Unity實現場景漫遊相機
阿新 • • 發佈:2020-10-27
本文例項為大家分享了Unity實現場景漫遊相機的具體程式碼,供大家參考,具體內容如下
前言
拿到場景後總喜歡在場景裡面玩一段時間,那這個指令碼就是你的不二選擇
程式碼里加了註釋,改起來也很方便。
使用方法
把指令碼拖拽到場景相機上,開箱即用。
- WASD前後左右移動
- QE為上下
- Shift加速
- 滑鼠右鍵按住旋轉視角
- ESC退出遊戲
原始碼
#if ENABLE_INPUT_SYSTEM && ENABLE_INPUT_SYSTEM_PACKAGE #define USE_INPUT_SYSTEM using UnityEngine.InputSystem; using UnityEngine.InputSystem.Controls; #endif using UnityEngine; public class SimpleCameraController : MonoBehaviour { #region 相機狀態 /// <summary> /// 相機狀態 /// </summary> class CameraState { public float yaw; public float pitch; public float roll; public float x; public float y; public float z; public void SetFromTransform(Transform t) { pitch = t.eulerAngles.x; yaw = t.eulerAngles.y; roll = t.eulerAngles.z; x = t.position.x; y = t.position.y; z = t.position.z; } public void Translate(Vector3 translation) { Vector3 rotatedTranslation = Quaternion.Euler(pitch,yaw,roll) * translation; x += rotatedTranslation.x; y += rotatedTranslation.y; z += rotatedTranslation.z; } public void LerpTowards(CameraState target,float positionLerpPct,float rotationLerpPct) { yaw = Mathf.Lerp(yaw,target.yaw,rotationLerpPct); pitch = Mathf.Lerp(pitch,target.pitch,rotationLerpPct); roll = Mathf.Lerp(roll,target.roll,rotationLerpPct); x = Mathf.Lerp(x,target.x,positionLerpPct); y = Mathf.Lerp(y,target.y,positionLerpPct); z = Mathf.Lerp(z,target.z,positionLerpPct); } public void UpdateTransform(Transform t) { t.eulerAngles = new Vector3(pitch,roll); t.position = new Vector3(x,y,z); } } #endregion CameraState m_TargetCameraState = new CameraState(); CameraState m_InterpolatingCameraState = new CameraState(); [Header("Movement Settings 移動設定")] [Tooltip("Exponential boost factor on translation,controllable by mouse wheel. 平移的指數增強因子,可通過滑鼠滾輪控制。")] public float boost = 3.5f; [Tooltip("Time it takes to interpolate camera position 99% of the way to the target. 將相機位置插值到目標位置99%所需的時間。"),Range(0.001f,1f)] public float positionLerpTime = 0.2f; [Header("Rotation Settings 旋轉設定")] [Tooltip("X = Change in mouse position. 改變滑鼠位置。\nY = Multiplicative factor for camera rotation. 相機旋轉的乘性因子。")] public AnimationCurve mouseSensitivityCurve = new AnimationCurve(new Keyframe(0f,0.5f,0f,5f),new Keyframe(1f,2.5f,0f)); [Tooltip("Time it takes to interpolate camera rotation 99% of the way to the target. 插值相機旋轉99%到目標所需的時間。"),1f)] public float rotationLerpTime = 0.01f; [Tooltip("Whether or not to invert our Y axis for mouse input to rotation. 是否將滑鼠輸入的Y軸反轉為旋轉。")] public bool invertY = false; void OnEnable() { m_TargetCameraState.SetFromTransform(transform); m_InterpolatingCameraState.SetFromTransform(transform); } Vector3 GetInputTranslationDirection() { Vector3 direction = new Vector3(); if (Input.GetKey(KeyCode.W)) { direction += Vector3.forward; } if (Input.GetKey(KeyCode.S)) { direction += Vector3.back; } if (Input.GetKey(KeyCode.A)) { direction += Vector3.left; } if (Input.GetKey(KeyCode.D)) { direction += Vector3.right; } if (Input.GetKey(KeyCode.Q)) { direction += Vector3.down; } if (Input.GetKey(KeyCode.E)) { direction += Vector3.up; } return direction; } void Update() { Vector3 translation = Vector3.zero; #if ENABLE_LEGACY_INPUT_MANAGER // Exit Sample 按下Esc鍵退出遊戲 if (Input.GetKey(KeyCode.Escape)) { Application.Quit(); #if UNITY_EDITOR UnityEditor.EditorApplication.isPlaying = false; #endif } // Hide and lock cursor when right mouse button pressed 按下滑鼠右鍵時隱藏並鎖定游標 if (Input.GetMouseButtonDown(1)) { Cursor.lockState = CursorLockMode.Locked; } // Unlock and show cursor when right mouse button released 鬆開滑鼠右鍵時解鎖並顯示游標 if (Input.GetMouseButtonUp(1)) { Cursor.visible = true; Cursor.lockState = CursorLockMode.None; } // Rotation 旋轉 if (Input.GetMouseButton(1)) { var mouseMovement = new Vector2(Input.GetAxis("Mouse X"),Input.GetAxis("Mouse Y") * (invertY ? 1 : -1)); var mouseSensitivityFactor = mouseSensitivityCurve.Evaluate(mouseMovement.magnitude); m_TargetCameraState.yaw += mouseMovement.x * mouseSensitivityFactor; m_TargetCameraState.pitch += mouseMovement.y * mouseSensitivityFactor; } // Translation 移動 translation = GetInputTranslationDirection() * Time.deltaTime; // Speed up movement when shift key held 按住shift鍵時加速移動 if (Input.GetKey(KeyCode.LeftShift)) { //原速度*10為按下Shift後的速度 translation *= 10.0f; } // Modify movement by a boost factor (defined in Inspector and modified in play mode through the mouse scroll wheel) 通過增強因子修改移動(在檢查器中定義,通過滑鼠滾輪在播放模式下修改) boost += Input.mouseScrollDelta.y * 0.2f; translation *= Mathf.Pow(2.0f,boost); #elif USE_INPUT_SYSTEM // TODO: make the new input system work 使新的輸入系統正常工作 #endif m_TargetCameraState.Translate(translation); // Framerate-independent interpolation 幀率無關插值 // Calculate the lerp amount,such that we get 99% of the way to our target in the specified time 計算lerp的數量,這樣我們就可以在指定的時間內到達目標的99% var positionLerpPct = 1f - Mathf.Exp((Mathf.Log(1f - 0.99f) / positionLerpTime) * Time.deltaTime); var rotationLerpPct = 1f - Mathf.Exp((Mathf.Log(1f - 0.99f) / rotationLerpTime) * Time.deltaTime); m_InterpolatingCameraState.LerpTowards(m_TargetCameraState,positionLerpPct,rotationLerpPct); m_InterpolatingCameraState.UpdateTransform(transform); } }
以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支援我們。