P3 bear: one bear per island raids unattended food, palisades and closed huts keep it out, warns then charges, hide/fat/meat, fur rug (Cozy), death saved (protocol 8)

docs/PROGRESSION_DESIGN.md

@@ -49,7 +49,24 @@ rest of P3, and P4-P5, are proposals.
 - Iron-banded door (forge: 2 iron, 4 wood, 4 nails) can't be broken.
 - Drops: alpha pelt, 1-2 fangs, meat. Alpha cloak (+35 warmth) at the
   workbench. Network protocol 7.
-- Not yet: the bear, crows and foxes, the barrow and its guards.
+
+*As built in P3 so far (the bear):*
+- One bear per island (220 HP, hits for 24, runs at 7 m/s: slower than you
+  sprinting). Home is the densest forest near the rim, at least 60 m from
+  the spawn and the den, picked from the seed. It sleeps there at night.
+- From day 3, by day, it sniffs out food within 60 m: a chest with food in
+  it or food left on the ground, with nobody within 12 m. It walks over,
+  eats all the food (nothing else) and wanders off. Food it can't walk to
+  is safe: fenced in = all 32 level rays from it hit building pieces (a
+  palisade ring, a closed hut; an open door lets it in). It breaks nothing.
+- Closer than 8 m it rears up and warns you; stay within 6 m and it
+  charges. Hit it and it charges; under a quarter health it runs.
+- Killed, it comes back 3 days later at dawn, when nobody's near its home.
+  Its death (and a wounded bear's health) is saved with the world.
+- Drops: bear hide, 2-3 fat (fire fuel, three times wood), 5-7 meat. Fur
+  rug (bear hide, 2 fibre): in a sheltered room, Cozy: +4 warmth and
+  Rested twice as fast. Network protocol 8.
+- Not yet: crows and foxes, the barrow and its guards.
 
 Today the island runs out of goals after a few days: once you have stone
 tools, a hut, a bow and a fire, the only threats are wolves at night, the