Biological Feed (food) was treated as an "ambient" energy source, so
range_fuel always reported the domain's ceiling regardless of how much
food was carried -- stopping to eat is a resupply, the same category as
refuelling a tank, not a genuinely external/inexhaustible source like
sun or wind. Removed "biological" from AMBIENT_ENERGY_FORMS; food now
uses the normal storage-mass-limited range formula like any fuel.
Solar Sail was still special-cased to a fixed footprint-derived mass
(100m^2 -> 5kg) regardless of what a domain's power/velocity target
actually needed -- the same "fixed reference instead of a requirement
floor" bug biological actuators had before last session's fix. Folded
it into the same general requirement-floor + joint-optimizer path:
declared footprint becomes a FLOOR (SAIL_AREAL_DENSITY_KG_PER_M2), not
a fixed value, so sail size scales with what's actually needed --
"enough panels to supply enough power for actuator impulse" is now
enforced the same way structural/mass-ceiling requirements already are,
instead of relying on a product-spec constant that happened to work or
not. No actuator type is special-cased for mass sizing anymore.
Confirmed the fix surfaces an honest result rather than hiding one: a
solar sail's declared 0.01 W/kg specific power can never reach
interplanetary_travel's 10 W/kg power_density floor at any sail size
(the ratio is capped by the sail's own power_density regardless of
scale), so it correctly still scores 0 there -- a real technology/domain
mismatch, not a sizing bug.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Andrew Simonson
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