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fix(wob): cap group/portal/doodad header counts on save

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WoB load enforces 4096 groups / 8192 portals / 65536 doodads. Save
previously wrote raw size() and iterated all entries — a build
exceeding any cap would be rejected wholesale on round-trip.

Cap each count at the load limit and use indexed loops so the
written body matches the header count even if the in-memory data
goes over.
This commit is contained in:
Kelsi 2026-05-06 09:10:14 -07:00
parent c5008750ce
commit 2cd69d677a
1 changed files with 13 additions and 6 deletions
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19
src/pipeline/wowee_building.cpp
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@ -210,9 +210,12 @@ bool WoweeBuildingLoader::save(const WoweeBuilding& bld, const std::string& base
if (!f) return false;
f.write(reinterpret_cast<const char*>(&WOB_MAGIC), 4);
uint32_t gc = static_cast<uint32_t>(bld.groups.size());
uint32_t pc = static_cast<uint32_t>(bld.portals.size());
uint32_t dc = static_cast<uint32_t>(bld.doodads.size());
// Cap header counts at the load-side limits so a pathological build
// can't write a file the loader rejects whole. Same caps the load
// bounds-check uses (4096 groups / 8192 portals / 65536 doodads).
uint32_t gc = static_cast<uint32_t>(std::min<size_t>(bld.groups.size(), 4096));
uint32_t pc = static_cast<uint32_t>(std::min<size_t>(bld.portals.size(), 8192));
uint32_t dc = static_cast<uint32_t>(std::min<size_t>(bld.doodads.size(), 65536));
f.write(reinterpret_cast<const char*>(&gc), 4);
f.write(reinterpret_cast<const char*>(&pc), 4);
f.write(reinterpret_cast<const char*>(&dc), 4);
@ -232,7 +235,9 @@ bool WoweeBuildingLoader::save(const WoweeBuilding& bld, const std::string& base
};
writeStr(bld.name);
for (const auto& grp : bld.groups) {
// Iterate using the capped counts so the body matches the header.
for (uint32_t gi = 0; gi < gc; gi++) {
const auto& grp = bld.groups[gi];
writeStr(grp.name);
uint32_t vc = static_cast<uint32_t>(grp.vertices.size());
@ -294,7 +299,8 @@ bool WoweeBuildingLoader::save(const WoweeBuilding& bld, const std::string& base
}
}
for (const auto& portal : bld.portals) {
for (uint32_t pi = 0; pi < pc; pi++) {
const auto& portal = bld.portals[pi];
f.write(reinterpret_cast<const char*>(&portal.groupA), 4);
f.write(reinterpret_cast<const char*>(&portal.groupB), 4);
uint32_t pvCount = static_cast<uint32_t>(portal.vertices.size());
@ -311,7 +317,8 @@ bool WoweeBuildingLoader::save(const WoweeBuilding& bld, const std::string& base
f.write(reinterpret_cast<const char*>(sanPortal.data()), pvCount * 12);
}
for (const auto& dp : bld.doodads) {
for (uint32_t di = 0; di < dc; di++) {
const auto& dp = bld.doodads[di];
writeStr(dp.modelPath);
glm::vec3 pos = dp.position, rot = dp.rotation;
for (int k = 0; k < 3; k++) {