extends CharacterBody3D
class_name PlayerCharacter

var aceleration: float = 4.32 #Current aceleration
var maxSpeed: float = 6.2 #Maximum Speed
var sprintSpeed: float = 3.34 #Additional Speed gained while Sprinting
var slowdownSpeedLimit: float = 0.8 #How fast the player can go when slowed
var gear: String = "neutral" #Weather the player is going forward, backward or standing still
var isMoving: bool = false
var slowed: bool = false

var momentum: float = 0
var newMoveDirection: Vector3 = Vector3(0,0,0)
var moveDirection: Vector3 = Vector3(0,0,0)
var deceleration: float = 5.56

var turnSpeed: float = PI/2 #Speed at wich body turn sideways
var handling: float = 0.67
var facingDirection = Vector2(0,1) #Where the legs are facing
var sprinting = false #While Player is sprinting
var sprintEnergy: float = 100 #Energy used for Sprinting
var sprintEnergyInitialUse: float = 4.5 #How much % sprint energy is used immediatly when initiating a sprint
var sprintEnergyUse: float = 17.5 #How much % energy is used per 1 sec of sprint
var sprintEnergyGain: float = 30 #How much % energy is gained per 1 sec of recovery

var maxDriftAngle = 0.12 #Quaternion(0,0,0.06,0.998).normalized() #How much the playesr turns to the side while drifting (radians)
var rightLeftLean: float = 0.0 #How much the player leans right or left from -1 to 1 with negative numbers being left and 0 being no lean

var currentControlState: int = 0
enum controls {DEFAULT,STANDARD_MINIGAME}

var health: float = 100.0
var invoulnerable: bool = false
var alive: bool = true

@onready var camera: Camera3D = $CameraPivot/Camera3D
@onready var cameraPivot: Marker3D = $CameraPivot

@onready var flashlight: SpotLight3D = $CameraPivot/Camera3D/flashlight


@onready var backlightR := $pivot/BodyPivot/body/BacklightR
@onready var backlightL := $pivot/BodyPivot/body/BacklightL

@onready var pivot: = $pivot
@onready var headPivot: = $pivot/HeadBinoculars/HeadPivot
@onready var headBinoculars: = $pivot/HeadBinoculars
@onready var legs := $pivot/BodyPivot/CaterpillarLegs
@onready var body: = $pivot/BodyPivot/body

@onready var hud = $/root/Main/Hud
@onready var interactCross :=  $/root/Main/Hud/InteractCross
@onready var sprintBar := $/root/Main/Hud/TextureProgressBar

@onready var grabRaycast: = $CameraPivot/Camera3D/GrabDetector
@onready var grabPivot: = $pivot/BodyPivot/body/GrabPivot
@onready var grabBox: = $pivot/BodyPivot/body/GrabBox
var grabbedObject: GrabableObject

@onready var interactRaycast = $CameraPivot/Camera3D/InteractDetector
@onready var VoiceChat = $VoiceChat

@onready var bodyPivot: Node3D = $pivot/BodyPivot
var mouseSensetivity := 0.1 #How much mouse movement affects ingame camera movement

var spectatorScene: PackedScene = preload("res://actors/Player/Spectator.tscn")
var spectatorParent: Node3D

var mapLogic: MapLogic

#Camera Shake Stuff 
var traumaReductionRate:float = 0.34
var trauma: float = 0
@export var maxX = 12
@export var maxY = 12
@export var maxZ = 7
@export var shakeIntensety : float = 7.0
var time: float = 0
@export var noise: Noise
var noiseSpeed: float = 50
var initialRotation = rotation_degrees as Vector3
# Camera Shake Stuff end

func _enter_tree() -> void:
	set_multiplayer_authority(name.to_int())
	if is_multiplayer_authority():
		$CameraPivot/Camera3D.make_current()
		$pivot/HeadBinoculars.hide()
		$/root/Main/Hud/TextureProgressBar.show()

func _ready() -> void:
	Multiplayer.player_ready.emit(int(name))
	Input.mouse_mode = Input.MOUSE_MODE_CAPTURED
	mapLogic = Multiplayer.currentMapLogic
	spectatorParent = get_node("/root/Main/Spectators")
	if mapLogic:
		mapLogic.onCollision.connect(onCollision)
	if is_multiplayer_authority():
		position.y += 2
		return

func _process(delta: float) -> void:
	if not is_multiplayer_authority(): return
	if not alive: return
	
	if invoulnerable and trauma == 0.0:
		invoulnerable = false
	
	if Input.is_action_just_pressed("debug"): ##Debug
		die()
	
	match currentControlState:
		controls.DEFAULT:
			regularControlsIdle(delta)
		controls.STANDARD_MINIGAME:
			standardMinigameControlsIdle(delta)
	

func _physics_process(delta: float) -> void:
	if not is_multiplayer_authority(): return
	if not alive: return
	
	match currentControlState:
		controls.DEFAULT:
			regularControlsPhysics(delta)
		controls.STANDARD_MINIGAME:
			endOfPhysicsCleanup(delta)

func standardMinigameControlsIdle(_delta:float):
	if Input.is_action_just_pressed("moveDown") or Input.is_action_just_pressed("interact"):
		currentControlState = controls.DEFAULT

func regularControlsIdle(_delta:float):
	#Interacting Logic
	var InteractCollider: InteractBox = interactRaycast.get_collider()
	
	if InteractCollider and Input.is_action_just_pressed("interact"):
		InteractCollider.playerRef = self
		InteractCollider.interact()
		if InteractCollider.type == "minigame":
			currentControlState = controls.STANDARD_MINIGAME
			momentum = 0
	
	#Grabbing Logic
	var GrabCollider: GrabBox = grabRaycast.get_collider()
	var grabBoxCollider: Array[Area3D] = grabBox.get_overlapping_areas()
	
	
	if(grabBoxCollider and Input.is_action_just_pressed("interact") and !grabbedObject):
		if grabBoxCollider.has(GrabCollider): #If the player is looking at an object and it is in the grab box
			grabbedObject = GrabCollider.grab()
		else:
			#If the player is not looking at an object, grab the closet one in the grab box
			var closestObj: GrabBox
			var distanceToClosestObj: float = 100
			for grabObj in grabBoxCollider:
				if (getDistance(self,grabObj) < distanceToClosestObj):
					closestObj = grabObj
					distanceToClosestObj = getDistance(self, grabObj)
			grabbedObject = closestObj.grab()
	
	if InteractCollider or grabBoxCollider:
		interactCross.show()
	else:
		interactCross.hide()
	
	if Input.is_action_just_pressed("flashlight"):
		flashlight.visible = !flashlight.visible
	
	if grabbedObject:
		grabbedObject.global_position = grabPivot.global_position# + grabbedObject.grabPositionPositionOffset
		grabbedObject.rotation = grabPivot.global_rotation + grabbedObject.grabPositionRotationOffset
		if grabbedObject.grabBox.heavy: slowed = true
		if Input.is_action_just_pressed("drop"):
			grabbedObject.release.rpc()
			grabbedObject = null
			slowed = false
			momentum = 0
		
		if Input.is_action_just_pressed("throw"):
			grabbedObject.release.rpc()
			grabbedObject.throw.rpc_id(1,facingDirection.x,facingDirection.y,camera.rotation.x)
			grabbedObject = null
			slowed = false
			momentum = 0

func regularControlsPhysics(delta: float):
	isMoving = false
	
	#Drain energy on sprint start to prevent the player from pressing sprint every other frame to get infinity energy
	if Input.is_action_just_pressed("Sprint"):
		sprintEnergy = clamp(sprintEnergy - sprintEnergyInitialUse, -(sprintEnergyInitialUse*2) , 100)
	
	# Rest of sprint energy logic
	if Input.is_action_pressed("Sprint"):
		sprintEnergy = clamp(sprintEnergy - sprintEnergyUse * delta, 0 , 100) # Drain sprint when holding the button
		
		if sprintEnergy > 0:
			sprinting = true
		else:
			sprinting = false
		
	else:
		sprinting = false
		sprintEnergy = clamp(sprintEnergy + sprintEnergyGain * delta, -(sprintEnergyInitialUse*2) , 100) # Gain sprint when not holding the button
	
	
	if not is_on_floor(): velocity += get_gravity()
	
	newMoveDirection = Vector3(0,0,0)
	
	# Set moveDirection based on input
	if Input.is_action_pressed("moveUp") and !Input.is_action_pressed("moveDown"):
		isMoving = true
		newMoveDirection += Vector3(facingDirection.x,0,facingDirection.y)
	if Input.is_action_pressed("moveRight") and !Input.is_action_pressed("moveLeft"):
		newMoveDirection -= Vector3(facingDirection.x,0,facingDirection.y).rotated(up_direction,PI/2)
	if Input.is_action_pressed("moveLeft") and !Input.is_action_pressed("moveRight"):
		newMoveDirection += Vector3(facingDirection.x,0,facingDirection.y).rotated(up_direction,PI/2)
	if Input.is_action_pressed("moveDown") and !Input.is_action_pressed("moveUp"):
		isMoving = true
		newMoveDirection += Vector3(facingDirection.x,0,facingDirection.y)
		showBacklights()
	else:
		hideBacklights()
	
	
	if newMoveDirection != Vector3(0,0,0):
		moveDirection = clampVectorLength(moveDirection + newMoveDirection*delta,0,handling) 
	
	
	endOfPhysicsCleanup(delta)
	
	#Momentum stuff
	if isMoving:
		if Input.is_action_pressed("moveDown"):
			momentum = clamp(momentum + -aceleration*2 * delta,-maxSpeed/2,maxSpeed)
		else:
			momentum = clamp(momentum + aceleration * delta,-maxSpeed/2,maxSpeed)
	else:
		if momentum >= 0:
			momentum = clamp(momentum - deceleration * delta,-maxSpeed/2,maxSpeed)
		if momentum < 0:
			momentum = clamp(momentum + deceleration * delta,-maxSpeed/2,maxSpeed)
	
	if sprinting and isMoving and !Input.is_action_pressed("moveDown"):
		velocity = clampVectorLength(moveDirection.normalized() * (momentum + sprintSpeed),0,maxSpeed+sprintSpeed)
	else:
		velocity = clampVectorLength(moveDirection.normalized() * momentum,0,maxSpeed)
	
	bodyPivot.rotation.y = rotate_toward(bodyPivot.rotation.y, -atan2(moveDirection.z,moveDirection.x) + PI/2,delta*turnSpeed)
	#print(facingDirection.length())
	move_and_slide() #applies movement

func endOfPhysicsCleanup(delta: float):
	trauma = max(trauma-delta*traumaReductionRate,0)
	time += delta
	rotation_degrees.x = initialRotation.x + maxX * getShakeIntensity() * getNoiseFromSeed(343)
	rotation_degrees.y = initialRotation.y + maxY * getShakeIntensity() * getNoiseFromSeed(123)
	rotation_degrees.z = initialRotation.z + maxZ * getShakeIntensity() * getNoiseFromSeed(234)
	#Rotate head based on camera movement
	headPivot.rotation.y = cameraPivot.rotation.y
	headPivot.rotation.x = -camera.rotation.x
	if trauma == 0.0:
		headPivot.rotation.z = 0.0
		headBinoculars.rotation.z = 0.0
	sprintBar.value = sprintEnergy
	

func showBacklights() -> void:
	backlightL.show()
	backlightR.show()

func hideBacklights() -> void:
	backlightL.hide()
	backlightR.hide()




func useSprintEnergy(delta: float):
	sprintEnergy = clamp(sprintEnergy - sprintEnergyUse * delta, 0, 100)

func setRightLeftLean(direction: int, strength: float, delta: float) -> void:
	if direction > 0 and rightLeftLean < 0:
		rightLeftLean = 0
	elif direction < 0 and rightLeftLean > 0:
		rightLeftLean = 0
	rightLeftLean = clamp(rightLeftLean + strength * delta * direction,-1,1) 

func getAngleBetweenVectors(a: Vector3, b: Vector3) -> float:
	if a.length() == 0 or b. length() == 0:
		return 0
	return acos((a.dot(b)/(a.length()*b.length())))

func getDistance(a: Node3D, b: Node3D) -> float:
	var distanceVector: Vector3
	distanceVector = b.global_position - a.global_position
	return distanceVector.length()

func clampVectorLength(Vector: Vector3, minLength: float, maxLength: float) -> Vector3:
	#scales Vector up/ down to the max/ min length givin. If the Vector has a length of 0 it will be returned without being scaled.
	if Vector.length() == 0: return Vector
	if Vector.length() < minLength:
		return Vector * minLength / Vector.length()
	elif Vector.length() > maxLength:
		return Vector * maxLength / Vector.length()
	return Vector

func onCollision() -> void:
	trauma = 1

func addTrauma(traumaAmount: float):
	trauma = clamp(trauma+traumaAmount,0,1)

func getShakeIntensity() -> float:
	return shakeIntensety * trauma * trauma

func getNoiseFromSeed(seed_: int) -> float:
	noise.seed = seed_
	return noise.get_noise_1d(time*noiseSpeed)

func _input(event: InputEvent) -> void: #Camera movement with mouse
	if event is InputEventMouseMotion && Input.mouse_mode == 2:
		camera.rotation.x -= clamp(deg_to_rad(event.relative.y * mouseSensetivity),-180,180)
		cameraPivot.rotation.y -= deg_to_rad(event.relative.x * mouseSensetivity)
		facingDirection = facingDirection.rotated(deg_to_rad(event.relative.x * mouseSensetivity))
		
		camera.rotation_degrees.x = clamp(camera.rotation_degrees.x, -70, 70)
		cameraPivot.rotation.z = 0

func _on_hurt_box_hit_taken(attack: Attack) -> void:
	if invoulnerable: return
	
	trauma = attack.trauma
	health -= attack.damage
	if health <= 0.0:
		die()
	invoulnerable = true

func die() -> void:
	Multiplayer.alivePlayerDict.erase(int(name))
	headBinoculars.show()
	headPivot.position = Vector3(0,0.382,0.063)
	headPivot.rotation = Vector3(0,0,0)
	$"pivot/pivotRightLeg/pivotLeftLeg/body/Grabby Arms_L".rotation.x = deg_to_rad(90) 
	$"pivot/pivotRightLeg/pivotLeftLeg/body/Grabby Arms_R".rotation.x = deg_to_rad(90)
	var spectator = spectatorScene.instantiate()
	spectatorParent.add_child(spectator)
	camera.current = false
	alive = false