101 lines
3.4 KiB
C#
101 lines
3.4 KiB
C#
using UnityEngine;
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/// <summary>
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/// 用 UI 虚拟摇杆（移动轮盘）驱动角色移动，替代原来的点击地面移动。
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///
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/// 用法：挂在带 CharacterController 的角色上，把场景里的 <see cref="VirtualJoystick"/>
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/// 拖到 joystick 字段（在 Inspector / 预制体里接线，代码里不查找节点）。
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/// 摇杆方向默认按摄像机朝向换算成世界方向，推杆越满速度越快；只做水平移动，y 不变。
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/// </summary>
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[RequireComponent(typeof(CharacterController))]
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public class PlayerMoveController : MonoBehaviour
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{
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[Header("输入")]
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[Tooltip("移动轮盘；必须在 Inspector / 预制体里指定，留空角色不会移动")]
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[SerializeField] private VirtualJoystick joystick;
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[Tooltip("是否按摄像机朝向移动（关掉则按世界坐标轴移动）")]
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[SerializeField] private bool cameraRelative = true;
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[Tooltip("朝向参考的摄像机，留空用 Camera.main")]
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[SerializeField] private Transform cameraTransform;
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[Header("移动")]
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[Tooltip("满杆时的移动速度（单位/秒）")]
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[SerializeField] private float speed = 5f;
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[Tooltip("转向平滑速度，越大转得越快")]
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[SerializeField] private float turnSpeed = 12f;
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[Tooltip("输入平滑时间（0 = 立刻响应）")]
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[SerializeField] private float inputSmoothing = 0.05f;
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private CharacterController _controller;
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private Vector2 _smoothedInput;
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private Vector2 _smoothingVelocity;
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private void Awake()
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{
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_controller = GetComponent<CharacterController>();
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if (joystick == null)
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Debug.LogError("[PlayerMoveController] 没有指定移动轮盘（joystick），请在 Inspector / 预制体里拖入。", this);
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}
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private void Update()
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{
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Vector2 input = joystick != null ? joystick.Value : Vector2.zero;
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if (inputSmoothing > 0f)
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input = Vector2.SmoothDamp(_smoothedInput, input, ref _smoothingVelocity, inputSmoothing);
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_smoothedInput = input;
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if (input.sqrMagnitude <= 0.0001f)
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return;
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Vector3 direction = ToWorldDirection(input);
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if (direction.sqrMagnitude <= 0.0001f)
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return;
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_controller.Move(direction * (speed * input.magnitude * Time.deltaTime));
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transform.rotation = Quaternion.Slerp(
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transform.rotation,
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Quaternion.LookRotation(direction),
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Time.deltaTime * turnSpeed);
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}
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/// <summary>把摇杆的二维输入换算成世界方向（水平面内，已归一化）。</summary>
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private Vector3 ToWorldDirection(Vector2 input)
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{
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Vector3 forward = Vector3.forward;
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Vector3 right = Vector3.right;
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if (cameraRelative)
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{
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Transform cam = cameraTransform != null
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? cameraTransform
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: (Camera.main != null ? Camera.main.transform : null);
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if (cam != null)
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{
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forward = cam.forward;
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forward.y = 0f;
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right = cam.right;
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right.y = 0f;
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if (forward.sqrMagnitude > 0.0001f) forward.Normalize();
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else forward = Vector3.forward;
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if (right.sqrMagnitude > 0.0001f) right.Normalize();
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else right = Vector3.right;
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}
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}
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Vector3 dir = right * input.x + forward * input.y;
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if (dir.sqrMagnitude > 1f)
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dir.Normalize();
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return dir;
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}
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}
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