thug/Code/Gel/Components/VelocityComponent.cpp

//****************************************************************************
//* MODULE:         Gel/Components
//* FILENAME:       VelocityComponent.cpp
//* OWNER:          SPG
//* CREATION DATE:  7/10/03
//****************************************************************************

// The CEmptyComponent class is an skeletal version of a component
// It is intended that you use this as the basis for creating new
// components.  
// To create a new component called "Watch", (CWatchComponent):
//  - copy emptycomponent.cpp/.h to watchcomponent.cpp/.h
//  - in both files, search and replace "Empty" with "Watch", preserving the case
//  - in WatchComponent.h, update the CRCD value of CRC_WATCH
//  - in CompositeObjectManager.cpp, in the CCompositeObjectManager constructor, add:
//		  	RegisterComponent(CRC_WATCH,			CWatchComponent::s_create); 
//  - and add the include of the header
//			#include <gel/components/watchcomponent.h> 
//  - Add it to build\gel.mkf, like:
//          $(NGEL)/components/WatchComponent.cpp\
//  - Fill in the OWNER (yourself) and the CREATION DATE (today's date) in the .cpp and the .h files
//	- Insert code as needed and remove generic comments
//  - remove these comments
//  - add comments specfic to the component, explaining its usage

#include <gel/components/VelocityComponent.h>

#include <gel/object/compositeobject.h>
#include <gel/scripting/checksum.h>
#include <gel/scripting/script.h>
#include <gel/scripting/struct.h>
#include <gel/scripting/array.h>

#include <sk/gamenet/gamenet.h>
namespace Obj
{

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// s_create is what is registered with the component factory 
// object, (currently the CCompositeObjectManager) 
// s_create	returns a CBaseComponent*, as it is to be used
// by factor creation schemes that do not care what type of
// component is being created
// **  after you've finished creating this component, be sure to
// **  add it to the list of registered functions in the
// **  CCompositeObjectManager constructor  

CBaseComponent* CVelocityComponent::s_create()
{
	return static_cast< CBaseComponent* >( new CVelocityComponent );	
}

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// All components set their type, which is a unique 32-bit number
// (the CRC of their name), which is used to identify the component	
CVelocityComponent::CVelocityComponent() : CBaseComponent()
{
    SetType( CRC_VELOCITY );
}

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CVelocityComponent::~CVelocityComponent()
{   
}

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// InitFromStructure is passed a Script::CStruct that contains a
// number of parameters to initialize this component
// this currently is the contents of a node
// but you can pass in anything you like.	
void CVelocityComponent::InitFromStructure( Script::CStruct* pParams )
{
	Mth::Vector vel;
	
	pParams->GetVector(CRCD(0xc4c809e, "vel"), &vel, Script::ASSERT);
	GetObject()->SetVel( vel );
}

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// RefreshFromStructure is passed a Script::CStruct that contains a
// number of parameters to initialize this component
// this currently is the contents of a node
// but you can pass in anything you like.	
void CVelocityComponent::RefreshFromStructure( Script::CStruct* pParams )
{
	// Default to just calline InitFromStructure()
	// but if that does not handle it, then will need to write a specific 
	// function here. 
	// The user might only want to update a single field in the structure
	// and we don't want to be asserting becasue everything is missing 
	
	//InitFromStructure(pParams);
}

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void CVelocityComponent::Finalize()
{
	mp_suspend_component =  GetSuspendComponentFromObject( GetObject() );
}
	

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void	CVelocityComponent::Hide( bool should_hide )
{
}


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// The component's Update() function is called from the CCompositeObject's 
// Update() function.  That is called every game frame by the CCompositeObjectManager
// from the s_logic_code function that the CCompositeObjectManager registers
// with the task manger.
void CVelocityComponent::Update()
{
	GameNet::Manager* gamenet_man = GameNet::Manager::Instance();

	if (gamenet_man->InNetGame() || !mp_suspend_component->SkipLogic())
	{
		Mth::Vector pos, cur_pos, vel;

		cur_pos = GetObject()->GetPos();
		vel = GetObject()->GetVel();
		pos = cur_pos + ( GetObject()->GetVel() * 0.5f * Tmr::FrameLength());
		GetObject()->SetPos( pos );
	}
}

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// Given the "Checksum" of a script command, then possibly handle it
// if it's a command that this component will handle	
CBaseComponent::EMemberFunctionResult CVelocityComponent::CallMemberFunction( uint32 Checksum, Script::CStruct* pParams, Script::CScript* pScript )
{
	switch ( Checksum )
	{
		default:
			return CBaseComponent::MF_NOT_EXECUTED;
	}

	// the "default" case of the switch statement handles
	// unrecognized functions;  if we make it down here,
	// that means that the component already handled it
	// somehow
    return CBaseComponent::MF_TRUE;
}

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void CVelocityComponent::GetDebugInfo(Script::CStruct *p_info)
{
	Dbg_MsgAssert(p_info,("NULL p_info sent to CVelocityComponent::GetDebugInfo"));

	// Add any script components to the p_info structure,
	// and they will be displayed in the script debugger (qdebug.exe)
	// you will need to add the names to debugger_names.q, if they are not existing checksums
	

// we call the base component's GetDebugInfo, so we can add info from the common base component										 
	CBaseComponent::GetDebugInfo(p_info);	  
}

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}