Grenade throw logic

Question

My case is:

We are developing a kart racing game, and the players are fighting with each other and trying to reach the finish line.

The thing is, I am confused over how to implement following logic:

The player has missile and grenade as weapons.

I can do missile lock, then the missile follows the enemy and hits the enemy with it. (Vector3.MoveTowards()).

But how would I do grenades?

Suppose both enemies and players are moving forward on the Z axis:

Case 1:

Player throws grenade at enemy.

It goes and hits enemy.

**I can do this the same way as missile logic.

Case 2:

Player throws grenade at enemy.

Enemy changes position on the X axis (right, left).

Grenade should not follow player to the next position.

**I am confused about this case: how to let grenade not change its position and get the blast on surface??

Answer 1

You could model the grenade as a conventional rigidbody with an initial speed and have it affected by gravity. Add a script with an OnCollision method to trigger when it touches a vehicle or the ground.

Answer 2

When throwing the grenade, take a copy of the enemy's original position Vector3. Move towards that instead of towards the enemy GameObject. Alternatively spawn in a pre-cache'd "GrenadeTarget" GameObject at the original enemy position as a marker and move the missile towards that.