2020-06-23 15:53:23 +08:00
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/************************/
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2020-06-23 15:27:59 +08:00
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/* math2.h */
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/************************/
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#ifndef _MATH2_H_
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#define _MATH2_H_
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#define PAI 3.1415926535897932384626433832795
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#define ABS(a) ( ( (a)<0 ) ? -(a) : (a) )
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2020-06-23 15:53:23 +08:00
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/* ?冉 ? ?? ??? ??? ?*******************************************************/
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2020-06-23 15:27:59 +08:00
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void AdjustDir( float *dir );
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void AdjustDir( int *dir );
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2020-06-23 15:53:23 +08:00
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/* ????????????? ***********************************************************/
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2020-06-23 15:27:59 +08:00
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float SinT( float theat );
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2020-06-23 15:53:23 +08:00
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/* ????????????? ***********************************************************/
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2020-06-23 15:27:59 +08:00
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float CosT( float theat );
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/* ????????? *********************************************************************/
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float Atan( float x, float y );
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2020-06-23 15:53:23 +08:00
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/* ?????伶 *************************************************************************/
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2020-06-23 15:27:59 +08:00
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int Rnd( int min, int max );
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void initRand2( void );
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int rand2( void );
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2020-06-23 15:53:23 +08:00
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/* ?????????? *******************************************************************/
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2020-06-23 15:27:59 +08:00
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float pointLen( float x1, float y1, float x2, float y2 );
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float pointLen2( float x1, float y1, float x2, float y2 );
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#endif
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