移除错误的玩家预制体
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using UnityEngine;
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using UnityEngine.InputSystem;
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/// <summary>
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/// Capsule player: camera-relative movement, jump, gravity and mouse look.
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/// Input comes from the project asset Assets/InputSystem_Actions.inputactions
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/// ("Player" map: Move / Jump / Sprint).
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/// </summary>
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[RequireComponent(typeof(CharacterController))]
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public class PlayerController : MonoBehaviour
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{
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[Header("Input")]
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[Tooltip("Optional: the project's InputSystem_Actions asset. Actions are resolved by name from it.")]
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[SerializeField] private InputActionAsset actionsAsset;
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[Tooltip("Optional explicit references. Take priority over actionsAsset when set.")]
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[SerializeField] private InputActionReference moveAction;
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[SerializeField] private InputActionReference jumpAction;
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[SerializeField] private InputActionReference sprintAction;
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private InputAction _move;
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private InputAction _jump;
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private InputAction _sprint;
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[Header("Movement")]
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[SerializeField] private float walkSpeed = 5f;
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[SerializeField] private float sprintMultiplier = 1.8f;
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[SerializeField] private float acceleration = 14f;
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[SerializeField] private float rotationSpeed = 14f;
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[SerializeField] private float jumpHeight = 1.4f;
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[Header("Gravity")]
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[SerializeField] private float gravity = -22f;
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[SerializeField] private float groundedForce = -2f;
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[Tooltip("Extra ground probe at the feet, in addition to CharacterController.isGrounded.")]
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[SerializeField] private float groundCheckRadius = 0.12f;
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[Tooltip("Probe height relative to the transform origin. The capsule's feet are at y = 0.")]
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[SerializeField] private float groundCheckOffset = 0.12f;
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[SerializeField] private LayerMask groundMask = ~0;
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[Header("Camera")]
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[SerializeField] private Transform cameraPivot;
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[Tooltip("Create a third-person camera at runtime when the scene has no Main Camera.")]
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[SerializeField] private bool createCameraIfMissing = true;
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[SerializeField] private bool controlCursor = true;
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[SerializeField] private float lookSensitivity = 0.12f;
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[SerializeField] private float pitchMin = -35f;
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[SerializeField] private float pitchMax = 70f;
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[SerializeField] private float cameraDistance = 5f;
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[SerializeField] private float cameraHeight = 1.2f;
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[SerializeField] private float cameraSideOffset = 0.6f;
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private CharacterController _controller;
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private Vector3 _planarVelocity;
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private float _verticalVelocity;
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private bool _grounded;
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private float _yaw;
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private float _pitch = 15f;
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private Camera _camera;
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public bool IsGrounded { get { return _grounded; } }
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public float CurrentSpeed { get { return _planarVelocity.magnitude; } }
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private void Awake()
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{
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_controller = GetComponent<CharacterController>();
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_yaw = transform.eulerAngles.y;
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ResolveActions();
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EnableActions(true);
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}
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/// <summary>
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/// Prefers explicit InputActionReference fields, otherwise resolves
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/// "Player/Move", "Player/Jump" and "Player/Sprint" from the actions asset.
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/// </summary>
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private void ResolveActions()
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{
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_move = moveAction != null ? moveAction.action : null;
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_jump = jumpAction != null ? jumpAction.action : null;
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_sprint = sprintAction != null ? sprintAction.action : null;
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if (actionsAsset == null) return;
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if (_move == null) _move = actionsAsset.FindAction("Player/Move", false);
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if (_jump == null) _jump = actionsAsset.FindAction("Player/Jump", false);
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if (_sprint == null) _sprint = actionsAsset.FindAction("Player/Sprint", false);
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}
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private void OnEnable()
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{
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EnableActions(true);
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if (controlCursor)
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{
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Cursor.lockState = CursorLockMode.Locked;
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Cursor.visible = false;
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}
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}
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private void OnDisable()
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{
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if (controlCursor)
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{
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Cursor.lockState = CursorLockMode.None;
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Cursor.visible = true;
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}
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}
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private void EnableActions(bool enable)
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{
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SetEnabled(_move, enable);
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SetEnabled(_jump, enable);
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SetEnabled(_sprint, enable);
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}
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private static void SetEnabled(InputAction action, bool enable)
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{
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if (action == null) return;
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if (enable) action.Enable();
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else action.Disable();
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}
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private void Update()
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{
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ReadLook();
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ReadMove();
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ApplyGravityAndJump();
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Move();
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UpdateCamera();
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}
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private void ReadLook()
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{
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if (Mouse.current == null) return;
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Vector2 delta = Mouse.current.delta.ReadValue() * lookSensitivity;
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_yaw += delta.x;
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_pitch = Mathf.Clamp(_pitch - delta.y, pitchMin, pitchMax);
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}
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private void ReadMove()
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{
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Vector2 input = _move != null ? _move.ReadValue<Vector2>() : Vector2.zero;
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Quaternion yawRotation = Quaternion.Euler(0f, _yaw, 0f);
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Vector3 desired = yawRotation * new Vector3(input.x, 0f, input.y);
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if (desired.sqrMagnitude > 1f) desired.Normalize();
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float speed = walkSpeed;
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if (_sprint != null && _sprint.IsPressed())
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speed *= sprintMultiplier;
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_planarVelocity = Vector3.MoveTowards(_planarVelocity, desired * speed, acceleration * Time.deltaTime);
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}
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private void ApplyGravityAndJump()
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{
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// CharacterController.isGrounded is the authoritative check (its capsule
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// matches the visual): the extra sphere probe only helps on slopes/steps.
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Vector3 origin = transform.position + Vector3.up * groundCheckOffset;
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bool probeHit = Physics.CheckSphere(origin, groundCheckRadius, groundMask, QueryTriggerInteraction.Ignore);
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_grounded = _controller.isGrounded || probeHit;
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if (_grounded && _verticalVelocity < 0f) _verticalVelocity = groundedForce;
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bool wantsJump = _jump != null && _jump.WasPressedThisFrame();
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if (wantsJump && _grounded)
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_verticalVelocity = Mathf.Sqrt(jumpHeight * -2f * gravity);
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_verticalVelocity += gravity * Time.deltaTime;
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}
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private void Move()
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{
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Vector3 motion = _planarVelocity + Vector3.up * _verticalVelocity;
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_controller.Move(motion * Time.deltaTime);
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if (_planarVelocity.sqrMagnitude > 0.05f)
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{
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Quaternion target = Quaternion.LookRotation(_planarVelocity.normalized, Vector3.up);
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transform.rotation = Quaternion.Slerp(transform.rotation, target, rotationSpeed * Time.deltaTime);
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}
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}
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private void UpdateCamera()
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{
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if (_camera == null)
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{
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_camera = Camera.main;
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if (_camera == null && createCameraIfMissing)
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_camera = CreateFallbackCamera();
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if (_camera == null) return;
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}
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Transform pivot = cameraPivot != null ? cameraPivot : transform;
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Vector3 pivotPoint = pivot.position + Vector3.up * cameraHeight + pivot.right * cameraSideOffset;
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Quaternion rotation = Quaternion.Euler(_pitch, _yaw, 0f);
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Vector3 position = pivotPoint + rotation * new Vector3(0f, 0f, -cameraDistance);
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_camera.transform.SetPositionAndRotation(position, rotation);
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}
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/// <summary>
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/// Builds a third-person camera at runtime so the prefab is playable even in
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/// a scene that has no camera. Only used when not overridden by an existing Main Camera.
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/// </summary>
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private static Camera CreateFallbackCamera()
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{
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GameObject cameraObject = new GameObject("PlayerCamera");
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cameraObject.tag = "MainCamera";
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Camera camera = cameraObject.AddComponent<Camera>();
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camera.fieldOfView = 60f;
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camera.nearClipPlane = 0.1f;
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camera.farClipPlane = 1000f;
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cameraObject.AddComponent<AudioListener>();
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return camera;
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}
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private void OnDrawGizmosSelected()
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{
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Gizmos.color = Color.yellow;
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Gizmos.DrawWireSphere(transform.position + Vector3.up * groundCheckOffset, groundCheckRadius);
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}}
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