Consider spSetUnitUseAirlos(unitID, true) for the "reveal shooter" thing

[sprunk]

Shooters hidden in holes etc are revealed if in airlos. This is currently done by checking if it is in airlos and setting los bitmasks.

Zero-K/LuaRules/Gadgets/unit_show_shooter.lua

Lines 86 to 96 in 93093e0

	local aLos = Spring.IsPosInAirLos(x, 0, z, allyTeamID)
	local los = Spring.IsPosInLos(x, 0, z, allyTeamID)
	-- Don't reveal units which are already in LOS. Waste of time to do so.
	if aLos and not los then
	if buildRevealUnitDef[unitDefID] or (noDecloakUnits[unitDefID] and Spring.GetUnitIsCloaked(unitID)) then
	return
	end
	revealedUnits[allyTeamID][unitID] = immobileUnits[unitDefID] and STATIC_SHOW_TIME or MOBILE_SHOW_TIME
	Spring.SetUnitLosMask(unitID, allyTeamID, 15) -- Prevents engine slow update from modifying state.
	Spring.SetUnitLosState(unitID, allyTeamID, 15) -- Sets the unit to be fully visible.

Spring.SetUnitUseAirlos(unitID, bool) now exists, consider simplifying the above.