Tell the roster the truth about a wounded character

Health survives a run now, so a character sitting on the select screen
can be nearly dead -- and the screen was still printing only the ceiling.
"level 11, 2000 hp" for a character on 160 is a lie told at the exact
moment it matters most, because the next thing that happens is the player
walks it into a dungeon under permadeath.

The roster message carries current hit points alongside the maximum, and
the screen shows a fraction only when it means something: a healthy
character still reads "1300 hp" rather than "1300/1300". The field is
inserted mid-record, which shifts every field after it, so the protocol
version goes to 10 -- a mismatched client would read the active flag out
of the middle of a health value.

tools/screenshot.gd had no capture for this screen, which is how a UI
change to it could have shipped unlooked-at. It now shows a made-up
roster of three characters -- whole, badly hurt, nearly dead -- for the
same reason the upgrade screen is fed a made-up offer: the point is the
layout, not a dungeon run. Getting there needs the player walked off the
quartermaster first, or the game scene re-opens the upgrade screen over
the top of it every frame.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/net/net_codec.gd

@@ -618,7 +618,13 @@ static func encode_characters(chars: Array[Character], selected: String) -> Pack
 		b.put_u8(clampi(c.level, 1, 255))
 		b.put_u32(maxi(c.total_xp, 0))
 		b.put_u8(clampi(roundi(c.xp_progress() * 255.0), 0, 255))
-		b.put_u16(clampi(c.max_hp(), 1, 65535))
+		var ceiling := c.max_hp()
+		b.put_u16(clampi(ceiling, 1, 65535))
+		# Current health as well as the ceiling. Health survives a run now, so a
+		# character on the roster can be badly hurt, and a screen that showed
+		# only the maximum would advertise a wounded character as whole -- which
+		# under permadeath is the worst possible thing to be wrong about.
+		b.put_u16(clampi(ceiling if c.hp == Character.HP_FULL else c.hp, 1, 65535))
 		b.put_u8(1 if c.active else 0)
 		b.put_u32(c.colour.to_rgba32())
 		for i in SimConfig.INVENTORY_SLOTS:
@@ -657,8 +663,8 @@ static func decode_characters(data: PackedByteArray) -> Dictionary:
 		return {"selected": selected, "characters": out}
 	var count := b.get_u8()
 	# Bytes each entry needs after its two strings: level, xp, progress,
-	# max_hp, active, colour, then one byte per inventory slot.
-	var fixed := 1 + 4 + 1 + 2 + 1 + 4 + SimConfig.INVENTORY_SLOTS
+	# max_hp, hp, active, colour, then one byte per inventory slot.
+	var fixed := 1 + 4 + 1 + 2 + 2 + 1 + 4 + SimConfig.INVENTORY_SLOTS
 	for _i in count:
 		var id := _safe_utf8(b)
 		var display := _safe_utf8(b)
@@ -671,6 +677,7 @@ static func decode_characters(data: PackedByteArray) -> Dictionary:
 			"xp": b.get_u32(),
 			"progress": float(b.get_u8()) / 255.0,
 			"max_hp": b.get_u16(),
+			"hp": b.get_u16(),
 			"active": b.get_u8() == 1,
 			"colour": Color.hex(b.get_u32()),
 			"inventory": _read_inventory(b),

src/net/protocol.gd

@@ -22,7 +22,11 @@ extends RefCounted
 ## 8: upgrades. A new server -> client upgrade-state message, a new
 ##    client -> server choice message, and two more SelectResult values.
 ## 9: telegraphed boss attacks. A new TELEGRAPH event, appended to the enum.
-const VERSION := 9
+## 10: health survives a run, so the character roster carries current hit
+##     points as well as the ceiling. Inserted mid-record, which shifts every
+##     field after it -- a mismatched client would read the active flag out of
+##     the middle of a health value.
+const VERSION := 10
 const DEFAULT_PORT := 27015
 const MAX_CLIENTS := 32
 

src/ui/character_select.gd

@@ -140,8 +140,17 @@ func _row_for(c: Dictionary) -> Control:
 
 	var playing := String(c["id"]) == _selected
 	var label := Label.new()
-	label.text = "  %s   level %d   %d hp%s" % [
-		c["name"], int(c["level"]), int(c["max_hp"]),
+	# Current health is shown only when it is not full. Health carries between
+	# runs now, so "1300 hp" on a character sitting on 160 would be a lie told
+	# at the exact moment it matters most -- but printing "1300/1300" on every
+	# healthy character is noise, so the fraction appears only when it means
+	# something.
+	var ceiling := int(c["max_hp"])
+	var current := int(c.get("hp", ceiling))
+	var health := "%d hp" % ceiling if current >= ceiling \
+		else "%d/%d hp" % [current, ceiling]
+	label.text = "  %s   level %d   %s%s" % [
+		c["name"], int(c["level"]), health,
 		"   <- playing" if playing else ""]
 	label.add_theme_color_override("font_color", Color(0.85, 0.9, 1.0))
 	label.size_flags_horizontal = Control.SIZE_EXPAND_FILL