Develop Reference

How to change the orientation for an overlapbox and a gizmo?

after a good amount of searching I haven't been able to find out how to change the rotation of my overlap boxes set up and the gizmo used to visualize them.
//draw a hitbox in front of the character to see which objects it collides with
Vector3 boxPosition = transform.position + (Vector3.up * lastAttack.collHeight)
+ Vector3.right * lastAttack.collDistance;
Vector3 boxSize = new Vector3 (lastAttack.CollSize/2, lastAttack.CollSize/2, hitZRange/2);
Collider[] hitColliders = Physics.OverlapBox(boxPosition, boxSize, Quaternion.identity,
HitLayerMask);
I'm using it for damage calculation. I want the OverlapBox to take the same rotation of the player and always be in front of the player.
void OnDrawGizmos(){
if (lastAttack != null && (Time.time - lastAttackTime) < lastAttack.duration) {
Gizmos.color = Color.red;
Vector3 boxPosition = transform.position + (Vector3.up * lastAttack.collHeight)
+ Vector3.right * ((int)lastAttackDirection * lastAttack.collDistance);
Vector3 boxSize = new Vector3 (lastAttack.CollSize, lastAttack.CollSize, hitZRange);
Gizmos.DrawWireCube (boxPosition, boxSize);
}
}
Draw the Box Overlap as a gizmo to show where it currently is testing

To have the overlap box inherit the transform's rotation, you can use transform.rotation instead of Quaternion.identity for the overlap box's rotation.
For the gizmo, it's a little more complex. One way to fix this is to change the Gizmo matrix to be the local transform matrix with Gizmos.matrix = transform.localToWorldMatrix, which will make the gizmo inherit the player's rotation. But, it will also make the gizmo's position be relative to the player's local position. So, you'll need to convert the world position boxPosition to local position before you draw the gizmo. You can use transform.InverseTransformPoint to do this.
You may want to restore the gizmo settings to what they were previously or it could result in unexpected behaviour in other places where Gizmos is used.
Altogether:
//draw a hitbox in front of the character to see which objects it collides with
Vector3 boxPosition = transform.position + (Vector3.up * lastAttack.collHeight)
+ Vector3.right * lastAttack.collDistance;
Vector3 boxSize = new Vector3 (lastAttack.CollSize/2, lastAttack.CollSize/2, hitZRange/2);
Collider[] hitColliders = Physics.OverlapBox(boxPosition, boxSize,
transform.rotation, HitLayerMask);
...
void OnDrawGizmos(){
if (lastAttack != null && (Time.time - lastAttackTime) < lastAttack.duration) {
// cache previous Gizmos settings
Color prevColor = Gizmos.color;
Matrix4x4 prevMatrix = Gismos.matrix;
Gizmos.color = Color.red;
Gizmos.matrix = transform.localToWorldMatrix;
Vector3 boxPosition = transform.position + (Vector3.up * lastAttack.collHeight)
+ Vector3.right * ((int)lastAttackDirection * lastAttack.collDistance);
// convert from world position to local position
boxPosition = transform.InverseTransformPoint(boxPosition);
Vector3 boxSize = new Vector3 (lastAttack.CollSize, lastAttack.CollSize, hitZRange);
Gizmos.DrawWireCube (boxPosition, boxSize);
// restore previous Gizmos settings
Gizmos.color = prevColor;
Gizmos.matrix = prevMatrix;
}
}

Unity3D - Third Person Player movement in diagonal direction is slower than vertical and horizontal movement?

I'm trying to create a character controller that allows the movement speed to be affected by how far the player is pressing the left stick. When I can get that much to work, the other issue I encounter is the players speed decreasing while moving diagonally.
Most of the information I've found online deal with the opposite issue where diagonal movement is faster (movement vector goes above 1). The solution there would be to clamp the magnitude so pressing the stick into a corner doesn't go above 1. I've tried clamping to see if that would work, however, I don't believe that's the solution to my problem.
The code here allows the player to move in relation to the camera and the speed is influenced by input vector.
Vector3 input = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));
Vector3 inputDir = input.normalized;
void Move(Vector3 inputDir, Vector3 input)
{
running = Input.GetKey(KeyCode.Joystick1Button1); // B button on xbox one controller
// Rotation stuff
if (inputDir != Vector3.zero) {
float targetRotation = Mathf.Atan2(inputDir.x, inputDir.z) * Mathf.Rad2Deg + cameraTransform.eulerAngles.y;
transform.eulerAngles = Vector3.up * Mathf.SmoothDampAngle(transform.eulerAngles.y, targetRotation, ref turnSmoothVelocity, GetModifiedSmoothTime(speedSmoothTime));
}
// Pretty sure this is where things are breaking
float targetSpeed = ((running) ? runSpeed : walkSpeed) * inputDir.magnitude;
currentSpeed = Mathf.SmoothDamp(currentSpeed, targetSpeed, ref speedSmoothVelocity, GetModifiedSmoothTime(speedSmoothTime));
currentSpeed *= input.magnitude;
vel = transform.forward * currentSpeed + Vector3.up * velocityY;
currentSpeed = new Vector3(_controller.velocity.x, 0, _controller.velocity.z).magnitude;
}
void ExecuteMovement()
{
_controller.Move(vel * Time.deltaTime);
}

c# unity flpping y axis on rotation player goes upside-down

OK so this has been an issue for a week now i cant seem to figure it out i am trying to flip my submarine on its y axis once its goes upside-down. it rotates on my mouse position i will show you my code.
//This code rotates my submarine on mouse position which is perfect.
Vector3 RayPos = cam.WorldToScreenPoint(transform.position);
Vector3 dir = Input.mousePosition - RayPos;
float angle = Mathf.Atan2(dir.y, dir.x) * Mathf.Rad2Deg;
Quaternion rotation = Quaternion.AngleAxis(angle, Vector3.forward);
transform.rotation = Quaternion.Slerp(transform.rotation, rotation,
rotateSpeed * Time.deltaTime);
//now this code is my problem once my sub goes upside down it flips (y) but
it only does it once but then when i go back the correct way it wont flip
on (y) anymore.
Debug.Log(Mathf.Abs(Vector3.Dot(transform.up, Vector3.up)));
if (Mathf.Abs(Vector3.Dot(transform.up, Vector3.down)) < 0.125f)
{
if (Mathf.Abs(Vector3.Dot(transform.right, Vector3.down)) > 0.825f)
{
SubTrans.localScale = new Vector3(transform.localScale.x, -1,
transform.localScale.z);
}
else
{
SubTrans.localScale = new Vector3(transform.localScale.x, 1,
transform.localScale.z);
}
}

Instantiate Object on Raycast2D hit and rotate Instance

I want to move an instance of a gameObject along the outline of another gameobject. Its a 2D Project in Unity.
My current Code:
Vector3 mousePosition = m_camera.ScreenToWorldPoint(Input.mousePosition);
RaycastHit2D hit = Physics2D.Raycast(new Vector2(mousePosition.x, mousePosition.y), new Vector2(player.transform.position.x, player.transform.position.y));
if (hit.collider != null && hit.collider.gameObject.tag == "Player") {
if (!pointerInstance) {
pointerInstance = Instantiate(ghostPointer, new Vector3(hit.point.x, hit.point.y, -1.1f), Quaternion.identity);
} else if(pointerInstance) {
pointerInstance.gameObject.transform.position = new Vector3(hit.point.x, hit.point.y, -1.1f);
pointerInstance.gameObject.transform.eulerAngles = new Vector3(0f, 0f, hit.normal.x);
}
}
Unfortunately, the gameObject doesn't rotate towards the mouse and the position on the left side of the playerObject is also sometimes off. I tried to use Instantiate() with Quaternion.LookRotation(hit.normal), but no luck either.
Here a rough sketch of what I want to achieve:
Any help is appreciated. Thanks!

it's better to use Mathematical way instead of physical way(Raycasting),because in raycasting you have to throw ray several time for checking hit point and rotate your object,it makes lag in your game.
Attach this script to your instantiated object:
using UnityEngine;
using System.Collections;
public class Example : MonoBehaviour
{
public Transform Player;
void Update()
{
//Rotating Around Circle(circular movement depend on mouse position)
Vector3 targetScreenPos = Camera.main.WorldToScreenPoint(Player.position);
targetScreenPos.z = 0;//filtering target axis
Vector3 targetToMouseDir = Input.mousePosition - targetScreenPos;
Vector3 targetToMe = transform.position - Player.position;
targetToMe.z = 0;//filtering targetToMe axis
Vector3 newTargetToMe = Vector3.RotateTowards(targetToMe, targetToMouseDir, /* max radians to turn this frame */ 2, 0);
transform.position = Player.position + /*distance from target center to stay at*/newTargetToMe.normalized;
//Look At Mouse position
var objectPos = Camera.main.WorldToScreenPoint(transform.position);
var dir = Input.mousePosition - objectPos;
transform.rotation = Quaternion.Euler(0, 0, Mathf.Atan2(dir.y, dir.x) * Mathf.Rad2Deg);
}
}
Useful explanations
Atan2:
atan2(y,x) gives you the angle between the x-axis and the vector (x,y), usually in radians and signed such that for positive y you get an angle between 0 and π, and for negative y the result is between −π and 0.
https://math.stackexchange.com/questions/67026/how-to-use-atan2
Returns the angle in radians whose Tan is y/x.
Return value is the angle between the x-axis and a 2D vector starting at zero and terminating at (x,y).
https://docs.unity3d.com/ScriptReference/Mathf.Atan2.html
Mathf.Rad2Deg:
Radians-to-degrees conversion constant (Read Only).
This is equal to 360 / (PI * 2).

XNA-Moving rotated camera(view) relative to world

So I've been trying to get this to work but no luck so far, hopefully you can help. The thing is I have a camera in my project that the user can freely move with mouse and buttons.
Currently like so:
move = new Vector3(0, 0, -1) * moveSpeed;
move = new Vector3(0, 0, 1) * moveSpeed;
...
And then I just add move vector to cameraPos vector: cameraPos += move
Then problem is if I rotate the camera and then try to move, for example down, it will not move straight down but in a certain angle. I am assuming this is due to moving on local axis. But what I want to do is to move on a world axis. Is something like that possible, or do I have to somehow calculate the angle and then move on more than one axis?
Best regards!
EDIT:
I am rotating the camera where cameraPos is the current position of the camera and rotation is the current rotation of the camera. And this is the code to rotate the camera:
void Update()
{
...
if(pressed)
{
int newY = currentY - oldY;
pitch -= rotSpeed * newY;
}
Rotate();
}
void Rotate()
{
rotation = Matrix.CreateRotationX(pitch);
Vector3 transformedReference = Vector3.Transform(cameraPos, rotation);
Vector3 lookAt = cameraPos + transformedReference;
view = Matrix.CreateLookAt(cameraPos, lookAt, Vector3.Up);
oldY = currentY;
}
Ihope this is more readable.

I was able to solve this problem by using:
Vector3 v;
if (state.IsKeyDown(Keys.Up))
v = new Vector3(0, 0, 1) * moveSpeed;
... //Other code for moving down,left,right
if (state.IsKeyDown(Keys.V))
view *= Matrix.CreateRotationX(MathHelper.ToRadians(-5f) * rotSpeed); //Multiplying view Matrix to create rotation
view *= Matrix.CreateTranslation(v); //Multiplying view Matrix to create movement by Vector3 v

I suppose you're already saving the direction you're looking at in a Vector3. Replace your method with this:
direction.Normalize();
var move = direction * moveSpeed;
cameraPos += move;