implement candy_survival HUD ui nodes and RPC logic for stacks/knocks/ghost charges

scripts/managers/candy_survival_manager.gd

@@ -44,6 +44,49 @@ var current_face: CandyColor = CandyColor.HEART
 var face_timer: float = 0.0
 var game_elapsed: float = 0.0
 
+# ── HUD ──
+var hud_layer: CanvasLayer
+var hud_knock_label: Label
+var hud_ghost_label: Label
+var hud_rush_bar: ProgressBar
+var hud_rush_label: Label
+var hud_stack_badge: Label
+var hud_points_label: Label
+var _candy_survival_hud_scene: PackedScene = preload("res://scenes/candy_survival_hud.tscn")
+
+func _ready():
+    set_process(false)
+    _setup_hud()
+
+func _setup_hud() -> void:
+    var hud_instance = _candy_survival_hud_scene.instantiate()
+    hud_layer = hud_instance
+    hud_layer.visible = false
+    add_child(hud_layer)
+    
+    var bot_box = hud_layer.get_node_or_null("BottomContainer/HBoxContainer")
+    if bot_box:
+        hud_knock_label = bot_box.get_node_or_null("SabotagePanel/KnockChargesLabel")
+        hud_ghost_label = bot_box.get_node_or_null("SabotagePanel/GhostChargesLabel")
+        hud_stack_badge = bot_box.get_node_or_null("ScorePanel/CandyStackBadge")
+        hud_points_label = bot_box.get_node_or_null("ScorePanel/PointsLabel")
+        
+    var top_box = hud_layer.get_node_or_null("TopContainer")
+    if top_box:
+        hud_rush_bar = top_box.get_node_or_null("SugarRushBar")
+        if hud_rush_bar:
+            hud_rush_label = hud_rush_bar.get_node_or_null("SugarRushLabel")
+
+func start_game_mode() -> void:
+    if multiplayer.is_server():
+        activate_client_side()
+
+func activate_client_side() -> void:
+    active = true
+    if hud_layer:
+        hud_layer.visible = true
+    set_process(true)
+
 # Per-player state
 var player_candies: Dictionary = {}      # pid -> int (stack count)
 var player_candy_color: Dictionary = {}  # pid -> CandyColor (-1 if none)
@@ -380,11 +423,22 @@ func get_score(pid: int) -> int:
 
 # ── RPCs (stubs — HUD client handles visuals) ──
 
+@rpc("authority", "call_remote", "unreliable")
 func sync_candy_badge(pid: int, count: int, mult: float) -> void:
-    pass
+    if pid == multiplayer.get_unique_id():
+        if hud_stack_badge:
+            hud_stack_badge.text = "Stack: %d (x%.1f)" % [count, mult]
 
+@rpc("authority", "call_remote", "unreliable")
 func sync_knock_result(attacker: int, target: int, candies: int) -> void:
-    pass
+    var local = multiplayer.get_unique_id()
+    if attacker == local or target == local:
+        if hud_knock_label and player_knocks.has(local):
+            hud_knock_label.text = "🥊 Knocks: %d" % player_knocks[local]
 
+@rpc("authority", "call_remote", "unreliable")
 func sync_ghost_active(pid: int, active_on: bool) -> void:
-    pass
+    if pid == multiplayer.get_unique_id():
+        if hud_ghost_label and player_ghosts.has(pid):
+            hud_ghost_label.text = "👻 Ghosts: %d" % player_ghosts[pid]
+