over 8 years ago
Hi Nerds,
Here is the tutorial for creating a third person camera with dynamic wall collisions in Unity.
Demo: https://youtu.be/DPTWLs-zndI
Doc: https://1drv.ms/p/s!AvAlkrGEujhegijtt9rN5vqZys_u
Project: https://drive.google.com/open?id=0B9oh03OBnU50Ynh2ak1Rd2Z0Umc
Code Example:
using UnityEngine;using System.Collections;public class PlayerCamera : MonoBehaviour {public Transform targetTransform;private Camera _Cam;public Camera Cam{get{if(_Cam == null){_Cam = GetComponent<Camera>();}return _Cam;}}public bool isMoving;public Vector3 CamOffset = Vector3.zero;public Vector3 ZoomOffset = Vector3.zero;public float senstivityX = 5;public float senstivityY = 1;public float minY = 30;public float maxY = 50;public bool isZooming;private float currentX = 0;private float currentY = 1;void Update(){currentX += Input.GetAxis("Mouse X");currentY -= Input.GetAxis("Mouse Y");currentX = Mathf.Repeat(currentX, 360);currentY = Mathf.Clamp(currentY, minY, maxY);isMoving = (Input.GetAxis("Horizontal") != 0 || Input.GetAxis("Vertical") != 0) ? true: false;isZooming = Input.GetMouseButton(1);if(isMoving || isZooming){UpdatePlayerRotation();}}void UpdatePlayerRotation(){targetTransform.rotation = Quaternion.Euler (0, currentX, 0);}void LateUpdate(){Vector3 dist = isZooming? ZoomOffset : CamOffset;Quaternion rotation = Quaternion.Euler(currentY, currentX, 0);transform.position = targetTransform.position + rotation * dist;transform.LookAt(targetTransform.position);CheckWall();}public LayerMask wallLayer;void CheckWall(){RaycastHit hit;Vector3 start = targetTransform.position;Vector3 dir = transform.position - targetTransform.position;float dist = CamOffset.z * -1;Debug.DrawRay(targetTransform.position, dir, Color.green);if(Physics.Raycast(targetTransform.position, dir, out hit, dist, wallLayer)){float hitDist = hit.distance;Vector3 sphereCastCenter = targetTransform.position + (dir.normalized * hitDist);transform.position = sphereCastCenter;}}}
using UnityEngine;
using System.Collections;
public class PlayerCamera : MonoBehaviour {
public Transform targetTransform;
private Camera _Cam;
public Camera Cam{
get{
if(_Cam == null){
_Cam = GetComponent<Camera>();
}
return _Cam;
}
}
public bool isMoving;
public Vector3 CamOffset = Vector3.zero;
public Vector3 ZoomOffset = Vector3.zero;
public float senstivityX = 5;
public float senstivityY = 1;
public float minY = 30;
public float maxY = 50;
public bool isZooming;
private float currentX = 0;
private float currentY = 1;
void Update(){
currentX += Input.GetAxis("Mouse X");
currentY -= Input.GetAxis("Mouse Y");
currentX = Mathf.Repeat(currentX, 360);
currentY = Mathf.Clamp(currentY, minY, maxY);
isMoving = (Input.GetAxis("Horizontal") != 0 || Input.GetAxis("Vertical") != 0) ? true: false;
isZooming = Input.GetMouseButton(1);
if(isMoving || isZooming){
UpdatePlayerRotation();
}
}
void UpdatePlayerRotation(){
targetTransform.rotation = Quaternion.Euler (0, currentX, 0);
}
void LateUpdate(){
Vector3 dist = isZooming? ZoomOffset : CamOffset;
Quaternion rotation = Quaternion.Euler(currentY, currentX, 0);
transform.position = targetTransform.position + rotation * dist;
transform.LookAt(targetTransform.position);
CheckWall();
}
public LayerMask wallLayer;
void CheckWall()
{
RaycastHit hit;
Vector3 start = targetTransform.position;
Vector3 dir = transform.position - targetTransform.position;
float dist = CamOffset.z * -1;
Debug.DrawRay(targetTransform.position, dir, Color.green);
if(Physics.Raycast(targetTransform.position, dir, out hit, dist, wallLayer))
{
float hitDist = hit.distance;
Vector3 sphereCastCenter = targetTransform.position + (dir.normalized * hitDist);
transform.position = sphereCastCenter;
}
}
}
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