AIController2D.gd

extends AIController2D


func _ready():
	reset()


func _physics_process(_delta):
	n_steps += 1
	if n_steps > reset_after:
		needs_reset = true
		done = true

	if needs_reset:
		needs_reset = false
		reset()


func get_reward():
	return reward


func get_obs():
	var relative = to_local(_player.get_fruit_position())
	var distance = relative.length() / 1500.0
	relative = relative.normalized()
	var result := []
	result.append(((position.x / _player.WIDTH) - 0.5) * 2)
	result.append(((position.y / _player.HEIGHT) - 0.5) * 2)
	result.append(relative.x)
	result.append(relative.y)
	result.append(distance)
	var raycast_obs = _player.raycast_sensor.get_observation()
	result.append_array(raycast_obs)

	return {
		"obs": result,
	}


func set_action(action):
	_player._action.x = action["move"][0]
	_player._action.y = action["move"][1]


func get_action_space():
	return {"move": {"size": 2, "action_type": "continuous"}}