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feat(moving platform): simple movers and rotaters, chosen as the client chooses

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The subcomponent comes from the platformIsMover, platformIsSimpleMover and
platformIsRotater settings; with none set, a platform without a registry
component is a mover and one with a registry component a simple mover (also
when it has an attached path, so the registry ID is passed then too). All
flags set false means no subcomponent.

A simple mover reads its MovingPlatforms row and the platformMove* settings,
is always constructed with its starting point and state as live did, and
travels between its start and start + platformMove in platformMoveTime.
A rotater is written as type 6 with a mover's data.

On arrival platforms fire OnWaypointReached, then OnArrivedAtDesiredWaypoint
at the waypoint they were sent to and OnPlatformAtLastWaypoint at an end.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Aaron Kimbrell
2026-09-30 09:59:55 -05:00
parent e9fe09ce9c
commit 72efae54eb
3 changed files with 301 additions and 15 deletions
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87
dGame/dComponents/MovingPlatformComponent.h
View File

@@ -8,6 +8,7 @@
#include "RakNetTypes.h"
#include "NiPoint3.h"
#include "NiQuaternion.h"
#include <string>
#include "dCommonVars.h"
@@ -25,9 +26,69 @@ enum class eMoverSubComponentType : uint32_t {
mover = 4,
/**
* Used in NJ
* A two point mover set up from the MovingPlatforms table or the platformMove* settings (used in NJ)
*/
simpleMover = 5,
simpleMover = 5,
/**
* A mover that turns between rotations along its path (same data as a mover)
*/
rotater = 6,
/**
* The level config set the platform flags all false: the client makes no subcomponent
*/
none = 0,
};
/**
* The client's platform state flags (LWOPlatform)
*/
namespace ePlatformStateFlag {
constexpr uint32_t Stopped = 1;
constexpr uint32_t Travelling = 2;
constexpr uint32_t Waiting = 4;
constexpr uint32_t ReachedDesiredWaypoint = 8;
constexpr uint32_t ReachedFinalDestination = 16;
};
/**
* How the client picks the subcomponent (LWOMovingPlatformComponent::LoadConfigData): the platformIsRotater,
* platformIsMover and platformIsSimpleMover settings, and when none is set a mover for a platform with no registry
* component (set up from its attached path) or a simple mover for one with a registry component.
* The client makes one subcomponent per flag set (mover, simple mover, rotater, LWOMovingPlatformComponent::SetupPlatform);
* DLU keeps one, the first in that order.
*/
eMoverSubComponentType ChooseMoverSubComponentType(int32_t componentID, const Entity& entity);
/**
* A mover between a start point and that point moved by platformMove (in the start rotation), taking
* platformMoveTime seconds, as LWOPlatformSimpleMover::GenerateSimpleMoverPath builds its two waypoint path.
*/
class SimpleMoverSubComponent {
public:
void Serialize(RakNet::BitStream& outBitStream, bool bIsInitialUpdate);
NiPoint3 mStartPosition{};
NiQuaternion mStartRotation{};
NiPoint3 mMove{};
float mMoveTime = 0.0f;
bool mStartAtEnd = false;
/**
* ePlatformStateFlag bits. Live constructed simple movers stopped at their desired waypoint.
*/
uint32_t mState = ePlatformStateFlag::Stopped | ePlatformStateFlag::ReachedDesiredWaypoint;
int32_t mCurrentWaypointIndex = 0;
bool mInReverse = false;
bool mDirtyStartingPoint = false;
bool mDirtyState = false;
/**
* The world position of a waypoint (0 the start, 1 the end)
*/
NiPoint3 GetWaypointPosition(int32_t index) const;
};
/**
@@ -187,6 +248,19 @@ public:
*/
MoverSubComponent* GetMoverSubComponent() const;
/**
* Returns the simple mover sub component, if this platform is a simple mover
*/
SimpleMoverSubComponent* GetSimpleMoverSubComponent() const;
eMoverSubComponentType GetMoverSubComponentType() const { return m_MoverSubComponentType; }
/**
* Called when a simple mover gets to the waypoint it was sent to: the client's LWOPlatform::ArrivedAtWaypoint
* and HandleWaypointArrived (Arrived, then ArrivedAtDesiredWaypoint and PlatformAtLastWaypoint)
*/
void OnSimpleMoverArrived(int32_t index);
private:
/**
@@ -214,6 +288,15 @@ private:
*/
void* m_MoverSubComponent;
/**
* Counts sends so an arrival timer from an older send does nothing
*/
uint32_t m_MoveGeneration = 0;
void SimpleMoverGotoWaypoint(int32_t index);
void FireArrivalHooks(uint32_t index, bool atDesiredWaypoint);
/**
* Whether the platform shouldn't auto start
*/