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72 lines
2.0 KiB
C++
72 lines
2.0 KiB
C++
#include "loadpgrd.hpp"
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namespace ESM
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{
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void Pathgrid::load(ESMReader &esm)
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{
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esm.getHNT(data, "DATA", 12);
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cell = esm.getHNString("NAME");
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// keep track of total connections so we can reserve edge vector size
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int edgeCount = 0;
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if (esm.isNextSub("PGRP"))
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{
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esm.getSubHeader();
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int size = esm.getSubSize();
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// Check that the sizes match up. Size = 16 * s2 (path points)
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if (size != static_cast<int> (sizeof(Point) * data.s2))
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esm.fail("Path point subrecord size mismatch");
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else
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{
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int pointCount = data.s2;
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points.reserve(pointCount);
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for (int i = 0; i < pointCount; ++i)
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{
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Point p;
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esm.getExact(&p, sizeof(Point));
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points.push_back(p);
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edgeCount += p.connectionNum;
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}
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}
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}
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if (esm.isNextSub("PGRC"))
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{
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esm.getSubHeader();
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int size = esm.getSubSize();
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if (size % sizeof(int) != 0)
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esm.fail("PGRC size not a multiple of 4");
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else
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{
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int rawConnNum = size / sizeof(int);
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std::vector<int> rawConnections;
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rawConnections.reserve(rawConnNum);
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for (int i = 0; i < rawConnNum; ++i)
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{
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int currentValue;
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esm.getT(currentValue);
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rawConnections.push_back(currentValue);
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}
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std::vector<int>::const_iterator rawIt = rawConnections.begin();
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int pointIndex = 0;
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edges.reserve(edgeCount);
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for(PointList::const_iterator it = points.begin(); it != points.end(); it++, pointIndex++)
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{
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unsigned char connectionNum = (*it).connectionNum;
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for (int i = 0; i < connectionNum; ++i) {
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Edge edge;
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edge.v0 = pointIndex;
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edge.v1 = *rawIt;
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rawIt++;
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edges.push_back(edge);
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}
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}
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}
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}
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}
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}
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