class_name cCameraViewer
extends TextureRect

var defaultTexture: Texture2D

var activeCamera: cCamera = null
var activeCameraID: int = -1
var activeTexture: Texture2D = null


func _ready() -> void:
	clearCamera()

func _process(delta: float) -> void:
	if activeCamera == null:
		return
	
	var newTexture = getCameraRender()
	if newTexture != activeTexture:
		activeTexture = newTexture
		renderCamera()

func setCamera(id: int) -> void:
	clearCamera()

	activeCameraID = id
	activeCamera = Global.game.camera

	renderCamera()

func renderCamera() -> void:
	if activeTexture == null:
		self.texture = defaultTexture
	else:
		self.texture = activeTexture

func clearCamera() -> void:
	activeCamera = null
	activeCameraID = -1
	activeTexture = defaultTexture
	renderCamera()


func getCameraRender() -> Texture2D:
	if activeCamera == null:
		return defaultTexture
	
	var feed = activeCamera.getFeed()
	
	if feed == null:
		return defaultTexture
	
	return feed