Use fire stick magnitude for aim distance

controllers/FireStickController.gd

@@ -3,9 +3,10 @@ extends Node2D
 # Points every armed vessel's gun wherever the right-hand stick is pushed.
 #
 # #172: what it points them at is a PLACE, not a heading. The mouse names one
-# directly; a pushed stick names the one at the guns' reach along it. Each hull
-# then works out its own heading to that place, so the fleet's fire converges
-# there instead of leaving in parallel - see VesselWeaponComponent.
+# directly; a pushed stick names a point along it, with the push magnitude
+# choosing the distance from the fleet up to the guns' reach. Each hull then
+# works out its own heading to that place, so the fleet's fire converges there
+# instead of leaving in parallel - see VesselWeaponComponent.
 #
 # The fleet's guns used to seek their own targets and fire on their own. That
 # made combat something that happened TO the player rather than something they
@@ -76,14 +77,14 @@ func _process(_delta: float) -> void:
 		queue_redraw()
 
 
-# #172: a stick reports a heading, and the guns want a place. The place is at
-# the guns' own reach along that heading - far enough out that a pushed stick
-# still reads as "everything that way", and near enough that the fleet's fire
-# meets rather than spreading for ever.
+# #172 made the stick resolve to a point so fleet fire converges. The stick
+# already reports both direction and a 0..1 displacement; preserve that second
+# value so a phone player can pull the convergence point nearer or push it all
+# the way to the guns' reach.
 func stick_point(direction: Vector2) -> Vector2:
 	if fleet == null or direction == Vector2.ZERO:
 		return Vector2.ZERO
-	return fleet.get_centroid() + direction.normalized() * maxf(guide_range(), 1.0)
+	return fleet.get_centroid() + direction.limit_length(1.0) * maxf(guide_range(), 1.0)
 
 
 # Also the entry point for anything driving the guns without a stick - tests