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Drawing duplicate lines is faster than iterating through big containers

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This commit is contained in:
unelsson 2021-10-04 01:27:57 +03:00
parent 55456a19fc
commit 28278e9a82
1 changed files with 4 additions and 14 deletions
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18
apps/opencs/view/render/terrainselection.cpp
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@ -116,20 +116,10 @@ void CSVRender::TerrainSelection::drawShapeSelection(const osg::ref_ptr<osg::Vec
vertices->push_back(osg::Vec3f(xWorldCoord, CSMWorld::CellCoordinates::vertexGlobalToWorldCoords(y - 1), calculateLandHeight(x, y - 1)));
vertices->push_back(pointXY);
vertices->push_back(osg::Vec3f(CSMWorld::CellCoordinates::vertexGlobalToWorldCoords(x - 1), yWorldCoord, calculateLandHeight(x - 1, y)));
const auto north = std::find(mSelection.begin(), mSelection.end(), std::make_pair(x, y + 1));
if (north == mSelection.end())
{
vertices->push_back(pointXY);
vertices->push_back(osg::Vec3f(xWorldCoord, CSMWorld::CellCoordinates::vertexGlobalToWorldCoords(y + 1), calculateLandHeight(x, y + 1)));
}
const auto east = std::find(mSelection.begin(), mSelection.end(), std::make_pair(x + 1, y));
if (east == mSelection.end())
{
vertices->push_back(pointXY);
vertices->push_back(osg::Vec3f(CSMWorld::CellCoordinates::vertexGlobalToWorldCoords(x + 1), yWorldCoord, calculateLandHeight(x + 1, y)));
}
vertices->push_back(pointXY);
vertices->push_back(osg::Vec3f(xWorldCoord, CSMWorld::CellCoordinates::vertexGlobalToWorldCoords(y + 1), calculateLandHeight(x, y + 1)));
vertices->push_back(pointXY);
vertices->push_back(osg::Vec3f(CSMWorld::CellCoordinates::vertexGlobalToWorldCoords(x + 1), yWorldCoord, calculateLandHeight(x + 1, y)));
}
}
}