scripts/PlayerDriver.gd - master - ulupapi/Race_game

scripts/PlayerDriver.gd
88 строк3 KB
ulupapi
Game
26 дек 2025, 19:34
26 дек 2025, 19:347574b6d
# res://scripts/PlayerDriver.gd
extends Node
class_name PlayerDriver

@export var car_path: NodePath
@export var max_speed_kph: float = 320.0
@export var accel_rate: float = 12.0
@export var brake_rate: float = 28.0
@export var coast_drag: float = 2.5

@export var lateral_speed_mps: float = 6.0
@export var auto_center_rate: float = 0.7

var car: RaceCar = null
var v_desired: float = 0.0

func _enter_tree() -> void:
	_add_key(&"accelerate", KEY_W);      _add_key(&"accelerate", KEY_UP)
	_add_key(&"brake", KEY_S);           _add_key(&"brake", KEY_DOWN)
	_add_key(&"left", KEY_A);            _add_key(&"left", KEY_LEFT)
	_add_key(&"right", KEY_D);           _add_key(&"right", KEY_RIGHT)
	_add_key(&"car_start", KEY_SPACE)    # дублируем старт

func _ready() -> void:
	if car_path != NodePath(""):
		car = get_node_or_null(car_path) as RaceCar
	else:
		var n: Node = get_parent()
		while n != null and car == null:
			if n is RaceCar: car = n as RaceCar
			else: n = n.get_parent()
	if car == null:
		push_error("[PlayerDriver] RaceCar not found. Set Car Path.")
		set_process(false); set_physics_process(false)
		return
	v_desired = 0.0

func _physics_process(dt: float) -> void:
	if car == null:
		return

	var max_v: float = max_speed_kph / 3.6
	var accel: bool = Input.is_action_pressed(&"accelerate")
	var brake: bool = Input.is_action_pressed(&"brake")

	# автостарт по первому газу
	if accel and not car.is_started():
		car.start_drive()

	if accel and not brake:
		v_desired += accel_rate * dt
	elif brake and not accel:
		v_desired -= brake_rate * dt
	else:
		v_desired -= coast_drag * dt

	v_desired = clamp(v_desired, 0.0, max_v)

	# игрок — всегда «владелец» скорости
	if car.has_method("set_target_speed_from_player"):
		car.set_target_speed_from_player(v_desired)
	else:
		car.set_target_speed_mps(v_desired)

	# Поперечное смещение по A/D
	var steer: float = 0.0
	if Input.is_action_pressed(&"left"):  steer -= 1.0
	if Input.is_action_pressed(&"right"): steer += 1.0

	var h: float = car.h_offset
	if steer != 0.0:
		h += steer * lateral_speed_mps * dt
	else:
		# мягкий возврат к центру
		if h > 0.0:      h = max(0.0, h - auto_center_rate * dt)
		elif h < 0.0:    h = min(0.0, h + auto_center_rate * dt)

	# ограничение по ширине берём из машины
	var lim: float = car.lateral_limit_m
	car.h_offset = clamp(h, -lim, lim)

# ---- helpers ----
func _add_key(action: StringName, code: int) -> void:
	if not InputMap.has_action(action):
		InputMap.add_action(action)
	var ev := InputEventKey.new()
	ev.physical_keycode = code
	InputMap.action_add_event(action, ev)