ChipmunkTileCache.h

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

#import "ObjectiveChipmunk.h"
#import "ChipmunkAutoGeometry.h"


@class ChipmunkCachedTile;

@interface ChipmunkAbstractTileCache : NSObject {
@private
  ChipmunkAbstractSampler *_sampler;
  ChipmunkSpace *_space;
  
  cpFloat _tileSize;
  cpFloat _samplesPerTile;
  cpVect _tileOffset;
  
  NSUInteger _tileCount, _cacheSize;
  cpSpatialIndex *_tileIndex;
  ChipmunkCachedTile *_cacheHead, *_cacheTail;
  
  cpBB _ensuredBB;
  bool _ensuredDirty;
  
  bool _marchHard;
}

@property(nonatomic, assign) bool marchHard;

@property(nonatomic, assign) cpVect tileOffset;

@property(nonatomic, readonly) ChipmunkAbstractSampler *sampler;

-(id)initWithSampler:(ChipmunkAbstractSampler *)sampler space:(ChipmunkSpace *)space tileSize:(cpFloat)tileSize samplesPerTile:(NSUInteger)samplesPerTile cacheSize:(NSUInteger)cacheSize;

-(void)resetCache;

-(void)markDirtyRect:(cpBB)bounds;

-(void)ensureRect:(cpBB)bounds;

-(cpPolyline)simplify:(cpPolyline)polyline;

-(ChipmunkSegmentShape *)makeSegmentFor:(ChipmunkBody *)staticBody from:(cpVect)a to:(cpVect)b;

@end


@interface ChipmunkBasicTileCache : ChipmunkAbstractTileCache {
@private
  cpFloat _simplifyThreshold;
  
  cpFloat _segmentRadius;
  
  cpFloat _segmentFriction;
  cpFloat _segmentElasticity;
  
  cpGroup _segmentGroup;
  cpLayers _segmentLayers;
  
  cpCollisionType _segmentCollisionType;
}

@property(nonatomic, assign) cpFloat simplifyThreshold;

@property(nonatomic, assign) cpFloat segmentRadius;

@property(nonatomic, assign) cpFloat segmentFriction;

@property(nonatomic, assign) cpFloat segmentElasticity;

@property(nonatomic, assign) cpGroup segmentGroup;

@property(nonatomic, assign) cpLayers segmentLayers;

@property(nonatomic, assign) cpCollisionType segmentCollisionType;

@end