Resolve pending gameplay tickets

vessels/DistorderVesselDefinition.tres

@@ -5,7 +5,7 @@
 script = ExtResource("1")
 definition_id = "distorder"
 display_name = "Energy Propulser"
-description = "Unarmed propulsion hull that burns energy to drive the whole fleet faster. While one flies with you, a fader lets you push cruise speed past its default."
+description = "Unarmed propulsion hull that burns energy to drive the whole fleet faster. It also grants an aimed fleet dash; each Propulser carries its own recharge."
 build_cost = 14
 build_resource_costs = {"ore": 14, "energy": 8}
 build_time = 16.0
@@ -18,7 +18,7 @@ component_scenes = Array[PackedScene]([ExtResource("2")])
 base_stats = {"max_speed": 645.0, "acceleration": 1845.0, "delivery_speed": 180.0}
 unlock_id = "unlock_distorder"
 unlock_name = "Unlock Energy Propulser"
-unlock_description = "Research a propulsion hull that burns energy to drive the whole fleet faster - while one flies with you, a fader lets you push cruise speed past its default."
+unlock_description = "Research a propulsion hull that burns energy to drive the whole fleet faster and grants an aimed fleet dash."
 unlock_cost = 0
 unlock_resource_costs = {"energy": 50}
 research_point_cost = 1

vessels/Fleet.gd

@@ -33,6 +33,11 @@ var fleet_target: Vector2 = Vector2.ZERO
 # travelling along. Zero heading means the fleet is not being steered.
 var anchor: Vector2 = Vector2.ZERO
 var steer_direction: Vector2 = Vector2.ZERO
+# An aimed Propulser burst translates the complete formation as one body.
+var dash_direction: Vector2 = Vector2.ZERO
+var dash_remaining: float = 0.0
+
+const DASH_SPEED: float = 1400.0
 
 
 func _ready() -> void:
@@ -227,12 +232,29 @@ func move_in_direction(direction: Vector2) -> void:
 	steer_direction = direction.normalized()
 
 
+func dash(direction: Vector2, distance: float) -> bool:
+	if direction.length() < 0.001 or distance <= 0.0 or ships.is_empty():
+		return false
+	if dash_remaining <= 0.0:
+		anchor = get_formation_origin()
+	dash_direction = direction.normalized()
+	dash_remaining = distance
+	return true
+
+
+func is_dashing() -> bool:
+	return dash_remaining > 0.0
+
+
 func _process(delta: float) -> void:
 	# #158: a building may pay a local cost out of the hold when the fleet is
 	# actually standing at it, and the autoload has no other way to know
 	# where that is. Written before the early return below - a parked fleet
 	# is exactly the case that matters.
 	GameState.fleet_position = get_centroid()
+	if is_dashing():
+		_advance_dash(delta)
+		return
 	if steer_direction == Vector2.ZERO:
 		return
 	# The anchor - the fleet's formation centre - travels at cruise_speed.
@@ -244,6 +266,29 @@ func _process(delta: float) -> void:
 	_assign_slot_targets()
 
 
+func _advance_dash(delta: float) -> void:
+	var step: float = minf(DASH_SPEED * delta, dash_remaining)
+	var displacement: Vector2 = dash_direction * step
+	dash_remaining -= step
+	anchor += displacement
+	fleet_target += displacement
+	for ship in ships:
+		if not is_instance_valid(ship):
+			continue
+		# Move the hull and its destination together. That preserves every
+		# formation offset and prevents normal steering from trying to "repair"
+		# the burst by pulling ships back toward their pre-dash targets.
+		ship.position += displacement
+		ship.move_target += displacement
+		ship.velocity = Vector2.ZERO
+		ship.fleet_velocity = Vector2.ZERO
+		ship.rotation = dash_direction.angle() + PI / 2.0
+	if dash_remaining <= 0.001:
+		dash_remaining = 0.0
+		if steer_direction != Vector2.ZERO:
+			_assign_slot_targets()
+
+
 func _effective_cruise_speed() -> float:
 	return cruise_speed * GameState.fleet_speed_multiplier
 

vessels/VesselDistorderComponent.gd

@@ -1,9 +1,25 @@
 class_name VesselDistorderComponent
-extends Node
+extends "res://vessels/VesselCooldownFillComponent.gd"
 
-# Pure presence marker (#59) - no per-shot behaviour, no tick(). Its only
-# job is to make Ship.has_capability("distorder") true, which is what
-# SpeedFader.gd/Fleet.gd key off to reveal and apply the speed boost.
-# Energy drain while boosted is a later ticket (#62).
+# The presence marker used by the speed fader, plus the Energy Propulser's
+# independently recharging dash (#179). Keeping both on one component means
+# a vessel is the source of both propulsion capabilities and carries its own
+# cooldown just like gas bombers and laser vessels do.
 
 var capability_id := "distorder"
+
+const DASH_COOLDOWN: float = 5.0
+const READY_COLOR := Color(0.85, 0.95, 0.15)
+const COOLING_COLOR := Color(0.28, 0.31, 0.08)
+
+
+func _init() -> void:
+	cooldown_duration = DASH_COOLDOWN
+
+
+func consume_dash() -> bool:
+	return _begin_cooldown(DASH_COOLDOWN)
+
+
+func _ready_color() -> Color: return READY_COLOR
+func _cooling_color() -> Color: return COOLING_COLOR

vessels/VesselDistorderComponent.tscn

@@ -2,5 +2,5 @@
 
 [ext_resource type="Script" path="res://vessels/VesselDistorderComponent.gd" id="1"]
 
-[node name="DistorderComponent" type="Node"]
+[node name="DistorderComponent" type="Node2D"]
 script = ExtResource("1")