RetroFlat Direction API

Macros and constants for definition cardinal directions in screen and world space. More...

Collaboration diagram for RetroFlat Direction API:

Macros
#define	RETROFLAT_DIR4_NONE   (-1)
#define	RETROFLAT_DIR4_NORTH   0
#define	RETROFLAT_DIR4_EAST   1
#define	RETROFLAT_DIR4_SOUTH   2
#define	RETROFLAT_DIR4_WEST   3
#define	RETROFLAT_DIR8_NONE   (-1)
#define	RETROFLAT_DIR8_NORTH   0
#define	RETROFLAT_DIR8_EAST   2
#define	RETROFLAT_DIR8_SOUTH   4
#define	RETROFLAT_DIR8_WEST   6
#define	retroflat_dir4_rotate_cw(dir)
#define	retroflat_dir8_reverse(dir)
#define	retroflat_dir8_bounce(dir)

Typedefs
typedef int8_t	retroflat_dir4_t
typedef int8_t	retroflat_dir8_t

Variables
MAUG_CONST int16_t SEG_MCONST	gc_retroflat_offsets8_x [8]
MAUG_CONST int16_t SEG_MCONST	gc_retroflat_offsets8_y [8]
MAUG_CONST int16_t SEG_MCONST	gc_retroflat_offsets4_x [4]
MAUG_CONST int16_t SEG_MCONST	gc_retroflat_offsets4_y [4]

Detailed Description

Macros and constants for definition cardinal directions in screen and world space.

Macro Definition Documentation

retroflat_dir4_rotate_cw

#define retroflat_dir4_rotate_cw

(

dir

)

Value:

((dir + 1) % 4)

retroflat_dir8_bounce

#define retroflat_dir8_bounce

(

dir

)

Value:

((dir + 2) % 8)

retroflat_dir8_reverse

#define retroflat_dir8_reverse

(

dir

)

Value:

((dir + 4) % 8)