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Question by Alex_Gray · Aug 06, 2012 at 02:01 AM · aimtower defense

Formula to calculate a position to fire at?

Edit: Is there a formula that calculates the position a bullet would meet an enemy depending on the bullet's speed and the enemy's speed and direction?

In example: Let's take a 2-dimensional grid (x,y) and there is a tower at (1,1) and a enemy at (4,2), the enemy lies within the tower's range so the tower fires a bullet. The bullet travels at a speed of 3 (Units/Sec). The enemy is traveling at a speed of 2 (Units/Sec) at a 52 degree angle... Where would the tower have to shoot the bullet in order to hit the enemy at it's current velocity, while taking into consideration the bullet's speed?

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Answer by UnityM0nk3y · Apr 05, 2021 at 03:00 PM

alt text

I used a "Physical Child Object".

Then I made the turret lock on to that object, instead of the "Parent" that I'm firing at.

When the Parent moves, the child "Offset Object" applies a offset into the direction the Parent is moving. (This can be seen by the yellow raycast).

This was done with very little math, and coding.

A more "Physical Approach", if you may.


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