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feat(zone): read version 1-2 paths

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Paths before version 3 are laid out differently (LevelPath::FromBuffer,
1.10.64: pathVersion < 3):
- the type is a u8-length wide string, "platform" for a moving platform
  and anything else ("npc") for a movement path, instead of a u32;
- the flags and behavior u32s follow as in later versions;
- every waypoint, whatever the path's type, has a rotation, lock player
  byte, speed and wait time and then its name/value pairs.

The reader treated the type name's first bytes as the type and misread
everything after it. The LUP group zones of the 0.179.12
client (lup_group_1b, _2a, _6a) now read with all their paths; one of
them read before with a garbage type on a waypoint-less path. Every
other zone reads the same as before (no live zone has a path older than
version 3).

Check in game: nothing to check on live worlds.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Aaron Kimbrell
2026-09-29 04:31:47 -05:00
parent 20f784e262
commit 0d2fcc7dff
2 changed files with 59 additions and 1 deletions
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40
tests/dCommonTests/ZoneFileTests.cpp
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@@ -164,6 +164,46 @@ TEST(ZoneFileTests, PrePreAlphaHasNoZoneName) {
EXPECT_TRUE(zone.zoneDesc.empty());
}
// Before path version 3 the type is a name and every waypoint has a platform's data and name/value pairs
TEST(ZoneFileTests, ReadsLegacyPaths) {
ZoneBytes w;
w.Put<uint32_t>(35).Put<uint32_t>(137).Put<uint8_t>(1); // version, world, scene count
w.Text("lup.lvl").Put<uint32_t>(0).Put<uint32_t>(0).Text("Global Scene").Put<uint8_t>(0).Put<uint8_t>(0).Put<uint8_t>(0);
w.Put<uint8_t>(0).Text("lup.raw").Text("Name").Text("Description");
w.Put<uint32_t>(0); // no transitions
w.Put<uint32_t>(0).Put<uint32_t>(1).Put<uint32_t>(2);
w.Put<uint32_t>(2).Wide("LavaPath").Wide("npc").Put<uint32_t>(1).Put<uint32_t>(0);
w.Put<uint32_t>(1).Point(1, 2, 3).Put(1.0f).Put(0.0f).Put(0.0f).Put(0.0f).Put<uint8_t>(0).Put(3.0f).Put(0.5f);
w.Put<uint32_t>(1).Wide("delay").Wide("2");
w.Put<uint32_t>(2).Wide("Mower").Wide("platform").Put<uint32_t>(0).Put<uint32_t>(2);
w.Put<uint32_t>(1).Point(4, 5, 6).Put(0.0f).Put(1.0f).Put(0.0f).Put(0.0f).Put<uint8_t>(1).Put(7.0f).Put(1.5f).Put<uint32_t>(0);
std::istringstream stream(w.data);
ZoneFile zone;
zone.Read(stream);
EXPECT_FALSE(stream.fail());
EXPECT_EQ(stream.peek(), std::char_traits<char>::eof());
ASSERT_EQ(zone.paths.size(), 2u);
const auto& npc = zone.paths[0];
EXPECT_EQ(npc.pathType, PathType::Movement);
EXPECT_EQ(npc.flags, 1u);
ASSERT_EQ(npc.pathWaypoints.size(), 1u);
EXPECT_EQ(npc.pathWaypoints[0].position, NiPoint3(1, 2, 3));
EXPECT_EQ(npc.pathWaypoints[0].speed, 3.0f);
ASSERT_EQ(npc.pathWaypoints[0].commands.size(), 1u);
EXPECT_EQ(npc.pathWaypoints[0].commands[0].command, eWaypointCommandType::DELAY);
const auto& platform = zone.paths[1];
EXPECT_EQ(platform.pathType, PathType::MovingPlatform);
EXPECT_EQ(platform.pathBehavior, PathBehavior::Once);
ASSERT_EQ(platform.pathWaypoints.size(), 1u);
EXPECT_EQ(platform.pathWaypoints[0].rotation.x, 1.0f);
EXPECT_EQ(platform.pathWaypoints[0].movingPlatform.lockPlayer, 1);
EXPECT_EQ(platform.pathWaypoints[0].speed, 7.0f);
EXPECT_EQ(platform.pathWaypoints[0].movingPlatform.wait, 1.5f);
}
TEST(ZoneFileTests, ShortFilesThrowOrFail) {
const auto zone = SampleZone();
for (const size_t length : { size_t{ 3 }, size_t{ 40 }, zone.size() / 2, zone.size() - 1 }) {