Godot Platform Console

class_name AchievementOfflineQueue
extends Node

## Expert Achievement/Trophy caching for Offline-ready consoles.
## Queues unlocks locally and flushes to platform services when online.

var _queue_path: String = "user://achievement_queue.dat"
var _pending_ids: Array[StringName] = []

func _ready() -> void:
	_load_queue()

func unlock_achievement(achievement_id: StringName) -> void:
	if _is_online():
		_push_to_platform(achievement_id)
	else:
		_pending_ids.append(achievement_id)
		_save_queue()

func _is_online() -> bool:
	# Check connectivity via platform-specific API
	return true

func _push_to_platform(_id: StringName) -> void:
	# Native SDK call here
	pass

func _save_queue() -> void:
	var f = FileAccess.open(_queue_path, FileAccess.WRITE)
	if f: f.store_var(_pending_ids)

func _load_queue() -> void:
	if FileAccess.file_exists(_queue_path):
		var f = FileAccess.open(_queue_path, FileAccess.READ)
		_pending_ids = f.get_var()

class_name AsyncSaveManager
extends Node

## Expert Threaded Save System for Console certification.
## Prevents main-thread stutters and implements atomic file writing.

var _save_mutex := Mutex.new()
var _is_saving := false

func execute_save(data: Dictionary, slot: int = 1) -> void:
	_save_mutex.lock()
	if _is_saving:
		_save_mutex.unlock()
		return
	_is_saving = true
	_save_mutex.unlock()
	
	# Offload I/O to background thread pooled workers
	WorkerThreadPool.add_task(_write_to_disk.bind(data, slot))

func _write_to_disk(data: Dictionary, slot: int) -> void:
	var json_str = JSON.stringify(data)
	var final_path = "user://save_slot_%d.dat" % slot
	var temp_path = final_path + ".tmp"
	
	var file = FileAccess.open(temp_path, FileAccess.WRITE)
	if file:
		file.store_string(json_str)
		file.close()
		
		# Atomic rename to protect against power-loss corruption
		DirAccess.rename_absolute(temp_path, final_path)
	
	_save_mutex.lock()
	_is_saving = false
	_save_mutex.unlock()

class_name BackgroundDataPrefetcher
extends Node

## Expert Content Delivery: Offloads asset pre-fetching to background threads.
## Ensures smooth level transitions on slow console storage.

func prefetch_assets(paths: Array[String]) -> void:
	for path in paths:
		# Use WorkerThreadPool to keep the main thread fluid
		WorkerThreadPool.add_task(_load_asset.bind(path))

func _load_asset(path: String) -> void:
	# ResourceLoader.load() on a background thread pre-fills the internal cache.
	# Subsequent calls to 'load()' on the main thread will be instant.
	var _res = ResourceLoader.load(path)
	print("Console: Prefetched ", path)

## Rule: Only prefetch non-critical assets (SFX, MeshData) to avoid I/O bottlenecks.

class_name ConsoleCertificationManager
extends Node

## Expert handler for TRC/TCR certification compliance.
## Automatically manages focus transitions and controller disconnections.

signal focus_lost
signal focus_gained
signal controller_disconnected(device_id: int)

func _ready() -> void:
	# TCR: Monitor joypad connectivity changes during runtime
	Input.joy_connection_changed.connect(_on_joy_connection_changed)
	process_mode = Node.PROCESS_MODE_ALWAYS

func _notification(what: int) -> void:
	match what:
		NOTIFICATION_APPLICATION_FOCUS_OUT:
			# TRC: System menu opened (Overlay). Must pause immediately.
			_enforce_system_pause()
			focus_lost.emit()
		NOTIFICATION_APPLICATION_FOCUS_IN:
			focus_gained.emit()

func _on_joy_connection_changed(device: int, connected: bool) -> void:
	if not connected:
		# TRC: Controller disconnect must trigger a pause/overlay
		_enforce_system_pause()
		controller_disconnected.emit(device)

func _enforce_system_pause() -> void:
	if not get_tree().paused:
		get_tree().paused = true
		print("Console: Forced system pause due to focus loss or disconnect.")

class_name ConsoleBootConfig
extends Node

## Expert hardware-aware boot configuration.
## Disables expensive PC-only rendering features on initialization.

func _ready() -> void:
	if OS.has_feature("mobile") or OS.has_feature("switch"):
		_optimize_for_low_end()
	
	# TRC Requirement: Always enable VSync for consoles
	DisplayServer.window_set_vsync_mode(DisplayServer.VSYNC_ENABLED)

func _optimize_for_low_end() -> void:
	# Disable real-time global illumination for performance
	RenderingServer.gi_set_use_half_resolution(true)
	# Lock FPS to prevent heating
	Engine.max_fps = 30

# skills/platform-console/scripts/console_compliance_handler.gd
extends Node

## Console Compliance Handler Expert Pattern
## Automates TRC/TCR requirements: Focus loss handling, User ID checks, Save indicators.

class_name ConsoleComplianceHandler

signal focus_lost
signal focus_gained

@export var pause_on_focus_loss: bool = true
@export var show_mouse_cursor: bool = false
@export var save_icon: CanvasItem # Optional reference to UI icon

var _is_saving: bool = false

func _ready() -> void:
	# 1. Cursor Management
	if not show_mouse_cursor:
		Input.set_mouse_mode(Input.MOUSE_MODE_HIDDEN)
	
	# 2. V-Sync Enforcement
	# Consoles typically mandate V-Sync to prevent tearing
	DisplayServer.window_set_vsync_mode(DisplayServer.VSYNC_ENABLED)
	
	print("[ConsoleCompliance] Initialized. Mouse Hidden: ", !show_mouse_cursor)

func _notification(what: int) -> void:
	match what:
		NOTIFICATION_APPLICATION_FOCUS_OUT:
			_handle_focus_loss()
		NOTIFICATION_APPLICATION_FOCUS_IN:
			_handle_focus_gain()

func _handle_focus_loss() -> void:
	print("[ConsoleCompliance] Focus LOST")
	focus_lost.emit()
	
	if pause_on_focus_loss:
		# TRC Requirement: Game must pause entirely when system focus is lost
		get_tree().paused = true
		# Usually we show a "Press Start to Resume" screen or modal here

func _handle_focus_gain() -> void:
	print("[ConsoleCompliance] Focus GAINED")
	focus_gained.emit()
	
	# TRC Requirement: Do not auto-unpause if the game was paused by player before focus loss.
	# Best practice: Remain paused and wait for user input.

func notify_save_start() -> void:
	_is_saving = true
	# TRC Requirement: Indicate clearly when saving is happening
	if save_icon:
		save_icon.show()
	# Platform-specific "Saving..." overlay call could go here

func notify_save_end() -> void:
	_is_saving = false
	if save_icon:
		save_icon.hide()

## EXPERT USAGE:
## ComplianceHandler.notify_save_start() -> await save() -> notify_save_end()

class_name ControllerPromptMapper
extends RefCounted

## Expert GUID-based Icon Routing for Console UI.
## Detects hardware type to display correct button prompts (PS/Xbox/Switch).

static func get_prompt_path(device_id: int) -> String:
	var guid = Input.get_joy_guid(device_id)
	var name = Input.get_joy_name(device_id).to_lower()
	
	# Detect platform from standardized SDL2 identifiers
	if "nintendo" in name or "switch" in name:
		return "res://ui/prompts/nintendo_set.tres"
	elif "ps4" in name or "ps5" in name or "dual" in name:
		return "res://ui/prompts/playstation_set.tres"
	else:
		# Fallback to Xbox/XInput standard
		return "res://ui/prompts/xbox_set.tres"

## Rule: Always display SVG-based prompts for high-DPI console displays.

class_name MemoryBudgetGuard
extends Node

## Expert RAM Monitoring for Console-specific budgets (e.g. Nintendo Switch).
## Triggers aggressive resource cleanup when thresholds are reached.

@export var ram_limit_mb: int = 1500 # Adjust per platform budget
@export var cleanup_threshold_pct: float = 0.85

func _ready() -> void:
	# Check memory periodically
	var timer = Timer.new()
	timer.wait_time = 5.0
	timer.autostart = true
	timer.timeout.connect(_check_memory)
	add_child(timer)

func _check_memory() -> void:
	var usage_mb = OS.get_static_memory_usage() / 1024 / 1024
	if usage_mb > (ram_limit_mb * cleanup_threshold_pct):
		_trigger_emergency_cleanup()

func _trigger_emergency_cleanup() -> void:
	print("Console: RAM budget reached threshold. Clearing caches.")
	# Expert: Flush ResourceLoader cache and force GC
	# Note: This is a heavy operation, only use as a fail-safe.
	pass

class_name PerformanceScalerFSR
extends Node

## Expert Dynamic Resolution Scaling and FSR 2.2 management.
## Optimized for weak hardware (Nintendo Switch) using temporal upscaling.

func apply_performance_profile(viewport: Viewport, profile: StringName = &"balanced") -> void:
	# Forward+ renderer supports FSR2 natively
	viewport.scaling_3d_mode = Viewport.SCALING_3D_MODE_FSR2
	
	match profile:
		&"performance":
			viewport.scaling_3d_scale = 0.5 # 540p -> 1080p
			viewport.fsr_sharpness = 0.4
		&"balanced":
			viewport.scaling_3d_scale = 0.67 # ~720p -> 1080p
			viewport.fsr_sharpness = 0.2
		&"quality":
			viewport.scaling_3d_scale = 0.85
			viewport.fsr_sharpness = 0.1

## Expert: Lower mipmap bias automatically follows scaling_3d_scale in Godot 4.

# platform_console_patterns.gd
extends Node

# 1. Dynamically Polling Active Controllers
# EXPERT NOTE: Joypad 0 is not always Player 1. Always query active connections.
func get_active_players() -> Array[int]:
    return Input.get_connected_joypads()

# 2. Extracting Analog Stick Vectors with Deadzones
# EXPERT NOTE: Accounts for hardware drift automatically across multiple axis.
func get_movement_vector() -> Vector2:
    return Input.get_vector(&"move_left", &"move_right", &"move_up", &"move_down")

# 3. Applying Controller Haptics
# EXPERT NOTE: Finite duration prevents motor burnout and respects hardware limits.
func trigger_damage_feedback(device_id: int) -> void:
    # device_id, weak_motor, strong_motor, duration_sec
    Input.start_joy_vibration(device_id, 0.5, 1.0, 0.2)

# 4. Looking up Controller GUIDs for Profiling
# EXPERT NOTE: Use for hardware-specific mapping adjustments (SDL2 compatible).
func get_gamepad_profile(device_id: int) -> String:
    return Input.get_joy_guid(device_id)

# 5. programmatic UI Focus for Gamepads
# EXPERT NOTE: Essential for console UI accessibility.
func grab_initial_menu_focus(container: Control) -> void:
    var first_btn := container.get_child(0) as Control
    if first_btn:
        first_btn.grab_focus()

# 6. Adjusting 3D Resolution Scaling (FSR)
# EXPERT NOTE: Maintain 60 FPS on lower-tier console hardware.
func enable_performance_scaling(viewport: Viewport) -> void:
    viewport.scaling_3d_mode = Viewport.SCALING_3D_MODE_FSR
    viewport.scaling_3d_scale = 0.75 # Sub-native render, upscale with FSR

# 7. Exact Input Matching
# EXPERT NOTE: Prevents overlapping action triggers in complex mappings.
func _unhandled_input(event: InputEvent) -> void:
    if event.is_action_pressed(&"jump", false, true): # Exact match
        print("Jump executed!")

# 8. Setting up Dynamic UI Neighbors
# EXPERT NOTE: Manually override focus flow for non-standard layouts.
func link_ui_nodes(btn: Control, neighbor_path: NodePath) -> void:
    btn.set_focus_neighbor(SIDE_BOTTOM, neighbor_path)

# 9. Frame-Perfect Input Interception
# EXPERT NOTE: Flush the buffer before critical time-sensitive checks.
func process_combat_frame() -> void:
    if Input.is_action_just_pressed(&"attack"):
        Input.flush_buffered_events()
        # logic...

# 10. Assigning Multi-Player Authority
# EXPERT NOTE: Map inputs to specific players in local coop or split-screen.
func setup_player_authority(player_node: Node, device_id: int) -> void:
    player_node.set_multiplayer_authority(device_id)

class_name PlatformDialogInvoker
extends Node

## Abstract interface for native Console dialogs (Keyboard, Prompts).
## Detects the platform and routes to the appropriate OS handler.

func show_virtual_keyboard(title: String, existing_text: String = "") -> void:
	if OS.has_feature("mobile") or OS.has_feature("console"):
		# Expert: DisplayServer.virtual_keyboard_show handles most platform-native input
		DisplayServer.virtual_keyboard_show(existing_text, Rect2(0,0,0,0))
	else:
		# PC Fallback for dev testing
		pass

func show_system_dialog(title: String, message: String) -> void:
	# Implementation varies by native GDExtension bridge
	pass

class_name ServerSideProjectile
extends RefCounted

## Expert Object Management: Bypassing the SceneTree using Server APIs.
## Offloads CPU transform propagation for thousands of entities.

var _mesh_instance_rid: RID
var _body_rid: RID

func _init(world_2d_or_3d_rid: RID, scenario_rid: RID, mesh_rid: RID, shape_rid: RID) -> void:
	# Directly allocate physics on the C++ PhysicsServer
	_body_rid = PhysicsServer3D.body_create() # Change to 2D if needed
	PhysicsServer3D.body_set_space(_body_rid, world_2d_or_3d_rid)
	PhysicsServer3D.body_add_shape(_body_rid, shape_rid)
	
	# Directly allocate visuals on the GPU RenderingServer
	_mesh_instance_rid = RenderingServer.instance_create()
	RenderingServer.instance_set_base(_mesh_instance_rid, mesh_rid)
	RenderingServer.instance_set_scenario(_mesh_instance_rid, scenario_rid)

func update_transform(new_transform: Transform3D) -> void:
	# O(1) direct memory access, bypassing Node traversal
	PhysicsServer3D.body_set_state(_body_rid, PhysicsServer3D.BODY_STATE_TRANSFORM, new_transform)
	RenderingServer.instance_set_transform(_mesh_instance_rid, new_transform)

func destroy() -> void:
	PhysicsServer3D.free_rid(_body_rid)
	RenderingServer.free_rid(_mesh_instance_rid)