# alexsok90

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1. ## [2D Java Help] Need help with pong remake.[2D Java Help]

public float XVel = 1.0f; public void BallMove() { if (ball.X < 0 || ball.X > 420) XVel *= -1; ball.X += XVel; }   Something more readable.

#deleted
3. ## Turret rotation

These values don't make any sense. Are you sure you are using Atan2 method? Also keep in mind that this code makes use of radian angles (not degrees). Or maybe your rotationSpeed value is too high. In my project it was like 0.02f (i was calling this method every update).   #EDIT You can also try replacing that "else if" with "if" only. Or swapping Atan2 arguments from "src - target" to "target - src".
4. ## Turret rotation

Ah, sorry - this topRotation should be currentRotation. I was renaming the variables and missed this one.
5. ## Turret rotation

Here is the code from tank game I developed. It rotates the turret clockwise or counter-clockwise (depeding on which path is shorter) with desired speed.   destinationRotation = Math.Atan2(turret.Y - target.Y, turret.X - target.X) + Math.PI; if (destinationRotation != currentRotation) { if (destinationRotation > currentRotation) { if (currentRotation < destinationRotation - Math.PI) currentRotation -= rotationSpeed; else currentRotation += rotationSpeed; } else if (destinationRotation < topRotation) { if (currentRotation > destinationRotation + Math.PI) currentRotation += rotationSpeed; else currentRotation -= rotationSpeed; } if (currentRotation > Math.PI * 2.0f) currentRotation = 0; if (currentRotation < 0) currentRotation = Math.PI * 2.0f; }