ChipmunkShape.h

/* Copyright (c) 2013 Scott Lembcke and Howling Moon Software
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

@class ChipmunkPointQueryInfo;
@class ChipmunkSegmentQueryInfo;


@interface ChipmunkShape : NSObject <ChipmunkBaseObject> {
@private
  id _userData;
}

+(ChipmunkShape *)shapeFromCPShape:(cpShape *)shape;

@property(nonatomic, readonly) cpShape *shape;

@property(nonatomic, retain) ChipmunkBody *body;

// TODO doc
@property(nonatomic, assign) cpFloat mass;
@property(nonatomic, assign) cpFloat density;
@property(nonatomic, readonly) cpFloat moment;
@property(nonatomic, readonly) cpFloat area;
@property(nonatomic, readonly) cpVect centerOfGravity;

@property(nonatomic, readonly) cpBB bb;

@property(nonatomic, assign) BOOL sensor;

@property(nonatomic, assign) cpFloat elasticity;

@property(nonatomic, assign) cpFloat friction;

@property(nonatomic, assign) cpVect surfaceVelocity;

@property(nonatomic, assign) cpCollisionType collisionType;

@property(nonatomic, assign) cpShapeFilter filter;

@property(nonatomic, readonly) ChipmunkSpace *space;

@property(nonatomic, assign) id userData;

- (cpBB)cacheBB;

- (ChipmunkPointQueryInfo *)pointQuery:(cpVect)point;
- (ChipmunkSegmentQueryInfo *)segmentQueryFrom:(cpVect)start to:(cpVect)end radius:(cpFloat)radius;

@end


@interface ChipmunkPointQueryInfo : NSObject {
  @private
  cpPointQueryInfo _info;
}

- (id)initWithInfo:(cpPointQueryInfo *)info;

@property(nonatomic, readonly) cpPointQueryInfo *info;

@property(nonatomic, readonly) ChipmunkShape *shape;

@property(nonatomic, readonly) cpVect point;

@property(nonatomic, readonly) cpFloat distance;

@property(nonatomic, readonly) cpVect gradient;

@end


@interface ChipmunkSegmentQueryInfo : NSObject {
@private
  cpSegmentQueryInfo _info;
  cpVect _start, _end;
}

- (id)initWithInfo:(cpSegmentQueryInfo *)info start:(cpVect)start end:(cpVect)end;

@property(nonatomic, readonly) cpSegmentQueryInfo *info;

@property(nonatomic, readonly) ChipmunkShape *shape;

@property(nonatomic, readonly) cpFloat t;

@property(nonatomic, readonly) cpVect normal;

@property(nonatomic, readonly) cpVect point;

@property(nonatomic, readonly) cpFloat dist;

@property(nonatomic, readonly) cpVect start;

@property(nonatomic, readonly) cpVect end;

@end


@interface ChipmunkShapeQueryInfo : NSObject {
@private
  ChipmunkShape *_shape;
  cpContactPointSet _contactPoints;
}

- (id)initWithShape:(ChipmunkShape *)shape andPoints:(cpContactPointSet *)set;

@property(nonatomic, readonly) ChipmunkShape *shape;
@property(nonatomic, readonly) cpContactPointSet *contactPoints;

@end


@interface ChipmunkCircleShape : ChipmunkShape

+ (id)circleWithBody:(ChipmunkBody *)body radius:(cpFloat)radius offset:(cpVect)offset;

- (id)initWithBody:(ChipmunkBody *)body radius:(cpFloat)radius offset:(cpVect)offset;

@property(nonatomic, readonly) cpFloat radius;

@property(nonatomic, readonly) cpVect offset;

@end


@interface ChipmunkSegmentShape : ChipmunkShape

+ (id)segmentWithBody:(ChipmunkBody *)body from:(cpVect)a to:(cpVect)b radius:(cpFloat)radius;

- (id)initWithBody:(ChipmunkBody *)body from:(cpVect)a to:(cpVect)b radius:(cpFloat)radius;

- (void)setPrevNeighbor:(cpVect)prev nextNeighbor:(cpVect)next;

@property(nonatomic, readonly) cpVect a;

@property(nonatomic, readonly) cpVect b;

@property(nonatomic, readonly) cpVect normal;

@property(nonatomic, readonly) cpFloat radius;

@end


@interface ChipmunkPolyShape : ChipmunkShape

+ (id)polyWithBody:(ChipmunkBody *)body count:(int)count verts:(const cpVect *)verts transform:(cpTransform)transform radius:(cpFloat)radius;

+ (id)boxWithBody:(ChipmunkBody *)body width:(cpFloat)width height:(cpFloat)height radius:(cpFloat)radius;

+ (id)boxWithBody:(ChipmunkBody *)body bb:(cpBB)bb radius:(cpFloat)radius;

- (id)initWithBody:(ChipmunkBody *)body count:(int)count verts:(const cpVect *)verts transform:(cpTransform)transform radius:(cpFloat)radius;

- (id)initBoxWithBody:(ChipmunkBody *)body width:(cpFloat)width height:(cpFloat)height radius:(cpFloat)radius;

- (id)initBoxWithBody:(ChipmunkBody *)body bb:(cpBB)bb radius:(cpFloat)radius;

@property(nonatomic, readonly) int count;

@property(nonatomic, readonly) cpFloat radius;

- (cpVect)getVertex:(int)index;

@end