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Unity - Smoothed mouse look for an FPS
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| using System.Collections; | |
| using System.Collections.Generic; | |
| using UnityEngine; | |
| public class SmoothMouseLook : MonoBehaviour | |
| { | |
| private List<float> _xBuffer = new List<float>(); | |
| private List<float> _yBuffer = new List<float>(); | |
| private int _bufferIndex; | |
| private float _targetRotX; // Used because _rotatorX needs its rotation assigned (instead of added). | |
| [Header("Settings")] | |
| public float _sensitivityX = 1.5f; | |
| public float _sensitivityY = 1.5f; | |
| [Space] | |
| public float _minX = -90f; | |
| public float _maxX = 90f; | |
| [Space] | |
| [Tooltip("The more steps, the smoother it will be.")] | |
| public int _averageFromThisManySteps = 3; | |
| [Header("References")] | |
| [Tooltip("Object to be rotated when mouse moves up/down. Usually your Camera.")] | |
| public Transform _rotatorX; | |
| [Tooltip("Object to be rotated when mouse moves left/right. Usually your Player root GameObject for an FPS.")] | |
| public Transform _rotatorY; | |
| private void Start() | |
| { | |
| // Matches whatever your rotator is set to | |
| _targetRotX = -_rotatorX.localEulerAngles.x; | |
| } | |
| private void LateUpdate() | |
| { | |
| var mouseDeltaX = Input.GetAxisRaw("Mouse X") * _sensitivityX; | |
| var mouseDeltaY = Input.GetAxisRaw("Mouse Y") * _sensitivityY; | |
| var (AveragedX, AveragedY) = GetAverages(mouseDeltaX, mouseDeltaY, _averageFromThisManySteps); | |
| // Clamp X | |
| _targetRotX += AveragedY; | |
| _targetRotX = Mathf.Clamp(_targetRotX, _minX, _maxX); | |
| // Rotate | |
| _rotatorX.localRotation = Quaternion.Euler(-_targetRotX, 0f, 0f); | |
| _rotatorY.Rotate(0f, AveragedX, 0f, Space.World); | |
| } | |
| (float AveragedX, float AveragedY) GetAverages(float mouseDeltaX, float mouseDeltaY, int steps = 3) | |
| { | |
| // Add entries until reached max number of steps, then mutate current entries only | |
| if (_xBuffer.Count < steps) | |
| { | |
| _xBuffer.Add(mouseDeltaX); | |
| _yBuffer.Add(mouseDeltaY); | |
| _bufferIndex = steps - 1; | |
| return (0f, 0f); | |
| } | |
| // Remove entries if max steps is reduced | |
| else if (_xBuffer.Count > steps) | |
| { | |
| Remove(); | |
| void Remove() | |
| { | |
| if (_xBuffer.Count > steps) | |
| { | |
| _xBuffer.RemoveAt(0); | |
| _yBuffer.RemoveAt(0); | |
| Remove(); | |
| } | |
| } | |
| return (0f, 0f); | |
| } | |
| // Mutate entries | |
| else | |
| { | |
| _xBuffer[_bufferIndex] = mouseDeltaX; | |
| _yBuffer[_bufferIndex] = mouseDeltaY; | |
| _bufferIndex++; | |
| if (_bufferIndex >= steps) | |
| _bufferIndex = 0; | |
| } | |
| // Average | |
| var totalX = 0f; | |
| var totalY = 0f; | |
| for (int i = 0; i < steps - 1; i++) | |
| { | |
| totalX += _xBuffer[i]; | |
| totalY += _yBuffer[i]; | |
| } | |
| return (totalX / steps, totalY / steps); | |
| } | |
| } |
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