unit_hud_interface

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Structure and fields

Field Type Comments

anchor enum

Option	Value	Comments
top left	`0x0`
top right	`0x1`
bottom left	`0x2`
bottom right	`0x3`
center	`0x4`
top center	`0x5`	H1A only
bottom center	`0x6`	H1A only
left center	`0x7`	H1A only
right center	`0x8`	H1A only

hud background anchor offset Point2DInt

Field	Type	Comments
x	`int16`
y	`int16`

hud background width scale

float

Default: 1

hud background height scale

float

Default: 1

hud background scaling flags bitfield

Flag	Mask	Comments
don't scale offset	`0x1`
don't scale size	`0x2`
use high res scale	`0x4`

hud background interface bitmap TagDependency: bitmap

hud background default color ColorARGBInt

RGB Color with alpha, with 8-bit color depth per channel (0-255)

Field	Type	Comments
alpha	`uint8`
red	`uint8`
green	`uint8`
blue	`uint8`

hud background flashing color ColorARGBInt^?

hud background flash period float

hud background flash delay float

hud background number of flashes uint16

hud background flash flags bitfield

Flag	Mask	Comments
reverse default flashing colors	`0x1`

hud background flash length float

hud background disabled color ColorARGBInt^?

hud background sequence index uint16

hud background multitex overlay Block

Field Type Comments

type int16

framebuffer blend function enum

Option	Value	Comments
alpha blend	`0x0`
multiply	`0x1`
double multiply	`0x2`
add	`0x3`
subtract	`0x4`
component min	`0x5`
component max	`0x6`
alpha multiply add	`0x7`

primary anchor enum^?

secondary anchor enum

Option	Value	Comments
texture	`0x0`
screen	`0x1`

tertiary anchor enum^?

zero to one blend function enum

Option	Value	Comments
add	`0x0`
subtract	`0x1`
multiply	`0x2`
multiply2x	`0x3`
dot	`0x4`

one to two blend function enum^?

primary scale Point2D

Field	Type	Comments
x	`float`
y	`float`

secondary scale Point2D^?

tertiary scale Point2D^?

primary offset Point2D^?

secondary offset Point2D^?

tertiary offset Point2D^?

primary TagDependency: bitmap

secondary TagDependency: bitmap

tertiary TagDependency: bitmap

primary wrap mode enum

Option	Value	Comments
clamp	`0x0`
wrap	`0x1`

secondary wrap mode enum^?

tertiary wrap mode enum^?

effectors

Block

HEK max count: 30

Field Type Comments

destination type enum

Option	Value	Comments
tint 0 1	`0x0`
horizontal offset	`0x1`
vertical offset	`0x2`
fade 0 1	`0x3`

destination enum

Option	Value	Comments
geometry offset	`0x0`
primary map	`0x1`
secondary map	`0x2`
tertiary map	`0x3`

source enum

Option	Value	Comments
player pitch	`0x0`
player pitch tangent	`0x1`
player yaw	`0x2`
weapon ammo total	`0x3`
weapon ammo loaded	`0x4`
weapon heat	`0x5`
explicit uses low bound	`0x6`
weapon zoom level	`0x7`

in bounds

Bounds

Unit: source units

Field	Type	Comments
min	`float`
max	`float`

out bounds

Bounds^?

Unit: pixels

tint color lower bound ColorRGB

tint color upper bound ColorRGB

periodic function enum

Option	Value	Comments
one	`0x0`
zero	`0x1`
cosine	`0x2`
cosine variable period	`0x3`
diagonal wave	`0x4`
diagonal wave variable period	`0x5`
slide	`0x6`
slide variable period	`0x7`
noise	`0x8`
jitter	`0x9`
wander	`0xA`
spark	`0xB`

function period

float

Unit: seconds

function phase

float

Unit: seconds

shield panel background anchor offset Point2DInt^?

shield panel background width scale

float

Default: 1

shield panel background height scale

float

Default: 1

shield panel background scaling flags bitfield^?

shield panel background interface bitmap TagDependency: bitmap

shield panel background default color ColorARGBInt^?

shield panel background flashing color ColorARGBInt^?

shield panel background flash period float

shield panel background flash delay float

shield panel background number of flashes uint16

shield panel background flash flags bitfield^?

shield panel background flash length float

shield panel background disabled color ColorARGBInt^?

shield panel background sequence index uint16

shield panel background multitex overlay Block^?

shield panel meter anchor offset Point2DInt^?

shield panel meter width scale

float

Default: 1

shield panel meter height scale

float

Default: 1

shield panel meter scaling flags bitfield^?

shield panel meter meter bitmap TagDependency: bitmap

shield panel meter color at meter minimum ColorARGBInt^?

shield panel meter color at meter maximum ColorARGBInt^?

shield panel meter flash color ColorARGBInt^?

shield panel meter empty color ColorARGBInt^?

shield panel meter flags bitfield

Flag	Mask	Comments
use min max for state changes	`0x1`
interpolate between min max flash colors as state changes	`0x2`
interpolate color along hsv space	`0x4`
more colors for hsv interpolation	`0x8`
invert interpolation	`0x10`

shield panel meter minimum meter value int8

shield panel meter sequence index uint16

shield panel meter alpha multiplier int8

shield panel meter alpha bias int8

shield panel meter value scale int16

shield panel meter opacity float

shield panel meter translucency float

shield panel meter disabled color ColorARGBInt^?

shield panel meter overcharge minimum color ColorARGBInt^?

shield panel meter overcharge maximum color ColorARGBInt^?

shield panel meter overcharge flash color ColorARGBInt^?

shield panel meter overcharge empty color ColorARGBInt^?

health panel background anchor offset Point2DInt^?

health panel background width scale

float

Default: 1

health panel background height scale

float

Default: 1

health panel background scaling flags bitfield^?

health panel background interface bitmap TagDependency: bitmap

health panel background default color ColorARGBInt^?

health panel background flashing color ColorARGBInt^?

health panel background flash period float

health panel background flash delay float

health panel background number of flashes uint16

health panel background flash flags bitfield^?

health panel background flash length float

health panel background disabled color ColorARGBInt^?

health panel background sequence index uint16

health panel background multitex overlay Block^?

health panel meter anchor offset Point2DInt^?

health panel meter width scale

float

Default: 1

health panel meter height scale

float

Default: 1

health panel meter scaling flags bitfield^?

health panel meter meter bitmap TagDependency: bitmap

health panel meter color at meter minimum ColorARGBInt^?

health panel meter color at meter maximum ColorARGBInt^?

health panel meter flash color ColorARGBInt^?

health panel meter empty color ColorARGBInt^?

health panel meter flags bitfield^?

health panel meter minimum meter value int8

health panel meter sequence index uint16

health panel meter alpha multiplier int8

health panel meter alpha bias int8

health panel meter value scale int16

health panel meter opacity float

health panel meter translucency float

health panel meter disabled color ColorARGBInt^?

health panel meter medium health left color ColorARGBInt^?

health panel meter max color health fraction cutoff float

health panel meter min color health fraction cutoff float

motion sensor background anchor offset Point2DInt^?

motion sensor background width scale

float

Default: 1

motion sensor background height scale

float

Default: 1

motion sensor background scaling flags bitfield^?

motion sensor background interface bitmap TagDependency: bitmap

motion sensor background default color ColorARGBInt^?

motion sensor background flashing color ColorARGBInt^?

motion sensor background flash period float

motion sensor background flash delay float

motion sensor background number of flashes uint16

motion sensor background flash flags bitfield^?

motion sensor background flash length float

motion sensor background disabled color ColorARGBInt^?

motion sensor background sequence index uint16

motion sensor background multitex overlays Block^?

motion sensor foreground anchor offset Point2DInt^?

motion sensor foreground width scale

float

Default: 1

motion sensor foreground height scale

float

Default: 1

motion sensor foreground scaling flags bitfield^?

motion sensor foreground interface bitmap TagDependency: bitmap

motion sensor foreground default color ColorARGBInt^?

motion sensor foreground flashing color ColorARGBInt^?

motion sensor foreground flash period float

motion sensor foreground flash delay float

motion sensor foreground number of flashes uint16

motion sensor foreground flash flags bitfield^?

motion sensor foreground flash length float

motion sensor foreground disabled color ColorARGBInt^?

motion sensor foreground sequence index uint16

motion sensor foreground multitex overlays Block^?

motion sensor center anchor offset Point2DInt^?

motion sensor center width scale

float

Default: 1

motion sensor center height scale

float

Default: 1

motion sensor center scaling flags bitfield^?

auxiliary overlay anchor enum^?

overlays Block

Field Type Comments

anchor offset Point2DInt^?

width scale

float

Default: 1

height scale

float

Default: 1

scaling flags bitfield^?

interface bitmap TagDependency: bitmap

default color ColorARGBInt^?

flashing color ColorARGBInt^?

flash period float

flash delay float

number of flashes uint16

flash flags bitfield^?

flash length float

disabled color ColorARGBInt^?

sequence index uint16

multitex overlay Block^?

type enum

Option	Value	Comments
integrated light	`0x0`

flags bitfield

Flag	Mask	Comments
use team color	`0x1`

sounds Block

Field Type Comments

sound

TagDependency

latched to bitfield

Flag	Mask	Comments
shield recharging	`0x1`
shield damaged	`0x2`
shield low	`0x4`
shield empty	`0x8`
health low	`0x10`
health empty	`0x20`
health minor damage	`0x40`
health major damage	`0x80`

scale float

meters Block

Field Type Comments

type enum^?

background anchor offset Point2DInt^?

background width scale

float

Default: 1

background height scale

float

Default: 1

background scaling flags bitfield^?

background interface bitmap TagDependency: bitmap

background default color ColorARGBInt^?

background flashing color ColorARGBInt^?

background flash period float

background flash delay float

background number of flashes uint16

background flash flags bitfield^?

background flash length float

background disabled color ColorARGBInt^?

background sequence index uint16

background multitex overlay Block^?

meter anchor offset Point2DInt^?

meter width scale

float

Default: 1

meter height scale

float

Default: 1

meter scaling flags bitfield^?

meter meter bitmap TagDependency: bitmap

meter color at meter minimum ColorARGBInt^?

meter color at meter maximum ColorARGBInt^?

meter flash color ColorARGBInt^?

meter empty color ColorARGBInt^?

meter flags bitfield^?

meter minimum meter value int8

meter sequence index uint16

meter alpha multiplier int8

meter alpha bias int8

meter value scale int16

meter opacity float

meter translucency float

meter disabled color ColorARGBInt^?

meter minimum fraction cutoff float

meter more flags bitfield

Flag	Mask	Comments
show only when active	`0x1`
flash once if activated while disabled	`0x2`

Acknowledgements

Thanks to the following individuals for their research or contributions to this topic:

Kavawuvi (Invader tag definitions)
MosesOfEgypt (Tag structure research)