1 /* Copyright (c) 2013 Scott Lembcke and Howling Moon Software
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to deal
5 * in the Software without restriction, including without limitation the rights
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7 * copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
10 * The above copyright notice and this permission notice shall be included in
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13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 /// @defgroup cpSimpleMotor cpSimpleMotor
25 /// Opaque struct type for damped rotary springs.
26 typedef struct cpSimpleMotor cpSimpleMotor;
28 /// Check if a constraint is a damped rotary springs.
29 CP_EXPORT cpBool cpConstraintIsSimpleMotor(const cpConstraint *constraint);
31 /// Allocate a simple motor.
32 CP_EXPORT cpSimpleMotor* cpSimpleMotorAlloc(void);
33 /// initialize a simple motor.
34 CP_EXPORT cpSimpleMotor* cpSimpleMotorInit(cpSimpleMotor *joint, cpBody *a, cpBody *b, cpFloat rate);
35 /// Allocate and initialize a simple motor.
36 CP_EXPORT cpConstraint* cpSimpleMotorNew(cpBody *a, cpBody *b, cpFloat rate);
38 /// Get the rate of the motor.
39 CP_EXPORT cpFloat cpSimpleMotorGetRate(const cpConstraint *constraint);
40 /// Set the rate of the motor.
41 CP_EXPORT void cpSimpleMotorSetRate(cpConstraint *constraint, cpFloat rate);