/* $Id: objectitem.cpp,v 1.5 2005/06/28 13:55:21 chfreund Exp $ */

#include "object.hpp"
#include "objectitem.hpp"

/**********************************************************/

// setting attributes
#define  SATTR  (Setting::COMMA_SEPARATED     | \
                 Setting::EXPLICIT_ASSIGNMENT | \
                 Setting::CONFIG_FILE_ONLY)
#define  SATTRM (SATTR | Setting::MANDATORY)

/**********************************************************/

const SettingDef ObjectItem::
m_SettingDef[] =
{
	SettingDef("objects", NULL, Setting::STRING, 6, -1, SATTRM),
	SettingDef()
};

/**********************************************************/

ObjectItem::ObjectItem()
          : m_ObjectID(INVALID_OBJECT),
            m_x(0),  m_y(0),
            m_dx(0), m_dy(0),
            m_vx(0), m_vy(0)
{
}

/**********************************************************/

ObjectItem::~ObjectItem()
{
}

/**********************************************************/

bool ObjectItem::readFromSettings( SettingDataBase &settings,
                                   Sint32          &pos )
{
	const char fn[] = "ObjectItem::readFromSettings:";
	
	Setting *setting = settings.getSetting( "objects" );

	// check presence of parameters
	// Should be redundant, since the settings were checked
	// by method checkSettings before.
	DBG(1) {
		if( !CHECK( pos+7 <= setting->getNumParameters(),
		            "%s\n         there are not further 6 parameters "
		            "available\n         starting from parameter nr. "
		            "%d: \"%s\"\n",
		            fn, pos+1, setting->getString() ) ) {
			return false;
		}
	}
	
	// read and convert ID
	m_ObjectID = Object::getID( setting->getString(pos) );
	if( !CHECK( m_ObjectID != INVALID_OBJECT,
	            "%s parameter nr.%d: \"%s\" is not a valid "
	            "object string\n",
	            fn, pos+1, setting->getString(pos) ) ) {
		return false;
	}

	// read coordinates
	m_x  = atoi( setting->getString(++pos) );
	m_y  = atoi( setting->getString(++pos) );
	m_dx = atoi( setting->getString(++pos) );
	m_dy = atoi( setting->getString(++pos) );
	m_vx = atoi( setting->getString(++pos) );
	m_vy = atoi( setting->getString(++pos) );

	DBG(2) ASSERT( m_dx >= 0 && m_dy >= 0,
	               "%s read object item:\n      "
	               "%s, x:%d, y:%d,  dx:%d, dy:%d,  vx:%d, vy:%d\n"
	               "       -> tolerances dx, dy must be >= 0\n",
	               fn, Object::getIDString(m_ObjectID), m_x, m_y,
	               m_dx, m_dy, m_vx, m_vy );

	// check, if this was the last item defined in the settings
	if( ++pos >= setting->getNumParameters() )  pos = -1;

	LOG(4) INFO( "%s read object item:\n      "
	             "%s, x:%d, y:%d,  dx:%d, dy:%d,  vx:%d, vy:%d\n",
	             fn, Object::getIDString(m_ObjectID), m_x, m_y,
	             m_dx, m_dy, m_vx, m_vy );

	return true;
}

/**********************************************************/

bool ObjectItem::
checkSettings( SettingDataBase &settings )
{
	const char fn[] = "ObjectItem::checksettings:";
	
	Setting *setting = settings.getSetting( "objects" );
	
	if( !CHECK( setting != 0x0,
	            "%s setting \"objects\" not present\n",
	            fn ) ||
	    !CHECK( setting->getNumParameters() % 7 == 0,
	            "%s setting \"objects\" must have 7 parameters "
	            "per object (#parameters = %d)\n",
	            fn, setting->getNumParameters() ) ) {
		return false;
	}

	return true;
}

/**********************************************************/