cpPolyShape.h

/* Copyright (c) 2007 Scott Lembcke
 * 
 * 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.
 */


typedef struct cpSplittingPlane {
  cpVect n;
  cpFloat d;
} cpSplittingPlane;

typedef struct cpPolyShape {
  cpShape shape;
  
  int numVerts;
  cpVect *verts, *tVerts;
  cpSplittingPlane *planes, *tPlanes;
  
  cpFloat r;
} cpPolyShape;

cpPolyShape* cpPolyShapeAlloc(void);
cpPolyShape* cpPolyShapeInit(cpPolyShape *poly, cpBody *body, int numVerts, const cpVect *verts, cpVect offset);
cpPolyShape* cpPolyShapeInit2(cpPolyShape *poly, cpBody *body, int numVerts, const cpVect *verts, cpVect offset, cpFloat radius);
cpShape* cpPolyShapeNew(cpBody *body, int numVerts, const cpVect *verts, cpVect offset);
cpShape* cpPolyShapeNew2(cpBody *body, int numVerts, const cpVect *verts, cpVect offset, cpFloat radius);

cpPolyShape* cpBoxShapeInit(cpPolyShape *poly, cpBody *body, cpFloat width, cpFloat height);
cpPolyShape* cpBoxShapeInit2(cpPolyShape *poly, cpBody *body, cpBB box);
cpPolyShape* cpBoxShapeInit3(cpPolyShape *poly, cpBody *body, cpBB box, cpFloat radius);
cpShape* cpBoxShapeNew(cpBody *body, cpFloat width, cpFloat height);
cpShape* cpBoxShapeNew2(cpBody *body, cpBB box);
cpShape* cpBoxShapeNew3(cpBody *body, cpBB box, cpFloat radius);

cpBool cpPolyValidate(const cpVect *verts, const int numVerts);

int cpPolyShapeGetNumVerts(const cpShape *shape);
cpVect cpPolyShapeGetVert(const cpShape *shape, int idx);
cpFloat cpPolyShapeGetRadius(const cpShape *shape);