How to get a position directly in front of the player?

[Kriptikz]

How do I get 0.5 block space directly in front of the player no matter which direction they are facing, even on diagonals? Also how would I transition this 0.5 or 0.2 spots to the right?

What I'm trying to do is spawn particles above an item while its being used, I'm doing this in onUsingTick and I don't think the item has a position I can use and just move the y position, So I'm using the player position and direction they are facing. 

[Draco18s]

So. This is what vectors are for.

The player has a vector that is their "front" called "LookVec" (Search the EntityPlayer class).

Take that vector, multiply by 0.5 (or 0.2 or whatever), add their current position, and voila. You have the spot a half-block in front of them.

[Kriptikz]

51 minutes ago, Draco18s said:

So. This is what vectors are for.

The player has a vector that is their "front" called "LookVec" (Search the EntityPlayer class).

Take that vector, multiply by 0.5 (or 0.2 or whatever), add their current position, and voila. You have the spot a half-block in front of them.

Awesome! Thank you very much.