ChipmunkAutoGeometry.h

// Copyright 2013 Howling Moon Software. All rights reserved.
// See http://chipmunk2d.net/legal.php for more information.

#import "ObjectiveChipmunk/ObjectiveChipmunk.h"

#import "chipmunk/cpMarch.h"
#import "chipmunk/cpPolyline.h"

@class ChipmunkPolylineSet;

@interface ChipmunkPolyline : NSObject {
@private
  cpPolyline *_line;
  cpFloat _area;
}

-(id)initWithPolyline:(cpPolyline *)line;
+(ChipmunkPolyline *)fromPolyline:(cpPolyline *)line;

@property(nonatomic, readonly) bool isClosed;

@property(nonatomic, readonly) cpFloat area;

@property(nonatomic, readonly) cpVect centroid;

-(cpFloat)momentForMass:(cpFloat)mass offset:(cpVect)offset;


@property(nonatomic, readonly) NSUInteger count;

@property(nonatomic, readonly) const cpVect *verts;

-(ChipmunkPolyline *)simplifyCurves:(cpFloat)tolerance;

-(ChipmunkPolyline *)simplifyVertexes:(cpFloat)tolerance;

-(ChipmunkPolyline *)toConvexHull;

-(ChipmunkPolyline *)toConvexHull:(cpFloat)tolerance;

-(ChipmunkPolylineSet *)toConvexHulls_BETA:(cpFloat)tolerance;

-(NSArray *)asChipmunkSegmentsWithBody:(ChipmunkBody *)body radius:(cpFloat)radius offset:(cpVect)offset;

-(ChipmunkPolyShape *)asChipmunkPolyShapeWithBody:(ChipmunkBody *)body transform:(cpTransform)transform radius:(cpFloat)radius;

@end


@interface ChipmunkPolylineSet : NSObject<NSFastEnumeration> {
@private
  NSMutableArray *_lines;
}

-(id)initWithPolylineSet:(cpPolylineSet *)set;
+(ChipmunkPolylineSet *)fromPolylineSet:(cpPolylineSet *)set;

@property(nonatomic, readonly) NSUInteger count;

-(ChipmunkPolyline *)lineAtIndex:(NSUInteger)index;

@end


@interface ChipmunkAbstractSampler : NSObject {
@protected
  cpFloat _marchThreshold;
  cpMarchSampleFunc _sampleFunc;
}

@property(nonatomic, assign) cpFloat marchThreshold;

@property(nonatomic, readonly) cpMarchSampleFunc sampleFunc;

-(id)initWithSamplingFunction:(cpMarchSampleFunc)sampleFunc;

-(cpFloat)sample:(cpVect)pos;

-(ChipmunkPolylineSet *)march:(cpBB)bb xSamples:(NSUInteger)xSamples ySamples:(NSUInteger)ySamples hard:(bool)hard;

@end



typedef cpFloat (^ChipmunkMarchSampleBlock)(cpVect point);

@interface ChipmunkBlockSampler : ChipmunkAbstractSampler {
  ChipmunkMarchSampleBlock _block;
}

-(id)initWithBlock:(ChipmunkMarchSampleBlock)block;
+(ChipmunkBlockSampler *)samplerWithBlock:(ChipmunkMarchSampleBlock)block;

@end



#import "ChipmunkImageSampler.h"
#import "ChipmunkPointCloudSampler.h"
#import "ChipmunkTileCache.h"