/*

OOStellarBody.h

Protocol shared by suns and planets (which used to be the same class).


Oolite
Copyright (C) 2004-2013 Giles C Williams and contributors

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA.

*/

#import "OOCocoa.h"
#import "OOWeakReference.h"
#import "OOTypes.h"
#import "OOMaths.h"


#ifndef NEW_PLANETS
// not for 1.77/8
#define NEW_PLANETS 0
#endif


typedef enum
{
	STELLAR_TYPE_SUN,
	STELLAR_TYPE_NORMAL_PLANET,	// Terrestrial planet with atmosphere and oceans
#if !NEW_PLANETS
	STELLAR_TYPE_ATMOSPHERE,
#endif
	STELLAR_TYPE_MOON,			// Rocky/airless planet
	STELLAR_TYPE_MINIATURE		// Display proxy for a "normal" planet
} OOStellarBodyType;


#define ATMOSPHERE_DEPTH		500.0
#define PLANET_MINIATURE_FACTOR	0.00185
#define MAX_SUBDIVIDE			6


@protocol OOStellarBody <NSObject, OOWeakReferenceSupport>

- (double) radius;
- (OOStellarBodyType) planetType;

@end
