.Right;
|
|
rightEdge = (*it).second.RightEdge;
|
|
|
|
// update both faces
|
|
if (left != -1)
|
|
cmb.Faces[left].Edge[leftEdge] = right;
|
|
if (right != -1)
|
|
cmb.Faces[right].Edge[rightEdge] = left;
|
|
}
|
|
}
|
|
*/
|
|
|
|
|
|
|
|
void buildExteriorMesh(CCollisionMeshBuild &cmb, CExteriorMesh &em)
|
|
{
|
|
uint startFace = 0;
|
|
vector<CExteriorMesh::CEdge> edges;
|
|
|
|
uint i;
|
|
for (i=0; i<cmb.Faces.size(); ++i)
|
|
{
|
|
cmb.Faces[i].EdgeFlags[0] = false;
|
|
cmb.Faces[i].EdgeFlags[1] = false;
|
|
cmb.Faces[i].EdgeFlags[2] = false;
|
|
}
|
|
|
|
while (true)
|
|
{
|
|
// find the first non interior face
|
|
uint i, edge;
|
|
bool found = false;
|
|
for (i=startFace; i<cmb.Faces.size() && !found; ++i)
|
|
{
|
|
if (cmb.Faces[i].Surface != CCollisionFace::ExteriorSurface)
|
|
continue;
|
|
|
|
for (edge=0; edge<3 && !found; ++edge)
|
|
if (cmb.Faces[i].Edge[edge] == -1 && !cmb.Faces[i].EdgeFlags[edge])
|
|
{
|
|
// nlassert(cmb.Faces[i].Material != 0xdeadbeef);
|
|
found = true;
|
|
break;
|
|
}
|
|
|
|
if (found)
|
|
break;
|
|
}
|
|
|
|
//
|
|
if (!found)
|
|
break;
|
|
|
|
// cmb.Faces[i].Material = 0xdeadbeef;
|
|
|
|
startFace = i+1;
|
|
|
|
sint32 current = i;
|
|
sint32 next = cmb.Faces[current].Edge[edge];
|
|
|
|
sint oedge;
|
|
sint pivot = (edge+1)%3;
|
|
sint nextEdge = edge;
|
|
bool allowThis = true;
|
|
|
|
uint numLink = 0;
|
|
uint firstEdge = (uint)edges.size();
|
|
|
|
vector<CExteriorMesh::CEdge> loop;
|
|
|
|
while (true)
|
|
{
|
|
if (cmb.Faces[current].EdgeFlags[nextEdge])
|
|
{
|
|
// if reaches the end of the border, then quits.
|
|
break;
|
|
}
|
|
else if (next == -1)
|
|
{
|
|
// if the next edge belongs to the border, then go on the same element
|
|
cmb.Faces[current].EdgeFlags[nextEdge] = true;
|
|
/// \todo get the real edge link
|
|
sint link = (cmb.Faces[current].Visibility[nextEdge]) ? -1 : 0; //(numLink++);
|
|
|
|
//edges.push_back(CExteriorMesh::CEdge(cmb.Vertices[cmb.Faces[current].V[pivot]], link));
|
|
loop.push_back(CExteriorMesh::CEdge(cmb.Vertices[cmb.Faces[current].V[pivot]], link));
|
|
|
|
pivot = (pivot+1)%3;
|
|
nextEdge = (nextEdge+1)%3;
|
|
next = cmb.Faces[current].Edge[nextEdge];
|
|
}
|
|
else
|
|
{
|
|
// if the next element is inside the surface, then go to the next element
|
|
for (oedge=0; oedge<3 && cmb.Faces[next].Edge[oedge]!=current; ++oedge)
|
|
;
|
|
nlassert(oedge != 3);
|
|
current = next;
|
|
pivot = (oedge+2)%3;
|
|
nextEdge = (oedge+1)%3;
|
|
next = cmb.Faces[current].Edge[nextEdge];
|
|
}
|
|
}
|
|
|
|
// mark the end of a ext mesh block
|
|
// this way, collisions won't be checked in the pacs engine
|
|
if (loop.size() >= 3)
|
|
{
|
|
uint n = (uint)loop.size();
|
|
while (loop.front().Link >= 0 && loop.back().Link >= 0 && n > 0)
|
|
{
|
|
loop.push_back(loop.front());
|
|
loop.erase(loop.begin());
|
|
--n;
|
|
}
|
|
}
|
|
loop.push_back(loop.front());
|
|
loop.back().Link = -2;
|
|
edges.insert(edges.end(), loop.begin(), loop.end());
|
|
//edges.push_back(edges[firstEdge]);
|
|
//edges.back().Link = -2;
|
|
}
|
|
|
|
bool previousWasLink = false;
|
|
sint previousLink = -1;
|
|
for (i=0; i<edges.size(); ++i)
|
|
{
|
|
// nldebug("ext-mesh: vertex=%d (%.2f,%.2f,%.2f) link=%d", i, edges[i].Start.x, edges[i].Start.y, edges[i].Start.z, edges[i].Link);
|
|
if (edges[i].Link >= 0)
|
|
{
|
|
if (!previousWasLink)
|
|
++previousLink;
|
|
edges[i].Link = previousLink;
|
|
previousWasLink = true;
|
|
}
|
|
else
|
|
{
|
|
previousWasLink = false;
|
|
}
|
|
}
|
|
|
|
em.setEdges(edges);
|
|
}
|
|
|
|
|
|
//
|
|
void linkExteriorToInterior(CLocalRetriever &lr)
|
|
{
|
|
CExteriorMesh em = lr.getExteriorMesh();
|
|
vector<CExteriorMesh::CEdge> edges = em.getEdges();
|
|
vector<CExteriorMesh::CLink> links;
|
|
const vector<CChain> &chains = lr.getChains();
|
|
const vector<COrderedChain3f> &ochains = lr.getFullOrderedChains();
|
|
const vector<uint16> &bchains = lr.getBorderChains();
|
|
|
|
{
|
|
uint i;
|
|
|
|
nlinfo("Border chains (to be linked) for this retriever:");
|
|
|
|
for (i=0; i<bchains.size(); ++i)
|
|
{
|
|
static char buf[512], w[256];
|
|
const CChain &chain = chains[bchains[i]];
|
|
sprintf(buf, "Border chain %d: chain=%d ", i, bchains[i]);
|
|
uint och;
|
|
for (och=0; och<chain.getSubChains().size(); ++och)
|
|
{
|
|
const COrderedChain3f &ochain = ochains[chain.getSubChain(och)];
|
|
sprintf(w, "subchain=%d", chain.getSubChain(och));
|
|
strcat(buf, w);
|
|
uint v;
|
|
for (v=0; v<ochain.getVertices().size(); ++v)
|
|
{
|
|
sprintf(w, " (%.2f,%.2f)", ochain[v].x, ochain[v].y);
|
|
strcat(buf, w);
|
|
}
|
|
}
|
|
|
|
nlinfo("%s", buf);
|
|
}
|
|
}
|
|
|
|
uint edge, ch;
|
|
for (edge=0; edge+1<edges.size(); )
|
|
{
|
|
if (edges[edge].Link == -1 || edges[edge].Link == -2)
|
|
{
|
|
++edge;
|
|
continue;
|
|
}
|
|
|
|
uint startedge = edge;
|
|
uint stopedge;
|
|
|
|
for (stopedge=edge; stopedge+1<edges.size() && edges[stopedge+1].Link == edges[startedge].Link; ++stopedge)
|
|
;
|
|
|
|
edge = stopedge+1;
|
|
|
|
CVector start = edges[startedge].Start, stop = edges[stopedge+1].Start;
|
|
bool found = false;
|
|
|
|
for (ch=0; ch<bchains.size() && !found; ++ch)
|
|
{
|
|
// get the border chain.
|
|
//const CChain &chain = chains[bchains[ch]];
|
|
|
|
const CVector &cstart = lr.getStartVector(bchains[ch]),
|
|
&cstop = lr.getStopVector(bchains[ch]);
|
|
|
|
float d = (start-cstart).norm()+(stop-cstop).norm();
|
|
if (d < 1.0e-1f)
|
|
{
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// create a link
|
|
CExteriorMesh::CLink link;
|
|
|
|
if (!found)
|
|
{
|
|
nlwarning("in linkInteriorToExterior():");
|
|
nlwarning("couldn't find any link to the exterior edge %d-%d!!", startedge, stopedge);
|
|
}
|
|
else
|
|
{
|
|
// set it up to point on the chain and surface
|
|
link.BorderChainId = ch;
|
|
link.ChainId = bchains[ch];
|
|
link.SurfaceId = (uint16)chains[link.ChainId].getLeft();
|
|
}
|
|
|
|
// enlarge the links
|
|
if (edges[startedge].Link >= (sint)links.size())
|
|
links.resize(edges[startedge].Link+1);
|
|
|
|
// if the link already exists, warning
|
|
if (links[edges[startedge].Link].BorderChainId != 0xFFFF ||
|
|
links[edges[startedge].Link].ChainId != 0xFFFF ||
|
|
links[edges[startedge].Link].SurfaceId != 0xFFFF)
|
|
{
|
|
nlwarning("in linkInteriorToExterior():");
|
|
nlwarning("link %d already set!!", edges[startedge].Link);
|
|
}
|
|
|
|
// setup the link
|
|
links[edges[startedge].Link] = link;
|
|
}
|
|
|
|
// em.setEdges(edges);
|
|
em.setLinks(links);
|
|
lr.setExteriorMesh(em);
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//
|
|
void computeRetriever(CCollisionMeshBuild &cmb, CLocalRetriever &lr, CVector &translation, bool useCmbTrivialTranslation)
|
|
{
|
|
// set the retriever
|
|
lr.setType(CLocalRetriever::Interior);
|
|
|
|
// if should use the own cmb bbox, then compute it
|
|
if (useCmbTrivialTranslation)
|
|
{
|
|
translation = cmb.computeTrivialTranslation();
|
|
// snap the translation vector to a meter wide grid
|
|
translation.x = (float)ceil(translation.x);
|
|
translation.y = (float)ceil(translation.y);
|
|
translation.z = 0.0f;
|
|
}
|
|
|
|
uint i, j;
|
|
|
|
for (i=0; i<cmb.Faces.size(); ++i)
|
|
{
|
|
CVector normal = ((cmb.Vertices[cmb.Faces[i].V[1]]-cmb.Vertices[cmb.Faces[i].V[0]])^(cmb.Vertices[cmb.Faces[i].V[2]]-cmb.Vertices[cmb.Faces[i].V[0]])).normed();
|
|
|
|
if (normal.z < 0.0f)
|
|
{
|
|
nlwarning("Face %d in cmb (%s) has negative normal! -- face is flipped", i, cmb.Faces[i].Surface == CCollisionFace::InteriorSurfaceFirst ? "interior" : "exterior");
|
|
/*
|
|
std::swap(cmb.Faces[i].V[1], cmb.Faces[i].V[2]);
|
|
std::swap(cmb.Faces[i].Visibility[1], cmb.Faces[i].Visibility[2]);
|
|
*/
|
|
}
|
|
}
|
|
|
|
// first link faces
|
|
/*
|
|
linkMesh(cmb, false);
|
|
linkMesh(cmb, true);
|
|
*/
|
|
vector<string> errors;
|
|
|
|
cmb.link(false, errors);
|
|
cmb.link(true, errors);
|
|
|
|
if (!errors.empty())
|
|
{
|
|
nlwarning("Edge issues reported !!");
|
|
uint i;
|
|
for (i=0; i<errors.size(); ++i)
|
|
nlwarning("%s", errors[i].c_str());
|
|
nlerror("Can't continue.");
|
|
}
|
|
|
|
// translate the meshbuild to the local axis
|
|
cmb.translate(translation);
|
|
|
|
// find the exterior mesh border
|
|
CExteriorMesh extMesh;
|
|
buildExteriorMesh(cmb, extMesh);
|
|
lr.setExteriorMesh(extMesh);
|
|
|
|
// build the surfaces in the local retriever
|
|
buildSurfaces(cmb, lr);
|
|
|
|
// create the snapping faces and vertices
|
|
// after the build surfaces because the InternalSurfaceId is filled within buildSurfaces()...
|
|
buildSnapping(cmb, lr);
|
|
|
|
//
|
|
lr.computeLoopsAndTips();
|
|
|
|
lr.findBorderChains();
|
|
lr.updateChainIds();
|
|
lr.computeTopologies();
|
|
|
|
lr.unify();
|
|
|
|
lr.computeCollisionChainQuad();
|
|
/*
|
|
//
|
|
for (i=0; i<lr.getSurfaces().size(); ++i)
|
|
lr.dumpSurface(i);
|
|
*/
|
|
//
|
|
linkExteriorToInterior(lr);
|
|
|
|
// compute the bbox of the retriever
|
|
CAABBox bbox;
|
|
bool first = true;
|
|
|
|
for (i=0; i<extMesh.getEdges().size(); ++i)
|
|
if (!first)
|
|
bbox.extend(extMesh.getEdge(i).Start);
|
|
else
|
|
bbox.setCenter(extMesh.getEdge(i).Start), first=false;
|
|
|
|
for (i=0; i<lr.getOrderedChains().size(); ++i)
|
|
for (j=0; j<lr.getOrderedChain(i).getVertices().size(); ++j)
|
|
if (!first)
|
|
bbox.extend(lr.getOrderedChain(i)[j].unpack3f());
|
|
else
|
|
bbox.setCenter(lr.getOrderedChain(i)[j].unpack3f()), first=false;
|
|
|
|
CVector bboxhs = bbox.getHalfSize();
|
|
bboxhs.z = 10000.0f;
|
|
bbox.setHalfSize(bboxhs);
|
|
|
|
lr.setBBox(bbox);
|
|
}
|