diff options
Diffstat (limited to 'libraries/ode-0.9/GIMPACT/src/gim_math.cpp')
| -rw-r--r-- | libraries/ode-0.9/GIMPACT/src/gim_math.cpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libraries/ode-0.9/GIMPACT/src/gim_math.cpp b/libraries/ode-0.9/GIMPACT/src/gim_math.cpp new file mode 100644 index 0000000..18efb2c --- /dev/null +++ b/libraries/ode-0.9/GIMPACT/src/gim_math.cpp | |||
| @@ -0,0 +1,60 @@ | |||
| 1 | /* | ||
| 2 | ----------------------------------------------------------------------------- | ||
| 3 | This source file is part of GIMPACT Library. | ||
| 4 | |||
| 5 | For the latest info, see http://gimpact.sourceforge.net/ | ||
| 6 | |||
| 7 | Copyright (c) 2006 Francisco Leon. C.C. 80087371. | ||
| 8 | email: projectileman@yahoo.com | ||
| 9 | |||
| 10 | This library is free software; you can redistribute it and/or | ||
| 11 | modify it under the terms of EITHER: | ||
| 12 | (1) The GNU Lesser General Public License as published by the Free | ||
| 13 | Software Foundation; either version 2.1 of the License, or (at | ||
| 14 | your option) any later version. The text of the GNU Lesser | ||
| 15 | General Public License is included with this library in the | ||
| 16 | file GIMPACT-LICENSE-LGPL.TXT. | ||
| 17 | (2) The BSD-style license that is included with this library in | ||
| 18 | the file GIMPACT-LICENSE-BSD.TXT. | ||
| 19 | |||
| 20 | This library is distributed in the hope that it will be useful, | ||
| 21 | but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 22 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files | ||
| 23 | GIMPACT-LICENSE-LGPL.TXT and GIMPACT-LICENSE-BSD.TXT for more details. | ||
| 24 | |||
| 25 | ----------------------------------------------------------------------------- | ||
| 26 | */ | ||
| 27 | |||
| 28 | |||
| 29 | #include "GIMPACT/gim_math.h" | ||
| 30 | #include "stdlib.h" | ||
| 31 | #include "time.h" | ||
| 32 | |||
| 33 | |||
| 34 | GREAL gim_inv_sqrt(GREAL f) | ||
| 35 | { | ||
| 36 | GREAL r; | ||
| 37 | GIM_INV_SQRT(f,r); | ||
| 38 | return r; | ||
| 39 | } | ||
| 40 | |||
| 41 | GREAL gim_sqrt(GREAL f) | ||
| 42 | { | ||
| 43 | GREAL r; | ||
| 44 | GIM_SQRT(f,r); | ||
| 45 | return r; | ||
| 46 | } | ||
| 47 | |||
| 48 | //!Initializes mathematical functions | ||
| 49 | void gim_init_math() | ||
| 50 | { | ||
| 51 | srand( static_cast< unsigned int >( time( 0 ) ) ); | ||
| 52 | } | ||
| 53 | |||
| 54 | //! Generates an unit random | ||
| 55 | GREAL gim_unit_random() | ||
| 56 | { | ||
| 57 | GREAL rn = static_cast< GREAL >( rand() ); | ||
| 58 | rn/=(GREAL)RAND_MAX; | ||
| 59 | return rn; | ||
| 60 | } | ||