@arg Whether to immediately record the amount as 'Spent FTL'.
@return The amount of FTL that was consumed.
bool consumeFTLUse(double amount);
@doc Grab a chunk of ftl use for our purposes.
@arg FTL use to add.
@return Whether we can use this much ftl.
void modEnergyStored(double amount);
@doc Modify how much Energy is currently stored.
void modEnergyAllocated(double amount);
@doc Modify how much Energy is currently allocated. Allocated energy is considered stored for efficiency purposes, but does not appear as usable energy.