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DarkflameServer/tests/dGameTests/dComponentsTests/MovingPlatformComponentTests.cpp
Aaron Kimbrell 7f62425456 fix(njhub): a built counterweight goes down by itself, and the scripts hear it arrive 
Live (the Frakjaw battle captures, LOT 16141): when its quick build completes the simple mover is serialized waiting at waypoint 0 (9) and about 0.1 s later travelling (2); it stops at its end without a serialization. That is the client's LWOPlatform, active once the quick build is complete (SendMessage 0x00bdc930), waiting the shortest wait and setting off (RunPlatform 0x00c86e10). L_CAVE_PRISON_CAGE and L_MONASTERY_BOSS_INSTANCE_SERVER never send it: they ask to be told of its PlatformAtLastWaypoint, and act then.

So the simple mover sets off when it is built, the cave prison's button goes down when the counterweight arrives instead of when it is built, and Frakjaw is hit when it arrives (0.1 s and the row's 1 s after the build) instead of on a 0.5 s timer with a counterweight that never moved.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-10 14:14:45 -06:00

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// Moving platform subcomponents: which one the client picks from the level config, the simple mover as live
// constructed it (a NJ monastery cave counterweight, LOT 16141), and a simple mover's trip timing.
#include "GameDependencies.h"
#include <gtest/gtest.h>
#include <bit>
#include "BitStream.h"
#include "CDClientDatabase.h"
#include "Entity.h"
#include "LDFFormat.h"
#include "MovementMessages.h"
#include "MovingPlatformComponent.h"
#include "SimplePhysicsComponent.h"
#include "Zone.h"
#include "dZoneManager.h"
namespace {
float Float(const uint32_t bits) { return std::bit_cast<float>(bits); }
std::string Bits(RakNet::BitStream& stream) {
std::string bits;
stream.ResetReadPointer();
bool bit{};
while (stream.Read(bit)) bits += bit ? '1' : '0';
return bits;
}
std::string HexBits(const std::string& hex, const uint32_t count) {
std::string bits;
for (size_t i = 0; i + 1 < hex.size(); i += 2) {
const auto byte = std::stoi(hex.substr(i, 2), nullptr, 16);
for (int b = 7; b >= 0; b--) bits += ((byte >> b) & 1) ? '1' : '0';
}
return bits.substr(0, count);
}
}
class MovingPlatformComponentTest : public GameDependenciesTest {
protected:
void SetUp() override {
SetUpDependencies();
CDClientDatabase::Connect(":memory:");
CDClientDatabase::ExecuteDML("CREATE TABLE MovingPlatforms (id INTEGER, platformIsSimpleMover INTEGER, platformMoveX REAL, platformMoveY REAL, platformMoveZ REAL, platformMoveTime REAL, platformStartAtEnd INTEGER, description TEXT);");
CDClientDatabase::ExecuteDML("INSERT INTO MovingPlatforms VALUES (41, 1, 0.0, -2.5, 0.0, 1.0, 0, 'Counterweights in the caves');");
}
void TearDown() override { TearDownDependencies(); }
};
// LWOMovingPlatformComponent::LoadConfigData: no setting means a mover without a registry component, a simple mover
// with one; the settings choose otherwise
TEST_F(MovingPlatformComponentTest, SubcomponentTypeFromLevelConfig) {
Entity pathOnly(288300744895900100, info);
EXPECT_EQ(ChooseMoverSubComponentType(-1, pathOnly), eMoverSubComponentType::mover);
EXPECT_EQ(ChooseMoverSubComponentType(0, pathOnly), eMoverSubComponentType::mover);
EXPECT_EQ(ChooseMoverSubComponentType(41, pathOnly), eMoverSubComponentType::simpleMover);
info.settings.Insert<bool>(u"platformIsMover", true);
Entity mover(288300744895900101, info);
EXPECT_EQ(ChooseMoverSubComponentType(41, mover), eMoverSubComponentType::mover);
info.settings.values.clear();
info.settings.Insert<bool>(u"platformIsSimpleMover", true);
Entity simple(288300744895900102, info);
EXPECT_EQ(ChooseMoverSubComponentType(-1, simple), eMoverSubComponentType::simpleMover);
info.settings.values.clear();
info.settings.Insert<bool>(u"platformIsRotater", true);
Entity rotater(288300744895900105, info);
EXPECT_EQ(ChooseMoverSubComponentType(0, rotater), eMoverSubComponentType::rotater);
// Set, but all false: the client makes no subcomponent
info.settings.values.clear();
info.settings.Insert<bool>(u"platformIsMover", false);
Entity none(288300744895900106, info);
EXPECT_EQ(ChooseMoverSubComponentType(41, none), eMoverSubComponentType::none);
info.settings.values.clear();
}
// LWOMovingPlatformComponent::SetupPlatform: one subcomponent per setting that is true, mover, simple mover, rotater
TEST_F(MovingPlatformComponentTest, OneSubcomponentPerSetting) {
info.settings.Insert<bool>(u"platformIsRotater", true);
info.settings.Insert<bool>(u"platformIsMover", true);
Entity both(288300744895900107, info);
const std::vector expected{ eMoverSubComponentType::mover, eMoverSubComponentType::rotater };
EXPECT_EQ(ChooseSubComponentTypes(-1, both), expected);
EXPECT_EQ(ChooseMoverSubComponentType(-1, both), eMoverSubComponentType::mover);
info.settings.values.clear();
}
// Live: 1 (subcomponents), 1 (dirty), 0 (no path), 1, type 5, the starting point (the object's position and
// rotation, w first), state 9 (waiting at its desired waypoint), waypoint 0, not reversing, then the ending 0 bit
TEST_F(MovingPlatformComponentTest, SimpleMoverConstructionMatchesLive) {
info.lot = 16141;
info.pos = NiPoint3(Float(0xc2e02255), Float(0x436d1992), Float(0xc32347e8));
info.rot = NiQuaternion(Float(0x3f6fa199), 0.0f, Float(0x3eb42497), 0.0f);
Entity counterweight(288300744895900103, info);
auto* const platform = counterweight.AddComponent<MovingPlatformComponent>(41, "");
ASSERT_EQ(platform->GetMoverSubComponentType(), eMoverSubComponentType::simpleMover);
EXPECT_EQ(platform->GetSimpleMoverSubComponent()->mMove, NiPoint3(0.0f, -2.5f, 0.0f));
EXPECT_FLOAT_EQ(platform->GetSimpleMoverSubComponent()->mMoveTime, 1.0f);
RakNet::BitStream stream;
platform->Serialize(stream, true);
EXPECT_EQ(Bits(stream), HexBits("d05000000d548b830a4865b50fa11c8f0e6685bcfc000000025c92d0f800000002120000000000000000", 329));
// Nothing changed: a serialization says so in two bits
RakNet::BitStream idle;
platform->Serialize(idle, false);
EXPECT_EQ(Bits(idle), "00");
}
// Sent to its end it serializes travelling from waypoint 0, and after platformMoveTime it has arrived: stopped at its
// desired and final waypoint 1, moved by platformMove
TEST_F(MovingPlatformComponentTest, SimpleMoverTripTiming) {
info.lot = 16141;
info.pos = NiPoint3(10.0f, 20.0f, 30.0f);
info.rot = QuatUtils::IDENTITY;
Entity counterweight(288300744895900104, info);
counterweight.AddComponent<SimplePhysicsComponent>(-1);
auto* const platform = counterweight.AddComponent<MovingPlatformComponent>(41, "");
auto* const mover = platform->GetSimpleMoverSubComponent();
platform->GotoWaypoint(1);
counterweight.Update(0.0f); // timers added now start on the next update
EXPECT_EQ(mover->mState, ePlatformStateFlag::Travelling);
EXPECT_EQ(mover->mCurrentWaypointIndex, 0);
EXPECT_FALSE(mover->mInReverse);
RakNet::BitStream sent;
platform->Serialize(sent, false);
// 1, not dirty, 1, type 5, no starting point, the state: travelling from 0 forwards, then the ending 0
EXPECT_EQ(Bits(sent), "101" "00000101000000000000000000000000" "0" "1" "00000010000000000000000000000000" "00000000000000000000000000000000" "0" "0");
counterweight.Update(0.5f);
EXPECT_EQ(mover->mState, ePlatformStateFlag::Travelling);
counterweight.Update(0.6f);
EXPECT_EQ(mover->mState, ePlatformStateFlag::Stopped | ePlatformStateFlag::ReachedDesiredWaypoint | ePlatformStateFlag::ReachedFinalDestination);
EXPECT_EQ(mover->mCurrentWaypointIndex, 1);
EXPECT_EQ(counterweight.GetPosition(), NiPoint3(10.0f, 17.5f, 30.0f));
// And back
platform->GotoWaypoint(0);
counterweight.Update(0.0f);
EXPECT_EQ(mover->mCurrentWaypointIndex, 1);
EXPECT_TRUE(mover->mInReverse);
counterweight.Update(1.1f);
EXPECT_EQ(mover->mCurrentWaypointIndex, 0);
EXPECT_EQ(counterweight.GetPosition(), NiPoint3(10.0f, 20.0f, 30.0f));
}
// A rotater's subcomponent is type 6 with a mover's data (LWOPlatform::Deserialize reads both)
TEST_F(MovingPlatformComponentTest, RotaterIsWrittenAsTypeSix) {
info.settings.Insert<bool>(u"platformIsRotater", true);
Entity rotater(288300744895900107, info);
info.settings.values.clear();
auto* const platform = rotater.AddComponent<MovingPlatformComponent>(-1, "");
ASSERT_EQ(platform->GetMoverSubComponentType(), eMoverSubComponentType::rotater);
ASSERT_NE(platform->GetMoverSubComponent(), nullptr);
platform->SetSerialized(true);
RakNet::BitStream stream;
platform->Serialize(stream, true);
const auto bits = Bits(stream);
// 1 (subcomponents), 1 (path written with the construction), 0 (no path), 1 (one follows), type 6
EXPECT_EQ(bits.substr(0, 4 + 32), "1101" "00000110000000000000000000000000");
EXPECT_EQ(bits.back(), '0');
}
// A mover runs on the server as live ran it: it waits at its first waypoint (9: waiting at a waypoint, as the GF
// shooting gallery targets were constructed), travels after the waypoint's wait (2), waits at the other end (25, turned
// round on a bounce path); sent to a waypoint to stop it waits with the desired waypoint, leaves and stops there (28)
TEST_F(MovingPlatformComponentTest, MoverRunsLikeLive) {
Path path;
path.pathType = PathType::MovingPlatform;
path.pathName = "TestMoverPath";
path.pathBehavior = PathBehavior::Bounce;
PathWaypoint first;
first.position = NiPoint3(0.0f, 0.0f, 0.0f);
first.speed = 5.0f;
first.movingPlatform.wait = 2.0f;
PathWaypoint second = first;
second.position = NiPoint3(10.0f, 0.0f, 0.0f);
second.movingPlatform.wait = 1.0f;
path.pathWaypoints = { first, second };
const_cast<Zone*>(Game::zoneManager->GetZone())->AddPath(path);
Entity entity(288300744895900108, info);
auto* const platform = entity.AddComponent<MovingPlatformComponent>(-1, "TestMoverPath");
ASSERT_TRUE(platform->IsMover());
auto* const mover = platform->GetMoverSubComponent();
EXPECT_EQ(mover->mState, 9u);
EXPECT_EQ(mover->mCurrentWaypointIndex, 0u);
EXPECT_EQ(mover->mNextWaypointIndex, 1u);
platform->Run(1.9f);
EXPECT_EQ(mover->mState, 9u);
EXPECT_FLOAT_EQ(mover->mIdleTimeElapsed, 1.9f);
platform->Run(0.2f);
EXPECT_EQ(mover->mState, 2u);
// 5 units a second over 10
platform->Run(1.0f);
EXPECT_NEAR(mover->mPercentBetweenPoints, 0.5f, 0.001f);
EXPECT_NEAR(mover->mPosition.x, 5.0f, 0.01f);
GameMessages::PlatformResync resync;
platform->FillResync(resync);
EXPECT_EQ(static_cast<uint32_t>(resync.eState), 2u);
EXPECT_EQ(resync.iIndex, 0);
EXPECT_EQ(resync.iNextIndex, 1);
EXPECT_NEAR(resync.fPercentBetweenPoints, 0.5f, 0.001f);
platform->Run(1.1f);
EXPECT_EQ(mover->mState, 25u);
EXPECT_EQ(mover->mCurrentWaypointIndex, 1u);
EXPECT_EQ(mover->mNextWaypointIndex, 0u);
EXPECT_TRUE(mover->mInReverse);
EXPECT_EQ(mover->mPercentBetweenPoints, 0.0f);
// Sent back to the start to stop there: it waits out the waypoint's wait, leaves and stays
platform->GotoWaypoint(0, true);
EXPECT_EQ(mover->mState, 25u);
EXPECT_EQ(mover->mDesiredWaypointIndex, 0);
EXPECT_TRUE(mover->mShouldStopAtDesiredWaypoint);
platform->Run(1.1f);
EXPECT_EQ(mover->mState, 2u);
EXPECT_EQ(mover->mDesiredWaypointIndex, 0);
platform->Run(2.5f);
EXPECT_EQ(mover->mState, 28u);
EXPECT_EQ(mover->mCurrentWaypointIndex, 0u);
EXPECT_EQ(mover->mDesiredWaypointIndex, -1);
platform->Run(10.0f);
EXPECT_EQ(mover->mState, 28u);
// Started at a waypoint it first waits there (issue 964), then stopped mid way (4, the bit the client stops on) and
// started again
platform->StartPathing();
EXPECT_EQ(mover->mState, 25u);
platform->Run(2.1f);
EXPECT_EQ(mover->mState, 2u);
platform->Run(1.0f);
platform->StopPathing();
EXPECT_EQ(mover->mState, 4u);
const auto percent = mover->mPercentBetweenPoints;
platform->Run(1.0f);
EXPECT_EQ(mover->mPercentBetweenPoints, percent);
platform->StartPathing();
EXPECT_EQ(mover->mState, 2u);
}
// The NJ falling tiles in the live captures (LOT 14335, a two waypoint path run once, not started on load): 12 until
// stepped on, sent to waypoint 1 it waits (9) and leaves (2); there it has stopped and turned round (28), and sent back
// it waits (25, reversed, towards 0) and leaves (2), to stop at the start as live constructed used tiles (28, forwards)
TEST_F(MovingPlatformComponentTest, MoverOnceLikeLiveFallingTile) {
Path path;
path.pathType = PathType::MovingPlatform;
path.pathName = "TestDropPath";
path.pathBehavior = PathBehavior::Once;
PathWaypoint first;
first.position = NiPoint3(0.0f, 10.0f, 0.0f);
first.speed = 5.0f;
PathWaypoint second = first;
second.position = NiPoint3(0.0f, 0.0f, 0.0f);
path.pathWaypoints = { first, second };
const_cast<Zone*>(Game::zoneManager->GetZone())->AddPath(path);
info.settings.Insert<bool>(u"startPathingOnLoad", false);
Entity entity(288300744895900109, info);
info.settings.values.clear();
auto* const platform = entity.AddComponent<MovingPlatformComponent>(-1, "TestDropPath");
auto* const mover = platform->GetMoverSubComponent();
EXPECT_EQ(mover->mState, 12u);
platform->Run(5.0f);
EXPECT_EQ(mover->mState, 12u);
platform->GotoWaypoint(1);
EXPECT_EQ(mover->mState, 9u);
EXPECT_EQ(mover->mDesiredWaypointIndex, 1);
EXPECT_TRUE(mover->mShouldStopAtDesiredWaypoint);
platform->Run(0.11f);
EXPECT_EQ(mover->mState, 2u);
platform->Run(1.0f);
EXPECT_EQ(mover->mState, 2u);
platform->Run(1.1f);
EXPECT_EQ(mover->mState, 28u);
EXPECT_EQ(mover->mCurrentWaypointIndex, 1u);
EXPECT_EQ(mover->mNextWaypointIndex, 0u);
EXPECT_TRUE(mover->mInReverse);
EXPECT_EQ(mover->mDesiredWaypointIndex, -1);
platform->GotoWaypoint(0);
EXPECT_EQ(mover->mState, 25u);
EXPECT_EQ(mover->mDesiredWaypointIndex, 0);
platform->Run(0.11f);
EXPECT_EQ(mover->mState, 2u);
platform->Run(2.1f);
EXPECT_EQ(mover->mState, 28u);
EXPECT_EQ(mover->mCurrentWaypointIndex, 0u);
EXPECT_EQ(mover->mNextWaypointIndex, 1u);
EXPECT_FALSE(mover->mInReverse);
}
// The object goes with its mover on the server (LWOPlatform moves it ignoring the dirty flags), turned between the
// waypoints' rotations, and its physics are not serialized for it: live sent a moving target's mover data only
TEST_F(MovingPlatformComponentTest, MoverCarriesItsObject) {
Path path;
path.pathType = PathType::MovingPlatform;
path.pathName = "TestCarryPath";
path.pathBehavior = PathBehavior::Once;
PathWaypoint first;
first.position = NiPoint3(0.0f, 0.0f, 0.0f);
first.speed = 5.0f;
PathWaypoint second = first;
second.position = NiPoint3(10.0f, 0.0f, 0.0f);
second.rotation = NiQuaternion(0.0f, 0.0f, 1.0f, 0.0f);
path.pathWaypoints = { first, second };
const_cast<Zone*>(Game::zoneManager->GetZone())->AddPath(path);
info.pos = NiPoint3(0.0f, 0.0f, 0.0f);
Entity entity(288300744895900110, info);
auto* const simplePhysics = entity.AddComponent<SimplePhysicsComponent>(-1);
auto* const platform = entity.AddComponent<MovingPlatformComponent>(-1, "TestCarryPath");
RakNet::BitStream before;
simplePhysics->Serialize(before, false);
platform->Run(0.11f);
platform->Run(1.0f);
EXPECT_NEAR(entity.GetPosition().x, 5.0f, 0.01f);
EXPECT_NEAR(std::abs(entity.GetRotation().y), 0.7071f, 0.001f);
RakNet::BitStream moved;
simplePhysics->Serialize(moved, false);
// No position and rotation (seven floats) in it
EXPECT_LT(moved.GetNumberOfBitsUsed(), 7u * 32u);
platform->Run(1.1f);
EXPECT_EQ(entity.GetPosition(), NiPoint3(10.0f, 0.0f, 0.0f));
EXPECT_NEAR(std::abs(entity.GetRotation().y), 1.0f, 0.001f);
}
// SetCurrentPath (live's shooting gallery script puts its moving platform targets on their paths with it): the mover
// starts over at the path's waypoint, waiting there as live constructed the targets (9), and the path is written once
TEST_F(MovingPlatformComponentTest, SetCurrentPathPutsTheMoverOnThePath) {
Path path;
path.pathType = PathType::MovingPlatform;
path.pathName = "TestTargetPath";
path.pathBehavior = PathBehavior::Once;
PathWaypoint first;
first.position = NiPoint3(1.0f, 2.0f, 3.0f);
first.speed = 10.0f;
PathWaypoint second = first;
second.position = NiPoint3(1.0f, 2.0f, 23.0f);
PathWaypoint third = first;
third.position = NiPoint3(1.0f, 2.0f, 43.0f);
path.pathWaypoints = { first, second, third };
const_cast<Zone*>(Game::zoneManager->GetZone())->AddPath(path);
Entity entity(288300744895900111, info);
entity.AddComponent<SimplePhysicsComponent>(-1);
auto* const platform = entity.AddComponent<MovingPlatformComponent>(0, "");
ASSERT_EQ(platform->GetMoverSubComponentType(), eMoverSubComponentType::mover);
EXPECT_FALSE(platform->IsMover());
EXPECT_FALSE(platform->SetCurrentPath("NoSuchPath"));
ASSERT_TRUE(platform->SetCurrentPath("TestTargetPath", 0));
ASSERT_TRUE(platform->IsMover());
auto* const mover = platform->GetMoverSubComponent();
EXPECT_EQ(mover->mState, 9u);
EXPECT_EQ(mover->mCurrentWaypointIndex, 0u);
EXPECT_EQ(mover->mNextWaypointIndex, 1u);
EXPECT_EQ(entity.GetPosition(), NiPoint3(1.0f, 2.0f, 3.0f));
// 1 (subcomponents), 1 (the path changed), 1 (there is one), its name's length
RakNet::BitStream withPath;
platform->Serialize(withPath, false);
EXPECT_EQ(Bits(withPath).substr(0, 3 + 16), "111" "0000111000000000");
RakNet::BitStream withoutPath;
platform->Serialize(withoutPath, false);
EXPECT_EQ(Bits(withoutPath).substr(0, 2), "10");
// It leaves after the shortest wait and passes the middle waypoint waiting there (9), as the live targets did
platform->Run(0.11f);
EXPECT_EQ(mover->mState, 2u);
platform->Run(2.1f);
EXPECT_EQ(mover->mState, 9u);
EXPECT_EQ(mover->mCurrentWaypointIndex, 1u);
platform->Run(0.11f);
EXPECT_EQ(mover->mState, 2u);
platform->Run(2.1f);
EXPECT_EQ(mover->mState, 28u);
EXPECT_EQ(mover->mCurrentWaypointIndex, 2u);
}
// The NJ counterweights in the live captures (LOT 16141, the Frakjaw battle): when the quick build completes the simple
// mover is serialized waiting at waypoint 0 (9), then travelling from it (2); it stops at its end without a
// serialization, where PlatformAtLastWaypoint tells the scripts
TEST_F(MovingPlatformComponentTest, BuiltSimpleMoverSetsOffLikeLive) {
info.lot = 16141;
info.pos = NiPoint3(10.0f, 20.0f, 30.0f);
info.rot = QuatUtils::IDENTITY;
Entity counterweight(288300744895900112, info);
counterweight.AddComponent<SimplePhysicsComponent>(-1);
auto* const platform = counterweight.AddComponent<MovingPlatformComponent>(41, "");
auto* const mover = platform->GetSimpleMoverSubComponent();
uint32_t atLastWaypoint = 0;
platform->AddPlatformAtLastWaypointCallback([&atLastWaypoint] { atLastWaypoint++; });
platform->OnCompleteQuickBuild();
RakNet::BitStream built;
platform->Serialize(built, false);
EXPECT_EQ(Bits(built), "101" "00000101000000000000000000000000" "0" "1" "00001001000000000000000000000000" "00000000000000000000000000000000" "0" "0");
counterweight.Update(0.0f); // timers added now start on the next update
counterweight.Update(0.11f);
EXPECT_EQ(mover->mState, 2u);
RakNet::BitStream travelling;
platform->Serialize(travelling, false);
EXPECT_EQ(Bits(travelling), "101" "00000101000000000000000000000000" "0" "1" "00000010000000000000000000000000" "00000000000000000000000000000000" "0" "0");
counterweight.Update(0.0f);
counterweight.Update(0.5f);
EXPECT_EQ(mover->mState, 2u);
EXPECT_EQ(atLastWaypoint, 0u);
counterweight.Update(0.6f);
EXPECT_EQ(mover->mState, 28u);
EXPECT_EQ(mover->mCurrentWaypointIndex, 1u);
EXPECT_EQ(atLastWaypoint, 1u);
EXPECT_EQ(counterweight.GetPosition(), NiPoint3(10.0f, 17.5f, 30.0f));
RakNet::BitStream arrived;
platform->Serialize(arrived, false);
EXPECT_EQ(Bits(arrived), "00");
}
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