big

scenes/maps/level_runtime.gd

@@ -4,6 +4,45 @@ class_name LevelRuntime
 var _player: CharacterBody3D
 
 
+## The play volume for an AUTHORED map.
+##
+## The code-built levels each pass their own extents, because they know them as
+## constants. A hand-placed .tscn does not, so this measures the level instead —
+## merge every reasonably-sized visual's world AABB, then pad it generously.
+##
+## Without one, a map on this runtime had no out-of-bounds handling at all: a
+## player who left the geometry simply fell for ever, with no warning and no
+## death. That was the state of fps_blockout.
+func _build_combat_area() -> void:
+	var bounds := AABB()
+	var any := false
+	for child in find_children("*", "VisualInstance3D", true, false):
+		var vi := child as VisualInstance3D
+		var box := vi.get_aabb()
+		# Skip the sky, a directional light's own AABB, and anything else
+		# absurd — one of them would swallow the level and put the boundary
+		# somewhere useless.
+		if box.size.length() > 5000.0 or box.size.length() < 0.001:
+			continue
+		box = vi.global_transform * box
+		if not any:
+			bounds = box
+			any = true
+		else:
+			bounds = bounds.merge(box)
+	if not any:
+		bounds = AABB(Vector3(-50, -10, -50), Vector3(100, 60, 100))
+
+	# Padding, not a tight fit: the volume marks where a player is TOLD they
+	# have left, and a boundary hugging the geometry fires while someone is
+	# still standing on a legitimate ledge. Deep below, because falling out of
+	# the world is the case this exists to catch.
+	var pad := Vector3(20, 0, 20)
+	var size := bounds.size + pad * 2.0 + Vector3(0, 60, 0)
+	var centre := bounds.get_center() + Vector3(0, 20.0, 0)
+	CombatArea.add_to(self, size, centre)
+
+
 func _ready() -> void:
 	# Hide mouse
 	Input.mouse_mode = Input.MOUSE_MODE_CAPTURED
@@ -13,6 +52,8 @@ func _ready() -> void:
 	if not has_node("WorldEnvironment"):
 		LevelEnvironment.add_to(self)
 
+	_build_combat_area()
+
 	
 	# Multiplayer Spawning
 	var spawner = MultiplayerSpawner.new()