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OpenMW/components/esm/esmterrain.cpp
florent.teppe ad8cfde4e0 ESM::LandData no longer a virtual interface
instead it is constructed from ESM::Land or ESM4::Land
2023-05-29 12:10:42 +02:00

68 lines
2.3 KiB
C++

#include <components/misc/constants.hpp>
#include "esmterrain.hpp"
ESM::LandData::LandData(const ESM::Land& land, int loadFlags)
: mLoadFlags(loadFlags)
, mSize(Constants::CellSizeInUnits)
, mLandSize(ESM::Land::LAND_SIZE)
{
ESM::Land::LandData data;
land.loadData(loadFlags, &data);
mLoadFlags = data.mDataLoaded;
std::span<const float> heights(data.mHeights);
mHeights = std::vector(heights.begin(), heights.end());
std::span<const VNML> normals(data.mNormals);
mNormals = std::vector(normals.begin(), normals.end());
std::span<const unsigned char> colors(data.mColours);
mColors = std::vector(colors.begin(), colors.end());
std::span<const uint16_t> textures(data.mTextures);
mTextures = std::vector(textures.begin(), textures.end());
mMinHeight = data.mMinHeight;
mMaxHeight = data.mMaxHeight;
}
ESM::LandData::LandData(const ESM4::Land& land, int loadFlags)
: mLoadFlags(loadFlags)
, mSize(Constants::ESM4CellSizeInUnits)
, mLandSize(ESM4::Land::VERTS_PER_SIDE)
{
mMinHeight = std::numeric_limits<float>::max();
mMaxHeight = std::numeric_limits<float>::lowest();
mHeights.resize(ESM4::Land::LAND_NUM_VERTS);
mTextures.resize(ESM::Land::LAND_NUM_TEXTURES);
std::fill(mTextures.begin(), mTextures.end(), 0);
float row_offset = land.mHeightMap.heightOffset;
for (int y = 0; y < mLandSize; y++)
{
row_offset += land.mHeightMap.gradientData[y * mLandSize];
const float heightY = row_offset * ESM4::Land::HEIGHT_SCALE;
mHeights[y * mLandSize] = heightY;
mMinHeight = std::min(mMinHeight, heightY);
mMaxHeight = std::max(mMaxHeight, heightY);
float colOffset = row_offset;
for (int x = 1; x < mLandSize; x++)
{
colOffset += land.mHeightMap.gradientData[y * mLandSize + x];
const float heightX = colOffset * ESM4::Land::HEIGHT_SCALE;
mMinHeight = std::min(mMinHeight, heightX);
mMaxHeight = std::max(mMaxHeight, heightX);
mHeights[x + y * mLandSize] = heightX;
}
}
std::span<const VNML> normals(land.mVertNorm);
mNormals = std::vector(normals.begin(), normals.end());
std::span<const unsigned char> colors(land.mVertColr);
mColors = std::vector(colors.begin(), colors.end());
}