#define TURF_REMOVE_CROWBAR     1
#define TURF_REMOVE_SCREWDRIVER 2
#define TURF_REMOVE_SHOVEL      4
#define TURF_REMOVE_WRENCH      8
#define TURF_CAN_BREAK          16
#define TURF_CAN_BURN           32
#define TURF_HAS_EDGES          64
#define TURF_HAS_CORNERS        128
#define TURF_IS_FRAGILE         256
#define TURF_ACID_IMMUNE        512
#define TURF_UNSHIELDABLE       1024
#define TURF_CAN_DIG_SHOVEL		2048
// The 0x800000 is blocked by INITIALIZED, do NOT use it!

//Used for floor/wall smoothing
#define SMOOTH_NONE 0	//Smooth only with itself
#define SMOOTH_ALL 1	//Smooth with all of type
#define SMOOTH_WHITELIST 2	//Smooth with a whitelist of subtypes
#define SMOOTH_BLACKLIST 3 //Smooth with all but a blacklist of subtypes
#define SMOOTH_GREYLIST 4 // Use a whitelist and a blacklist at the same time. atom smoothing only

#define isCardinal(x)			(x == NORTH || x == SOUTH || x == EAST || x == WEST)
#define isDiagonal(x)			(x == NORTHEAST || x == SOUTHEAST || x == NORTHWEST || x == SOUTHWEST)

#define IS_OPAQUE_TURF(turf) (turf.directional_opacity == ALL_CARDINALS)
#define IS_OPAQUE_TURF_DIR(turf, dir) (turf.directional_opacity & dir)
#define FOOTSTEP_SPRITE_AMT 2

// Used to designate if a turf (or its area) should initialize as outdoors or not.
#define OUTDOORS_YES		1	// This being 1 helps with backwards compatibility.
#define OUTDOORS_NO			0	// Ditto.
#define OUTDOORS_AREA		-1	// If a turf has this, it will defer to the area's settings on init.
								// Note that after init, it will be either YES or NO.

//supposedly the fastest way to do this according to https://gist.github.com/Giacom/be635398926bb463b42a
///Returns a list of turf in a square
#define RANGE_TURFS(RADIUS, CENTER) \
	RECT_TURFS(RADIUS, RADIUS, CENTER)

#define RECT_TURFS(H_RADIUS, V_RADIUS, CENTER) \
	block( \
	(CENTER).x - (H_RADIUS), (CENTER).y - (V_RADIUS), (CENTER).z, \
	(CENTER).x + (H_RADIUS), (CENTER).y + (V_RADIUS), (CENTER).z \
	)

// Wet turfs have different slipping intensities
#define TURFSLIP_DRY 0
#define TURFSLIP_WET 1
#define TURFSLIP_LUBE 2
#define TURFSLIP_ICE 3

///Returns all turfs in a zlevel
#define Z_TURFS(ZLEVEL) block(1, 1, ZLEVEL, world.maxx, world.maxy, ZLEVEL)

/// Digging loot with a shovel
#define TURF_DIG_LOOT_ENDLESS 0
#define TURF_DIG_LOOT_EXHAUSTED 100