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226 lines
7.7 KiB
C#
226 lines
7.7 KiB
C#
using UnityEngine;
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#if ENABLE_INPUT_SYSTEM
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using UnityEngine.InputSystem;
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#endif
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namespace StarterAssets
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{
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[RequireComponent(typeof(CharacterController))]
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#if ENABLE_INPUT_SYSTEM
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[RequireComponent(typeof(PlayerInput))]
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#endif
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public class FirstPersonController : MonoBehaviour
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{
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public float MoveSpeed = 4.0f;
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public float SprintSpeed = 6.0f;
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public float RotationSpeed = 1.0f;
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public float SpeedChangeRate = 10.0f;
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public float JumpHeight = 1.2f;
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public float Gravity = -15.0f;
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public float JumpTimeout = 0.1f;
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public float FallTimeout = 0.15f;
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public bool Grounded = true;
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public float GroundedOffset = -0.14f;
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public float GroundedRadius = 0.5f;
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public LayerMask GroundLayers;
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public GameObject CinemachineCameraTarget;
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public float TopClamp = 90.0f;
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public float BottomClamp = -90.0f;
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private float _cinemachineTargetPitch;
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private float _speed;
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private float _rotationVelocity;
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private float _verticalVelocity;
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private float _terminalVelocity = 53.0f;
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private float _jumpTimeoutDelta;
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private float _fallTimeoutDelta;
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#if ENABLE_INPUT_SYSTEM
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private PlayerInput _playerInput;
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#endif
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private CharacterController _controller;
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private StarterAssetsInputs _input;
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private GameObject _mainCamera;
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private const float _threshold = 0.01f;
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private bool isClimbing = false;
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public float LadderClimbSpeed = 3.0f;
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private bool IsCurrentDeviceMouse
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{
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get
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{
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#if ENABLE_INPUT_SYSTEM
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return _playerInput.currentControlScheme == "KeyboardMouse";
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#else
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return false;
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#endif
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}
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}
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private void Awake()
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{
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if (_mainCamera == null)
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{
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_mainCamera = GameObject.FindGameObjectWithTag("MainCamera");
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}
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}
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private void Start()
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{
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_controller = GetComponent<CharacterController>();
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_input = GetComponent<StarterAssetsInputs>();
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#if ENABLE_INPUT_SYSTEM
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_playerInput = GetComponent<PlayerInput>();
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#else
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Debug.LogError("Starter Assets package is missing dependencies. Please use Tools/Starter Assets/Reinstall Dependencies to fix it");
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#endif
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_jumpTimeoutDelta = JumpTimeout;
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_fallTimeoutDelta = FallTimeout;
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}
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private void Update()
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{
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if (isClimbing)
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{
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LadderClimb();
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}
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else
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{
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JumpAndGravity();
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GroundedCheck();
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Move();
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}
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}
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private void LateUpdate()
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{
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CameraRotation();
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}
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private void GroundedCheck()
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{
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Vector3 spherePosition = new Vector3(transform.position.x, transform.position.y - GroundedOffset, transform.position.z);
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Grounded = Physics.CheckSphere(spherePosition, GroundedRadius, GroundLayers, QueryTriggerInteraction.Ignore);
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}
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private void CameraRotation()
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{
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if (_input.look.sqrMagnitude >= _threshold)
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{
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float deltaTimeMultiplier = IsCurrentDeviceMouse ? 1.0f : Time.deltaTime;
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_cinemachineTargetPitch += _input.look.y * RotationSpeed * deltaTimeMultiplier;
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_rotationVelocity = _input.look.x * RotationSpeed * deltaTimeMultiplier;
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_cinemachineTargetPitch = ClampAngle(_cinemachineTargetPitch, BottomClamp, TopClamp);
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CinemachineCameraTarget.transform.localRotation = Quaternion.Euler(_cinemachineTargetPitch, 0.0f, 0.0f);
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transform.Rotate(Vector3.up * _rotationVelocity);
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}
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}
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private void Move()
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{
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float targetSpeed = _input.sprint ? SprintSpeed : MoveSpeed;
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if (_input.move == Vector2.zero)
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targetSpeed = 0.0f;
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float currentHorizontalSpeed = new Vector3(_controller.velocity.x, 0.0f, _controller.velocity.z).magnitude;
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float speedOffset = 0.1f;
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float inputMagnitude = _input.analogMovement ? _input.move.magnitude : 1f;
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if (currentHorizontalSpeed < targetSpeed - speedOffset || currentHorizontalSpeed > targetSpeed + speedOffset)
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{
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_speed = Mathf.Lerp(currentHorizontalSpeed, targetSpeed * inputMagnitude, Time.deltaTime * SpeedChangeRate);
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_speed = Mathf.Round(_speed * 1000f) / 1000f;
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}
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else
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{
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_speed = targetSpeed;
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}
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Vector3 inputDirection = new Vector3(_input.move.x, 0.0f, _input.move.y).normalized;
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if (_input.move != Vector2.zero)
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{
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inputDirection = transform.right * _input.move.x + transform.forward * _input.move.y;
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}
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_controller.Move(inputDirection.normalized * (_speed * Time.deltaTime) + new Vector3(0.0f, _verticalVelocity, 0.0f) * Time.deltaTime);
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}
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private void JumpAndGravity()
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{
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if (Grounded)
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{
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_fallTimeoutDelta = FallTimeout;
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if (_verticalVelocity < 0.0f)
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{
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_verticalVelocity = -2f;
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}
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if (_input.jump && _jumpTimeoutDelta <= 0.0f)
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{
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_verticalVelocity = Mathf.Sqrt(JumpHeight * -2f * Gravity);
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}
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if (_jumpTimeoutDelta >= 0.0f)
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{
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_jumpTimeoutDelta -= Time.deltaTime;
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}
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}
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else
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{
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_jumpTimeoutDelta = JumpTimeout;
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if (_fallTimeoutDelta >= 0.0f)
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{
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_fallTimeoutDelta -= Time.deltaTime;
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}
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_input.jump = false;
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}
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if (_verticalVelocity < _terminalVelocity)
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{
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_verticalVelocity += Gravity * Time.deltaTime;
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}
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}
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private static float ClampAngle(float lfAngle, float lfMin, float lfMax)
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{
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if (lfAngle < -360f)
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lfAngle += 360f;
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if (lfAngle > 360f)
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lfAngle -= 360f;
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return Mathf.Clamp(lfAngle, lfMin, lfMax);
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}
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private void LadderClimb()
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{
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if (_input.jump || Mathf.Abs(_input.move.x) > 0.1f)
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{
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isClimbing = false;
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_controller.slopeLimit = 45f;
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_controller.Move(transform.forward * MoveSpeed * Time.deltaTime);
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return;
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}
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float climbVelocity = _input.move.y * LadderClimbSpeed;
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Vector3 moveVector = new Vector3(0, climbVelocity, 0);
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_controller.Move(moveVector * Time.deltaTime);
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}
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private void OnTriggerEnter(Collider other)
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{
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if (other.CompareTag("Ladder"))
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{
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isClimbing = true;
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_controller.slopeLimit = 90f;
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}
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}
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private void OnTriggerExit(Collider other)
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{
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if (other.CompareTag("Ladder"))
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{
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isClimbing = false;
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_controller.slopeLimit = 45f;
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}
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}
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private void OnDrawGizmosSelected()
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{
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Color transparentGreen = new Color(0.0f, 1.0f, 0.0f, 0.35f);
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Color transparentRed = new Color(1.0f, 0.0f, 0.0f, 0.35f);
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Gizmos.color = Grounded ? transparentGreen : transparentRed;
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Gizmos.DrawSphere(new Vector3(transform.position.x, transform.position.y - GroundedOffset, transform.position.z), GroundedRadius);
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}
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}
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}
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