Deny Spell Casting

[Noobsmoke]

Hello guys, I'm making a arena like map and I need some help.
The problem is that I want heroes to be able to cast spells only across the arena. So when they cast a spell out of arena (let's say blink) I want to intrerupt them and show a message to the player ("Invalid Zone" or something )

That's what I tried and it works good enough

• Cast DeadZones
  • Events
    • Unit - A unit Begins casting an ability
  • Conditions
    • (Level of Dummy (Misc) for (Triggering unit)) Equal to 0
  • Actions
    • Set Game_LeakPoint = (Target point of ability being cast)
    • Unit - Create 1 Dummy (0) for Neutral Hostile at Game_LeakPoint facing Default building facing degrees
    • Unit - Add a 1.00 second Generic expiration timer to (Last created unit)
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • (Arena Region <gen> contains (Last created unit)) Not equal to True
      • Then - Actions
        • Unit - Order (Triggering unit) to Stop
      • Else - Actions

But it bugs when you cast non-target spells (casting non-target spells creates my dummy in middle of arena )

Can anyone help ?

 

[rulerofiron99]

• Set Game_LeakPoint = (Position of triggering unit)

Then check again.

ALTERNATIVELY:
Catch the spell when the unit is ordered to cast it - you'll have to separate this into 3 phases - one for no target, one for unit target, and one for point target.

 

[Noobsmoke]

• Set Game_LeakPoint = (Position of triggering unit)

Then check again.

ALTERNATIVELY:
Catch the spell when the unit is ordered to cast it - you'll have to separate this into 3 phases - one for no target, one for unit target, and one for point target.

1.Tested -> Not working at all.
2.I have too many spells and checking if casting spell is non-target / non-point it's not a good option because it will dramatically increase fps.

Any other suggestions ?

 

[ap0calypse]

Instead of creating a dummy, there's a condition like this:

• (ArenaRegion contains Game_LeakPoint) Equal to False

Also, ruleofiron99 is correct. (No target shouldn't be checked though, as it should always work).
Edit: So just creating an Or - Condition with all point-target spells won't do? I think it wouldn't increase FPS at all.

 

[Noobsmoke]

Ok then, if there is no other efficient way. Thanks

 

[defskull]

because it will dramatically increase fps.

An increased FPS is a good thing, a decrease of FPS is a bad thing, I'm pretty sure you meant the second one ;p

 

[ap0calypse]

Hmh, I just thought of something else.

• Stop Casting
  • Events
    • Unit - A unit Begins channeling an ability
  • Conditions
  • Actions
    • Set tempLoc1 = (Target point of ability being cast)
    • Set tempLoc2 = (Center of (Entire Map))
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • (Region 000 <gen> contains tempLoc1) Equal to False
        • (X of tempLoc1) Not equal to (X of tempLoc2)
        • (Y of tempLoc1) Not equal to (Y of tempLoc2)
      • Then - Actions
        • Unit - Order (Triggering unit) to Stop
      • Else - Actions
    • Custom script: call RemoveLocation( udg_tempLoc1 )
    • Custom script: call RemoveLocation( udg_tempLoc2 )

If the order is an order with no target, then "Target point of ability being cast" would be the same as "Center of (Playable Map Area)".
Thus, if tempLoc1 == tempLoc2, then the spell should always work (as it doesn't have a target and therefore cannot be cast outside the area).
But if they are not the same, that means the spell has a target (whether that is a unit or point doesn't matter). If that point is outside the area, stop the caster.

Tested it for all 3 types, it should work.

 

[defskull]

Unit - A unit Begins channeling an ability

Are you sure it's channeling instead of casting ?
Also, to order unit to stop right after an Event, does that works ?
I always add a Wait of 0.00 seconds, it works (it is MUI, don't worry).
If I don't add that, the Stop Unit action never gets fired (it happens too fast, that's why)

 

[ap0calypse]

Are you sure it's channeling instead of casting ?

Since you want to cancel the order, yes.
If an ability has a channel-time of 2 seconds, and he casts it outside the arena, then you'd have to wait 2 seconds for a spell that will fail anyway.

 

[defskull]

I hope you read, I edited the post.

 

[ap0calypse]

It should definitely work, yes.

Tested it for all 3 types, it should work.

I also tested it with a lot of different abilities, all of them were cancelled when they were cast at a target outside the arena.

 

[Noobsmoke]

What if you cast an unwanted spell (point) in Center of Playable area ?
System won't stop it

 

[ap0calypse]

What if you cast an unwanted spell (point) in Center of Playable area ?
System won't stop it

That never happens. No matter how hard you may try.
The coordinates should be exactly 0.000. Even if you have 0.001 as 1 of the coordinates it will cancel the order (and trust me, to aim that well with even 1 coordinate is something I have yet to see - to do it with both is outright impossible).
If you want to prove me wrong, then go ahead. I would actually love that

Edit: I actually tested it. Since I couldn't get it right, I tried to do it with cheats.
As said before, unless you're more accurate than "0.001", the spell will get canceled (0.0009 and less will allow the spell to be cast).

I also noticed it should be "Center of (Entire Map)". Changed that in the original post as well.