Code Review
- SmoothFollow.cs
- Utility /
- Standard Assets /
- Assets /
- project /
1 using UnityEngine;
2
3 namespace UnityStandardAssets.Utility
4 {
5 public class SmoothFollow : MonoBehaviour
6 {
7
8 // The target we are following
9 [SerializeField]
10 private Transform target;
11 // The distance in the x-z plane to the target
12 [SerializeField]
13 private float distance = 10.0f;
14 // the height we want the camera to be above the target
15 [SerializeField]
16 private float height = 5.0f;
17
18 [SerializeField]
19 private float rotationDamping;
20 [SerializeField]
21 private float heightDamping;
22
23 // Use this for initialization
24 void Start() { }
25
26 // Update is called once per frame
27 void LateUpdate()
28 {
29 // Early out if we don't have a target
30 if (!target)
31 return;
32
33 // Calculate the current rotation angles
34 var wantedRotationAngle = target.eulerAngles.y;
35 var wantedHeight = target.position.y + height;
36
37 var currentRotationAngle = transform.eulerAngles.y;
38 var currentHeight = transform.position.y;
39
40 // Damp the rotation around the y-axis
41 currentRotationAngle = Mathf.LerpAngle(currentRotationAngle, wantedRotationAngle, rotationDamping * Time.deltaTime);
42
43 // Damp the height
44 currentHeight = Mathf.Lerp(currentHeight, wantedHeight, heightDamping * Time.deltaTime);
45
46 // Convert the angle into a rotation
47 var currentRotation = Quaternion.Euler(0, currentRotationAngle, 0);
48
49 // Set the position of the camera on the x-z plane to:
50 // distance meters behind the target
51 transform.position = target.position;
52 transform.position -= currentRotation * Vector3.forward * distance;
53
54 // Set the height of the camera
55 transform.position = new Vector3(transform.position.x ,currentHeight , transform.position.z);
56
57 // Always look at the target
58 transform.LookAt(target);
59 }
60 }
61 }
2
3 namespace UnityStandardAssets.Utility
4 {
5 public class SmoothFollow : MonoBehaviour
6 {
7
8 // The target we are following
9 [SerializeField]
10 private Transform target;
11 // The distance in the x-z plane to the target
12 [SerializeField]
13 private float distance = 10.0f;
14 // the height we want the camera to be above the target
15 [SerializeField]
16 private float height = 5.0f;
17
18 [SerializeField]
19 private float rotationDamping;
20 [SerializeField]
21 private float heightDamping;
22
23 // Use this for initialization
24 void Start() { }
25
26 // Update is called once per frame
27 void LateUpdate()
28 {
29 // Early out if we don't have a target
30 if (!target)
31 return;
32
33 // Calculate the current rotation angles
34 var wantedRotationAngle = target.eulerAngles.y;
35 var wantedHeight = target.position.y + height;
36
37 var currentRotationAngle = transform.eulerAngles.y;
38 var currentHeight = transform.position.y;
39
40 // Damp the rotation around the y-axis
41 currentRotationAngle = Mathf.LerpAngle(currentRotationAngle, wantedRotationAngle, rotationDamping * Time.deltaTime);
42
43 // Damp the height
44 currentHeight = Mathf.Lerp(currentHeight, wantedHeight, heightDamping * Time.deltaTime);
45
46 // Convert the angle into a rotation
47 var currentRotation = Quaternion.Euler(0, currentRotationAngle, 0);
48
49 // Set the position of the camera on the x-z plane to:
50 // distance meters behind the target
51 transform.position = target.position;
52 transform.position -= currentRotation * Vector3.forward * distance;
53
54 // Set the height of the camera
55 transform.position = new Vector3(transform.position.x ,currentHeight , transform.position.z);
56
57 // Always look at the target
58 transform.LookAt(target);
59 }
60 }
61 }
