class_name GameplayRenderer
extends Node2D
## Base class for renderers that should pause when a fullscreen implant app
## covers the gameplay view (D-170).
##
## Subclasses override _gameplay_process(delta) and _gameplay_draw() instead
## of _process() and _draw(). These are only called when gameplay is visible.
##
## Usage:
##   extends GameplayRenderer
##   func _gameplay_process(delta: float) -> void: ...
##   func _gameplay_draw() -> void: ...

var gameplay_occluded: bool = false


func _ready() -> void:
	HudGroups.gameplay_occluded.connect(_on_gameplay_occluded)
	_renderer_ready()


## Override this instead of _ready() in subclasses.
func _renderer_ready() -> void:
	pass


func _on_gameplay_occluded(occluded: bool) -> void:
	gameplay_occluded = occluded
	if occluded:
		# Force a blank redraw so stale frames don't linger
		queue_redraw()


func _process(delta: float) -> void:
	if gameplay_occluded:
		return
	_gameplay_process(delta)


func _draw() -> void:
	if gameplay_occluded:
		return
	_gameplay_draw()


## Override in subclasses — called every frame when gameplay is visible.
func _gameplay_process(_delta: float) -> void:
	pass


## Override in subclasses — called for draw when gameplay is visible.
func _gameplay_draw() -> void:
	pass