Unity make a missile follow a given trajectory - unity3d

Question

Im making a game where you can fire missiles at tanks. I want the missile to follow this trajectory:
https://imgur.com/a/bRQ44zq
I have tried a few things but no luck. Does anyone has an idea on how I could achieve this trajectory?
Thanks in advance for any help.

Answer 1

You should search for: ballistics, cannon, ballistics physics, ball parabola, etc.
Here is an example of of shooting ball at transform:
https://answers.unity.com/questions/148399/shooting-a-cannonball.html
I don't have Unity open right now, so I can't give you full code. By the way, try to change the code below for your own use and let me know in comments.
function BallisticVel(target: Transform, angle: float): Vector3 {
var dir = target.position - transform.position; // get target direction
var h = dir.y; // get height difference
dir.y = 0; // retain only the horizontal direction
var dist = dir.magnitude ; // get horizontal distance
var a = angle * Mathf.Deg2Rad; // convert angle to radians
dir.y = dist * Mathf.Tan(a); // set dir to the elevation angle
dist += h / Mathf.Tan(a); // correct for small height differences
// calculate the velocity magnitude
var vel = Mathf.Sqrt(dist * Physics.gravity.magnitude / Mathf.Sin(2 * a));
return vel * dir.normalized;
}
var myTarget: Transform; // drag the target here
var cannonball: GameObject; // drag the cannonball prefab here
var shootAngle: float = 30; // elevation angle
function Update(){
if (Input.GetKeyDown("b")){ // press b to shoot
var ball: GameObject = Instantiate(cannonball, transform.position, Quaternion.identity);
ball.rigidbody.velocity = BallisticVel(myTarget, shootAngle);
Destroy(ball, 10);
}
}