mirror of https://github.com/axmolengine/axmol.git
82 lines
3.5 KiB
C
82 lines
3.5 KiB
C
/* Copyright (c) 2007 Scott Lembcke
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/// @defgroup cpPolyShape cpPolyShape
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/// @{
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/// @private
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typedef struct cpSplittingPlane {
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cpVect n;
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cpFloat d;
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} cpSplittingPlane;
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/// @private
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typedef struct cpPolyShape {
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cpShape shape;
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int numVerts;
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cpVect *verts, *tVerts;
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cpSplittingPlane *planes, *tPlanes;
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cpFloat r;
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} cpPolyShape;
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/// Allocate a polygon shape.
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cpPolyShape* cpPolyShapeAlloc(void);
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/// Initialize a polygon shape.
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/// A convex hull will be created from the vertexes.
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cpPolyShape* cpPolyShapeInit(cpPolyShape *poly, cpBody *body, int numVerts, const cpVect *verts, cpVect offset);
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/// Initialize a polygon shape.
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/// A convex hull will be created from the vertexes.
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cpPolyShape* cpPolyShapeInit2(cpPolyShape *poly, cpBody *body, int numVerts, const cpVect *verts, cpVect offset, cpFloat radius);
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/// Allocate and initialize a polygon shape.
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/// A convex hull will be created from the vertexes.
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cpShape* cpPolyShapeNew(cpBody *body, int numVerts, const cpVect *verts, cpVect offset);
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/// Allocate and initialize a polygon shape.
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/// A convex hull will be created from the vertexes.
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cpShape* cpPolyShapeNew2(cpBody *body, int numVerts, const cpVect *verts, cpVect offset, cpFloat radius);
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/// Initialize a box shaped polygon shape.
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cpPolyShape* cpBoxShapeInit(cpPolyShape *poly, cpBody *body, cpFloat width, cpFloat height);
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/// Initialize an offset box shaped polygon shape.
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cpPolyShape* cpBoxShapeInit2(cpPolyShape *poly, cpBody *body, cpBB box);
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/// Initialize an offset box shaped polygon shape.
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cpPolyShape* cpBoxShapeInit3(cpPolyShape *poly, cpBody *body, cpBB box, cpFloat radius);
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/// Allocate and initialize a box shaped polygon shape.
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cpShape* cpBoxShapeNew(cpBody *body, cpFloat width, cpFloat height);
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/// Allocate and initialize an offset box shaped polygon shape.
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cpShape* cpBoxShapeNew2(cpBody *body, cpBB box);
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/// Allocate and initialize an offset box shaped polygon shape.
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cpShape* cpBoxShapeNew3(cpBody *body, cpBB box, cpFloat radius);
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/// Check that a set of vertexes is convex and has a clockwise winding.
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/// NOTE: Due to floating point precision issues, hulls created with cpQuickHull() are not guaranteed to validate!
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cpBool cpPolyValidate(const cpVect *verts, const int numVerts);
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/// Get the number of verts in a polygon shape.
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int cpPolyShapeGetNumVerts(const cpShape *shape);
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/// Get the @c ith vertex of a polygon shape.
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cpVect cpPolyShapeGetVert(const cpShape *shape, int idx);
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/// Get the radius of a polygon shape.
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cpFloat cpPolyShapeGetRadius(const cpShape *shape);
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/// @}
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