67 lines
2.1 KiB
C#
67 lines
2.1 KiB
C#
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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public class CameraTargetMove : MonoBehaviour
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{
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public Transform target;
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public Vector3 pivotOffset = Vector3.zero;
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public float distance = 10.0f;
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public float minDistance = 2f;
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public float maxDistance = 15f;
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public float zoomSpeed = 1f;
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public float xSpeed = 250.0f;
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public float ySpeed = 250.0f;
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public bool allowYTilt = true;
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public float yMinLimit = -90f;
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public float yMaxLimit = 90f;
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private float x = 0.0f;
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private float y = 0.0f;
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private float targetX = 0f;
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private float targetY = 0f;
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public float targetDistance = 0f;
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private void Start()
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{
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var angles = transform.eulerAngles;
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targetX = x = angles.x;
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targetY = y = ClampAngle(angles.y, yMinLimit, yMaxLimit);
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targetDistance = distance;
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}
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private void LateUpdate()
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{
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if (!target) return;
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var scroll = Input.GetAxis("Mouse ScrollWheel");
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if (scroll > 0.0f) targetDistance -= zoomSpeed;
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else if (scroll < 0.0f)
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targetDistance += zoomSpeed;
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targetDistance = Mathf.Clamp(targetDistance, minDistance, maxDistance);
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if (Input.GetMouseButton(1) || (Input.GetMouseButton(0) && (Input.GetKey(KeyCode.LeftControl) || Input.GetKey(KeyCode.RightControl))))
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{
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targetX += Input.GetAxis("Mouse X") * xSpeed * 0.02f;
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if (allowYTilt)
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{
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targetY -= Input.GetAxis("Mouse Y") * ySpeed * 0.02f;
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targetY = ClampAngle(targetY, yMinLimit, yMaxLimit);
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}
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}
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x = targetX;
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y = targetY;
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Quaternion rotation = Quaternion.Euler(y, x, 0);
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distance = targetDistance;
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Vector3 position = rotation * new Vector3(0.0f, 0.0f, -distance) + target.position + pivotOffset;
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transform.rotation = rotation;
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transform.position = position;
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}
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private static float ClampAngle(float angle, float min, float max)
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{
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if (angle < -360) angle += 360;
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if (angle > 360) angle -= 360;
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return Mathf.Clamp(angle, min, max);
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}
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}
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