Projectile instantiating but just falls, my velocity scripting has no effect

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

I have attached a video of the issue and the script below:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.InputSystem;
5.  
6. public class Controls : MonoBehaviour
7. {  
8.     GameControls0 controls;
9.  
10.     public Rigidbody rb;
11.     public Transform instantiatePos;
12.     public GameObject canon;
13.     public Camera cam;
14.     public GameObject cursor;
15.  
16.     Vector3 canonPosition;
17.     Vector2 moveCanon;
18.     Vector2 rotateCanon;
19.     Vector2 moveCrosshair;
20.  
21.     public float camMovSpeed = 100f;
22.     public float canonRotateSpeed = 150f;
23.  
24.     //Launch metrics
25.     public float launchSpeed = 100f;
26.     public float xLaunchValue = 0f;
27.     public float yLaunchValue = 0.5f;
28.     public float zLaunchValue = 50f;
29.      
30.  
31.     Vector3 target = new Vector3(0f, 0f, 0f);
32.     Vector3 origin = new Vector3(0f, 0f, 0f);
33.  
34.  
35.  
36.  
37.  
38.     private void Awake()
39.     {
40.         //Set the new Vector to be that of the Transform you attach in the Inspector
41.         canonPosition.Set(instantiatePos.position.x, instantiatePos.position.y, 0);
42.  
43.  
44.         controls = new GameControls0();
45.  
46.         controls.Gameplay.Launch.performed += ctx => Launch();
47.      
48.         controls.Gameplay.MoveCanon.performed += ctx => moveCanon = ctx.ReadValue<Vector2>();      
49.         controls.Gameplay.MoveCanon.canceled += ctx => moveCanon = Vector2.zero;              
50.  
51.         controls.Gameplay.MoveCrosshair.performed += ctx => moveCrosshair = ctx.ReadValue<Vector2>();
52.         controls.Gameplay.MoveCrosshair.canceled += ctx => moveCrosshair = Vector2.zero;
53.     }
54.  
55.     void FixedUpdate()
56.     {
57.         //TODO clamp values between X and Y rotations so canon and camera do not rotate too crazy when the player is aiming
58.  
59.      
60.         //  adding the camMovSpeed multiplier fixed the issue where the input was not
61.         //  registered in the Game view (even though it was in the Scene view
62.         Vector2 m = new Vector2(-moveCanon.x, moveCanon.y) * Time.deltaTime *camMovSpeed;      
63.         cam.transform.Translate(m, Space.World);
64.      
65.      
66.         canon.transform.rotation = Quaternion.LookRotation(-cursor.transform.position, Vector3.up);
67.  
68.  
69.         Vector3 c = new Vector3(-moveCrosshair.x, 0.0f, -moveCrosshair.y) * Time.deltaTime * canonRotateSpeed;
70.         cursor.transform.Translate(c, Space.World);
71.      
72.     }
73.  
74.  
75.     void Launch()
76.     {
77.         Rigidbody projectile = Instantiate(rb, transform.position, transform.rotation);
78.         Vector3 Vo = CalculateVelocity(cursor.transform.position, transform.position, 1f);
79.  
80.      
81.         projectile.velocity = Vo*Time.deltaTime*launchSpeed;
82.  
83.         //the below code line is not working at all, I am only able to instatiate the projectile
84.         //projectile.AddForce(xLaunchValue, yLaunchValue, zLaunchValue*launchSpeed, ForceMode.Impulse);
85.  
86.  
87.         cursor.transform.position = cursor.transform.position + Vector3.up * 0.1f;      
88.  
89.     }
90.  
91.         void OnEnable()
92.     {
93.         controls.Gameplay.Enable();
94.     }
95.  
96.     void OnDisable()
97.     {
98.         controls.Gameplay.Disable();
99.     }
100.  
101.  
102.     private Vector3 CalculateVelocity(Vector3 target, Vector3 origin, float time)
103.     {
104.         //define the distance x and y first
105.         Vector3 distance = target - origin;
106.         Vector3 distanceXZ = distance;
107.         distanceXZ.y = 0f; //this way it will only keep value of x and z component
108.  
109.         //create a float that represents out distance
110.         //vertical y dist
111.         float Sy = distance.y;
112.         float Sxz = distanceXZ.magnitude; //dist of x z plane or length of the vector
113.  
114.         //calc velocity - Vars V1
115.         float Vxz = Sxz / time;
116.         float Vy = Sy / time + 0.5f * Mathf.Abs(Physics.gravity.y) * time;
117.  
118.         Vector3 result = distanceXZ.normalized; //this will return the direction of our factor
119.         //use V1 variables to our new created vector ^
120.         result *= Vxz;
121.         result.y = Vy;
122.  
123.         return result;
124.     }
125. }

 

Well check the obvious issues first:
- Does Vo / CalculateVelocity() return a valid value?
- Is launchSpeed set to 100 in the inspector still (maybe it serialized at 0 and you changed the default value later)?
- Is something else setting the velocity on the projectile?

 

Thank you for the suggestions, I just got done checking each one and found the issue: