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745 lines
22 KiB
C++
745 lines
22 KiB
C++
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// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
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// Copyright (C) 2010 Winch Gate Property Limited
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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 Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (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 Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "stdpch.h"
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// TMP TMP
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#include "nel/pacs/u_global_retriever.h"
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#include "nel/pacs/u_global_position.h"
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#include "nel/3d/u_driver.h"
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#include "nel/3d/u_visual_collision_manager.h"
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#include "nel/misc/matrix.h"
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#include "nel/misc/hierarchical_timer.h"
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#include "nel/misc/system_info.h"
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#include "precipitation_clip_grid.h"
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#include <algorithm>
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using namespace NLMISC;
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using namespace NL3D;
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//CHeightGrid HeightGrid;
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extern UVisualCollisionManager *CollisionManager;
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/////////////////
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// CHeightGrid //
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/////////////////
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/*
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//***********************************************************************************
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void CHeightGrid::tileAdded(const CTileAddedInfo &infos)
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{
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// insert in point grid
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_TileInfos[infos.TileID] = infos;
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CVector2f corners[3];
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corners[0].set(infos.Corners[0].x, infos.Corners[0].y);
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corners[1].set(infos.Corners[1].x, infos.Corners[1].y);
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corners[2].set(infos.Corners[2].x, infos.Corners[2].y);
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addTri(corners, infos.Center.z);
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corners[0].set(infos.Corners[0].x, infos.Corners[0].y);
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corners[1].set(infos.Corners[2].x, infos.Corners[2].y);
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corners[2].set(infos.Corners[3].x, infos.Corners[3].y);
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addTri(corners, infos.Center.z);
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}
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//***********************************************************************************
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void CHeightGrid::tileRemoved(uint64 id)
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{
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CHashMap<uint64, CTileAddedInfo>::iterator it = _TileInfos.find(id);
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nlassert(it != _TileInfos.end());
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CVector2f corners[3];
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const CTileAddedInfo &infos = it->second;
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corners[0].set(infos.Corners[0].x, infos.Corners[0].y);
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corners[1].set(infos.Corners[1].x, infos.Corners[1].y);
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corners[2].set(infos.Corners[2].x, infos.Corners[2].y);
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removeTri(corners, infos.Center.z);
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corners[0].set(infos.Corners[0].x, infos.Corners[0].y);
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corners[1].set(infos.Corners[2].x, infos.Corners[2].y);
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corners[2].set(infos.Corners[3].x, infos.Corners[3].y);
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removeTri(corners, infos.Center.z);
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}
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//***********************************************************************************
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void CHeightGrid::addTri(const CVector2f corners[3], float z)
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{
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_Tri.Vertices.resize(3);
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_Tri.Vertices[0] = corners[0];
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_Tri.Vertices[1] = corners[1];
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_Tri.Vertices[2] = corners[2];
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sint minY;
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_Tri.computeBorders(_Rasters, minY);
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if (_Rasters.empty()) return;
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sint numRasters = _Rasters.size();
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CHeightGridWrapped::CGridElem ge;
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ge.Z = z;
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for(sint y = 0; y < numRasters; ++y)
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{
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ge.Y = y + minY;
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const CPolygon2D::TRaster &r = _Rasters[y];
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for (ge.X = r.first; ge.X <= r.second; ++ge.X)
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{
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_ZGridWrapped.insert(ge);
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if (ge.X >= _PosX && ge.X < _PosX + (sint) _GridSize &&
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ge.Y >= _PosY && ge.Y < _PosY + (sint) _GridSize
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)
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{
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_ZGrid(ge.X - _PosX, ge.Y - _PosY) = std::max(z, _ZGrid(ge.X - _PosX, ge.Y - _PosY));
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}
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}
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}
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}
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//***********************************************************************************
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void CHeightGrid::removeTri(const CVector2f corners[3], float z)
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{
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_Tri.Vertices.resize(3);
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_Tri.Vertices[0] = corners[0];
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_Tri.Vertices[1] = corners[1];
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_Tri.Vertices[2] = corners[2];
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sint minY;
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_Tri.computeBorders(_Rasters, minY);
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if (_Rasters.empty()) return;
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sint numRasters = _Rasters.size();
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CHeightGridWrapped::CGridElem ge;
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ge.Z = z;
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for(sint y = 0; y < numRasters; ++y)
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{
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ge.Y = y + minY;
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const CPolygon2D::TRaster &r = _Rasters[y];
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for (ge.X = r.first; ge.X <= r.second; ++ge.X)
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{
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_ZGridWrapped.remove(ge);
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}
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}
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}
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//***********************************************************************************
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CHeightGrid::CHeightGrid()
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{
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_CellSize = 0.f;
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_GridSize = 0;
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_MinZ = HEIGHT_GRID_MIN_Z;
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_PosX = 0;
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_PosY = 0;
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_SizeMask = 0;
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_InvCellSize = 1.f;
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updateBBox();
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}
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//***********************************************************************************
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void CHeightGrid::init(float cellSize, uint heightGridSize, uint wrappedHeightGridSize, float minZ)
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{
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nlassert(cellSize > 0.f);
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nlassert(heightGridSize > 0);
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nlassert(NLMISC::isPowerOf2(heightGridSize));
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nlassert(NLMISC::isPowerOf2(wrappedHeightGridSize));
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_ZGrid.init(heightGridSize, heightGridSize, minZ);
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_ZGridWrapped.init(wrappedHeightGridSize, cellSize);
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_MinZ = minZ;
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_CellSize = cellSize;
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_GridSize = heightGridSize;
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_InvCellSize = 1.f / _CellSize;
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updateBBox();
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}
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//***********************************************************************************
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void CHeightGrid::updateBBox()
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{
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_BBox.setMinMax(CVector(_PosX * _CellSize, _PosY * _CellSize, _MinZ),
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CVector((_PosX + _GridSize) * _CellSize, (_PosY + _GridSize) * _CellSize, -_MinZ));
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}
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//***********************************************************************************
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void CHeightGrid::update(const CVector &newPos)
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{
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if (_CellSize == 0.f) return;
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sint newX = (sint) floorf(newPos.x / _CellSize) - (_GridSize >> 1);
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sint newY = (sint) floorf(newPos.y / _CellSize) - (_GridSize >> 1);
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if (newX == _PosX && newY == _PosY) return;
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// compute displacement of the grid
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sint offsetX = _PosX - newX;
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sint offsetY = _PosY - newY;
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// compute parts of the grid that have been discarded
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_ZGrid.getDiscardRects(offsetX, offsetY, _UpdateRects);
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for(uint k = 0; k < _UpdateRects.size(); ++k)
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{
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discardRect(_UpdateRects[k]);
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}
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_ZGrid.move(offsetX, offsetY);
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updateBBox();
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// compute parts of the grid that must be updated
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_ZGrid.getUpdateRects(offsetX, offsetY, _UpdateRects);
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_PosX = newX;
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_PosY = newY;
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for(uint k = 0; k < _UpdateRects.size(); ++k)
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{
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updateRect(_UpdateRects[k]);
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}
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}
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//***********************************************************************************
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void CHeightGrid::addCollisionMesh(const UVisualCollisionManager::CMeshInstanceColInfo &colMesh)
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{
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const std::vector<CVector> &vertices = colMesh.Mesh.getVertices();
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_CurrMeshVertices.resize(vertices.size());
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std::vector<CVector>::const_iterator src, srcEnd;
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std::vector<CVector>::iterator dest;
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srcEnd = _CurrMeshVertices.end();
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dest = _CurrMeshVertices.begin();
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// transform vertices in world
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for (src = vertices.begin(); src != srcEnd; ++ src)
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{
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*dest = *colMesh.WorldMatrix * *src;
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++ dest;
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}
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std::vector<uint16> tris = colMesh.Mesh.getTriangles();
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uint triSize = tris.size();
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uint currVert = 0;
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// Insert tri in the grid
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// Because of low resolution, only a few tri will actually be inserted
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while (currVert != triSize)
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{
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const CVector &v0 = _CurrMeshVertices[tris[currVert]];
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const CVector &v1 = _CurrMeshVertices[tris[currVert + 1]];
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const CVector &v2 = _CurrMeshVertices[tris[currVert + 2]];
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// project corners in 2D
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CVector2f corners[3];
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corners[0].set(v0.x, v0.y);
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corners[1].set(v1.x, v1.y);
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corners[2].set(v2.x, v2.y);
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addTri(corners, maxof(v0.z, v1.z, v2.z));
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currVert += 3;
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}
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_Meshs[colMesh.ID] = colMesh;
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}
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//***********************************************************************************
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void CHeightGrid::removeCollisionMesh(uint id)
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{
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TColMeshMap::iterator it = _Meshs.find(id);
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if (it == _Meshs.end()) return;
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const std::vector<CVector> &vertices = it->second.Mesh.getVertices();
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_CurrMeshVertices.resize(vertices.size());
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std::vector<CVector>::const_iterator src, srcEnd;
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std::vector<CVector>::iterator dest;
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srcEnd = vertices.end();
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dest = _CurrMeshVertices.begin();
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// transform vertices in world
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const CMatrix &worldMat = *(it->second.WorldMatrix);
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for (src = vertices.begin(); src != srcEnd; ++ src)
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{
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*dest = worldMat * *src;
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++ dest;
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}
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std::vector<uint16> tris = it->second.Mesh.getTriangles();
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uint triSize = tris.size();
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uint currVert = 0;
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while (currVert != triSize)
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{
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const CVector v0 = _CurrMeshVertices[tris[currVert]];
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const CVector v1 = _CurrMeshVertices[tris[currVert + 1]];
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const CVector v2 = _CurrMeshVertices[tris[currVert + 2]];
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// project corners in 2D
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CVector2f corners[3];
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corners[0].set(v0.x, v0.y);
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corners[1].set(v1.x, v1.y);
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corners[2].set(v2.x, v2.y);
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removeTri(corners, maxof(v0.z, v1.z, v2.z));
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currVert += 3;
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}
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_Meshs.erase(it);
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}
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//***********************************************************************************
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void CHeightGrid::updateRect(const NLMISC::CRect &rect)
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{
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// add incoming meshs into the quad grid
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CAABBox bbox;
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bbox.setMinMax(CVector(rect.X * _CellSize, rect.Y * _CellSize, _MinZ), CVector((rect.X + rect.Width) * _CellSize, (rect.Y + rect.Height) * _CellSize, - _MinZ));
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CollisionManager->getMeshs(bbox, _UpdateMeshs);
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for(uint k = 0; k < _UpdateMeshs.size(); ++k)
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{
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if (_Meshs.count(_UpdateMeshs[k].ID) == 0)
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{
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// not already inserted
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addCollisionMesh(_UpdateMeshs[k]);
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}
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}
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// Update height grid from the values in the quad grid
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for (uint y = (uint) rect.Y; y < (uint) (rect.Y + rect.Height); ++y)
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{
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for (uint x = (uint) rect.X; x < (uint) (rect.X + rect.Width); ++x)
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{
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updateCell(x, y);
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}
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}
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}
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//***********************************************************************************
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void CHeightGrid::discardRect(const CRect &rect)
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{
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// remove meshs that are totally out of the grid
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CAABBox bbox;
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bbox.setMinMax(CVector(rect.X * _CellSize, rect.Y * _CellSize, _MinZ), CVector((rect.X + rect.Width) * _CellSize, (rect.Y + rect.Width) * _CellSize, - _MinZ));
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CollisionManager->getMeshs(bbox, _UpdateMeshs);
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for(uint k = 0; k < _UpdateMeshs.size(); ++k)
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{
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if (!_UpdateMeshs[k].WorldBBox->intersect(_BBox))
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{
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removeCollisionMesh(_UpdateMeshs[k].ID); // remove mesh (no-op if already removed)
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}
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}
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}
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//***********************************************************************************
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void CHeightGrid::updateCell(sint px, sint py)
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{
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sint worldX = px + _PosX;
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sint worldY = py + _PosY;
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float z = _MinZ;
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const CHeightGridWrapped::TGridElemList &pl = _ZGridWrapped.getGridElemList(worldX, worldY);
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for(CHeightGridWrapped::TGridElemList::const_iterator it = pl.begin(); it != pl.end(); ++it)
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{
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const CHeightGridWrapped::CGridElem &ge = *it;
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if (ge.X == worldX && ge.Y == worldY)
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{
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z = std::max(z, ge.Z);
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}
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}
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_ZGrid(px, py) = z;
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}
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//***********************************************************************************
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void CHeightGrid::display(NL3D::UDriver &drv) const
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{
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extern UCamera MainCam;
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||
|
|
drv.setModelMatrix(CMatrix::Identity);
|
||
|
|
drv.setViewMatrix(MainCam.getMatrix().inverted());
|
||
|
|
drv.setFrustum(MainCam.getFrustum());
|
||
|
|
UMaterial m = drv.createMaterial();
|
||
|
|
m.initUnlit();
|
||
|
|
m.setColor(CRGBA::Red);
|
||
|
|
for (sint y = _PosY; y < (sint) (_PosY + _GridSize - 1); ++y)
|
||
|
|
{
|
||
|
|
for (sint x = _PosX; x < (sint) (_PosX + _GridSize - 1); ++x)
|
||
|
|
{
|
||
|
|
float z0 = _ZGrid(x - _PosX, y - _PosY);
|
||
|
|
float z1 = _ZGrid(x + 1 - _PosX, y - _PosY);
|
||
|
|
float z2 = _ZGrid(x + 1 - _PosX, y + 1 - _PosY);
|
||
|
|
float z3 = _ZGrid(x - _PosX, y + 1 - _PosY);
|
||
|
|
//
|
||
|
|
CVector pos[4];
|
||
|
|
CVector pos0 = gridCoordToWorld(x, y) + z0 * CVector::K;
|
||
|
|
CVector pos1 = gridCoordToWorld(x + 1, y) + z1 * CVector::K;
|
||
|
|
CVector pos2 = gridCoordToWorld(x + 1, y + 1) + z2 * CVector::K;
|
||
|
|
CVector pos3 = gridCoordToWorld(x, y + 1) + z3 * CVector::K;
|
||
|
|
drv.drawLine(CLine(pos0, pos1), m);
|
||
|
|
drv.drawLine(CLine(pos1, pos2), m);
|
||
|
|
drv.drawLine(CLine(pos2, pos3), m);
|
||
|
|
drv.drawLine(CLine(pos3, pos0), m);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
m.setColor(CRGBA::Green);
|
||
|
|
// draw dots of the point grid
|
||
|
|
//for (sint y = 0; y < (sint) _PointGrid.getSize(); ++y)
|
||
|
|
//{
|
||
|
|
// for (sint x = 0; x < (sint) _PointGrid.getSize(); ++x)
|
||
|
|
// {
|
||
|
|
// const CPointGrid::TPointList &pl = _PointGrid.getPointList(x ,y);
|
||
|
|
// for(CPointGrid::TPointList::const_iterator it = pl.begin(); it != pl.end(); ++it)
|
||
|
|
// {
|
||
|
|
// drv.drawLine(CLine(*it, *it + CVector::K), m);
|
||
|
|
// }
|
||
|
|
// }
|
||
|
|
//}
|
||
|
|
|
||
|
|
drv.deleteMaterial(m);
|
||
|
|
// info : check max size of vectors
|
||
|
|
nlwarning("Max list length = %d", (int) _ZGridWrapped.getListMaxLength());
|
||
|
|
}
|
||
|
|
|
||
|
|
////////////////
|
||
|
|
// CPointGrid //
|
||
|
|
////////////////
|
||
|
|
|
||
|
|
//*********************************************************************************
|
||
|
|
CHeightGridWrapped::CHeightGridWrapped()
|
||
|
|
{
|
||
|
|
_CellSize = 0.f;
|
||
|
|
_SizeMask = 0;
|
||
|
|
_InvCellSize = 1.f;
|
||
|
|
}
|
||
|
|
|
||
|
|
//*********************************************************************************
|
||
|
|
uint CHeightGridWrapped::getListMaxLength() const
|
||
|
|
{
|
||
|
|
uint sizeMax = 0;
|
||
|
|
for(CArray2D<TGridElemList>::const_iterator it = _Grid.begin(); it != _Grid.end(); ++it)
|
||
|
|
{
|
||
|
|
sizeMax = std::max(sizeMax, (uint) it->size());
|
||
|
|
}
|
||
|
|
return sizeMax;
|
||
|
|
}
|
||
|
|
|
||
|
|
//*********************************************************************************
|
||
|
|
void CHeightGridWrapped::init(uint size, float cellSize)
|
||
|
|
{
|
||
|
|
nlassert(cellSize > 0.f)
|
||
|
|
nlassert(NLMISC::isPowerOf2(size));
|
||
|
|
uint sizePower= NLMISC::getPowerOf2(size);
|
||
|
|
_SizeMask = (1 << sizePower) - 1;
|
||
|
|
_CellSize = cellSize;
|
||
|
|
_InvCellSize = 1.f / _CellSize;
|
||
|
|
_Grid.init(size, size);
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
|
||
|
|
//=====================================================================
|
||
|
|
CPrecipitationClipGrid::CPrecipitationClipGrid()
|
||
|
|
{
|
||
|
|
clear();
|
||
|
|
touch();
|
||
|
|
}
|
||
|
|
|
||
|
|
//=====================================================================
|
||
|
|
void CPrecipitationClipGrid::initGrid(uint size, float gridEltSizeX, float gridEltSizeY)
|
||
|
|
{
|
||
|
|
if (gridEltSizeX <= 0.f || gridEltSizeY <= 0.f || size == 0)
|
||
|
|
{
|
||
|
|
clear();
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
_Grid.clear();
|
||
|
|
_Grid.resize((size + 1) * (size + 1));
|
||
|
|
_XPos = 0;
|
||
|
|
_YPos = 0;
|
||
|
|
_EltSizeX = gridEltSizeX;
|
||
|
|
_EltSizeY = gridEltSizeY;
|
||
|
|
_Size = size;
|
||
|
|
}
|
||
|
|
|
||
|
|
//=====================================================================
|
||
|
|
void CPrecipitationClipGrid::updateGrid(const NLMISC::CVector &/* userPos */, NLPACS::UGlobalRetriever * /* gr */)
|
||
|
|
{
|
||
|
|
// temp
|
||
|
|
return;
|
||
|
|
//
|
||
|
|
/*
|
||
|
|
if (_EltSizeX == 0.f) return;
|
||
|
|
sint newX = (sint) floorf(userPos.x / _EltSizeX) - (_Size >> 1);
|
||
|
|
sint newY = (sint) floorf(userPos.y / _EltSizeY) - (_Size >> 1);
|
||
|
|
|
||
|
|
if (_Touched)
|
||
|
|
{
|
||
|
|
#if defined(NL_CPU_INTEL) && defined(NL_DEBUG)
|
||
|
|
CSimpleClock clock;
|
||
|
|
CSimpleClock::init();
|
||
|
|
clock.start();
|
||
|
|
#endif
|
||
|
|
// recompute the whole grid
|
||
|
|
updateGridPart(newX, newY, 0, 0, _Size + 1, _Size + 1, gr);
|
||
|
|
#if defined(NL_CPU_INTEL) && defined(NL_DEBUG)
|
||
|
|
clock.stop();
|
||
|
|
// display number of millisecond needed for the update
|
||
|
|
double freq = (double) CSystemInfo::getProcessorFrequency();
|
||
|
|
double msPerTick = 1000 / (double) freq;
|
||
|
|
nldebug("Updated precipitation clip grid : time = %.2f ms", (float) (clock.getNumTicks() * msPerTick));
|
||
|
|
// display the height in the clip grid
|
||
|
|
printGridValues();
|
||
|
|
#endif
|
||
|
|
// update pos
|
||
|
|
_XPos = newX;
|
||
|
|
_YPos = newY;
|
||
|
|
_Touched = false;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (newX == _XPos && newY == _YPos)
|
||
|
|
{
|
||
|
|
return; // the grid hasn't changed its pos
|
||
|
|
}
|
||
|
|
|
||
|
|
// move the grid
|
||
|
|
sint offsetX = newX - _XPos;
|
||
|
|
sint offsetY = newY - _YPos;
|
||
|
|
|
||
|
|
moveGrid(- offsetX, - offsetY);
|
||
|
|
// complete new positions
|
||
|
|
|
||
|
|
#if defined(NL_CPU_INTEL) && defined(NL_DEBUG)
|
||
|
|
CSimpleClock clock;
|
||
|
|
CSimpleClock::init();
|
||
|
|
clock.start();
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// Update right or left part.
|
||
|
|
if (newX > _XPos) // moved right ?
|
||
|
|
{
|
||
|
|
// the width to update
|
||
|
|
uint width = std::min((uint) offsetX, _Size + 1);
|
||
|
|
// the the grid moved top or bottom, exclude this part
|
||
|
|
sint height = _Size + 1 - abs(offsetY);
|
||
|
|
if (height > 0)
|
||
|
|
{
|
||
|
|
// complete column on the right
|
||
|
|
updateGridPart(newX + _Size + 1 - width, newY - offsetY, _Size + 1 - width, std::max(-offsetY, 0), width, height, gr);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (newX < _XPos) // moved left ?
|
||
|
|
{
|
||
|
|
// the width to update
|
||
|
|
uint width = std::min((uint) (- offsetX), _Size + 1);
|
||
|
|
// the the grid moved top or bottom, exclude
|
||
|
|
sint height = _Size + 1 - abs(offsetY);
|
||
|
|
if (height > 0)
|
||
|
|
{
|
||
|
|
// complete column on the right
|
||
|
|
updateGridPart(newX, newY - offsetY, 0, std::max(-offsetY, 0), width, height, gr);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// update top or bottom part
|
||
|
|
if (newY > _YPos)
|
||
|
|
{
|
||
|
|
sint height = std::min((uint) offsetY, _Size + 1);
|
||
|
|
updateGridPart(newX, newY + _Size + 1 - height, 0, _Size + 1 - height, _Size + 1, height, gr);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
if (newY < _YPos)
|
||
|
|
{
|
||
|
|
sint height = std::min((uint) (- offsetY), _Size + 1);
|
||
|
|
updateGridPart(newX, newY, 0, 0, _Size + 1, height, gr);
|
||
|
|
}
|
||
|
|
|
||
|
|
#if defined(NL_CPU_INTEL) && defined(NL_DEBUG)
|
||
|
|
clock.stop();
|
||
|
|
// display number of millisecond needed for the update
|
||
|
|
double freq = (double) CSystemInfo::getProcessorFrequency();
|
||
|
|
double msPerTick = 1000 / (double) freq;
|
||
|
|
nldebug("Updated precipitation clip grid : time = %.2f ms", (float) (clock.getNumTicks() * msPerTick));
|
||
|
|
// display the height in the clip grid
|
||
|
|
printGridValues();
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// update pos
|
||
|
|
_XPos = newX;
|
||
|
|
_YPos = newY;
|
||
|
|
*/
|
||
|
|
}
|
||
|
|
|
||
|
|
//=====================================================================
|
||
|
|
void CPrecipitationClipGrid::printGridValues() const
|
||
|
|
{
|
||
|
|
for(uint k = 0; k <= _Size; ++k)
|
||
|
|
{
|
||
|
|
std::string outStr;
|
||
|
|
for(uint l = 0; l <= _Size; ++l)
|
||
|
|
{
|
||
|
|
TGrid::const_iterator gridIt = getGridIt(_Grid, l, k, _Size);
|
||
|
|
outStr += toString("%5d%c ", (uint) gridIt->MeanHeight, l == _Size ? ' ' : ',');
|
||
|
|
}
|
||
|
|
nlinfo(outStr.c_str());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//=====================================================================
|
||
|
|
void CPrecipitationClipGrid::moveGrid(sint offsetX, sint offsetY)
|
||
|
|
{
|
||
|
|
static TGrid otherGrid; // the grid is likely to be rather small so it's ok to keep it static
|
||
|
|
otherGrid.resize(_Grid.size());
|
||
|
|
// get start pos in the source
|
||
|
|
uint srcX, srcY;
|
||
|
|
sint width, height;
|
||
|
|
// compute position in source & size
|
||
|
|
if (offsetX > 0)
|
||
|
|
{
|
||
|
|
srcX = 0;
|
||
|
|
width = (_Size + 1) - offsetX;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
srcX = -offsetX;
|
||
|
|
width = (_Size + 1) - srcX;
|
||
|
|
}
|
||
|
|
if (offsetY > 0)
|
||
|
|
{
|
||
|
|
srcY = 0;
|
||
|
|
height = (_Size + 1) - offsetY;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
srcY = -offsetY;
|
||
|
|
height = (_Size + 1) - srcY;
|
||
|
|
}
|
||
|
|
if (width > 0 && height > 0)
|
||
|
|
{
|
||
|
|
TGrid::const_iterator srcIt = getGridIt(_Grid, srcX, srcY, _Size);
|
||
|
|
TGrid::iterator dstIt = getGridIt(otherGrid, srcX + offsetX, srcY + offsetY, _Size);
|
||
|
|
do
|
||
|
|
{
|
||
|
|
// copy one row of the grid
|
||
|
|
std::copy(srcIt, srcIt + width, dstIt);
|
||
|
|
// go to next row for source & destination
|
||
|
|
srcIt += (_Size + 1);
|
||
|
|
dstIt += (_Size + 1);
|
||
|
|
}
|
||
|
|
while (--height);
|
||
|
|
_Grid.swap(otherGrid); // replace previous grid
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//=====================================================================
|
||
|
|
const CPrecipitationClipGrid::CGridPoint *CPrecipitationClipGrid::get(sint x, sint y) const
|
||
|
|
{
|
||
|
|
// pos in the grid
|
||
|
|
sint gx = x - _XPos;
|
||
|
|
sint gy = y - _YPos;
|
||
|
|
if ((uint) gx > (_Size + 1) || (uint) gy > (_Size + 1)) return NULL;
|
||
|
|
return &(*getGridIt(_Grid, gx, gy, _Size));
|
||
|
|
}
|
||
|
|
|
||
|
|
//=====================================================================
|
||
|
|
void CPrecipitationClipGrid::clear()
|
||
|
|
{
|
||
|
|
_XPos = 0;
|
||
|
|
_YPos = 0;
|
||
|
|
_Size = 0;
|
||
|
|
_EltSizeX = 0;
|
||
|
|
_EltSizeY = 0;
|
||
|
|
_Grid.clear();
|
||
|
|
}
|
||
|
|
|
||
|
|
//=====================================================================
|
||
|
|
void CPrecipitationClipGrid::updateGridPart(sint worldX, sint worldY, uint gridX, uint gridY, uint width, uint height, NLPACS::UGlobalRetriever *gr)
|
||
|
|
{
|
||
|
|
nlassert(gridX <= _Size);
|
||
|
|
nlassert(gridY <= _Size);
|
||
|
|
nlassert(gridX + width >= gridX && gridX + width <= _Size + 1);
|
||
|
|
nlassert(gridY + height >= gridY && gridY + height <= _Size + 1);
|
||
|
|
NLMISC::CVector worldPos(worldX * _EltSizeX, worldY * _EltSizeY, 10000.f);
|
||
|
|
TGrid::iterator dest = getGridIt(_Grid, gridX, gridY, _Size);
|
||
|
|
// fill each row
|
||
|
|
for (uint y = 0; y < height; ++y)
|
||
|
|
{
|
||
|
|
TGrid::iterator currDest = dest;
|
||
|
|
NLMISC::CVector currWorldPos = worldPos;
|
||
|
|
// fill a row
|
||
|
|
for (uint x = 0; x < width; ++x)
|
||
|
|
{
|
||
|
|
if (!gr)
|
||
|
|
{
|
||
|
|
currDest->Clipped = true;
|
||
|
|
currDest->MeanHeight = 0.f;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// build a global position
|
||
|
|
NLPACS::UGlobalPosition gpos = gr->retrievePosition(currWorldPos, 20000.f);
|
||
|
|
if (gpos.InstanceId != -1)
|
||
|
|
{
|
||
|
|
// is it an interior ?
|
||
|
|
if (gr->isInterior(gpos))
|
||
|
|
{
|
||
|
|
currDest->Clipped = true;
|
||
|
|
currDest->MeanHeight = 0.f;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// get mean height at this point
|
||
|
|
currDest->Clipped = false;
|
||
|
|
currDest->MeanHeight = gr->getMeanHeight(gpos);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
currDest->MeanHeight = 0.f;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
++ currDest;
|
||
|
|
currWorldPos.x += _EltSizeX;
|
||
|
|
}
|
||
|
|
// move to next row
|
||
|
|
dest += (_Size + 1);
|
||
|
|
currWorldPos.y += _EltSizeY;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//=====================================================================
|
||
|
|
void CPrecipitationClipGrid::display(NL3D::UDriver &drv) const
|
||
|
|
{
|
||
|
|
// get render context
|
||
|
|
CMatrix modelMat = drv.getModelMatrix();
|
||
|
|
CMatrix viewMat = drv.getViewMatrix();
|
||
|
|
CFrustum f = drv.getFrustum();
|
||
|
|
|
||
|
|
drv.setMatrixMode2D(CFrustum(0, 800, 600, 0, 0, 1, false));
|
||
|
|
|
||
|
|
const uint stepX = 16;
|
||
|
|
const uint stepY = 16;
|
||
|
|
for (uint y = 0; y < _Size + 1; ++y)
|
||
|
|
{
|
||
|
|
for (uint x = 0; x < _Size + 1; ++x)
|
||
|
|
{
|
||
|
|
TGrid::const_iterator gridPoint = getGridIt(_Grid, x, y, _Size);
|
||
|
|
CRGBA col = gridPoint->Clipped ? CRGBA::Red : CRGBA::White;
|
||
|
|
drv.drawLine((float) (x * stepX - 1), (float) (y * stepY), (float) (x * stepX + 1), (float) (y * stepY), col);
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drv.drawLine((float) (x * stepX), (float) (y * stepY - 1), (float) (x * stepX), (float) (y * stepY + 1), col);
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}
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}
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// restore render context
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drv.setModelMatrix(modelMat);
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drv.setViewMatrix(viewMat);
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drv.setFrustum(f);
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}
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