# User:Robar/Code snippets

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# My code snippets

- During my researches in Robocode I created many educating and interesting codes, which I'd like to share with you.
- Many places I use variables called 'hot' and 'absB'. They are exactly what their names mean: Head-on angle and Absolute Bearing, both in radians.
- The codes are not squeezed, they are supposed to be readable and obvious.

## Quick Linear Targeting with Angular Velocity

- This works quite well, but it's not smaller and a bit less accurate than the popular latvel-type. Otherwise, this shows very spectaculary what exactly Angular Velocity is.

```
public double do_Angular_Velocity_Gun(ScannedRobotEvent e){
double av = (e.getVelocity()*Math.sin(e.getHeadingRadians()-absB))/e.getDistance();
return hot+av*(e.getDistance()/bulletVel);
}
```

## Quick Linear Targeting with Maximum Escape Angle

- This one is even less accurate but an interesting use of Maximum Escape Angle. ;)

```
public double do_MaximumEscapeAngle_gun(ScannedRobotEvent e){
double lateralDir = Math.signum(e.getVelocity()*Math.sin(e.getHeadingRadians()-absB));
double mea = Math.asin(8.0/bulletVel);
return hot + mea*lateralDir;
}
```