CWE-ou-minkata/MOULOpenSourceClientPlugin/Plasma20/Sources/Plasma/PubUtilLib/plAvatar/plAvBrainSwim.cpp

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.

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*==LICENSE==*/

/////////////////////////////////////////////////////////////////////////////////////////
//
// INCLUDES
//
/////////////////////////////////////////////////////////////////////////////////////////

//#include <hkmath/vector3.h>
//#include <hkdynamics/entity/rigidbody.h>
#include "plAntiGravAction.h"		// descends from Havok class, so must be included first, like havok objects

// singular
#include "plAvBrainSwim.h"

// local
#include "plArmatureMod.h"
#include "plAvBehaviors.h"
#include "plAvBrainHuman.h"
#include "plAGAnim.h"
#include "plAvBrainDrive.h"
#include "plMatrixChannel.h"
#include "plSwimRegion.h"
#include "plAvatarTasks.h"
#include "plArmatureEffects.h"
#include "plAvTaskBrain.h"
// global
#include "hsQuat.h"
#include "hsTimer.h"
#include "plPhysical.h"
#include "plPhysicalControllerCore.h"
#include "plAvCallbackAction.h"
// other
#include "../plPhysical/plCollisionDetector.h"
#include "../plPipeline/plDebugText.h"

#include "../plMessage/plAvatarMsg.h"
#include "../plMessage/plSwimMsg.h"
#include "../plMessage/plLOSRequestMsg.h"
#include "../plMessage/plLOSHitMsg.h"
#include "../plMessage/plInputEventMsg.h"
#include "../plMessage/plSimStateMsg.h"
#include "../pnMessage/plCameraMsg.h"
#include "../pfMessage/plArmatureEffectMsg.h"

class plSwimBehavior : public plArmatureBehavior
{
	friend class plAvBrainSwim;

public:	
	plSwimBehavior() : fAvMod(nil), fSwimBrain(nil) {}
	virtual ~plSwimBehavior() {}
	
	void Init(plAGAnim *anim, hsBool loop, plAvBrainSwim *brain, plArmatureMod *body, UInt8 index)
	{
		plArmatureBehavior::Init(anim, loop, brain, body, index);
		fAvMod = body;
		fSwimBrain = brain;
	}
	
	virtual hsBool PreCondition(double time, float elapsed) { return true; }
	
protected:
	virtual void IStart()
	{
		plArmatureBehavior::IStart();
		fAvMod->SynchIfLocal(hsTimer::GetSysSeconds(), false);
	}
	
	virtual void IStop()
	{
		plArmatureBehavior::IStop();
		fAvMod->SynchIfLocal(hsTimer::GetSysSeconds(), false);
	}		
	
	plArmatureMod *fAvMod;
	plAvBrainSwim *fSwimBrain;
};

class SwimForward: public plSwimBehavior
{
public:
	/** Walk key is down, fast key is not down */
	virtual hsBool PreCondition(double time, float elapsed)
	{
		return (fAvMod->ForwardKeyDown() && !fAvMod->FastKeyDown());
	}
};

class SwimForwardFast: public plSwimBehavior
{
public:
	virtual hsBool PreCondition(double time, float elapsed)
	{
		return (fAvMod->ForwardKeyDown() && fAvMod->FastKeyDown());
	}
};

class SwimBack : public plSwimBehavior
{
public:
	virtual hsBool PreCondition(double time, float elapsed)
	{
		return (fAvMod->BackwardKeyDown());
	}
};

class TreadWater: public plSwimBehavior
{
};

class SwimLeft : public plSwimBehavior
{
public:
	virtual hsBool PreCondition(double time, float elapsed)
	{
		return ((fAvMod->StrafeLeftKeyDown() || (fAvMod->StrafeKeyDown() && fAvMod->TurnLeftKeyDown())) &&
				!(fAvMod->StrafeRightKeyDown() || (fAvMod->StrafeKeyDown() && fAvMod->TurnRightKeyDown())) &&
				!(fAvMod->ForwardKeyDown() || fAvMod->BackwardKeyDown()));
	}
};

class SwimRight : public plSwimBehavior
{
public:
	virtual hsBool PreCondition(double time, float elapsed)
	{
		return ((fAvMod->StrafeRightKeyDown() || (fAvMod->StrafeKeyDown() && fAvMod->TurnRightKeyDown())) &&
				!(fAvMod->StrafeLeftKeyDown() || (fAvMod->StrafeKeyDown() && fAvMod->TurnLeftKeyDown())) &&
				!(fAvMod->ForwardKeyDown() || fAvMod->BackwardKeyDown()));
	}
};

class SwimTurn: public plSwimBehavior
{
public:
	virtual void Process(double time, float elapsed)
	{
		static const float maxTurnSpeed = 1.0f;			// radians per second;
		static const float timeToMaxTurn = 0.5f;
		static const float incPerSec = maxTurnSpeed / timeToMaxTurn;

//		hsAssert(0, "fixme physx");
 		float oldSpeed = fabs(fSwimBrain->fCallbackAction->GetTurnStrength());
 		float thisInc = elapsed * incPerSec;
 		float newSpeed = __min(oldSpeed + thisInc, maxTurnSpeed);
 		fSwimBrain->fCallbackAction->SetTurnStrength(newSpeed * fAvMod->GetKeyTurnStrength() + fAvMod->GetAnalogTurnStrength());
		// the turn is actually applied during PhysicsUpdate
	}
	virtual void IStop()
	{
//		hsAssert(0, "fixme physx");
 		if (fSwimBrain->fCallbackAction)
 			fSwimBrain->fCallbackAction->SetTurnStrength(0.0f);
		plSwimBehavior::IStop();
	}
};

class SwimTurnLeft : public SwimTurn
{
public:
	virtual hsBool PreCondition(double time, float elapsed)
	{
		return (fAvMod->GetTurnStrength() > 0 && (fAvMod->ForwardKeyDown() || fAvMod->BackwardKeyDown()));
	}
};

class SwimTurnRight : public SwimTurn
{
public:
	virtual hsBool PreCondition(double time, float elapsed)
	{
		return (fAvMod->GetTurnStrength() < 0 && (fAvMod->ForwardKeyDown() || fAvMod->BackwardKeyDown()));
	}
};

class TreadTurnLeft : public plSwimBehavior
{
public:
	virtual hsBool PreCondition(double time, float elapsed)
	{
		return (fAvMod->TurnLeftKeyDown() && !fAvMod->ForwardKeyDown() && !fAvMod->BackwardKeyDown());
	}
};

class TreadTurnRight : public plSwimBehavior
{
public:
	virtual hsBool PreCondition(double time, float elapsed)
	{
		return (fAvMod->TurnRightKeyDown() && !fAvMod->ForwardKeyDown() && !fAvMod->BackwardKeyDown());
	}
};	

///////////////////////////////////////////////////////////////////////////////////////////

const hsScalar plAvBrainSwim::kMinSwimDepth = 4.0f;

plAvBrainSwim::plAvBrainSwim() : 
	fCallbackAction(nil),
	fMode(kWalking),
	fSurfaceDistance(0.f)
{
	fSurfaceProbeMsg = TRACKED_NEW plLOSRequestMsg();
	fSurfaceProbeMsg->SetReportType(plLOSRequestMsg::kReportHitOrMiss);
	fSurfaceProbeMsg->SetRequestType(plSimDefs::kLOSDBSwimRegion);
	fSurfaceProbeMsg->SetTestType(plLOSRequestMsg::kTestAny);
	fSurfaceProbeMsg->SetRequestID(plArmatureMod::kAvatarLOSSwimSurface);
}
	
plAvBrainSwim::~plAvBrainSwim()
{
	if(fCallbackAction)
	{
		IDetachAction();
		delete fCallbackAction;
		fCallbackAction=nil;
	}
	fSurfaceProbeMsg->UnRef();

	int i;
	for (i = 0; i < fBehaviors.GetCount(); i++)
		delete fBehaviors[i];
}

hsBool plAvBrainSwim::Apply(double time, hsScalar elapsed)
{
	IProbeSurface();
	if (fMode == kWalking)
	{
		if (fSurfaceDistance >= 0.f)
		{
			fMode = kWading;

			plAvBrainHuman *huBrain = plAvBrainHuman::ConvertNoRef(fAvMod->GetNextBrain(this));
//			hsAssert(0, "fixme physx");
			if (huBrain && !huBrain->fCallbackAction->IsOnGround())
			{
				// We're jumping in! Trigger splash effect (sound)				
				plArmatureEffectMsg *msg = TRACKED_NEW plArmatureEffectMsg(fAvMod->GetArmatureEffects()->GetKey(), kTime);
				msg->fEventTime = (hsScalar)time;
				msg->fTriggerIdx = plArmatureMod::kImpact;

				plEventCallbackInterceptMsg *iMsg = TRACKED_NEW plEventCallbackInterceptMsg;
				iMsg->AddReceiver(fAvMod->GetArmatureEffects()->GetKey());
				iMsg->fEventTime = (hsScalar)time;
				iMsg->fEvent = kTime;
				iMsg->SetMessage(msg);
				iMsg->Send();
			}
		}
	}
	
	plArmatureBrain *nextBrain = fAvMod->GetNextBrain(this);
	if (fMode == kWading)
	{
		if (fSurfaceDistance > kMinSwimDepth && fSurfaceDistance < 100.0f) 
			IStartSwimming(true);
		else if (fSurfaceDistance < 0.f)
			fMode = kWalking;
	} 

	int i;
	if (fMode == kWalking || fMode == kWading || nextBrain->IsRunningTask())
	{
		nextBrain->Apply(time, elapsed); // Let brain below process for us				

		for (i = 0; i < kSwimBehaviorMax; i++)
			fBehaviors[i]->SetStrength(0.f, 2.f);
	}
	else if (fMode == kAbort)
		return false;
	else 
	{
		if (fMode == kSwimming2D) 
		{
			IProcessSwimming2D(time, elapsed);

			// The contact check is so that if buoyancy bobs us a little too high, we don't
			// switch to wading only to fall again.
//			hsAssert(0, "fixme physx");
			if (fSurfaceDistance < kMinSwimDepth-.5  && fCallbackAction->HadContacts())
				IStartWading();
		} 
		else if (fMode == kSwimming3D) 
			IProcessSwimming3D(time, elapsed);
	}
	return plArmatureBrain::Apply(time, elapsed);
}

hsBool plAvBrainSwim::MsgReceive(plMessage *msg)
{
	plLOSHitMsg *losHit = plLOSHitMsg::ConvertNoRef(msg);
	if (losHit)
	{
		if (losHit->fRequestID == plArmatureMod::kAvatarLOSSwimSurface)
		{
			plSwimRegionInterface *region = nil;
			if (!losHit->fNoHit)
			{
				plSceneObject *hitObj = plSceneObject::ConvertNoRef(losHit->fObj->ObjectIsLoaded());
				region = hitObj ? plSwimRegionInterface::ConvertNoRef(hitObj->GetGenericInterface(plSwimRegionInterface::Index())) : nil;
				//100-fDistance because of casting the ray from above to get around physxs Raycast requirments
				fSurfaceDistance = 100.f-losHit->fDistance;
			}
			else
				fSurfaceDistance = -100.f;

//			hsAssert(0, "fixme physx");
 			if (fCallbackAction)
 			{
 				if (region)
 					fCallbackAction->SetSurface(region, fArmature->GetTarget(0)->GetLocalToWorld().GetTranslate().fZ + fSurfaceDistance);
 				else
 					fCallbackAction->SetSurface(nil, 0.f);
 			}
			return true;
		}
	}
	
	plSwimMsg *swimMsg = plSwimMsg::ConvertNoRef(msg);
	if (swimMsg)
	{
		if (swimMsg->GetIsLeaving())
			fMode = kAbort;
		
		return true;
	}
	
	plControlEventMsg *ctrlMsg = plControlEventMsg::ConvertNoRef(msg);
	if (ctrlMsg)
		return IHandleControlMsg(ctrlMsg);	
	
	if (fMode == kWalking || fMode == kWading)
		return fAvMod->GetNextBrain(this)->MsgReceive(msg);			
	
	if (plAvSeekMsg *seekM = plAvSeekMsg::ConvertNoRef(msg))
	{
		
		// seek and subclasses always have a seek first
		if (!seekM->fNoSeek)
		{
			// use dumb seek
			plAvSeekTask *seek = TRACKED_NEW plAvSeekTask(seekM->fSeekPoint, seekM->fAlignType, seekM->fAnimName);
			QueueTask(seek);
		}
		// else don't seek at all.
			
		plAvOneShotMsg * oneshotM = plAvOneShotMsg::ConvertNoRef(msg);
		if(oneshotM)
		{
			// if it's a oneshot, add the oneshot task as well
			plAvOneShotTask *oneshot = TRACKED_NEW plAvOneShotTask(oneshotM, fAvMod, this);
			QueueTask(oneshot);
		}
		return true;		
	}

	if (plArmatureBrain::MsgReceive(msg))
		return true;

	if (fMode == kWading) // Things like LOS need to go to the human brain below us.
		return fAvMod->GetNextBrain(this)->MsgReceive(msg);
	
	return false;
}

void plAvBrainSwim::Activate(plArmatureModBase* avMod)
{
	plArmatureBrain::Activate(avMod);
	
	IInitAnimations();
	fSurfaceProbeMsg->SetSender(fAvMod->GetKey());
	
	// turn our underlying brain back on until we're all the way in the water.
	fAvMod->GetNextBrain(this)->Resume();
}

void plAvBrainSwim::Deactivate()
{
	plArmatureBrain::Deactivate();
	
	IDetachAction();
}

void plAvBrainSwim::Suspend()
{
	if (fMode == kSwimming2D)
		IDetachAction();
}

void plAvBrainSwim::Resume()
{
	if (fMode == kSwimming2D)
		IAttachAction();
}

bool plAvBrainSwim::IsWalking()
{
	return fMode == kWalking;
}

bool plAvBrainSwim::IsWading()
{
	return fMode == kWading;
}

bool plAvBrainSwim::IsSwimming()
{
	return (fMode == kSwimming2D || fMode == kSwimming3D);
}

void plAvBrainSwim::IStartWading()
{
	plArmatureBrain *nextBrain = fAvMod->GetNextBrain(this);
	nextBrain->Resume();
	fMode = kWading;
	
	int i;
	for (i = 0; i < fBehaviors.GetCount(); i++)
		fBehaviors[i]->SetStrength(0.f, 2.f);
	
	IDetachAction();
	
	if (fAvMod->IsLocalAvatar())
	{
		plCameraMsg* pMsg = TRACKED_NEW plCameraMsg;
		pMsg->SetBCastFlag(plMessage::kBCastByExactType);
		pMsg->SetBCastFlag(plMessage::kNetPropagate, false);
		pMsg->SetCmd(plCameraMsg::kResponderUndoThirdPerson);
		pMsg->Send();
	}	
}

void plAvBrainSwim::IStartSwimming(bool is2D)
{
	// if we *were* wading, the next brain will be running as well. turn it off
	// if we weren't wading, there's no harm in suspending it redundantly.
	plArmatureBrain *nextBrain = fAvMod->GetNextBrain(this);
	nextBrain->Suspend();
	
	IAttachAction();
	if (is2D)
		fMode = kSwimming2D;
	else
		fMode = kSwimming3D;
	
	if (fAvMod->IsLocalAvatar())
	{
		plCameraMsg* pMsg = TRACKED_NEW plCameraMsg;
		pMsg->SetBCastFlag(plMessage::kBCastByExactType);
		pMsg->SetBCastFlag(plMessage::kNetPropagate, false);
		pMsg->SetCmd(plCameraMsg::kResponderSetThirdPerson);
		pMsg->Send();
	}	
}

hsBool plAvBrainSwim::IProcessSwimming2D(double time, float elapsed)
{
	int i;
	for (i = 0; i < fBehaviors.GetCount(); i++)
	{
		plSwimBehavior *behavior = (plSwimBehavior*)fBehaviors[i];
		if (behavior->PreCondition(time, elapsed) && !IsRunningTask())
		{
			behavior->SetStrength(1.f, 2.f);
			behavior->Process(time, elapsed);
		}	
		else
			behavior->SetStrength(0.f, 2.f);
	}
//	hsAssert(0, "fixme physx");
	fCallbackAction->RecalcVelocity(time, time - elapsed);

	return true;
}

hsBool plAvBrainSwim::IProcessSwimming3D(double time, float elapsed)
{
	fAvMod->ApplyAnimations(time, elapsed);
	return true;
}

hsBool plAvBrainSwim::IInitAnimations()
{
	plAGAnim *treadWater = fAvMod->FindCustomAnim("SwimIdle");
	plAGAnim *swimForward = fAvMod->FindCustomAnim("SwimSlow");
	plAGAnim *swimForwardFast = fAvMod->FindCustomAnim("SwimFast");
	plAGAnim *swimBack = fAvMod->FindCustomAnim("SwimBackward");
	plAGAnim *swimLeft = fAvMod->FindCustomAnim("SideSwimLeft");
	plAGAnim *swimRight = fAvMod->FindCustomAnim("SideSwimRight");
	plAGAnim *treadWaterLeft = fAvMod->FindCustomAnim("TreadWaterTurnLeft");
	plAGAnim *treadWaterRight = fAvMod->FindCustomAnim("TreadWaterTurnRight");	

	static const float defaultFade = 2.0f;
	fBehaviors.SetCountAndZero(kSwimBehaviorMax);
	plSwimBehavior *behavior;
	fBehaviors[kTreadWater] = behavior = TRACKED_NEW TreadWater;
	behavior->Init(treadWater, true, this, fAvMod, kTreadWater);

	fBehaviors[kSwimForward] = behavior = TRACKED_NEW SwimForward;
	behavior->Init(swimForward, true, this, fAvMod, kSwimForward);

	fBehaviors[kSwimForwardFast] = behavior = TRACKED_NEW SwimForwardFast;
	behavior->Init(swimForwardFast, true, this, fAvMod, kSwimForwardFast);

	fBehaviors[kSwimBack] = behavior = TRACKED_NEW SwimBack;		
	behavior->Init(swimBack, true, this, fAvMod, kSwimBack);
	
	fBehaviors[kSwimLeft] = behavior = TRACKED_NEW SwimLeft;
	behavior->Init(swimLeft, true, this, fAvMod, kSwimLeft);
	
	fBehaviors[kSwimRight] = behavior = TRACKED_NEW SwimRight;		
	behavior->Init(swimRight, true, this, fAvMod, kSwimRight);
	
	fBehaviors[kSwimTurnLeft] = behavior = TRACKED_NEW SwimTurnLeft;
	behavior->Init(nil, true, this, fAvMod, kSwimTurnLeft);
	
	fBehaviors[kSwimTurnRight] = behavior = TRACKED_NEW SwimTurnRight;
	behavior->Init(nil, true, this, fAvMod, kSwimTurnRight);
	
	fBehaviors[kTreadTurnLeft] = behavior = TRACKED_NEW TreadTurnLeft;
	behavior->Init(treadWaterLeft, true, this, fAvMod, kTreadTurnLeft);
	
	fBehaviors[kTreadTurnRight] = behavior = TRACKED_NEW TreadTurnRight;
	behavior->Init(treadWaterRight, true, this, fAvMod, kTreadTurnRight);
	
	return true;
}

bool plAvBrainSwim::IAttachAction()
{
	bool result = false;
	if(fAvMod)
	{
//		hsAssert(0, "fixme physx");
 		plPhysicalControllerCore *physical = fAvMod->GetController();
 		
 		if (physical)
 		{
 			if (!fCallbackAction)
 			{
 				 plSceneObject * avObj = fArmature->GetTarget(0);
 				plAGModifier *agMod = const_cast<plAGModifier*>(plAGModifier::ConvertNoRef(FindModifierByClass(avObj, plAGModifier::Index())));				
				fCallbackAction = new plSwimmingController(avObj, agMod->GetApplicator(kAGPinTransform),physical);
//				physical->AttachAction(fCallbackAction, true, false);
 				result = true;
 			}
			else
			{
				fCallbackAction->ActivateController();
			}

 		}
	}
	return result;
}

bool plAvBrainSwim::IDetachAction()
{
	bool result = false;

	if (fCallbackAction)
	{
//		hsAssert(0, "fixme physx");
// 		plPhysical *physical = fAvMod->GetPhysical();
// 
// 		if(physical)
// 		{
//			physical->RemoveAction(fCallbackAction);
// 			result = true;		// there was an action and we removed it
// 		}

		// TODO: We get a compiler warning about deleting a pointer to an
		// undefined class. So, who knows what the code is actually doing.
		// Seems bad. Just putting a note in here for whoever fixes the
		// physx issue.
		//delete fCallbackAction;
		//fCallbackAction = nil;
	}
	return result;
}

void plAvBrainSwim::IProbeSurface()
{
	hsPoint3 ourPos = fAvMod->GetTarget(0)->GetLocalToWorld().GetTranslate();
	hsPoint3 up = ourPos;
	up.fZ += 100;
	fSurfaceProbeMsg->SetFrom(up);
	fSurfaceProbeMsg->SetTo(ourPos);
	fSurfaceProbeMsg->SendAndKeep();
}

hsBool plAvBrainSwim::IHandleControlMsg(plControlEventMsg* msg)
{
	ControlEventCode moveCode = msg->GetControlCode();
	if (msg->ControlActivated())
	{
		switch (moveCode)
		{
		case B_CONTROL_TOGGLE_PHYSICAL:
			{
#ifndef PLASMA_EXTERNAL_RELEASE		// external clients can't go non-physical
				plAvBrainDrive *driver = TRACKED_NEW plAvBrainDrive(20, 1);
				fAvMod->PushBrain(driver);
#endif
				return true;
			}
			break;
		}
	}
	return false;
}


void plAvBrainSwim::DumpToDebugDisplay(int &x, int &y, int lineHeight, char *strBuf, plDebugText &debugTxt)
{
	sprintf(strBuf, "Brain type: Swim");
	debugTxt.DrawString(x, y, strBuf, 0, 255, 255);
	y += lineHeight;
	
	switch(fMode) {
		case kWading:
			sprintf(strBuf, "Mode: Wading");
			break;
		case kSwimming2D:
			sprintf(strBuf, "Mode: Swimming2D");
			break;
		case kSwimming3D:
			sprintf(strBuf, "Mode: Swimming3D");
			break;
		case kAbort:
			sprintf(strBuf, "Mode: Abort (you should never see this)");
			break;
	}
	debugTxt.DrawString(x, y, strBuf);
	y += lineHeight;


//	hsAssert(0, "fixme physx");
//	float buoy = fCallbackAction? fCallbackAction->GetBuoyancy() : 0.0f;
//	sprintf(strBuf, "Distance to surface: %f Buoyancy: %f", fSurfaceDistance, buoy);
//	debugTxt.DrawString(x, y, strBuf);
//	y += lineHeight;
// 
// 	hsVector3 linV;
// 	fAvMod->GetPhysical()->GetLinearVelocitySim(linV);
// 	hsVector3 angV;
// 	fAvMod->GetPhysical()->GetAngularVelocitySim(angV);
// 	hsScalar angle = angV.fZ > 0 ? angV.Magnitude() : -angV.Magnitude();
// 	sprintf(strBuf, "Velocity: Linear (%5.2f, %5.2f, %5.2f), Angular %5.2f", linV.fX, linV.fY, linV.fZ, angle);
// 	debugTxt.DrawString(x, y, strBuf);
// 	y += lineHeight;
	
	int i;
	for (i = 0; i < fBehaviors.GetCount(); i++)
		fBehaviors[i]->DumpDebug(x, y, lineHeight, strBuf, debugTxt);
}