What is causing my camera to zoom in on my character? [unity] - unity3d

I am having a few strange issues with the way my camera is working. I am trying to do a perspective view of the player to allow for multiple layers to act like a parallaxing effect.
Here is the code I am using on the camera. ( I have dragged the Player onto the Transform target)
public Transform target;
public float distance = 3.0f;
public float height = 3.0f;
public float damping = 5.0f;
public bool followBehind = true;
public float rotationDamping = 10.0f;
void Update()
{
Vector3 wantedPosition;
if (followBehind)
wantedPosition = target.TransformPoint(0, height, -distance);
else
wantedPosition = target.TransformPoint(0, height, distance);
transform.position = Vector3.Lerp(transform.position, wantedPosition, Time.deltaTime * damping);
}
Here is what is happening:
If you look at the Scale it is set to .5 , but when I press play it looks like this:
My ultimate goal is to follow the player. Be some distance away and then be able to adjust the height of the camera, so that my player is towards the ground. Any help would be awesome.

wantedPosition probably has a different z axis and is changing the z axis of your camera. I suggest you get the z axis of the camera then store it somewhere else. Always change the z axis of wantedPosition to that default value before assigning it to the camera.
public Transform target;
public float distance = 3.0f;
public float height = 3.0f;
public float damping = 5.0f;
public bool followBehind = true;
public float rotationDamping = 10.0f;
float defaultZPos = 0;
void Start()
{
Vector3 tempCamPos = Camera.main.transform.position;
defaultZPos = tempCamPos.z;
}
void Update()
{
Vector3 wantedPosition;
if (followBehind)
wantedPosition = target.TransformPoint(0, height, -distance);
else
wantedPosition = target.TransformPoint(0, height, distance);
//Change the z pos to the deafult vale
wantedPosition.z = defaultZPos;
transform.position = Vector3.Lerp(transform.position, wantedPosition, Time.deltaTime * damping);
}

Related

Rotate Camera vector to look at player Unity

I create a game, like minigolf/pool. I want to have a camera which follow player.
Position is normally ok, I get the ball direction and I lerp.
Rotation is almost ok. Currently, rotation by Y axis is ok, but camera look straigth forward, and don't look down to the player :
I already try many thing , quaternion angleToaxis, quarternion lookat ... but doesn't look good, the camera go look away ...
Here my code
namespace CameraManagerNameSpace
{
public class CameraManager : MonoBehaviour
{
public float cameraHeight=13f;
public PlayerNameSpace.Player playerToFollow;
public float followSpeed = 3f;
public float rotationSpeed = 1f;
float distance;
Vector3 position;
Vector3 newPos;
Quaternion rotation;
Quaternion newRot;
Vector3 playerPrevPos, playerMoveDir;
bool firstMoveDone=false;
void Start()
{
playerPrevPos = playerToFollow.player_transform.position;
distance = Vector3.Distance(transform.position,playerToFollow.player_transform.position);
}
void FixedUpdate()
{
if(Vector3.Distance(playerToFollow.player_transform.position ,playerPrevPos)>0.5f || firstMoveDone)
{
playerMoveDir = playerToFollow.player_transform.position - playerPrevPos;
firstMoveDone = true;
}
else
{
playerMoveDir = new Vector3(0,0,0);
}
if (playerMoveDir != Vector3.zero)
{
playerMoveDir.Normalize();
newPos = playerToFollow.player_transform.position - playerMoveDir * distance;
newRot =Quaternion.LookRotation(playerMoveDir,Vector3.up);
position = Vector3.Lerp(transform.position, new Vector3(newPos.x,newPos.y+cameraHeight,newPos.z), followSpeed * Time.deltaTime);
rotation = Quaternion.Lerp(transform.rotation, newRot, rotationSpeed * Time.deltaTime);
transform.position = position;
transform.rotation = rotation;
playerPrevPos = playerToFollow.player_transform.position;
}
}
}
}
Also, I don't know why, but after the balls stop the camera continue to do some movement very jerky, jolting, halting.
Well in
newRot = Quaternion.LookRotation(playerMoveDir,Vector3.up);
you are saying the camera to look in the same direction the player is moving ... not to look at the player. This would work if you wouldn't give the camera an extra position offset in the Y axis.
You might want to rather try
// vector pointing from the camera towards the player
var targetDirection = playerToFollow.player_transform.position - transform.position;
newRot = Quaternion.LookRotation(targetDirection, Vector3.up);
You should also rather use Update since FixedUpdate is only used for physics related stuff (also see Update & FixedUpdate)

unity camera follow rolling box

i have a cube that rolls with the arrow keys or control pad
up goes up, left turns left, and right turns right, so only the up makes it roll
im trying to get a camera to follow but not really getting anywhere
i found this script cant rember where that im trying to alter
but as i roll the cube forward the camera spins
simple video showing movment
https://imgur.com/a/BfoR1VF
any pointers in the right direction sorry about the pun would be good
simple lookat script
public Transform player;
void Start()
{
}
void Update()
{
Vector3 targetPostion = new Vector3(player.transform.position.x, transform.position.y,player.transform.position.z);
transform.LookAt(targetPostion);
}
and the follow script
// The target we are following
public Transform target;
// The distance in the x-z plane to the target
//So this would be your offset
public float distance = 10.0f;
// the height we want the camera to be above the target
public float height = 5.0f;
// How much we
public float heightDamping = 2.0f;
public float rotationDamping = 3.0f;
void LateUpdate()
{
// Early out if we don't have a target
if (!target) return;
// Calculate the current rotation angles
float wantedRotationAngle = target.eulerAngles.y;
float wantedHeight = target.position.y + height;
float currentRotationAngle = transform.eulerAngles.y;
float currentHeight = transform.position.y;
// Damp the rotation around the y-axis
currentRotationAngle = Mathf.LerpAngle(currentRotationAngle, wantedRotationAngle, rotationDamping * Time.deltaTime);
// Damp the height
currentHeight = Mathf.Lerp(currentHeight, wantedHeight, heightDamping * Time.deltaTime);
// Convert the angle into a rotation
var currentRotation = Quaternion.Euler(0, currentRotationAngle, 0);
// Set the position of the camera on the x-z plane to:
// distance meters behind the target
transform.position = target.position;
transform.position -= currentRotation * Vector3.forward * distance;
// Set the height of the camera
transform.position = new Vector3(transform.position.x, currentHeight, transform.position.z);
// Always look at the target
Vector3 thetargetPostition = new Vector3(0, target.position.y,0);
transform.LookAt(target.position);
//transform.LookAt(thetargetPostition);

Unity camera problem - Moving FPS/TPS camera to look at a target and resuming player control

I am having trouble with aligning my player controlled camera (I use the same class for FPS and TPS) to look at a target (when ResetCamera() is called by another script) and then getting the player to resume control. The main reason I am doing this is so I can switch between FPS and TPS cameras and remain looking at the same target.
I can look at the target fine, but ONLY if I stop setting the rotation based on yaw and pitch (from "Mouse X" and "Mouse Y" inputs) in LateUpdate() after I set the lookAtTarget in ResetCamera(), but that means the player can no longer look around.
However, I cannot figure out how to get the correct yaw and pitch values after this so the player can continue looking around from the new look at target. How could I do this so the player could continue looking around?
public class PlayerCamera : MonoBehaviour {
public float mouseSensitivity = 10f;
public Transform target;
public float dstFromTarget = 2f;
public Vector2 pitchConstraints = new Vector2(-20f, 85f);
public float rotSmoothTime = .12f;
Vector3 rotSmoothVel;
Vector3 currRot;
float yaw;
float pitch;
void LateUpdate() {
yaw += Input.GetAxis("Mouse X") * mouseSensitivity;
pitch -= Input.GetAxis("Mouse Y") * mouseSensitivity;
pitch = Mathf.Clamp(pitch, pitchConstraints.x, pitchConstraints.y);
currRot = Vector3.SmoothDamp(currRot, new Vector3(pitch, yaw), ref rotSmoothVel, rotSmoothTime);
transform.eulerAngles = currRot;
transform.position = target.position - transform.forward * dstFromTarget;
}
public void ResetCamera(Transform lookAtTarget) {
transform.LookAt(lookAtTarget);
// below gets yaw and pitch values that move the camera to look at the
// wrong location
// yaw = transform.eulerAngles.x;
// pitch = transform.eulerAngles.y;
// pitch = Mathf.Clamp(pitch, pitchConstraints.x, pitchConstraints.y);
// currRot = new Vector3(pitch, yaw);
}
}
So, I figured out how to do what I wanted. Below is a script for a third or first person (just adjust the dstFromTarget variable to zero) camera that can be rotated to look at a target by another script with ResetCamera() and the player can resume moving around from that point.
public class PlayerCamera : MonoBehaviour {
public bool isFirstPerson = false;
public float mouseSensitivity = 10f;
public Transform target;
public float dstFromTarget = 2f;
public bool invertedPitch = false;
public float smoothTime = .12f;
public float minimumX = -85f;
public float maximumX = 85f;
// LateUpdate, so the Camera Target will definitely have been set
void LateUpdate () {
// first person updating is handled by Inverse kinematics stuff in my case
if (isFirstPerson) return;
UpdateStuff();
}
public void UpdateStuff() {
float yaw = Input.GetAxisRaw("Mouse X");
float pitch = -Input.GetAxisRaw("Mouse Y");
if (invertedPitch) {
pitch *= -1f;
}
Vector3 yRot = new Vector3(0f, yaw, 0f) * mouseSensitivity;
Vector3 xRot = new Vector3(pitch, 0f, 0f) * mouseSensitivity;
xRot = ClampRotationAroundXAxis(transform.rotation, xRot);
Transform newTrans = transform;
newTrans.Rotate(xRot);
newTrans.Rotate(yRot, Space.World);
transform.rotation = Quaternion.Slerp(transform.rotation, newTrans.rotation, smoothTime * Time.deltaTime);
transform.position = target.position - transform.forward * dstFromTarget;
}
public void ResetCamera(Transform lookAtTarget) {
transform.LookAt(lookAtTarget);
}
Vector3 ClampRotationAroundXAxis(Quaternion q, Vector3 xrot) {
q.x /= q.w;
q.y /= q.w;
q.z /= q.w;
q.w = 1.0f;
float angleX = 2.0f * Mathf.Rad2Deg * Mathf.Atan (q.x);
if (angleX < minimumX && xrot.x < 0f) {
xrot = Vector3.zero;
}
if (angleX > maximumX && xrot.x > 0f) {
xrot = Vector3.zero;
}
return xrot;
}
}

AI scripting in Unity. Blocking Y rotation in code

I am creating a game where the world is 3D yet the characters are 2D. This means that my Y rotation must not change or else the 2D sprite rotates. I have a been scripting an AI and while the enemy does attract towards my player, he also rotates by 90 degrees. How can I modify my code to make it so that the sprite follows my player in the X and Z axis but the Y axis rotation stays zero.
//CODE STARTS
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class AISimple : MonoBehaviour
{
public Transform player;
float distancefrom_player;
public float look_range = 20.0f;
public float agro_range = 10.0f;
public float move_speed = 5.0f;
public float damping = 6.0f;
// Use this for initialization
void Start()
{
}
// Update is called once per frame
void Update()
{
distancefrom_player = Vector3.Distance(player.position, transform.position);
if (distancefrom_player < look_range)
{
lookAt();
}
if (distancefrom_player < agro_range)
{
attack();
}
}
void lookAt()
{
Quaternion rotation = Quaternion.LookRotation(player.position - transform.position);
transform.rotation = Quaternion.Slerp(transform.rotation, rotation, Time.deltaTime * damping);
}
void attack()
{
transform.Translate(Vector3.forward * move_speed * Time.deltaTime);
}
}
rigidbody has this functionality, if you tick freeze y rotation you'll be fine
okay, then try to modify y rotation before you set it
void lookAt()
{
Quaternion rotation = Quaternion.LookRotation(player.position - transform.position);
var euler = Quaternion.Slerp(transform.rotation, rotation, Time.deltaTime * damping).eulerAngles;
euler.y = 0f;
transform.rotation = Quaternion.Euler(euler);
}

How do I make the border of a map and the panning of that map the same?

I am using a map bigger than the screen I viewing. Therefore I need to be able to pan around that map. I am having a problem with clamping the camera and the map. I want to be able to use the demension of the image as the width and height of the clamp. The problem is the units.
The image is 2144 x 1708
The camera transposition is in single digits (14 x 7) or something like that.
All of the code I am using is below.
private Vector3 mouseOrigin; // Position of cursor when mouse dragging starts
private bool isPanning; // Is the camera being panned?
public bool useBoundary = true;
public Vector2 boundaryMin;
public Vector2 boundaryMax;
public Image map;
private void Start()
{
Camera cam = Camera.main;
float mapRatio = map.rectTransform.rect.width / map.rectTransform.rect.height;
float mapScreenHeight = (1.5f * cam.orthographicSize);
float mapScreenWidth = (3f * mapScreenHeight) * cam.aspect;
boundaryMin = new Vector2(0, 1);
boundaryMax = new Vector2(map.rectTransform.rect.width, map.rectTransform.rect.height);
}
private void Update()
{
if (Input.GetMouseButtonDown(0))
{
mouseOrigin = Input.mousePosition;
isPanning = true;
}
// Disable movements on button release
if (!Input.GetMouseButton(0))
isPanning = false;
if (isPanning)
{
Vector3 pos = Camera.main.ScreenToViewportPoint(Input.mousePosition - mouseOrigin);
Vector3 move = new Vector3(pos.x * panSpeed, pos.y * panSpeed, 0);
transform.Translate(move, Space.Self);
BoundaryCheck();
}
}
private void BoundaryCheck()
{
if (!useBoundary)
return;
Vector3 newPos = transform.position;
newPos.x = Mathf.Clamp(newPos.x, boundaryMin.x, boundaryMax.x);
newPos.y = Mathf.Clamp(newPos.y, boundaryMin.y, boundaryMax.y);
transform.position = newPos;
}
}
Any help would be greatly appreciated.
You can do this using Unity UI - Scroll Rect.
Check out Unity UI - Scroll Rect - Introduction
In my opinion you should need to use below script for camera panning, zooming and rotating. You can off any undesirable function. Now according to your question you have to restrict the movement(according to your image border). simply you can restrict the camera movements on differet axis according to your limitations. You should place cubes into the borders of the map and use their positions as the limit of camera movement and panning etc.
using UnityEngine;
using System.Collections;
public class CamMovementManager : MonoBehaviour
{
#region Vars
public float turnSpeed = 1.0f; // Speed of camera turning when mouse moves in along an axis
public float panSpeed = 4.0f; // Speed of the camera when being panned
public float zoomSpeed = 4.0f; // Speed of the camera going back and forth
private Vector3 mouseOrigin; // Position of cursor when mouse dragging starts
private bool isPanning; // Is the camera being panned?
private bool isRotating; // Is the camera being rotated?
private bool isZooming; // Is the camera zooming?
private float pannPosLimit = 300f;
private int fovMin = 15;
private int fovMax = 90;
#endregion Vars
#region UnityEvents
void Update()
{
// Get the left mouse button
if (Input.GetMouseButtonDown(0))
{
// Get mouse origin
mouseOrigin = Input.mousePosition;
isRotating = true;
}
// Get the right mouse button
if (Input.GetMouseButtonDown(1))
{
// Get mouse origin
mouseOrigin = Input.mousePosition;
isPanning = true;
}
// Get the middle mouse button
if (Input.GetMouseButtonDown(2))
{
// Get mouse origin
//mouseOrigin = Input.mousePosition;
//isZooming = true;
}
//changing fov on mouse scroll to zoomIn/out
float fov = Camera.main.fieldOfView;
fov += Input.GetAxis("Mouse ScrollWheel") * 10f;
fov = Mathf.Clamp(fov, fovMin, fovMax);
Camera.main.fieldOfView = fov;//*/
// Disable movements on button release
if (!Input.GetMouseButton(0)) isRotating = false;
if (!Input.GetMouseButton(1)) isPanning = false;
if (!Input.GetMouseButton(2)) isZooming = false;
// Rotate camera along X and Y axis
if (isRotating)
{
Vector3 pos = Camera.main.ScreenToViewportPoint(Input.mousePosition - mouseOrigin);
//Debug.Log("rotate pos : " + pos);
transform.RotateAround(transform.position, transform.right, -pos.y * turnSpeed);
transform.RotateAround(transform.position, Vector3.up, pos.x * turnSpeed);
}
// Move the camera on it's XY plane
if (isPanning)
{
if (Input.mousePosition.y > pannPosLimit)
{
Vector3 pos = Camera.main.ScreenToViewportPoint(Input.mousePosition - mouseOrigin);
Vector3 move = new Vector3(pos.x * panSpeed, pos.y * panSpeed, 0);
transform.Translate(move, Space.Self);
}
}
// Move the camera linearly along Z axis
if (isZooming)
{
Vector3 pos = Camera.main.ScreenToViewportPoint(Input.mousePosition - mouseOrigin);
Vector3 move = pos.y * zoomSpeed * transform.forward;
transform.Translate(move, Space.World);
}
}
#endregion
#region CustomMethods
public void CamRotating()
{
Vector3 pos = Camera.main.ScreenToViewportPoint(Input.mousePosition - mouseOrigin);
transform.RotateAround(transform.position, transform.right, -pos.y * turnSpeed);
transform.RotateAround(transform.position, Vector3.up, pos.x * turnSpeed);
}
public void CamPanning()
{
Vector3 pos = Camera.main.ScreenToViewportPoint(Input.mousePosition - mouseOrigin);
Vector3 move = new Vector3(pos.x * panSpeed, pos.y * panSpeed, 0);
transform.Translate(move, Space.Self);
}
public void CamZooming()
{
Vector3 pos = Camera.main.ScreenToViewportPoint(Input.mousePosition - mouseOrigin);
Vector3 move = pos.y * zoomSpeed * transform.forward;
transform.Translate(move, Space.World);
}
#endregion CustomMethods
}