[General] Stop a unit from casting an ability

[sniffitz]

Hello,

I have a morph ability based on Bear Form that requires an item in order to work. All is fine and dandy but I cannot get the unit to not cast the ability when the item is not present in the inventory - the trigger detects that there is no item, displays the correct message but the ability is still cast.

Spoiler

• Switch Test
  • Events
    • Unit - A unit Starts the effect of an ability
  • Conditions
    • (Ability being cast) Equal to Switch Attack (Alliance)
  • Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • Or - Any (Conditions) are true
          • Conditions
            • ((Triggering unit) has an item of type itmBows[0]) Equal to False
            • ((Triggering unit) has an item of type itmBows[1]) Equal to False
            • ((Triggering unit) has an item of type itmBows[2]) Equal to False
            • ((Triggering unit) has an item of type itmCrossbows[0]) Equal to False
      • Then - Actions
        • Unit - Pause (Triggering unit)
        • Unit - Order (Triggering unit) to Stop
        • Unit - Unpause (Triggering unit)
        • Game - Display to (Player group((Owner of (Triggering unit)))) the text: You need a ranged w...
        • -------- To stop the spell from switching without the requirements --------
      • Else - Actions

I tried 4-5 variations of this trigger and nothing seems to work.

Any help would be much apreciated.

Cheers

 

[LordDz]

Replace a unit starts the effect of an ability, with a unit begins casting an ability.

 

[sniffitz]

Replace a unit starts the effect of an ability, with a unit begins casting an ability.

Nope, that doesn't work either unfortunately.

 

[silverlight33]

Maybe make a dummy channel ability that will trigger the morph only if conditions are met? That worked for me.

 

[Sieben]

Use a dummy spell.
Your dummy spell must be a spell that does nothing. Give it to your unit. Your normal Switch Attack ability must be hidden (you can do so by setting the position to 0 / -11 - hold shift when changing -11 so WE can accept negative value). Give it to your unit as well.
And then something like that:

• Switch
  • Events
    • Unit - A unit Starts the effect of an ability
  • Conditions
    • (Ability being cast) Equal Switch Attack (dummy)
  • Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • ((Casting unit) has an item of type [Your Item] Equal FALSE
      • Then - Actions
        • Game - Display to (Player group((Owner of (Casting unit)))) for 30.00 seconds the text: You need a ranged weapon
      • Else - Actions
        • Unit - Order (Casting unit) to Night Elf - Bear Form

 

[sniffitz]

Use a dummy spell.
Your dummy spell must be a spell that does nothing. Give it to your unit. Your normal Switch Attack ability must be hidden (you can do so by setting the position to 0 / -11 - hold shift when changing -11 so WE can accept negative value). Give it to your unit as well.
And then something like that:

• Switch
  • Events
    • Unit - A unit Starts the effect of an ability
  • Conditions
    • (Ability being cast) Equal Switch Attack (dummy)
  • Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • ((Casting unit) has an item of type [Your Item] Equal FALSE
      • Then - Actions
        • Game - Display to (Player group((Owner of (Casting unit)))) for 30.00 seconds the text: You need a ranged weapon
      • Else - Actions
        • Unit - Order (Casting unit) to Night Elf - Bear Form

I hoped it wouldn't have come to that to not clog up the map. But I'll try when I get home.

Thanks!

 

[IcemanBo]

Could you post demo for easyness? I'm sure it can work without a dummy ability, too.

 

[sniffitz]

Could you post demo for easyness? I'm sure it can work without a dummy ability, too.

I've made a system exactly like the one on my map with the same effect.

As you can see, if you have the Bow in your inventory then the ability works fine - switch from melee to ranged - but if you don't have the bow in your inventory then the ability switches icons but the unit does not morph.

 

[IcemanBo]

It worked with catching the order event. Have a look:

 

[sniffitz]

It worked with catching the order event. Have a look:

Holy hell, thanks!
+rep

I'll post in this thread again if I encounter issues with dropping the ranged item while in ranged form. Just in case.