67 lines
2.9 KiB
C
67 lines
2.9 KiB
C
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/* Copyright (c) 2013 Scott Lembcke and Howling Moon Software
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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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/* This header defines a number of "unsafe" operations on Chipmunk objects.
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* In this case "unsafe" is referring to operations which may reduce the
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* physical accuracy or numerical stability of the simulation, but will not
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* cause crashes.
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*
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* The prime example is mutating collision shapes. Chipmunk does not support
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* this directly. Mutating shapes using this API will caused objects in contact
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* to be pushed apart using Chipmunk's overlap solver, but not using real
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* persistent velocities. Probably not what you meant, but perhaps close enough.
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*/
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/// @defgroup unsafe Chipmunk Unsafe Shape Operations
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/// These functions are used for mutating collision shapes.
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/// Chipmunk does not have any way to get velocity information on changing shapes,
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/// so the results will be unrealistic. You must explicity include the chipmunk_unsafe.h header to use them.
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/// @{
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#ifndef CHIPMUNK_UNSAFE_H
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#define CHIPMUNK_UNSAFE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/// Set the radius of a circle shape.
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CP_EXPORT void cpCircleShapeSetRadius(cpShape *shape, cpFloat radius);
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/// Set the offset of a circle shape.
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CP_EXPORT void cpCircleShapeSetOffset(cpShape *shape, cpVect offset);
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/// Set the endpoints of a segment shape.
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CP_EXPORT void cpSegmentShapeSetEndpoints(cpShape *shape, cpVect a, cpVect b);
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/// Set the radius of a segment shape.
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CP_EXPORT void cpSegmentShapeSetRadius(cpShape *shape, cpFloat radius);
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/// Set the vertexes of a poly shape.
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CP_EXPORT void cpPolyShapeSetVerts(cpShape *shape, int count, cpVect *verts, cpTransform transform);
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CP_EXPORT void cpPolyShapeSetVertsRaw(cpShape *shape, int count, cpVect *verts);
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/// Set the radius of a poly shape.
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CP_EXPORT void cpPolyShapeSetRadius(cpShape *shape, cpFloat radius);
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#ifdef __cplusplus
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}
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#endif
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#endif
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/// @}
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