ref: 7e78c1171d1206ca2f31cc67c55cc715eeb44ee5
dir: /constants/sprite_data_constants.asm/
; sprite facing directions const_def 0, $04 const SPRITE_FACING_DOWN ; $00 const SPRITE_FACING_UP ; $04 const SPRITE_FACING_LEFT ; $08 const SPRITE_FACING_RIGHT ; $0C const_def 0, $40 const NPC_MOVEMENT_DOWN ; $00 const NPC_MOVEMENT_UP ; $40 const NPC_MOVEMENT_LEFT ; $80 const NPC_MOVEMENT_RIGHT ; $C0 NPC_CHANGE_FACING EQU $E0 ; player direction constants const_def const PLAYER_DIR_BIT_RIGHT ; 0 const PLAYER_DIR_BIT_LEFT ; 1 const PLAYER_DIR_BIT_DOWN ; 2 const PLAYER_DIR_BIT_UP ; 3 PLAYER_DIR_RIGHT EQU 1 << PLAYER_DIR_BIT_RIGHT PLAYER_DIR_LEFT EQU 1 << PLAYER_DIR_BIT_LEFT PLAYER_DIR_DOWN EQU 1 << PLAYER_DIR_BIT_DOWN PLAYER_DIR_UP EQU 1 << PLAYER_DIR_BIT_UP