af6bf8ddc8
See also https://youtu.be/eppOjTfx5Jg for a first test, and this modified URDF how to add sounds: https://github.com/bulletphysics/bullet3/blob/master/data/plane_with_collision_audio.urdf Add the --audio flag to enable sound in pybullet/Bullet-C-API
60 lines
1.2 KiB
C++
60 lines
1.2 KiB
C++
#ifndef B3_HASH_STRING_H
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#define B3_HASH_STRING_H
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#include <string>
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///very basic hashable string implementation, compatible with b3HashMap
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struct b3HashString
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{
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std::string m_string;
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unsigned int m_hash;
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B3_FORCE_INLINE unsigned int getHash()const
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{
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return m_hash;
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}
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b3HashString(const char* name)
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:m_string(name)
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{
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/* magic numbers from http://www.isthe.com/chongo/tech/comp/fnv/ */
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static const unsigned int InitialFNV = 2166136261u;
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static const unsigned int FNVMultiple = 16777619u;
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/* Fowler / Noll / Vo (FNV) Hash */
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unsigned int hash = InitialFNV;
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for(int i = 0; m_string[i]; i++)
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{
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hash = hash ^ (m_string[i]); /* xor the low 8 bits */
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hash = hash * FNVMultiple; /* multiply by the magic number */
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}
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m_hash = hash;
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}
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int portableStringCompare(const char* src, const char* dst) const
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{
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int ret = 0 ;
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while( ! (ret = *(unsigned char *)src - *(unsigned char *)dst) && *dst)
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++src, ++dst;
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if ( ret < 0 )
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ret = -1 ;
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else if ( ret > 0 )
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ret = 1 ;
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return( ret );
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}
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bool equals(const b3HashString& other) const
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{
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return (m_string == other.m_string);
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}
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};
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#endif //B3_HASH_STRING_H
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