TowerDefense Game, shooting at Target!

Questions & Answers
1

Hey there, i know this question has been asked a few times here, but none of these answers helped me.

17911-help1.png
17911-help1.png1350×536 415 KB

I have the following information:

`
float speed = target.GetComponentInChildren().getCurrSpeed();

Vector3 direction = target.GetComponentInChildren().getCurrDirection();

Vector3 enemyPos = new Vector3(target.position.x,target.position.y,target.position.z);

Vector3 towerPos = new Vector3(transform.position.x,transform.position.y,transform.position.z);

Vector3 LookAt = enemy - tower;
`

Is there a simple way of doing the math?
Thank you!

2

The easiest calculation I can think of is an approximation of the aim position. I didn’t do any tests but it should be something like:

  • find the time the bullet needs to reach the target (tBullet = sBullet / vBullet)
  • find the distance the enemy can travel in that time (sEnemy = vEnemy * tBullet)

Now because the tower rotates to that position sBullet will change and so tBullet does. You would need to repeat that calculation for more accuracy, but I guess it will be good enough if you execute the calculation only once.

Don’t know if there is an easier way.

3

You can combine your solution with a guided missile which automatically follows the target. So you can be 100% sure, that your missile hits the target, even how komplex, tortuous or chaotic your path is.

4

Usually tower defense games cheat instead of really calculating. If your bullet is fairly fast, they usually just put a script on the bullet to follow it. Something like this:
transform.lookAt(enemyPos);

And move the object forward or add velocity to the rigidbody of the bullet if any.
And add maybe a destroy condition, if the bullet traveled too far from tower in case you have enemies witch are too fast to shoot at.