unity 自带插件 TextMesh Pro 中的 CameraController 脚本代码

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using UnityEngine;
using System.Collections;namespace TMPro.Examples
{public class CameraController : MonoBehaviour{public enum CameraModes { Follow, Isometric, Free }private Transform cameraTransform;private Transform dummyTarget;public Transform CameraTarget;public float FollowDistance = 30.0f;public float MaxFollowDistance = 100.0f;public float MinFollowDistance = 2.0f;public float ElevationAngle = 30.0f;public float MaxElevationAngle = 85.0f;public float MinElevationAngle = 0f;public float OrbitalAngle = 0f;public CameraModes CameraMode = CameraModes.Follow;public bool MovementSmoothing = true;public bool RotationSmoothing = false;private bool previousSmoothing;public float MovementSmoothingValue = 25f;public float RotationSmoothingValue = 5.0f;public float MoveSensitivity = 2.0f;private Vector3 currentVelocity = Vector3.zero;private Vector3 desiredPosition;private float mouseX;private float mouseY;private Vector3 moveVector;private float mouseWheel;// Controls for Touches on Mobile devices//private float prev_ZoomDelta;private const string event_SmoothingValue = "Slider - Smoothing Value";private const string event_FollowDistance = "Slider - Camera Zoom";void Awake(){if (QualitySettings.vSyncCount > 0)Application.targetFrameRate = 60;elseApplication.targetFrameRate = -1;if (Application.platform == RuntimePlatform.IPhonePlayer || Application.platform == RuntimePlatform.Android)Input.simulateMouseWithTouches = false;cameraTransform = transform;previousSmoothing = MovementSmoothing;}// Use this for initializationvoid Start(){if (CameraTarget == null){// If we don't have a target (assigned by the player, create a dummy in the center of the scene).dummyTarget = new GameObject("Camera Target").transform;CameraTarget = dummyTarget;}}// Update is called once per framevoid LateUpdate(){GetPlayerInput();// Check if we still have a valid targetif (CameraTarget != null){if (CameraMode == CameraModes.Isometric){desiredPosition = CameraTarget.position + Quaternion.Euler(ElevationAngle, OrbitalAngle, 0f) * new Vector3(0, 0, -FollowDistance);}else if (CameraMode == CameraModes.Follow){desiredPosition = CameraTarget.position + CameraTarget.TransformDirection(Quaternion.Euler(ElevationAngle, OrbitalAngle, 0f) * (new Vector3(0, 0, -FollowDistance)));}else{// Free Camera implementation}if (MovementSmoothing == true){// Using SmoothingcameraTransform.position = Vector3.SmoothDamp(cameraTransform.position, desiredPosition, ref currentVelocity, MovementSmoothingValue * Time.fixedDeltaTime);//cameraTransform.position = Vector3.Lerp(cameraTransform.position, desiredPosition, Time.deltaTime * 5.0f);}else{// Not using SmoothingcameraTransform.position = desiredPosition;}if (RotationSmoothing == true)cameraTransform.rotation = Quaternion.Lerp(cameraTransform.rotation, Quaternion.LookRotation(CameraTarget.position - cameraTransform.position), RotationSmoothingValue * Time.deltaTime);else{cameraTransform.LookAt(CameraTarget);}}}void GetPlayerInput(){moveVector = Vector3.zero;// Check Mouse Wheel Input prior to Shift Key so we can apply multiplier on Shift for ScrollingmouseWheel = Input.GetAxis("Mouse ScrollWheel");float touchCount = Input.touchCount;if (Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift) || touchCount > 0){mouseWheel *= 10;if (Input.GetKeyDown(KeyCode.I))CameraMode = CameraModes.Isometric;if (Input.GetKeyDown(KeyCode.F))CameraMode = CameraModes.Follow;if (Input.GetKeyDown(KeyCode.S))MovementSmoothing = !MovementSmoothing;// Check for right mouse button to change camera follow and elevation angleif (Input.GetMouseButton(1)){mouseY = Input.GetAxis("Mouse Y");mouseX = Input.GetAxis("Mouse X");if (mouseY > 0.01f || mouseY < -0.01f){ElevationAngle -= mouseY * MoveSensitivity;// Limit Elevation angle between min & max values.ElevationAngle = Mathf.Clamp(ElevationAngle, MinElevationAngle, MaxElevationAngle);}if (mouseX > 0.01f || mouseX < -0.01f){OrbitalAngle += mouseX * MoveSensitivity;if (OrbitalAngle > 360)OrbitalAngle -= 360;if (OrbitalAngle < 0)OrbitalAngle += 360;}}// Get Input from Mobile Deviceif (touchCount == 1 && Input.GetTouch(0).phase == TouchPhase.Moved){Vector2 deltaPosition = Input.GetTouch(0).deltaPosition;// Handle elevation changesif (deltaPosition.y > 0.01f || deltaPosition.y < -0.01f){ElevationAngle -= deltaPosition.y * 0.1f;// Limit Elevation angle between min & max values.ElevationAngle = Mathf.Clamp(ElevationAngle, MinElevationAngle, MaxElevationAngle);}// Handle left & right if (deltaPosition.x > 0.01f || deltaPosition.x < -0.01f){OrbitalAngle += deltaPosition.x * 0.1f;if (OrbitalAngle > 360)OrbitalAngle -= 360;if (OrbitalAngle < 0)OrbitalAngle += 360;}}// Check for left mouse button to select a new CameraTarget or to reset Follow positionif (Input.GetMouseButton(0)){Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);RaycastHit hit;if (Physics.Raycast(ray, out hit, 300, 1 << 10 | 1 << 11 | 1 << 12 | 1 << 14)){if (hit.transform == CameraTarget){// Reset Follow PositionOrbitalAngle = 0;}else{CameraTarget = hit.transform;OrbitalAngle = 0;MovementSmoothing = previousSmoothing;}}}if (Input.GetMouseButton(2)){if (dummyTarget == null){// We need a Dummy Target to anchor the CameradummyTarget = new GameObject("Camera Target").transform;dummyTarget.position = CameraTarget.position;dummyTarget.rotation = CameraTarget.rotation;CameraTarget = dummyTarget;previousSmoothing = MovementSmoothing;MovementSmoothing = false;}else if (dummyTarget != CameraTarget){// Move DummyTarget to CameraTargetdummyTarget.position = CameraTarget.position;dummyTarget.rotation = CameraTarget.rotation;CameraTarget = dummyTarget;previousSmoothing = MovementSmoothing;MovementSmoothing = false;}mouseY = Input.GetAxis("Mouse Y");mouseX = Input.GetAxis("Mouse X");moveVector = cameraTransform.TransformDirection(mouseX, mouseY, 0);dummyTarget.Translate(-moveVector, Space.World);}}// Check Pinching to Zoom in - out on Mobile deviceif (touchCount == 2){Touch touch0 = Input.GetTouch(0);Touch touch1 = Input.GetTouch(1);Vector2 touch0PrevPos = touch0.position - touch0.deltaPosition;Vector2 touch1PrevPos = touch1.position - touch1.deltaPosition;float prevTouchDelta = (touch0PrevPos - touch1PrevPos).magnitude;float touchDelta = (touch0.position - touch1.position).magnitude;float zoomDelta = prevTouchDelta - touchDelta;if (zoomDelta > 0.01f || zoomDelta < -0.01f){FollowDistance += zoomDelta * 0.25f;// Limit FollowDistance between min & max values.FollowDistance = Mathf.Clamp(FollowDistance, MinFollowDistance, MaxFollowDistance);}}// Check MouseWheel to Zoom in-outif (mouseWheel < -0.01f || mouseWheel > 0.01f){FollowDistance -= mouseWheel * 5.0f;// Limit FollowDistance between min & max values.FollowDistance = Mathf.Clamp(FollowDistance, MinFollowDistance, MaxFollowDistance);}}}
}