Let deities build in any sector. If the deity's tech level is too
low, use the required tech level instead. Don't require or use
materials, work or money. Bridge spans still require support.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
Construction materials required for building a ship, plane or land
unit are rounded randomly. Crafty players exploit this to save
materials: they put just enough materials there so that build succeeds
when it rounds down. Then they simply keep trying until it succeeds.
Planes and land units are built at 10%, so rounding happens when
materials for 100% aren't multiples of ten. If they're below ten, you
can even build without materials. In the stock game, this is the case
for linf, and many plane types.
Ships are built at 20%, so multiples of five aren't rounded. Ship
building never rounds in the stock game.
Prevent the abuse of random rounding by requiring the required
fractional amount rounded up to be present. Don't change the actual
charging of materials; that's still randomly rounded.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
drnuke_const is not covered, yet.
Random rounding causes some complications: sometimes build succeeds
without materials. Troublesome spots are clearly marked in the test
input.
Signed-off-by: Markus Armbruster <armbru@pond.sub.org>
