✅ Verified in-game — deeper pass: reframed as a screen-tint override (not an ordnance spawner), documented the 1.75s delay (times the two-stage fuel-air detonation) and ShieldFace, surfaced the Atmosphere tunables, cross-linked mrxfuelairbomb/MrxUtil/Graphics

Airstrike_Atmosphere_FuelAirBomb

Module: airstrike_atomsphere_fuelairbomb.lua

Overview

This is the screen-grade / post-process flash for the Fuel-Air Bomb airstrike — it does not spawn the bomb. On activation it waits 1.75 s (longer than every other variant), then overrides the global Graphics.Atmosphere look and makes nearby heroes shield their eyes via MrxUtil.ShieldFace. The 1.75 s delay lines up with the fuel-air weapon’s characteristic delayed secondary ignition: MrxFuelAirBomb drops the projectile, sprays fuel, then ignites the fireball on its own timers — this grade is meant to hit at the ignition, not the initial drop.

atomsphere is a typo baked into the real in-game object name (it means atmosphere). Leave it as-is.

Inheritance

Inherits from: none
Imports: MrxUtil

Instance pattern

Stateless utility module — no per-instance table, no uGuid management, no persistent state. Reacts to one engine OnActivate call.

Functions

`OnActivate(guid)`

Engine lifecycle callback. Schedules _GraphicsAto 1.75 s later via Event.Create(Event.TimerRelative, {1.75}, _GraphicsAto, {guid}) — the delay is what distinguishes this from the other variants (which fire at 0.1–0.15 s).

`_GraphicsAto(guid)`

Runs the Graphics.Atmosphere.Begin() … End() override block (see tunables), then calls MrxUtil.ShieldFace(guid) — plays the "shieldface" action on every player hero within 150 units of guid.

Module constants & tunables

Hardcoded literals inside _GraphicsAto (no named module constants). Notable for this variant:

Constant	Value	Effect
`OnActivate` delay	`1.75` s	Times the grade to the fuel-air ignition, not the drop.
`fAtmosphereLimit`	`200`	Standard haze reach.
`fBloomAmount` / `fBloomMultiplier`	`1` / `0.8`	Max bloom (bright fireball).
`fLightIntensity`	`2.5`	Strong over-bright flash.
`fTimeRestore`	`1.7`	Blends back over ~1.7 s.

Ambient/cube/rim colors are neutral grey 128,128,128,255; gradient stops uiGradient0_Color2 / uiGradient1_Color1 are zeroed to 0,0,255,0.

Events

Not an Event.Create subscription. Event.TimerRelative schedules _GraphicsAto once, 1.75 s after activation. OnActivate is an engine lifecycle callback.

Notes for modders

The 1.75 s OnActivate delay is the interesting knob here — override OnActivate if you want the grade to hit sooner/later relative to the fuel-air ignition sequence in MrxFuelAirBomb.
Override _GraphicsAto (a plain global) to retune the grade or drop the ShieldFace flinch (150-unit radius, defined in mrxutil).