What is the best (most compact) way to hand this situation:
One or more arguments to a method call depends on some condition, while the rest of the arguments are identical?

For example-- you want to

```
DeathRay mynewWpn = new DeathRay(particle.proton, chassisColor.BLACK, oem.ACME)

```

if

```
enemy_composition == nature.ANTIMATTER

```

but 

```
DeathRay mynewWpn = new DeathRay(particle.anti-proton, chassisColor.BLACK, oem.ACME)

```

if 

```
enemy_composition == nature.MATTER

```

Obviously you can `if-else` but it looks unnecessarily long when there are a lot of arguments or more than one conditional argument. I have also done this creating an argument with an `if-else` beforehand and then calling the method. Again, that seems kind of clunky. Is there some sort of inline syntax similar to an Excel if-statement?