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35 lines
1.3 KiB
C++
35 lines
1.3 KiB
C++
#ifndef ID_RANDOM_UTIL_HPP_
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#define ID_RANDOM_UTIL_HPP_
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#include "BulletInverseDynamics/IDConfig.hpp"
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namespace btInverseDynamics {
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/// seed random number generator
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void randomInit();
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/// Generate (not quite) uniformly distributed random integers in [low, high]
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/// Note: this is a low-quality implementation using only rand(), as
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/// C++11 <random> is not supported in bullet.
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/// The results will *not* be perfectly uniform.
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/// \param low is the lower bound (inclusive)
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/// \param high is the lower bound (inclusive)
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/// \return a random number within [\param low, \param high]
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int randomInt(int low, int high);
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/// Generate a (not quite) uniformly distributed random floats in [low, high]
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/// Note: this is a low-quality implementation using only rand(), as
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/// C++11 <random> is not supported in bullet.
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/// The results will *not* be perfectly uniform.
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/// \param low is the lower bound (inclusive)
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/// \param high is the lower bound (inclusive)
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/// \return a random number within [\param low, \param high]
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float randomFloat(float low, float high);
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/// generate a random valid mass value
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/// \returns random mass
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float randomMass();
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/// generate a random valid vector of principal moments of inertia
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vec3 randomInertiaPrincipal();
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/// generate a random valid moment of inertia matrix
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mat33 randomInertiaMatrix();
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/// generate a random unit vector
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vec3 randomAxis();
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}
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#endif
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