koobas.hobune.stream
Why are my instantiated projectiles not firing?
I am using Unity 2019.2.0 with the LWRP and the new input system. Everything else works correctly except the projectile just falls to the ground instead of launching off. The velocity/addforce scripts I have attempted seem to be ignored and I am not sure why.
there is a Rigidbody on the projectile and is not set to kinematic
the projectile variable is initialized as a Rigidbody
there are no colliders in the way at the instantiate point
there are no accompanying console errors
Thanks for any help.
I have attached a video of the issue and the script below:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.InputSystem;
public class Controls : MonoBehaviour
{
GameControls0 controls;
public Rigidbody rb;
public Transform instantiatePos;
public GameObject canon;
public Camera cam;
public GameObject cursor;
Vector3 canonPosition;
Vector2 moveCanon;
Vector2 rotateCanon;
Vector2 moveCrosshair;
public float camMovSpeed = 100f;
public float canonRotateSpeed = 150f;
//Launch metrics
public float launchSpeed = 100f;
public float xLaunchValue = 0f;
public float yLaunchValue = 0.5f;
public float zLaunchValue = 50f;
Vector3 target = new Vector3(0f, 0f, 0f);
Vector3 origin = new Vector3(0f, 0f, 0f);
private void Awake()
{
//Set the new Vector to be that of the Transform you attach in the Inspector
canonPosition.Set(instantiatePos.position.x, instantiatePos.position.y, 0);
controls = new GameControls0();
controls.Gameplay.Launch.performed += ctx => Launch();
controls.Gameplay.MoveCanon.performed += ctx => moveCanon = ctx.ReadValue<Vector2>();
controls.Gameplay.MoveCanon.canceled += ctx => moveCanon = Vector2.zero;
controls.Gameplay.MoveCrosshair.performed += ctx => moveCrosshair = ctx.ReadValue<Vector2>();
controls.Gameplay.MoveCrosshair.canceled += ctx => moveCrosshair = Vector2.zero;
}
void FixedUpdate()
{
//TODO clamp values between X and Y rotations so canon and camera do not rotate too crazy when the player is aiming
// adding the camMovSpeed multiplier fixed the issue where the input was not
// registered in the Game view (even though it was in the Scene view
Vector2 m = new Vector2(-moveCanon.x, moveCanon.y) * Time.deltaTime *camMovSpeed;
cam.transform.Translate(m, Space.World);
canon.transform.rotation = Quaternion.LookRotation(-cursor.transform.position, Vector3.up);
Vector3 c = new Vector3(-moveCrosshair.x, 0.0f, -moveCrosshair.y) * Time.deltaTime * canonRotateSpeed;
cursor.transform.Translate(c, Space.World);
}
void Launch()
{
Rigidbody projectile = Instantiate(rb, transform.position, transform.rotation);
Vector3 Vo = CalculateVelocity(cursor.transform.position, transform.position, 1f);
projectile.velocity = Vo*Time.deltaTime*launchSpeed;
//the below code line is not working at all, I am only able to instatiate the projectile
//projectile.AddForce(xLaunchValue, yLaunchValue, zLaunchValue*launchSpeed, ForceMode.Impulse);
cursor.transform.position = cursor.transform.position + Vector3.up * 0.1f;
}
void OnEnable()
{
controls.Gameplay.Enable();
}
void OnDisable()
{
controls.Gameplay.Disable();
}
private Vector3 CalculateVelocity(Vector3 target, Vector3 origin, float time)
{
//define the distance x and y first
Vector3 distance = target - origin;
Vector3 distanceXZ = distance;
distanceXZ.y = 0f; //this way it will only keep value of x and z component
//create a float that represents out distance
//vertical y dist
float Sy = distance.y;
float Sxz = distanceXZ.magnitude; //dist of x z plane or length of the vector
//calc velocity - Vars V1
float Vxz = Sxz / time;
float Vy = Sy / time + 0.5f * Mathf.Abs(Physics.gravity.y) * time;
Vector3 result = distanceXZ.normalized; //this will return the direction of our factor
//use V1 variables to our new created vector ^
result *= Vxz;
result.y = Vy;
return result;
}
}
