ref: 8c83ebe9663ef317c8bd3b74339047bda29be1a4
dir: /constants/map_data_constants.asm/
; width of east/west connections ; height of north/south connections MAP_BORDER EQU 3 ; connection directions const_def shift_const EAST ; 1 shift_const WEST ; 2 shift_const SOUTH ; 4 shift_const NORTH ; 8 ; tileset environments const_def const INDOOR ; 0 const CAVE ; 1 const OUTDOOR ; 2