I’m very new to Unity and I’m just trying to get my game to function
I’m trying to make a game with similar movement to this:
When I first tried to do a basic script my character ended up rotating in the wrong direction uncontrollably and gravity didn’t work even though it was applied to the rigidbody.
I will take any advice, I’ve looked through tutorials and they can be hours long & not always helpful for my specific situation.
transform.localEulerAngles = new Vector3(transform.localEulerAngles.x, transform.localEulerAngles.y + somefactor, transform.localEulerAngles.z);
I would apply a simple physical model:
Note: With this approach your are dealing with delta values (differences), so you can not directly apply these values to the rotation part of your transform. You have sum those values over time or use Transform.Rotate(…).
public class Player : MonoBehaviour
{
public float AngularSpeed = 2;
void Update()
{
// Rotate the game object by applying the specified angular speed around the y-axis multiplied by the input axis
transform.Rotate(Vector3.up, Input.GetAxis("Horizontal") * AngularSpeed * Time.deltaTime);
}
}
If you make your camera a child of your player object, the camera will follow the player just like that. Once you have that, you just simply need to rotate your player object/model with something like what Whittwism did with his code there.
If the camera is a child of the player object it will be positioned relative to the player. If the player moves or rotates, it will follow. When you rotate the camera position it will rotate around the player although you may need to change the direction its looking in.
Here’s my camera code:
using UnityEngine;
using System.Collections;
public class CameraController : MonoBehaviour
{
private Transform CameraTransform = null;
private Vector3 CamerasForwardVector;
private float CameraElevation = 1.8f;
private const float MinCameraDistance = 0.5f;
private const float MaxCameraDistance = 3f;
private const float MinCameraHeight = 0.3f;
private const float MaxCameraHeight = 4f;
private const float ThirdPersonCameraTurnSpeed = 2f;
protected enum CameraModes {FirstPerson, ThirdPerson};
private CameraModes CameraMode = CameraModes.ThirdPerson;
private Transform FirstPersonCameraTransformSave = null;
private Transform ThirdPersonCameraTransformSave = null;
private float HeadYaw = 0f;
private const float HeadYawRate = 0.05f;
private const float MaxHeadYaw = 75f;
private float HeadPitch = 0f;
private const float HeadPitchRate = 0.05f;
private const float MaxHeadPitch = 48f;
public const float EyeHeight = 1.68f; //1.68m is an average man.
private GameObject CrossHairsTexture = null;
// Use this for initialization
void Start ()
{
//EvasMesh = GetComponentInChildren<SkinnedMeshRenderer>();
//CameraTransform = Camera.main.transform;
//CameraTransform = GetComponent<Transform>();
CameraTransform = transform;
CameraTransform.LookAt(CameraTransform.parent.localPosition+Vector3.up * EyeHeight, Vector3.up);
CrossHairsTexture = GameObject.Find ("CrossHairs");
}
void Update()
{
}
// Update is called once per frame
void LateUpdate ()
{
//if(!CameraTransform && Camera.main) CameraTransform = Camera.main.transform;
//if(!CameraTransform) Debug.Log("Please assign a camera to the CameraController script.");
if (!CameraTransform) Debug.Log ("Please assign the CameraController script to a Camera object.");
else
{
if (Input.GetButtonDown ("RightThumbStickButton"))
{
if (CameraMode == CameraModes.ThirdPerson)
{
CameraMode = CameraModes.FirstPerson;
ThirdPersonCameraTransformSave = CameraTransform;
CrossHairsTexture.guiTexture.enabled = true;
/* CameraTransform.localPosition = new Vector3(0f,EyeHeight,0.035f); //Offset because model is not zero'ed on the Z axis.
CameraTransform.localRotation = Quaternion.identity;
*/ }
else
{
CameraMode = CameraModes.ThirdPerson;
FirstPersonCameraTransformSave = CameraTransform;
// CameraTransform = ThirdPersonCameraTransformSave;
CameraElevation = EyeHeight + 0.1f;
CameraTransform.localPosition = new Vector3(0f, CameraElevation, -1.5f); //Offset because model is not zero'ed on the Z axis.
CrossHairsTexture.guiTexture.enabled = false;
//CameraTransform.localRotation = Quaternion.identity * Quaternion.AngleAxis(0f, Vector3.up);
}
}
if (CameraMode == CameraModes.FirstPerson)
{
ControlFirstPersonCamera();
//EvasMesh.enabled = false;
}
else
{
//EvasMesh.enabled = true;
ControlThirdPersonCamera();
}
}
}
void ControlFirstPersonCamera()
{
float RightThumbHoriz = Input.GetAxis ("RightThumbHorizontal");
float RightThumbVert = Input.GetAxis ("RightThumbVertical");
float HorizontalDirection = Mathf.Sign (RightThumbHoriz);
float VerticalDirection = Mathf.Sign (RightThumbVert);
/*
if (Input.GetButton("Fire4"))
{
CameraTransform.localPosition = new Vector3(0f,EyeHeight-0.2f,0.9f);
}
else CameraTransform.localPosition = new Vector3(0f,EyeHeight,0.025f); */
CameraTransform.localPosition = new Vector3(0f,EyeHeight,0.025f);
CameraTransform.localRotation = Quaternion.identity;
if (RightThumbHoriz != 0f)
{
HeadYaw += HeadYawRate * HorizontalDirection ;
if (HorizontalDirection > 0 && HeadYaw > RightThumbHoriz) HeadYaw = RightThumbHoriz;
if (HorizontalDirection < 0 && HeadYaw < RightThumbHoriz) HeadYaw = RightThumbHoriz;
CameraTransform.RotateAround (CameraTransform.position, Vector3.up, MaxHeadYaw * HeadYaw);
}
else
{
if (HeadYaw > 0.05)
{
HeadYaw -= HeadYawRate;
CameraTransform.RotateAround (CameraTransform.position, Vector3.up, MaxHeadYaw * HeadYaw);
}
else if (HeadYaw < -0.05)
{
HeadYaw += HeadYawRate;
CameraTransform.RotateAround (CameraTransform.position, Vector3.up, MaxHeadYaw * HeadYaw);
}
else HeadYaw = 0f;
}
if (RightThumbVert !=0)
{
HeadPitch += HeadPitchRate * VerticalDirection;
if (VerticalDirection > 0 && HeadPitch > RightThumbVert) HeadPitch = RightThumbVert;
if (VerticalDirection < 0 && HeadPitch < RightThumbVert) HeadPitch = RightThumbVert;
CameraTransform.RotateAround (CameraTransform.position, CameraTransform.right, MaxHeadPitch * HeadPitch);
}
else
{
if (HeadPitch > 0.05)
{
HeadPitch -= HeadPitchRate;
CameraTransform.RotateAround (CameraTransform.position, CameraTransform.right, MaxHeadPitch * HeadPitch);
}
else if (HeadPitch < -0.05)
{
HeadPitch += HeadPitchRate;
CameraTransform.RotateAround (CameraTransform.position, CameraTransform.right, MaxHeadPitch * HeadPitch);
}
else HeadPitch = 0f;
}
}
void ControlThirdPersonCamera()
{
float RightThumbHoriz = Input.GetAxis ("RightThumbHorizontal");
float RightThumbVert = Input.GetAxis ("RightThumbVertical");
Vector2 XZPlaneCameraPosition;
bool CameraPositionChanged = false;
float TurnAngle;
XZPlaneCameraPosition = new Vector2(CameraTransform.localPosition.x, CameraTransform.localPosition.z);
//Get a normalized 2D camera's forward vector in 3D.
//CamerasForwardVector = CameraTransform.TransformDirection (Vector3.forward);
//CamerasForwardVector.y = 0;
//Rotate Camera
if (RightThumbHoriz != 0f)
{
TurnAngle = -RightThumbHoriz * ThirdPersonCameraTurnSpeed * Time.deltaTime;
//CameraTransform.RotateAround (CameraTransform.parent.position, Vector3.up, 90f * Time.deltaTime * RightThumbHoriz);
XZPlaneCameraPosition.x = XZPlaneCameraPosition.x * Mathf.Cos(TurnAngle) - XZPlaneCameraPosition.y * Mathf.Sin(TurnAngle);
XZPlaneCameraPosition.y = XZPlaneCameraPosition.x * Mathf.Sin(TurnAngle) + XZPlaneCameraPosition.y * Mathf.Cos(TurnAngle);
CameraPositionChanged = true;
}
//Hoist Camera
if (RightThumbVert != 0)
{
//CameraElevation += 0.75f * RightThumbVert * Time.deltaTime;
CameraElevation = CameraTransform.localPosition.y + 0.75f * RightThumbVert * Time.deltaTime;
CameraPositionChanged = true;
}
//Zoom Camera
if (Input.GetKey (KeyCode.PageDown))
{
//CamerasForwardVector = CameraTransform.forward;
//CamerasForwardVector = CamerasForwardVector.normalized;
//CameraTransform.position += -CamerasForwardVector * Time.deltaTime;
XZPlaneCameraPosition *= (1f + (Time.deltaTime * 2f));
//XZPlaneCameraPosition = new Vector2(CameraTransform.localPosition.x, CameraTransform.localPosition.z);
if (XZPlaneCameraPosition.magnitude > MaxCameraDistance)
{
XZPlaneCameraPosition.Normalize ();
XZPlaneCameraPosition *= MaxCameraDistance;
/*CameraTransform.localPosition = new Vector3(XZPlaneCameraPosition.x, CameraElevation, XZPlaneCameraPosition.y);
CameraTransform.LookAt(CameraTransform.parent.localPosition+Vector3.up * EyeHeight, Vector3.up);*/
CameraElevation = CameraTransform.localPosition.y;
}
CameraPositionChanged = true;
/* CamerasForwardVector = CameraTransform.forward;
CamerasForwardVector = CamerasForwardVector.normalized;
CameraTransform.position += -CamerasForwardVector * Time.deltaTime * 1f * RightThumbVert;
XZPlaneCameraPosition = new Vector2(CameraTransform.localPosition.x, CameraTransform.localPosition.z);
if (XZPlaneCameraPosition.magnitude < MinCameraDistance)
{
XZPlaneCameraPosition.Normalize ();
XZPlaneCameraPosition *= MinCameraDistance;
CameraTransform.localPosition = new Vector3(XZPlaneCameraPosition.x, CameraElevation, XZPlaneCameraPosition.y);
CameraTransform.LookAt(CameraTransform.parent.position+Vector3.up * 1.68f, Vector3.up);
}
*/
}
if (Input.GetKey (KeyCode.PageUp))
{
//CamerasForwardVector = CameraTransform.forward;
//CamerasForwardVector = CamerasForwardVector.normalized;
//CameraTransform.position -= -CamerasForwardVector * Time.deltaTime;
XZPlaneCameraPosition *= (1f - (Time.deltaTime * 2f));
if (XZPlaneCameraPosition.magnitude < MinCameraDistance)
{
XZPlaneCameraPosition.Normalize ();
XZPlaneCameraPosition *= MinCameraDistance;
/*CameraTransform.localPosition = new Vector3(XZPlaneCameraPosition.x, CameraElevation, XZPlaneCameraPosition.y);
CameraTransform.LookAt(CameraTransform.parent.localPosition+Vector3.up * EyeHeight, Vector3.up);*/
CameraElevation = CameraTransform.localPosition.y;
}
CameraPositionChanged = true;
}
if (CameraPositionChanged)
{
if (CameraElevation > MaxCameraHeight) CameraElevation = MaxCameraHeight;
else if (CameraElevation < MinCameraHeight) CameraElevation = MinCameraHeight;
CameraTransform.localPosition = new Vector3(XZPlaneCameraPosition.x, CameraElevation, XZPlaneCameraPosition.y);
//CameraTransform.localPosition = new Vector3(CameraTransform.localPosition.x, CameraElevation, CameraTransform.localPosition.z);
CameraTransform.LookAt(CameraTransform.parent.localPosition+Vector3.up * EyeHeight, Vector3.up);
}
}
}
Thank you everyone but I’m getting nothing but “can’t add script because it doesn’t exist” errors now. It says to make sure the class names and script names match.
My CS script is title “Player” and it read public class Player : MonoBehaviour
So I’m really not sure what I’m doing wrong
I tried making a new script, changing the name but I can’t add any scripts.
I’m also having that error where you can’t see what the errors are (they aren’t at the bottom of the screen)
And currently I have no other scripts added to my game at all
Usually if you can’t add a script, it contains errors.
Can you post your script? This way someone can help you find/fix the errors …
I fixed it guys! Thanks!