Question on casters

So I noticed that when I cast a spell it will still go off even if I'm only like 70% done casting and I move. Is this lag or what is going on here?

It’s called slidecasting and it’s basically weaponizing your ping to the servers to grant you more mobility

it's a quirk of the game's progress bar system
if you move when there is 0.5s left to a cast it goes off
it's called slidecasting

Thanks!

/10char

Keep in mind enemies also get this feature! So if you happen to move out of an aoe just before it goes off but then you still happen to get hit this is also why... There is a tiny delay to where you see your character on screen vs where servers actually depicts you. So for slide casting you move on screen but there is still a teeny delay where servers depicts still standing there casting...

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Originally Posted by Darkpaw

It’s called slidecasting and it’s basically weaponizing your ping to the servers to grant you more mobility

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Not quite.

I think (and anyone who's better-informed, please correct any details I get wrong) that it's an intentional feature of the game that was added [citation needed] time ago as compensation for the game's dubious handling of client-server relationships.

Basically, the cast time listed in your tooltip is actually 0.5s longer than "reality", to provide "slush space" and prevent issues where the cast seems to complete on the player's screen, but the server doesn't agree yet, so even though your cast bar finished, you move and suddenly see yourself interrupted.

This can be exploited by people who know about it to just ignore the last 0.5s of a castbar, regardless of the cast length (and thus makes shorter casts easier to slidecast out of, as the portion you can "cheat" is proportionally larger).

There's another bit of extra slush space that depends on latency as well, but I think the 0.5s is the fixed baseline amount of slidecast breathing-room, even if you were playing from inside the server room.

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Originally Posted by Ransu

Great way to take advantage of slidecasting is to place an emote icon on your hotbar. When all your abilities are greyed out while casting, the emote icon will light up a little earlier than other icons which means you can move without your cast getting canceled.

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Just to note that in my own testing, you can actually slidecast sooner than the action icon lights back up, so this method can "cost" you slidecast time vs. learning to do it by muscle-memory or castbar timer.

Great way to take advantage of slidecasting is to place an emote icon on your hotbar. When all your abilities are greyed out while casting, the emote icon will light up a little earlier than other icons which means you can move without your cast getting canceled.

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Originally Posted by Ransu

Great way to take advantage of slidecasting is to place an emote icon on your hotbar. When all your abilities are greyed out while casting, the emote icon will light up a little earlier than other icons which means you can move without your cast getting canceled.

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Yep this is the pro strats right here.

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Originally Posted by Canadane

Yep this is the pro strats right here.

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You can take it further by placing a hot bar with an emote on it at 200% behind where your cast bar appears and fiddle with it so that not only will it light up, but as soon as your cast progress reaches the icon itself you know that you are safe to move.

On mobile so I can’t timestamp but 22-23 seconds into the video you can see it in action https://youtu.be/TyveWyGBKCU

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Originally Posted by Eorzean_username

I think (and anyone who's better-informed, please correct any details I get wrong) that it's an intentional feature of the game that was added [citation needed] time ago as compensation for the game's dubious handling of client-server relationships.

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I think it's just how casting has always worked. Even in FFXI, since 2002. But it wasn't really something people used like a mechanic there since that game is so much slower paced and doesn't have manual dodging. But for most spells you could usually move once the cast bar was past ~70% and not interrupt yourself.