cpPolyline.h

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

// Polylines are just arrays of vertexes.
// They are looped if the first vertex is equal to the last.
// cpPolyline structs are intended to be passed by value and destroyed when you are done with them.
typedef struct cpPolyline {
  int count, capacity;
  cpVect verts[];
} cpPolyline;

CP_EXPORT void cpPolylineFree(cpPolyline *line);

CP_EXPORT cpBool cpPolylineIsClosed(cpPolyline *line);

CP_EXPORT cpPolyline *cpPolylineSimplifyCurves(cpPolyline *line, cpFloat tol);

CP_EXPORT cpPolyline *cpPolylineSimplifyVertexes(cpPolyline *line, cpFloat tol);

CP_EXPORT cpPolyline *cpPolylineToConvexHull(cpPolyline *line, cpFloat tol);


typedef struct cpPolylineSet {
  int count, capacity;
  cpPolyline **lines;
} cpPolylineSet;

CP_EXPORT cpPolylineSet *cpPolylineSetAlloc(void);

CP_EXPORT cpPolylineSet *cpPolylineSetInit(cpPolylineSet *set);

CP_EXPORT cpPolylineSet *cpPolylineSetNew(void);

CP_EXPORT void cpPolylineSetDestroy(cpPolylineSet *set, cpBool freePolylines);

CP_EXPORT 
void cpPolylineSetFree(cpPolylineSet *set, cpBool freePolylines);

CP_EXPORT void cpPolylineSetCollectSegment(cpVect v0, cpVect v1, cpPolylineSet *lines);

CP_EXPORT cpPolylineSet *cpPolylineConvexDecomposition(cpPolyline *line, cpFloat tol);

#define cpPolylineConvexDecomposition_BETA cpPolylineConvexDecomposition