extends EnemyState
class_name EnemyIdle


var move_direction : Vector3
var scan_direction : float

var wander_time : float
var scan_time : float

const WANDER_AMT = 50
const TURRET_TURN_AMT : float = 180.0

func randomize_wander():
	var x = randf_range(-WANDER_AMT,WANDER_AMT)
	var z = randf_range(-WANDER_AMT,WANDER_AMT)
	move_direction = enemy.global_position + Vector3(x,0,z)
	enemy.nav_agent.set_target_position(move_direction)
	wander_time = randf_range(1,3)

func randomize_turret_scan():
	scan_direction = randf_range(-TURRET_TURN_AMT,TURRET_TURN_AMT)
	scan_time = randf_range(1,3)

func _Enter():
	randomize_wander()

func Update(delta: float):
	if wander_time > 0:
		wander_time -= delta
	else:
		randomize_wander()
	
	if scan_time > 0:
		scan_time -= delta
	else:
		randomize_turret_scan()

func Physics_Update(delta : float):
	if enemy:
		var destination = enemy.nav_agent.get_next_path_position()
		var local_destination = destination - enemy.global_position
		var direction = local_destination.normalized()
		if enemy.global_position.distance_to(local_destination) > 1:
			enemy.velocity = direction * move_speed
			enemy.spider_look_next.look_at(destination)
			var look_target = enemy.spider_look_next.global_rotation.y
			enemy.global_rotation.y = lerp(enemy.global_rotation.y,look_target,delta * 3)
		
		enemy.turret.rotation.y = lerp(enemy.turret.rotation.y,deg_to_rad(scan_direction),delta)