M2.5: wildlife, wolves, hunting, fishing and sleeping on the server

scripts/creatures/creature.gd

@@ -168,6 +168,9 @@ func step(dt: float) -> void:
 		_flash -= dt
 		if _flash <= 0.0:
 			_set_material(_mat)
+	if puppet:
+		_puppet_step(dt)
+		return
 	if is_dead():
 		carcass_left -= dt
 		if carcass_left <= 0.0:
@@ -175,10 +178,58 @@ func step(dt: float) -> void:
 		return
 	_attack_cd = maxf(_attack_cd - dt, 0.0)
 	_aggro = maxf(_aggro - dt, 0.0)
-	_think(dt)
+	# Who it's reacting to: the player (or on a server, the nearest one).
+	var t := _pick_target()
+	if t != null:
+		player = t
+		_think(dt)
+	elif state in ["flee", "charge"]:
+		state = "idle"   # nobody about
 	_move(dt)
 	_animate(dt)
 
+func _pick_target() -> Node3D:
+	return world.nearest_player(global_position)
+
+# --- on a client playing online: the server's animal, shown here ------------
+
+## A puppet only shows what the server's copy is doing (creature_net.gd):
+## no thinking, no damage dealt. It can still be hit (that's sent to the
+## server) and butchered.
+var puppet := false
+var _net_pos := Vector3.ZERO
+var _net_yaw := 0.0
+
+func net_update(pos: Vector3, y: float, st: String, spd: float, new_hp: float) -> void:
+	if not puppet:
+		return
+	_net_pos = pos
+	_net_yaw = y
+	speed = spd
+	if new_hp < hp - 0.01 and st != "dead":
+		_flash = 0.15
+		_set_material(_hit_mat)
+		_burst()
+	hp = new_hp
+	if st == "dead" and state != "dead":
+		_burst()
+		_die(global_position + global_basis.z)
+		return
+	if state != "dead":
+		state = st
+
+func _puppet_step(dt: float) -> void:
+	if is_dead():
+		return
+	var k := 1.0 - exp(-12.0 * dt)
+	var p := global_position.lerp(_net_pos, k)
+	if p.distance_to(_net_pos) > 6.0:
+		p = _net_pos   # (a jump: a wolf slipping home to the den)
+	global_position = p
+	yaw = lerp_angle(yaw, _net_yaw, k)
+	rotation.y = yaw
+	_animate(dt)
+
 ## Whether the player is close enough to be noticed. Sprinting, or moving
 ## fast while swimming or jumping, is loud.
 func _notices_player(d: float) -> bool:
@@ -313,6 +364,8 @@ func _animate(dt: float) -> void:
 ## Applies a hit (Actions validates who hit what). `from` = where it came
 ## from, for the reaction.
 func take_hit(damage: float, from: Vector3, embed_id: String = "") -> void:
+	if puppet:
+		return   # (online the server's copy takes the hit)
 	if is_dead():
 		if not embed_id.is_empty():
 			embedded[embed_id] = embedded.get(embed_id, 0) + 1
@@ -349,6 +402,9 @@ func _die(from: Vector3) -> void:
 	collision_layer = 2
 	for l in _legs:
 		l.rotation.x = 0.4
+	if puppet:
+		_visual.rotation.z = -PI * 0.5
+		return
 	# Topple onto its side, away from the blow.
 	var side := 1.0 if (global_position - from).dot(global_basis.x) > 0.0 else -1.0
 	if is_inside_tree() and DisplayServer.get_name() != "headless":