OOPlanetDrawable.h

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/*
 
OOPlanetDrawable.h
 
Draw a ball, such as might be used to represent a planet.
 
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 "OODrawable.h"
#import "OOMaths.h"
 
@class OOMaterial;
 
 
@interface OOPlanetDrawable: OODrawable <NSCopying>
{
@private
    OOMaterial                *_material;
    BOOL                    _isAtmosphere;
    float                   _radius;
    OOMatrix                _transform;
    unsigned                _lod;
}
 
+ (instancetype) planetWithTextureName:(NSString *)textureName radius:(float)radius;
+ (instancetype) atmosphereWithRadius:(float)radius;
 
- (id) initAsAtmosphere;
 
- (OOMaterial *) material;
- (void) setMaterial:(OOMaterial *)material;
 
- (NSString *) textureName;
- (void) setTextureName:(NSString *)textureName;
 
// Radius, in game metres.
- (float) radius;
- (void) setRadius:(float)radius;
 
// Level of detail, [0..1]. Granularity is implementation-defined.
- (float) levelOfDetail;
- (void) setLevelOfDetail:(float)lod;
- (void) calculateLevelOfDetailForViewDistance:(float)distance;
 
// depth-buffer hack
- (void) renderTranslucentPartsOnOpaquePass;
 
@end