anki-3d-engine/src/scene/Movable.cpp

#include "anki/scene/Movable.h"
#include "anki/scene/Property.h"

namespace anki {

//==============================================================================
Movable::Movable(U32 flags_, Movable* parent, PropertyMap& pmap)
	: Base(this, parent), Flags(flags_)
{
	pmap.addNewProperty(
		new ReadWritePointerProperty<Transform>("localTransform", &lTrf));
	pmap.addNewProperty(
		new ReadPointerProperty<Transform>("worldTransform", &wTrf));
}

//==============================================================================
Movable::~Movable()
{}

//==============================================================================
void Movable::update()
{
	if(getParent() == nullptr) // If root
	{
		updateWorldTransform();
	}
}

//==============================================================================
void Movable::updateWorldTransform()
{
	prevWTrf = wTrf;
	Movable* parent = getParent();
	U32 crntTimestamp = Timestamp::getTimestamp();

	if(parent)
	{
		if(parent->timestamp == crntTimestamp
			|| timestamp == crntTimestamp)
		{
			if(isFlagEnabled(MF_IGNORE_LOCAL_TRANSFORM))
			{
				wTrf = parent->getWorldTransform();
			}
			else
			{
				wTrf = Transform::combineTransformations(
					parent->getWorldTransform(), lTrf);
			}
			timestamp = crntTimestamp;
		}
	}
	else if(timestamp == crntTimestamp)
	{
		wTrf = lTrf;
	}

	if(timestamp == crntTimestamp)
	{
		movableUpdate();
	}

	Movable::Container::iterator it = getChildrenBegin();
	for(; it != getChildrenEnd(); it++)
	{
		(*it)->updateWorldTransform();
	}
}

} // namespace anki