/*
	These defines are specific to the atom/flags_1 bitmask
*/
#define ALL (~0) //For convenience.
#define NONE 0

//for convenience
#define ENABLE_BITFIELD(variable, flag) (variable |= (flag))
#define DISABLE_BITFIELD(variable, flag) (variable &= ~(flag))
#define CHECK_BITFIELD(variable, flag) (variable & (flag))
#define TOGGLE_BITFIELD(variable, flag) (variable ^= (flag))


//check if all bitflags specified are present
#define CHECK_MULTIPLE_BITFIELDS(flagvar, flags) (((flagvar) & (flags)) == (flags))

GLOBAL_LIST_INIT(bitflags, list(1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768))

// for /datum/var/datum_flags
#define DF_USE_TAG		(1<<0)
#define DF_VAR_EDITED	(1<<1)
#define DF_ISPROCESSING (1<<2)

//FLAGS BITMASK

/// This flag is what recursive_hear_check() uses to determine wether to add an item to the hearer list or not.
#define HEAR_1						(1<<3)
/// Projectiels will check ricochet on things impacted that have this.
#define CHECK_RICOCHET_1			(1<<4)
/// conducts electricity (metal etc.)
#define CONDUCT_1					(1<<5)
/// For machines and structures that should not break into parts, eg, holodeck stuff
#define NODECONSTRUCT_1				(1<<7)
/// atom queued to SSoverlay
#define OVERLAY_QUEUED_1			(1<<8)
/// item has priority to check when entering or leaving
#define ON_BORDER_1					(1<<9)
/// Prevent clicking things below it on the same turf eg. doors/ fulltile windows
#define PREVENT_CLICK_UNDER_1		(1<<11)
#define HOLOGRAM_1					(1<<12)
///Whether /atom/Initialize() has already run for the object
#define INITIALIZED_1				(1<<14)
/// was this spawned by an admin? used for stat tracking stuff.
#define ADMIN_SPAWNED_1			    (1<<15)
/// should not get harmed if this gets caught by an explosion?
#define PREVENT_CONTENTS_EXPLOSION_1 (1<<16)

//turf-only flags
#define NOJAUNT_1					(1<<0)
#define UNUSED_RESERVATION_TURF_1	(1<<1)
/// If a turf can be made dirty at roundstart. This is also used in areas.
#define CAN_BE_DIRTY_1				(1<<2)
/// If blood cultists can draw runes or build structures on this turf
#define CULT_PERMITTED_1			(1<<3)
/// Blocks lava rivers being generated on the turf
#define NO_LAVA_GEN_1				(1<<6)
/// Blocks ruins spawning on the turf
#define NO_RUINS_1					(1<<10)

/*
	These defines are used specifically with the atom/pass_flags bitmask
	the atom/checkpass() proc uses them (tables will call movable atom checkpass(PASSTABLE) for example)
*/
//flags for pass_flags
#define PASSTABLE		(1<<0)
#define PASSGLASS		(1<<1)
#define PASSGRILLE		(1<<2)
#define PASSBLOB		(1<<3)
#define PASSMOB			(1<<4)
#define PASSCLOSEDTURF	(1<<5)
#define LETPASSTHROW	(1<<6)

//Movement Types
#define GROUND			(1<<0)
#define FLYING			(1<<1)
#define VENTCRAWLING	(1<<2)
#define FLOATING		(1<<3)
/// When moving, will Bump()/Cross()/Uncross() everything, but won't be stopped.
#define UNSTOPPABLE		(1<<4)

//Fire and Acid stuff, for resistance_flags
#define LAVA_PROOF		(1<<0)
/// 100% immune to fire damage (but not necessarily to lava or heat)
#define FIRE_PROOF		(1<<1)
#define FLAMMABLE		(1<<2)
#define ON_FIRE			(1<<3)
/// acid can't even appear on it, let alone melt it.
#define UNACIDABLE		(1<<4)
/// acid stuck on it doesn't melt it.
#define ACID_PROOF		(1<<5)
/// doesn't take damage
#define INDESTRUCTIBLE	(1<<6)
/// can't be frozen
#define FREEZE_PROOF	(1<<7)

//tesla_zap
#define TESLA_MACHINE_EXPLOSIVE		(1<<0)
#define TESLA_ALLOW_DUPLICATES		(1<<1)
#define TESLA_OBJ_DAMAGE			(1<<2)
#define TESLA_MOB_DAMAGE			(1<<3)
#define TESLA_MOB_STUN				(1<<4)

#define TESLA_DEFAULT_FLAGS ALL
#define TESLA_FUSION_FLAGS TESLA_OBJ_DAMAGE | TESLA_MOB_DAMAGE | TESLA_MOB_STUN

//EMP protection
#define EMP_PROTECT_SELF (1<<0)
#define EMP_PROTECT_CONTENTS (1<<1)
#define EMP_PROTECT_WIRES (1<<2)

//Mob mobility var flags
/// can move
#define MOBILITY_MOVE			(1<<0)
/// can, and is, standing up
#define MOBILITY_STAND			(1<<1)
/// can pickup items
#define MOBILITY_PICKUP			(1<<2)
/// can hold and use items
#define MOBILITY_USE			(1<<3)
/// can use interfaces like machinery
#define MOBILITY_UI				(1<<4)
/// can use storage item
#define MOBILITY_STORAGE		(1<<5)
/// can pull things
#define MOBILITY_PULL			(1<<6)

#define MOBILITY_FLAGS_DEFAULT (MOBILITY_MOVE | MOBILITY_STAND | MOBILITY_PICKUP | MOBILITY_USE | MOBILITY_UI | MOBILITY_STORAGE | MOBILITY_PULL)
#define MOBILITY_FLAGS_INTERACTION (MOBILITY_USE | MOBILITY_PICKUP | MOBILITY_UI | MOBILITY_STORAGE)

// radiation
#define RAD_PROTECT_CONTENTS (1<<0)
#define RAD_NO_CONTAMINATE (1<<1)

//alternate appearance flags
#define AA_TARGET_SEE_APPEARANCE (1<<0)
#define AA_MATCH_TARGET_OVERLAYS (1<<1)