ref: 7110aba73616e4f84b933a0db1ff96c4c22a9d6f
dir: heretic/m_bams.h
//************************************************************************** //** //** m_bams.h //** //************************************************************************** #ifndef __MY_BAMS_MATH_H__ #define __MY_BAMS_MATH_H__ typedef unsigned short binangle; /* Some predefined angles */ #define BANG_0 0 /* To the east. */ #define BANG_45 0x2000 /* To the northeast. */ #define BANG_90 0x4000 /* To the north. */ #define BANG_135 0x6000 /* To the northwest. */ #define BANG_180 0x8000 /* To the west. */ #define BANG_225 0xa000 /* To the southwest. */ #define BANG_270 0xc000 /* To the south. */ #define BANG_315 0xe000 /* To the southeast. */ #define BANG_360 0x10000 /* The same as angle 0. */ #define BANG_MAX 0xffff /* The largest possible angle. */ /* Compass directions, for convenience. */ #define BANG_EAST BANG_0 #define BANG_NORTHEAST BANG_45 #define BANG_NORTH BANG_90 #define BANG_NORTHWEST BANG_135 #define BANG_WEST BANG_180 #define BANG_SOUTHWEST BANG_225 #define BANG_SOUTH BANG_270 #define BANG_SOUTHEAST BANG_315 #define BAMS_PI 3.14159265359 #define RAD2BANG(x) ((binangle)((x)/BAMS_PI*BANG_180)) #define BANG2RAD(x) ((float)((x)/(float)BANG_180*BAMS_PI)) void bamsInit(void); /* Fill in the tables */ binangle bamsAtan2(int y,int x); #endif /* __MY_BAMS_MATH_H__ */