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[10790] Moved vmap code from shared to game project
After this, realmd code does not contain anymore vmap code Small cleanup in VC100 filter about vmap files Signed-off-by: Neo2003 <Neo.2003@Hotmail.fr>
This commit is contained in:
Neo2003
parent
20cdcd4280
commit
4dd4576581
34 changed files with 357 additions and 380 deletions
567
src/game/vmap/WorldModel.cpp
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567
src/game/vmap/WorldModel.cpp
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/*
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* Copyright (C) 2005-2010 MaNGOS <http://getmangos.com/>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "WorldModel.h"
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#include "VMapDefinitions.h"
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#include "MapTree.h"
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using G3D::Vector3;
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using G3D::Ray;
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template<> struct BoundsTrait<VMAP::GroupModel>
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{
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static void getBounds(const VMAP::GroupModel& obj, G3D::AABox& out) { out = obj.GetBound(); }
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};
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namespace VMAP
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{
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bool IntersectTriangle(const MeshTriangle &tri, std::vector<Vector3>::const_iterator points, const G3D::Ray &ray, float &distance)
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{
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static const float EPS = 1e-5f;
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// See RTR2 ch. 13.7 for the algorithm.
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const Vector3 e1 = points[tri.idx1] - points[tri.idx0];
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const Vector3 e2 = points[tri.idx2] - points[tri.idx0];
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const Vector3 p(ray.direction().cross(e2));
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const float a = e1.dot(p);
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if (abs(a) < EPS) {
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// Determinant is ill-conditioned; abort early
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return false;
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}
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const float f = 1.0f / a;
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const Vector3 s(ray.origin() - points[tri.idx0]);
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const float u = f * s.dot(p);
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if ((u < 0.0f) || (u > 1.0f)) {
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// We hit the plane of the m_geometry, but outside the m_geometry
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return false;
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}
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const Vector3 q(s.cross(e1));
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const float v = f * ray.direction().dot(q);
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if ((v < 0.0f) || ((u + v) > 1.0f)) {
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// We hit the plane of the triangle, but outside the triangle
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return false;
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}
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const float t = f * e2.dot(q);
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if ((t > 0.0f) && (t < distance))
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{
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// This is a new hit, closer than the previous one
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distance = t;
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/* baryCoord[0] = 1.0 - u - v;
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baryCoord[1] = u;
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baryCoord[2] = v; */
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return true;
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}
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// This hit is after the previous hit, so ignore it
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return false;
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}
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class TriBoundFunc
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{
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public:
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TriBoundFunc(std::vector<Vector3> &vert): vertices(vert.begin()) {}
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void operator()(const MeshTriangle &tri, G3D::AABox &out) const
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{
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G3D::Vector3 lo = vertices[tri.idx0];
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G3D::Vector3 hi = lo;
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lo = (lo.min(vertices[tri.idx1])).min(vertices[tri.idx2]);
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hi = (hi.max(vertices[tri.idx1])).max(vertices[tri.idx2]);
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out = G3D::AABox(lo, hi);
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}
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protected:
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const std::vector<Vector3>::const_iterator vertices;
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};
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// ===================== WmoLiquid ==================================
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WmoLiquid::WmoLiquid(uint32 width, uint32 height, const Vector3 &corner, uint32 type):
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iTilesX(width), iTilesY(height), iCorner(corner), iType(type)
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{
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iHeight = new float[(width+1)*(height+1)];
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iFlags = new uint8[width*height];
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}
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WmoLiquid::WmoLiquid(const WmoLiquid &other): iHeight(0), iFlags(0)
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{
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*this = other; // use assignment operator...
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}
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WmoLiquid::~WmoLiquid()
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{
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delete[] iHeight;
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delete[] iFlags;
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}
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WmoLiquid& WmoLiquid::operator=(const WmoLiquid &other)
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{
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if (this == &other)
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return *this;
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iTilesX = other.iTilesX;
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iTilesY = other.iTilesY;
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iCorner = other.iCorner;
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iType = other.iType;
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delete iHeight;
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delete iFlags;
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if (other.iHeight)
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{
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iHeight = new float[(iTilesX+1)*(iTilesY+1)];
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memcpy(iHeight, other.iHeight, (iTilesX+1)*(iTilesY+1)*sizeof(float));
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}
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else
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iHeight = 0;
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if (other.iFlags)
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{
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iFlags = new uint8[iTilesX * iTilesY];
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memcpy(iFlags, other.iFlags, iTilesX * iTilesY);
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}
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else
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iFlags = 0;
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return *this;
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}
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bool WmoLiquid::GetLiquidHeight(const Vector3 &pos, float &liqHeight) const
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{
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float tx_f = (pos.x - iCorner.x)/LIQUID_TILE_SIZE;
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uint32 tx = uint32(tx_f);
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if (tx<0 || tx >= iTilesX) return false;
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float ty_f = (pos.y - iCorner.y)/LIQUID_TILE_SIZE;
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uint32 ty = uint32(ty_f);
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if (ty<0 || ty >= iTilesY) return false;
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// check if tile shall be used for liquid level
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// checking for 0x08 *might* be enough, but disabled tiles always are 0x?F:
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if ((iFlags[tx + ty*iTilesX] & 0x0F) == 0x0F)
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return false;
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// (dx, dy) coordinates inside tile, in [0,1]^2
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float dx = tx_f - (float)tx;
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float dy = ty_f - (float)ty;
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/* Tesselate tile to two triangles (not sure if client does it exactly like this)
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^ dy
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1 x---------x (1,1)
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| (b) / |
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| / |
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| / |
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| / (a) |
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x---------x---> dx
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0 1
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*/
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const uint32 rowOffset = iTilesX + 1;
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if (dx > dy) // case (a)
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{
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float sx = iHeight[tx+1 + ty * rowOffset] - iHeight[tx + ty * rowOffset];
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float sy = iHeight[tx+1 + (ty+1) * rowOffset] - iHeight[tx+1 + ty * rowOffset];
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liqHeight = iHeight[tx + ty * rowOffset] + dx * sx + dy * sy;
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}
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else // case (b)
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{
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float sx = iHeight[tx+1 + (ty+1) * rowOffset] - iHeight[tx + (ty+1) * rowOffset];
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float sy = iHeight[tx + (ty+1) * rowOffset] - iHeight[tx + ty * rowOffset];
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liqHeight = iHeight[tx + ty * rowOffset] + dx * sx + dy * sy;
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}
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return true;
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}
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uint32 WmoLiquid::GetFileSize()
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{
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return 2 * sizeof(uint32) +
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sizeof(Vector3) +
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(iTilesX + 1)*(iTilesY + 1) * sizeof(float) +
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iTilesX * iTilesY;
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}
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bool WmoLiquid::writeToFile(FILE *wf)
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{
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bool result = true;
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if (result && fwrite(&iTilesX, sizeof(uint32), 1, wf) != 1) result = false;
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if (result && fwrite(&iTilesY, sizeof(uint32), 1, wf) != 1) result = false;
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if (result && fwrite(&iCorner, sizeof(Vector3), 1, wf) != 1) result = false;
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if (result && fwrite(&iType, sizeof(uint32), 1, wf) != 1) result = false;
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uint32 size = (iTilesX + 1)*(iTilesY + 1);
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if (result && fwrite(iHeight, sizeof(float), size, wf) != size) result = false;
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size = iTilesX*iTilesY;
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if (result && fwrite(iFlags, sizeof(uint8), size, wf) != size) result = false;
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return result;
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}
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bool WmoLiquid::readFromFile(FILE *rf, WmoLiquid *&out)
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{
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bool result = true;
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WmoLiquid *liquid = new WmoLiquid();
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if (result && fread(&liquid->iTilesX, sizeof(uint32), 1, rf) != 1) result = false;
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if (result && fread(&liquid->iTilesY, sizeof(uint32), 1, rf) != 1) result = false;
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if (result && fread(&liquid->iCorner, sizeof(Vector3), 1, rf) != 1) result = false;
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if (result && fread(&liquid->iType, sizeof(uint32), 1, rf) != 1) result = false;
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uint32 size = (liquid->iTilesX + 1)*(liquid->iTilesY + 1);
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liquid->iHeight = new float[size];
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if (result && fread(liquid->iHeight, sizeof(float), size, rf) != size) result = false;
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size = liquid->iTilesX * liquid->iTilesY;
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liquid->iFlags = new uint8[size];
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if (result && fread(liquid->iFlags, sizeof(uint8), size, rf) != size) result = false;
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if (!result)
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delete liquid;
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out = liquid;
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return result;
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}
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// ===================== GroupModel ==================================
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GroupModel::GroupModel(const GroupModel &other):
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iBound(other.iBound), iMogpFlags(other.iMogpFlags), iGroupWMOID(other.iGroupWMOID),
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vertices(other.vertices), triangles(other.triangles), meshTree(other.meshTree), iLiquid(0)
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{
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if (other.iLiquid)
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iLiquid = new WmoLiquid(*other.iLiquid);
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}
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void GroupModel::setMeshData(std::vector<Vector3> &vert, std::vector<MeshTriangle> &tri)
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{
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vertices.swap(vert);
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triangles.swap(tri);
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TriBoundFunc bFunc(vertices);
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meshTree.build(triangles, bFunc);
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}
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bool GroupModel::writeToFile(FILE *wf)
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{
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bool result = true;
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uint32 chunkSize, count;
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if (result && fwrite(&iBound, sizeof(G3D::AABox), 1, wf) != 1) result = false;
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if (result && fwrite(&iMogpFlags, sizeof(uint32), 1, wf) != 1) result = false;
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if (result && fwrite(&iGroupWMOID, sizeof(uint32), 1, wf) != 1) result = false;
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// write vertices
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if (result && fwrite("VERT", 1, 4, wf) != 4) result = false;
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count = vertices.size();
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chunkSize = sizeof(uint32)+ sizeof(Vector3)*count;
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if (result && fwrite(&chunkSize, sizeof(uint32), 1, wf) != 1) result = false;
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if (result && fwrite(&count, sizeof(uint32), 1, wf) != 1) result = false;
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if (!count) // models without (collision) geometry end here, unsure if they are useful
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return result;
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if (result && fwrite(&vertices[0], sizeof(Vector3), count, wf) != count) result = false;
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// write triangle mesh
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if (result && fwrite("TRIM", 1, 4, wf) != 4) result = false;
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count = triangles.size();
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chunkSize = sizeof(uint32)+ sizeof(MeshTriangle)*count;
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if (result && fwrite(&chunkSize, sizeof(uint32), 1, wf) != 1) result = false;
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if (result && fwrite(&count, sizeof(uint32), 1, wf) != 1) result = false;
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if (result && fwrite(&triangles[0], sizeof(MeshTriangle), count, wf) != count) result = false;
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// write mesh BIH
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if (result && fwrite("MBIH", 1, 4, wf) != 4) result = false;
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if (result) result = meshTree.writeToFile(wf);
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// write liquid data
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if (result && fwrite("LIQU", 1, 4, wf) != 4) result = false;
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if (!iLiquid)
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{
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chunkSize = 0;
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if (result && fwrite(&chunkSize, sizeof(uint32), 1, wf) != 1) result = false;
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return result;
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}
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chunkSize = iLiquid->GetFileSize();
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if (result && fwrite(&chunkSize, sizeof(uint32), 1, wf) != 1) result = false;
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if (result) result = iLiquid->writeToFile(wf);
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return result;
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}
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bool GroupModel::readFromFile(FILE *rf)
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{
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char chunk[8];
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bool result = true;
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uint32 chunkSize, count;
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triangles.clear();
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vertices.clear();
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delete iLiquid;
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iLiquid = 0;
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if (result && fread(&iBound, sizeof(G3D::AABox), 1, rf) != 1) result = false;
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if (result && fread(&iMogpFlags, sizeof(uint32), 1, rf) != 1) result = false;
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if (result && fread(&iGroupWMOID, sizeof(uint32), 1, rf) != 1) result = false;
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// read vertices
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if (result && !readChunk(rf, chunk, "VERT", 4)) result = false;
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if (result && fread(&chunkSize, sizeof(uint32), 1, rf) != 1) result = false;
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if (result && fread(&count, sizeof(uint32), 1, rf) != 1) result = false;
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if (!count) // models without (collision) geometry end here, unsure if they are useful
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return result;
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if (result) vertices.resize(count);
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if (result && fread(&vertices[0], sizeof(Vector3), count, rf) != count) result = false;
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// read triangle mesh
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if (result && !readChunk(rf, chunk, "TRIM", 4)) result = false;
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if (result && fread(&chunkSize, sizeof(uint32), 1, rf) != 1) result = false;
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if (result && fread(&count, sizeof(uint32), 1, rf) != 1) result = false;
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if (result) triangles.resize(count);
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if (result && fread(&triangles[0], sizeof(MeshTriangle), count, rf) != count) result = false;
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// read mesh BIH
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if (result && !readChunk(rf, chunk, "MBIH", 4)) result = false;
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if (result) result = meshTree.readFromFile(rf);
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// write liquid data
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if (result && !readChunk(rf, chunk, "LIQU", 4)) result = false;
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if (result && fread(&chunkSize, sizeof(uint32), 1, rf) != 1) result = false;
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if (result && chunkSize > 0)
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result = WmoLiquid::readFromFile(rf, iLiquid);
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return result;
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}
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struct GModelRayCallback
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{
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GModelRayCallback(const std::vector<MeshTriangle> &tris, const std::vector<Vector3> &vert):
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vertices(vert.begin()), triangles(tris.begin()), hit(false) {}
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bool operator()(const G3D::Ray& ray, uint32 entry, float& distance, bool pStopAtFirstHit)
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{
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bool result = IntersectTriangle(triangles[entry], vertices, ray, distance);
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if (result) hit=true;
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return hit;
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}
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std::vector<Vector3>::const_iterator vertices;
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std::vector<MeshTriangle>::const_iterator triangles;
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bool hit;
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};
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bool GroupModel::IntersectRay(const G3D::Ray &ray, float &distance, bool stopAtFirstHit) const
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{
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if (!triangles.size())
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return false;
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GModelRayCallback callback(triangles, vertices);
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meshTree.intersectRay(ray, callback, distance, stopAtFirstHit);
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return callback.hit;
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}
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bool GroupModel::IsInsideObject(const Vector3 &pos, const Vector3 &down, float &z_dist) const
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{
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if (!triangles.size() || !iBound.contains(pos))
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return false;
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GModelRayCallback callback(triangles, vertices);
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Vector3 rPos = pos - 0.1f * down;
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float dist = G3D::inf();
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G3D::Ray ray(rPos, down);
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bool hit = IntersectRay(ray, dist, false);
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if (hit)
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z_dist = dist - 0.1f;
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return hit;
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}
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bool GroupModel::GetLiquidLevel(const Vector3 &pos, float &liqHeight) const
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{
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if (iLiquid)
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return iLiquid->GetLiquidHeight(pos, liqHeight);
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return false;
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}
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uint32 GroupModel::GetLiquidType() const
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{
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// convert to type mask, matching MAP_LIQUID_TYPE_* defines in Map.h
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if (iLiquid)
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return (1 << iLiquid->GetType());
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return 0;
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}
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// ===================== WorldModel ==================================
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void WorldModel::setGroupModels(std::vector<GroupModel> &models)
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{
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groupModels.swap(models);
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groupTree.build(groupModels, BoundsTrait<GroupModel>::getBounds, 1);
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}
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struct WModelRayCallBack
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{
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WModelRayCallBack(const std::vector<GroupModel> &mod): models(mod.begin()), hit(false) {}
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bool operator()(const G3D::Ray& ray, uint32 entry, float& distance, bool pStopAtFirstHit)
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{
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bool result = models[entry].IntersectRay(ray, distance, pStopAtFirstHit);
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if (result) hit=true;
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return hit;
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}
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std::vector<GroupModel>::const_iterator models;
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bool hit;
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};
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bool WorldModel::IntersectRay(const G3D::Ray &ray, float &distance, bool stopAtFirstHit) const
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{
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// small M2 workaround, maybe better make separate class with virtual intersection funcs
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// in any case, there's no need to use a bound tree if we only have one submodel
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if (groupModels.size() == 1)
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return groupModels[0].IntersectRay(ray, distance, stopAtFirstHit);
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WModelRayCallBack isc(groupModels);
|
||||
groupTree.intersectRay(ray, isc, distance, stopAtFirstHit);
|
||||
return isc.hit;
|
||||
}
|
||||
|
||||
class WModelAreaCallback {
|
||||
public:
|
||||
WModelAreaCallback(const std::vector<GroupModel> &vals, const Vector3 &down):
|
||||
prims(vals.begin()), hit(vals.end()), minVol(G3D::inf()), zDist(G3D::inf()), zVec(down) {}
|
||||
std::vector<GroupModel>::const_iterator prims;
|
||||
std::vector<GroupModel>::const_iterator hit;
|
||||
float minVol;
|
||||
float zDist;
|
||||
Vector3 zVec;
|
||||
void operator()(const Vector3& point, uint32 entry)
|
||||
{
|
||||
float group_Z;
|
||||
//float pVol = prims[entry].GetBound().volume();
|
||||
//if(pVol < minVol)
|
||||
//{
|
||||
/* if (prims[entry].iBound.contains(point)) */
|
||||
if (prims[entry].IsInsideObject(point, zVec, group_Z))
|
||||
{
|
||||
//minVol = pVol;
|
||||
//hit = prims + entry;
|
||||
if (group_Z < zDist)
|
||||
{
|
||||
zDist = group_Z;
|
||||
hit = prims + entry;
|
||||
}
|
||||
#ifdef VMAP_DEBUG
|
||||
const GroupModel &gm = prims[entry];
|
||||
printf("%10u %8X %7.3f,%7.3f,%7.3f | %7.3f,%7.3f,%7.3f | z=%f, p_z=%f\n", gm.GetWmoID(), gm.GetMogpFlags(),
|
||||
gm.GetBound().low().x, gm.GetBound().low().y, gm.GetBound().low().z,
|
||||
gm.GetBound().high().x, gm.GetBound().high().y, gm.GetBound().high().z, group_Z, point.z);
|
||||
#endif
|
||||
}
|
||||
//}
|
||||
//std::cout << "trying to intersect '" << prims[entry].name << "'\n";
|
||||
}
|
||||
};
|
||||
|
||||
bool WorldModel::IntersectPoint(const G3D::Vector3 &p, const G3D::Vector3 &down, float &dist, AreaInfo &info) const
|
||||
{
|
||||
if (!groupModels.size())
|
||||
return false;
|
||||
WModelAreaCallback callback(groupModels, down);
|
||||
groupTree.intersectPoint(p, callback);
|
||||
if (callback.hit != groupModels.end())
|
||||
{
|
||||
info.rootId = RootWMOID;
|
||||
info.groupId = callback.hit->GetWmoID();
|
||||
info.flags = callback.hit->GetMogpFlags();
|
||||
info.result = true;
|
||||
dist = callback.zDist;
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
bool WorldModel::GetLocationInfo(const G3D::Vector3 &p, const G3D::Vector3 &down, float &dist, LocationInfo &info) const
|
||||
{
|
||||
if (!groupModels.size())
|
||||
return false;
|
||||
WModelAreaCallback callback(groupModels, down);
|
||||
groupTree.intersectPoint(p, callback);
|
||||
if (callback.hit != groupModels.end())
|
||||
{
|
||||
info.hitModel = &(*callback.hit);
|
||||
dist = callback.zDist;
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
bool WorldModel::writeFile(const std::string &filename)
|
||||
{
|
||||
FILE *wf = fopen(filename.c_str(), "wb");
|
||||
if (!wf)
|
||||
return false;
|
||||
|
||||
bool result = true;
|
||||
uint32 chunkSize, count;
|
||||
result = fwrite(VMAP_MAGIC,1,8,wf) == 8;
|
||||
if (result && fwrite("WMOD", 1, 4, wf) != 4) result = false;
|
||||
chunkSize = sizeof(uint32) + sizeof(uint32);
|
||||
if (result && fwrite(&chunkSize, sizeof(uint32), 1, wf) != 1) result = false;
|
||||
if (result && fwrite(&RootWMOID, sizeof(uint32), 1, wf) != 1) result = false;
|
||||
|
||||
// write group models
|
||||
count=groupModels.size();
|
||||
if (count)
|
||||
{
|
||||
if (result && fwrite("GMOD", 1, 4, wf) != 4) result = false;
|
||||
//chunkSize = sizeof(uint32)+ sizeof(GroupModel)*count;
|
||||
//if (result && fwrite(&chunkSize, sizeof(uint32), 1, wf) != 1) result = false;
|
||||
if (result && fwrite(&count, sizeof(uint32), 1, wf) != 1) result = false;
|
||||
for (uint32 i=0; i<groupModels.size() && result; ++i)
|
||||
result = groupModels[i].writeToFile(wf);
|
||||
|
||||
// write group BIH
|
||||
if (result && fwrite("GBIH", 1, 4, wf) != 4) result = false;
|
||||
if (result) result = groupTree.writeToFile(wf);
|
||||
}
|
||||
|
||||
fclose(wf);
|
||||
return result;
|
||||
}
|
||||
|
||||
bool WorldModel::readFile(const std::string &filename)
|
||||
{
|
||||
FILE *rf = fopen(filename.c_str(), "rb");
|
||||
if (!rf)
|
||||
return false;
|
||||
|
||||
bool result = true;
|
||||
uint32 chunkSize, count;
|
||||
char chunk[8]; // Ignore the added magic header
|
||||
if (!readChunk(rf, chunk, VMAP_MAGIC, 8)) result = false;
|
||||
|
||||
if (result && !readChunk(rf, chunk, "WMOD", 4)) result = false;
|
||||
if (result && fread(&chunkSize, sizeof(uint32), 1, rf) != 1) result = false;
|
||||
if (result && fread(&RootWMOID, sizeof(uint32), 1, rf) != 1) result = false;
|
||||
|
||||
// read group models
|
||||
if (result && readChunk(rf, chunk, "GMOD", 4))
|
||||
{
|
||||
//if (fread(&chunkSize, sizeof(uint32), 1, rf) != 1) result = false;
|
||||
|
||||
if (result && fread(&count, sizeof(uint32), 1, rf) != 1) result = false;
|
||||
if (result) groupModels.resize(count);
|
||||
//if (result && fread(&groupModels[0], sizeof(GroupModel), count, rf) != count) result = false;
|
||||
for (uint32 i=0; i<count && result; ++i)
|
||||
result = groupModels[i].readFromFile(rf);
|
||||
|
||||
// read group BIH
|
||||
if (result && !readChunk(rf, chunk, "GBIH", 4)) result = false;
|
||||
if (result) result = groupTree.readFromFile(rf);
|
||||
}
|
||||
|
||||
fclose(rf);
|
||||
return result;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue