Hi,
I'm not sure if I'm doing the fight correctly.

About being hit or not :
example
When an adversary shots a PC with a gun , I roll the dice which are based on his ability to use that specific weapon type: heavy . And I add the difficulty dice based on the "ranged attack difficulty". Eventually, I add more difficulty dice if the adversary is engaged or not. Last I add a set back die if the PC is in cover.
Then I roll.
If the result is at least +1 success, then the PC is hit.

Is it correct?
Does exist enything else that the PC can do to avoid being hit? How? And how it works with the dice?

About jedi.
Exaclty, how it works the possibility to block the shot with the lightsaber? Or even send back the shot to the adversary?

Thank you!

Yes. One uncanceled success showing means a hit.

Your other two questions, yes, there are Talents that can modify the pool further that you roll making it harder to be hit.

Jedi have Talents called Parry and Reflect which are reactionary incidentals that allow them to spend Strain and reduce the damage of a hit, or even bounce it back.

As 2P said, there are several Talents (and Force powers) that can upgrade or increase the number of negative dice in the attacker's pool, McDougal you harder to hit. For ranged attacks specifically, you have:

Side Step: This talent is a maneuver, allowing you to spend up to 1 strain per rank you have, and upgrade ALL ranged attacks made against you for the round an equal number.

Dodge: Similar to Side Step, but Dodge only applies to one attack. However, it's an incidental you choose to use when the attack is made, so for the "higher" cost you can preserve your action economy.

Sixth Sense: This increases your Ranged Defense by 1, which adds another Setback die to the attacker's roll.

Sense Advantage: A once per session ability, this talent lets you add two Setback to any enemy roll you want. It can definitely be used on an attack to allow you to increase you chances of getting out of the way.

Sense Force Power (Defensive Awareness Control Upgrade): The first Control upgrade on the left-hand column of the Sense power. You have to take an action to commit a Force die first, but once you do, you can choose one attack against you each round (ranged or melee) to get the difficulty upgraded at no additional cost. You are just that good at dodging. With the next upgrade down the column you can do this for two attacks, and with the next one each attack you upgrade is upgraded twice.

For using your lightsaber to defend yourself, once again Mr. Pirate is right. Reflect allows you to reduce the damage you take from a ranged attack, while Parry does the same for melee attacks. These talents cost 3 strain to use, but reduce the damage by 2 + your ranks, in addition to your soak. So with one rank it's a straight trade off 3 strain to block 3 wounds, but half of the lightsaber trees have three ranks (Soresu, Shien, and Niman), so with one of those you could be blocking 5 extra wounds.

If you want your damage reduction to be a bit more mystical rather than martial, you can also use the Protect power to gain some DR, although that requires Force rating 3 and a fairly healthy investiture of XP.

2 minutes ago, Absol197 said:

As 2P said, there are several Talents (and Force powers) that can upgrade or increase the number of negative dice in the attacker's pool, McDougal you harder to hit.

Should I know this McDougal? Or did you just suffer from a case of Total Word Replacement, like you and Maelora's Werewolf: The Forsaken thing?

1 minute ago, KungFuFerret said:

Should I know this McDougal? Or did you just suffer from a case of Total Word Replacement, like you and Maelora's Werewolf: The Forsaken thing?

My phone thinks I know him, but I don't think I actually do. Regardless, he's gone now .

What we did for our games was to incresse the diffculty by one dice, meaing short range is 2 dice, medium is 3 and so on and it has worked wonderfully.

On 12/26/2017 at 3:19 PM, amuller93 said:

What we did for our games was to incresse the diffculty by one dice, meaing short range is 2 dice, medium is 3 and so on and it has worked wonderfully.

Did you also increase the difficulty to fire a ranged light or ranged heavy weapon at engaged range? I ask because short range should be easier to fire from than engaged.

14 hours ago, GroggyGolem said:

Did you also increase the difficulty to fire a ranged light or ranged heavy weapon at engaged range? I ask because short range should be easier to fire from than engaged.

That we did. All combat checks are upgraded one step. So melee attacks are 3 purple, long range ranged are 4 and so on.

You get a similar effect being liberal with setback dice for the environment.