Merge branch 'master' into activation
Andrei Kortunov
5 years ago
committed by
GitHub
commit
649a14dfae
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#include "terrainselection.hpp"
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#include <algorithm>
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#include <osg/Group>
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#include <osg/Geometry>
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#include <osg/PositionAttitudeTransform>
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#include <components/esm/loadland.hpp>
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#include "../../model/world/cellcoordinates.hpp"
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#include "../../model/world/columnimp.hpp"
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#include "../../model/world/idtable.hpp"
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#include "cell.hpp"
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#include "worldspacewidget.hpp"
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CSVRender::TerrainSelection::TerrainSelection(osg::Group* parentNode, WorldspaceWidget *worldspaceWidget, TerrainSelectionType type):
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mParentNode(parentNode), mWorldspaceWidget (worldspaceWidget), mDraggedOperationFlag(false), mSelectionType(type)
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{
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mGeometry = new osg::Geometry();
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mSelectionNode = new osg::Group();
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mSelectionNode->addChild(mGeometry);
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activate();
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}
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CSVRender::TerrainSelection::~TerrainSelection()
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{
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deactivate();
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}
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std::vector<std::pair<int, int>> CSVRender::TerrainSelection::getTerrainSelection() const
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{
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return mSelection;
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}
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void CSVRender::TerrainSelection::onlySelect(const std::vector<std::pair<int, int>> &localPositions)
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{
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mSelection = localPositions;
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update();
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}
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void CSVRender::TerrainSelection::addSelect(const std::pair<int, int> &localPos)
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{
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if (std::find(mSelection.begin(), mSelection.end(), localPos) == mSelection.end())
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{
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mSelection.emplace_back(localPos);
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update();
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}
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}
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void CSVRender::TerrainSelection::toggleSelect(const std::vector<std::pair<int, int>> &localPositions, bool toggleInProgress)
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{
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if (toggleInProgress)
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{
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for(auto const& localPos: localPositions)
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{
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auto iterTemp = std::find(mTemporarySelection.begin(), mTemporarySelection.end(), localPos);
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mDraggedOperationFlag = true;
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if (iterTemp == mTemporarySelection.end())
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{
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auto iter = std::find(mSelection.begin(), mSelection.end(), localPos);
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if (iter != mSelection.end())
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{
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mSelection.erase(iter);
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}
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else
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{
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mSelection.emplace_back(localPos);
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}
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}
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mTemporarySelection.push_back(localPos);
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}
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}
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else if (mDraggedOperationFlag == false)
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{
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for(auto const& localPos: localPositions)
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{
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const auto iter = std::find(mSelection.begin(), mSelection.end(), localPos);
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if (iter != mSelection.end())
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{
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mSelection.erase(iter);
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}
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else
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{
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mSelection.emplace_back(localPos);
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}
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}
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}
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else
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{
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mDraggedOperationFlag = false;
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mTemporarySelection.clear();
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}
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update();
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}
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void CSVRender::TerrainSelection::activate()
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{
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if (!mParentNode->containsNode(mSelectionNode)) mParentNode->addChild(mSelectionNode);
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}
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void CSVRender::TerrainSelection::deactivate()
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{
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mParentNode->removeChild(mSelectionNode);
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}
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void CSVRender::TerrainSelection::update()
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{
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mSelectionNode->removeChild(mGeometry);
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mGeometry = new osg::Geometry();
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const osg::ref_ptr<osg::Vec3Array> vertices (new osg::Vec3Array);
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switch (mSelectionType)
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{
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case TerrainSelectionType::Texture : drawTextureSelection(vertices);
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break;
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case TerrainSelectionType::Shape : drawShapeSelection(vertices);
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break;
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}
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mGeometry->setVertexArray(vertices);
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osg::ref_ptr<osg::DrawArrays> drawArrays = new osg::DrawArrays(osg::PrimitiveSet::LINES);
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drawArrays->setCount(vertices->size());
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if (vertices->size() != 0) mGeometry->addPrimitiveSet(drawArrays);
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mSelectionNode->addChild(mGeometry);
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}
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void CSVRender::TerrainSelection::drawShapeSelection(const osg::ref_ptr<osg::Vec3Array> vertices)
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{
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if (!mSelection.empty())
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{
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for (std::pair<int, int> &localPos : mSelection)
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{
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int x (localPos.first);
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int y (localPos.second);
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float xWorldCoord(CSMWorld::CellCoordinates::vertexGlobalToWorldCoords(x));
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float yWorldCoord(CSMWorld::CellCoordinates::vertexGlobalToWorldCoords(y));
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osg::Vec3f pointXY(xWorldCoord, yWorldCoord, calculateLandHeight(x, y) + 2);
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vertices->push_back(pointXY);
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vertices->push_back(osg::Vec3f(xWorldCoord, CSMWorld::CellCoordinates::vertexGlobalToWorldCoords(y - 1), calculateLandHeight(x, y - 1) + 2));
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vertices->push_back(pointXY);
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vertices->push_back(osg::Vec3f(CSMWorld::CellCoordinates::vertexGlobalToWorldCoords(x - 1), yWorldCoord, calculateLandHeight(x - 1, y) + 2));
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const auto north = std::find(mSelection.begin(), mSelection.end(), std::make_pair(x, y + 1));
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if (north == mSelection.end())
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{
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vertices->push_back(pointXY);
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vertices->push_back(osg::Vec3f(xWorldCoord, CSMWorld::CellCoordinates::vertexGlobalToWorldCoords(y + 1), calculateLandHeight(x, y + 1) + 2));
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}
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const auto east = std::find(mSelection.begin(), mSelection.end(), std::make_pair(x + 1, y));
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if (east == mSelection.end())
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{
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vertices->push_back(pointXY);
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vertices->push_back(osg::Vec3f(CSMWorld::CellCoordinates::vertexGlobalToWorldCoords(x + 1), yWorldCoord, calculateLandHeight(x + 1, y) + 2));
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}
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}
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}
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}
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void CSVRender::TerrainSelection::drawTextureSelection(const osg::ref_ptr<osg::Vec3Array> vertices)
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{
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if (!mSelection.empty())
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{
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// Nudge selection by 1/4th of a texture size, similar how blendmaps are nudged
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const float nudgePercentage = 0.25f;
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const int nudgeOffset = (ESM::Land::REAL_SIZE / ESM::Land::LAND_TEXTURE_SIZE) * nudgePercentage;
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const int landHeightsNudge = (ESM::Land::REAL_SIZE / ESM::Land::LAND_SIZE) / (ESM::Land::LAND_SIZE - 1); // Does this work with all land size configurations?
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const int textureSizeToLandSizeModifier = (ESM::Land::LAND_SIZE - 1) / ESM::Land::LAND_TEXTURE_SIZE;
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for (std::pair<int, int> &localPos : mSelection)
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{
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int x (localPos.first);
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int y (localPos.second);
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// convert texture selection to global vertex coordinates at selection box corners
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int x1 = x * textureSizeToLandSizeModifier + landHeightsNudge;
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int x2 = x * textureSizeToLandSizeModifier + textureSizeToLandSizeModifier + landHeightsNudge;
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int y1 = y * textureSizeToLandSizeModifier - landHeightsNudge;
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int y2 = y * textureSizeToLandSizeModifier + textureSizeToLandSizeModifier - landHeightsNudge;
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// Draw edges (check all sides, draw lines between vertices, +1 height to keep lines above ground)
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// Check adjancent selections, draw lines only to edges of the selection
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const auto north = std::find(mSelection.begin(), mSelection.end(), std::make_pair(x, y + 1));
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if (north == mSelection.end())
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{
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for(int i = 1; i < (textureSizeToLandSizeModifier + 1); i++)
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{
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float drawPreviousX = CSMWorld::CellCoordinates::textureGlobalToWorldCoords(x) + (i - 1) * (ESM::Land::REAL_SIZE / (ESM::Land::LAND_SIZE - 1));
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float drawCurrentX = CSMWorld::CellCoordinates::textureGlobalToWorldCoords(x) + i * (ESM::Land::REAL_SIZE / (ESM::Land::LAND_SIZE - 1));
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vertices->push_back(osg::Vec3f(drawPreviousX + nudgeOffset, CSMWorld::CellCoordinates::textureGlobalToWorldCoords(y + 1) - nudgeOffset, calculateLandHeight(x1+(i-1), y2)+2));
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vertices->push_back(osg::Vec3f(drawCurrentX + nudgeOffset, CSMWorld::CellCoordinates::textureGlobalToWorldCoords(y + 1) - nudgeOffset, calculateLandHeight(x1+i, y2)+2));
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}
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}
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const auto south = std::find(mSelection.begin(), mSelection.end(), std::make_pair(x, y - 1));
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if (south == mSelection.end())
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{
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for(int i = 1; i < (textureSizeToLandSizeModifier + 1); i++)
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{
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float drawPreviousX = CSMWorld::CellCoordinates::textureGlobalToWorldCoords(x) + (i - 1) *(ESM::Land::REAL_SIZE / (ESM::Land::LAND_SIZE - 1));
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float drawCurrentX = CSMWorld::CellCoordinates::textureGlobalToWorldCoords(x) + i * (ESM::Land::REAL_SIZE / (ESM::Land::LAND_SIZE - 1));
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vertices->push_back(osg::Vec3f(drawPreviousX + nudgeOffset, CSMWorld::CellCoordinates::textureGlobalToWorldCoords(y) - nudgeOffset, calculateLandHeight(x1+(i-1), y1)+2));
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vertices->push_back(osg::Vec3f(drawCurrentX + nudgeOffset, CSMWorld::CellCoordinates::textureGlobalToWorldCoords(y) - nudgeOffset, calculateLandHeight(x1+i, y1)+2));
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}
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}
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const auto east = std::find(mSelection.begin(), mSelection.end(), std::make_pair(x + 1, y));
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if (east == mSelection.end())
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{
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for(int i = 1; i < (textureSizeToLandSizeModifier + 1); i++)
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{
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float drawPreviousY = CSMWorld::CellCoordinates::textureGlobalToWorldCoords(y) + (i - 1) * (ESM::Land::REAL_SIZE / (ESM::Land::LAND_SIZE - 1));
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float drawCurrentY = CSMWorld::CellCoordinates::textureGlobalToWorldCoords(y) + i * (ESM::Land::REAL_SIZE / (ESM::Land::LAND_SIZE - 1));
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vertices->push_back(osg::Vec3f(CSMWorld::CellCoordinates::textureGlobalToWorldCoords(x + 1) + nudgeOffset, drawPreviousY - nudgeOffset, calculateLandHeight(x2, y1+(i-1))+2));
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vertices->push_back(osg::Vec3f(CSMWorld::CellCoordinates::textureGlobalToWorldCoords(x + 1) + nudgeOffset, drawCurrentY - nudgeOffset, calculateLandHeight(x2, y1+i)+2));
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}
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}
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const auto west = std::find(mSelection.begin(), mSelection.end(), std::make_pair(x - 1, y));
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if (west == mSelection.end())
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{
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for(int i = 1; i < (textureSizeToLandSizeModifier + 1); i++)
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{
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float drawPreviousY = CSMWorld::CellCoordinates::textureGlobalToWorldCoords(y) + (i - 1) * (ESM::Land::REAL_SIZE / (ESM::Land::LAND_SIZE - 1));
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float drawCurrentY = CSMWorld::CellCoordinates::textureGlobalToWorldCoords(y) + i * (ESM::Land::REAL_SIZE / (ESM::Land::LAND_SIZE - 1));
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vertices->push_back(osg::Vec3f(CSMWorld::CellCoordinates::textureGlobalToWorldCoords(x) + nudgeOffset, drawPreviousY - nudgeOffset, calculateLandHeight(x1, y1+(i-1))+2));
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vertices->push_back(osg::Vec3f(CSMWorld::CellCoordinates::textureGlobalToWorldCoords(x) + nudgeOffset, drawCurrentY - nudgeOffset, calculateLandHeight(x1, y1+i)+2));
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}
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}
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}
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}
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}
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int CSVRender::TerrainSelection::calculateLandHeight(int x, int y) // global vertex coordinates
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{
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int cellX = std::floor((1.0f*x / (ESM::Land::LAND_SIZE - 1)));
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int cellY = std::floor((1.0f*y / (ESM::Land::LAND_SIZE - 1)));
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int localX = x - cellX * (ESM::Land::LAND_SIZE - 1);
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int localY = y - cellY * (ESM::Land::LAND_SIZE - 1);
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std::string cellId = CSMWorld::CellCoordinates::generateId(cellX, cellY);
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CSMDoc::Document& document = mWorldspaceWidget->getDocument();
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CSMWorld::IdTable& landTable = dynamic_cast<CSMWorld::IdTable&> (
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*document.getData().getTableModel (CSMWorld::UniversalId::Type_Land));
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int landshapeColumn = landTable.findColumnIndex(CSMWorld::Columns::ColumnId_LandHeightsIndex);
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const CSMWorld::LandHeightsColumn::DataType mPointer = landTable.data(landTable.getModelIndex(cellId, landshapeColumn)).value<CSMWorld::LandHeightsColumn::DataType>();
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return mPointer[localY*ESM::Land::LAND_SIZE + localX];
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}
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@ -0,0 +1,70 @@
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#ifndef CSV_RENDER_TERRAINSELECTION_H
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#define CSV_RENDER_TERRAINSELECTION_H
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#include <utility>
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#include <vector>
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#include <osg/Vec3d>
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#include <osg/ref_ptr>
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#include <osg/PositionAttitudeTransform>
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#include <components/esm/loadland.hpp>
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#include "../../model/world/cellcoordinates.hpp"
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namespace osg
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{
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class Group;
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}
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namespace CSVRender
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{
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struct WorldspaceHitResult;
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class WorldspaceWidget;
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enum class TerrainSelectionType
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{
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Texture,
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Shape
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};
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/// \brief Class handling the terrain selection data and rendering
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class TerrainSelection
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{
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public:
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TerrainSelection(osg::Group* parentNode, WorldspaceWidget *worldspaceWidget, TerrainSelectionType type);
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~TerrainSelection();
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void onlySelect(const std::vector<std::pair<int, int>> &localPositions);
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void addSelect(const std::pair<int, int> &localPos);
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void toggleSelect(const std::vector<std::pair<int, int>> &localPositions, bool toggleInProgress);
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void activate();
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void deactivate();
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std::vector<std::pair<int, int>> getTerrainSelection() const;
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protected:
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void update();
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void drawShapeSelection(const osg::ref_ptr<osg::Vec3Array> vertices);
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void drawTextureSelection(const osg::ref_ptr<osg::Vec3Array> vertices);
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int calculateLandHeight(int x, int y);
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private:
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osg::Group* mParentNode;
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WorldspaceWidget *mWorldspaceWidget;
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osg::ref_ptr<osg::PositionAttitudeTransform> mBaseNode;
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osg::ref_ptr<osg::Geometry> mGeometry;
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osg::ref_ptr<osg::Group> mSelectionNode;
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std::vector<std::pair<int, int>> mSelection; // Global terrain selection coordinate in either vertex or texture units
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std::vector<std::pair<int, int>> mTemporarySelection; // Used during toggle to compare the most recent drag operation
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bool mDraggedOperationFlag; //true during drag operation, false when click-operation
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TerrainSelectionType mSelectionType;
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};
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}
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#endif
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