extends Spatial

onready var camera = get_node("Camera")

const DISTANCE_MOD = 0.2
const FOV_MOD = 0.2

var _look_at_vec = Vector3(0, 0, -1)
var _x_axis = Vector3(1, 0, 0)

func _ready():
	var cam_rot = camera.rotation_degrees
	_look_at_vec = _look_at_vec.rotated(Vector3(0, 1, 0), cam_rot.y * PI/180)
	_x_axis = _x_axis.rotated(Vector3(0, 1, 0), cam_rot.y * PI/180)
	_look_at_vec = _look_at_vec.rotated(_x_axis, cam_rot.x * PI/180)


func _process(delta: float) -> void:
	var player1 = get_parent().get_child(3)
	var player2 = get_parent().get_child(4)
	
	if not player1 and player2: return
	
	var center = player2.transform.origin + (player1.transform.origin - player2.transform.origin) / 2.0
	var distance = (player1.transform.origin - player2.transform.origin).length()
	
	camera.fov = distance * FOV_MOD + 60.0
	
	transform.origin = center - _look_at_vec * distance * DISTANCE_MOD