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Store the min/max height in LandData

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This commit is contained in:
scrawl 2017-03-07 15:00:16 +01:00
parent 051c17a184
commit 0fc465da59
6 changed files with 21 additions and 20 deletions
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11
components/esm/loadland.cpp
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@ -203,16 +203,27 @@ namespace ESM
if (reader.isNextSub("VHGT")) {
VHGT vhgt;
if (condLoad(reader, flags, target->mDataLoaded, DATA_VHGT, &vhgt, sizeof(vhgt))) {
target->mMinHeight = FLT_MAX;
target->mMaxHeight = -FLT_MAX;
float rowOffset = vhgt.mHeightOffset;
for (int y = 0; y < LAND_SIZE; y++) {
rowOffset += vhgt.mHeightData[y * LAND_SIZE];
target->mHeights[y * LAND_SIZE] = rowOffset * HEIGHT_SCALE;
if (rowOffset * HEIGHT_SCALE > target->mMaxHeight)
target->mMaxHeight = rowOffset * HEIGHT_SCALE;
if (rowOffset * HEIGHT_SCALE < target->mMinHeight)
target->mMinHeight = rowOffset * HEIGHT_SCALE;
float colOffset = rowOffset;
for (int x = 1; x < LAND_SIZE; x++) {
colOffset += vhgt.mHeightData[y * LAND_SIZE + x];
target->mHeights[x + y * LAND_SIZE] = colOffset * HEIGHT_SCALE;
if (colOffset * HEIGHT_SCALE > target->mMaxHeight)
target->mMaxHeight = colOffset * HEIGHT_SCALE;
if (colOffset * HEIGHT_SCALE < target->mMinHeight)
target->mMinHeight = colOffset * HEIGHT_SCALE;
}
}
target->mUnk1 = vhgt.mUnk1;

2
components/esm/loadland.hpp
View file

@ -87,6 +87,8 @@ struct Land
float mHeightOffset;
// Height in world space for each vertex
float mHeights[LAND_NUM_VERTS];
float mMinHeight;
float mMaxHeight;
// 24-bit normals, these aren't always correct though. Edge and corner normals may be garbage.
VNML mNormals[LAND_NUM_VERTS * 3];