59 lines
3 KiB
C
59 lines
3 KiB
C
/* 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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/// @defgroup cpDampedRotarySpring cpDampedRotarySpring
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/// @{
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/// Check if a constraint is a damped rotary springs.
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CP_EXPORT cpBool cpConstraintIsDampedRotarySpring(const cpConstraint *constraint);
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/// Function type used for damped rotary spring force callbacks.
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typedef cpFloat (*cpDampedRotarySpringTorqueFunc)(struct cpConstraint *spring, cpFloat relativeAngle);
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/// Allocate a damped rotary spring.
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CP_EXPORT cpDampedRotarySpring* cpDampedRotarySpringAlloc(void);
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/// Initialize a damped rotary spring.
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CP_EXPORT cpDampedRotarySpring* cpDampedRotarySpringInit(cpDampedRotarySpring *joint, cpBody *a, cpBody *b, cpFloat restAngle, cpFloat stiffness, cpFloat damping);
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/// Allocate and initialize a damped rotary spring.
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CP_EXPORT cpConstraint* cpDampedRotarySpringNew(cpBody *a, cpBody *b, cpFloat restAngle, cpFloat stiffness, cpFloat damping);
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/// Get the rest length of the spring.
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CP_EXPORT cpFloat cpDampedRotarySpringGetRestAngle(const cpConstraint *constraint);
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/// Set the rest length of the spring.
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CP_EXPORT void cpDampedRotarySpringSetRestAngle(cpConstraint *constraint, cpFloat restAngle);
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/// Get the stiffness of the spring in force/distance.
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CP_EXPORT cpFloat cpDampedRotarySpringGetStiffness(const cpConstraint *constraint);
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/// Set the stiffness of the spring in force/distance.
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CP_EXPORT void cpDampedRotarySpringSetStiffness(cpConstraint *constraint, cpFloat stiffness);
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/// Get the damping of the spring.
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CP_EXPORT cpFloat cpDampedRotarySpringGetDamping(const cpConstraint *constraint);
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/// Set the damping of the spring.
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CP_EXPORT void cpDampedRotarySpringSetDamping(cpConstraint *constraint, cpFloat damping);
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/// Get the damping of the spring.
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CP_EXPORT cpDampedRotarySpringTorqueFunc cpDampedRotarySpringGetSpringTorqueFunc(const cpConstraint *constraint);
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/// Set the damping of the spring.
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CP_EXPORT void cpDampedRotarySpringSetSpringTorqueFunc(cpConstraint *constraint, cpDampedRotarySpringTorqueFunc springTorqueFunc);
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/// @}
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