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96 lines
2.8 KiB
C++
96 lines
2.8 KiB
C++
#include "cellborder.hpp"
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#include <osg/Group>
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#include <osg/PositionAttitudeTransform>
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#include <osg/Geode>
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#include <osg/Geometry>
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#include <osg/PrimitiveSet>
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#include <components/esm/loadland.hpp>
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#include "mask.hpp"
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#include "../../model/world/cellcoordinates.hpp"
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const int CSVRender::CellBorder::CellSize = ESM::Land::REAL_SIZE;
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const int CSVRender::CellBorder::VertexCount = (ESM::Land::LAND_SIZE * 4) - 3;
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CSVRender::CellBorder::CellBorder(osg::Group* cellNode, const CSMWorld::CellCoordinates& coords)
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: mParentNode(cellNode)
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{
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mBaseNode = new osg::PositionAttitudeTransform();
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mBaseNode->setNodeMask(Mask_CellBorder);
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mBaseNode->setPosition(osg::Vec3f(coords.getX() * CellSize, coords.getY() * CellSize, 10));
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mParentNode->addChild(mBaseNode);
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}
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CSVRender::CellBorder::~CellBorder()
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{
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mParentNode->removeChild(mBaseNode);
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}
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void CSVRender::CellBorder::buildShape(const ESM::Land& esmLand)
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{
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const ESM::Land::LandData* landData = esmLand.getLandData(ESM::Land::DATA_VHGT);
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if (!landData)
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return;
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osg::ref_ptr<osg::Geometry> geometry = new osg::Geometry();
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// Vertices
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osg::ref_ptr<osg::Vec3Array> vertices = new osg::Vec3Array();
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int x = 0, y = 0;
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for (; x < ESM::Land::LAND_SIZE; ++x)
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vertices->push_back(osg::Vec3f(scaleToWorld(x), scaleToWorld(y), landData->mHeights[landIndex(x, y)]));
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x = ESM::Land::LAND_SIZE - 1;
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for (; y < ESM::Land::LAND_SIZE; ++y)
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vertices->push_back(osg::Vec3f(scaleToWorld(x), scaleToWorld(y), landData->mHeights[landIndex(x, y)]));
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y = ESM::Land::LAND_SIZE - 1;
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for (; x >= 0; --x)
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vertices->push_back(osg::Vec3f(scaleToWorld(x), scaleToWorld(y), landData->mHeights[landIndex(x, y)]));
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x = 0;
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for (; y >= 0; --y)
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vertices->push_back(osg::Vec3f(scaleToWorld(x), scaleToWorld(y), landData->mHeights[landIndex(x, y)]));
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geometry->setVertexArray(vertices);
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// Color
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osg::ref_ptr<osg::Vec4Array> colors = new osg::Vec4Array();
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colors->push_back(osg::Vec4f(0.f, 0.5f, 0.f, 1.f));
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geometry->setColorArray(colors, osg::Array::BIND_PER_PRIMITIVE_SET);
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// Primitive
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osg::ref_ptr<osg::DrawElementsUShort> primitives =
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new osg::DrawElementsUShort(osg::PrimitiveSet::LINE_STRIP, VertexCount+1);
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for (size_t i = 0; i < VertexCount; ++i)
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primitives->setElement(i, i);
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primitives->setElement(VertexCount, 0);
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geometry->addPrimitiveSet(primitives);
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geometry->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
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osg::ref_ptr<osg::Geode> geode = new osg::Geode();
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geode->addDrawable(geometry);
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mBaseNode->addChild(geode);
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}
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size_t CSVRender::CellBorder::landIndex(int x, int y)
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{
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return y * ESM::Land::LAND_SIZE + x;
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}
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float CSVRender::CellBorder::scaleToWorld(int value)
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{
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return (CellSize + 128) * (float)value / ESM::Land::LAND_SIZE;
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}
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