Is there an API/Macro I can use a single roll for 3 calculations?

I'm running D&D Basic (with 5e Character sheets) and I have a 'generic' monster using thac0 that i can grab for any normal rabble. I want to roll a d20 once and it calculate a hit with thaco of 19,18,17,16 and 15. It would look something like this on the attack line, MonsterA hits AC 8|7|6|5|4. So in the above case an '11' was rolled on the d20 resulting in the above hits to ac based on a 19|18|17|16|15 THAC0. This will fit for many many monsters by my looking at it's THAC0. For example, seeing a 17 THAC0 for my goblin chieftain and the resulting roll knowing exactly which AC I hit (6 in this example). I have Pro status and can use API's. I want to make a custom macro using this or some other API. Anyone have any experience with this? Currently I use the standard formula that looks like this..&{template:default} {{name=Monster}} {{Attack=hit AC [[@{Monster|thac0}-{1d20}]]|[[@{Monster|thac0}-1-{1d20}]]|[[@{Monster|thac0}-2-{1d20}]]}} {{causing=[[d6]] damage}} for THAC0 of 19,18,17 (the formula uses THAC0 19 from the sheet and then subtracts 1 then 2 for the subsequent rolls). But doing it this way uses three separate d20's and the end result looking often times like this "MonsterA hits AC -1|9|3. As you can see the first roll (19 THAC0) hit AC -1 but the lower THAC0's only hit a worse AC because they used a separate roll that was in this case worse. Sure it works, but players look at it like "waitwut?". I just want it to look cleaner.

It can be done somewhat with PowerCards, I think.

ok - really quick and dirty using PowerCards (I dont have a D&D game set up so I dont have AC or any of that so its not pretty) A drop down query pops up and asks you for the monsters THAC0. you answer. it then subtracts that number from a 1d20 roll (looking at this the math might be backwards as I have not used THAC0 in 20 years) - it spits out the result and compares it to the targets DEF (switch to AC for you I think).  This will only report for the THAC0 you select so it should be more clear for your players (hovering over the call out box will show the d20 roll +/1 your THAC0 modifier) If you get this to work, you then could add a 2nd roll query to put in your damage options and have them roll on a success (1st --?? line).  !power{{ --emote|The Monster attacks! --name|THAC0 Roll --Result|[[ [$result] ?{THAC0|20, 0|19, -1|18, -2} + 1d20]] --?? $result >= @{target|DEF} ?? hit|Hit (insert roll query for damage options here) --?? $result < @{target|DEF} ?? miss|Miss (insert cute 'you missed'  text here) }} 

Existing API's like PowerCards should be able to do it, or by creating your own little API scriptlet to make a roll and assign it to a variable that you can re-use. Otherwise base macro system would need to be broken into two separate macros... one to roll, and another with a roll query to generate the table. ex.  Macro1:   /w GM Attack: [[d20]] Macro2: .&{template:default} {{name=Monster}} {{Attack=hit AC [[ @{Monster|thac0} -  @{What did they roll?|0} ]] | [[ @{Monster|thac0} -1 - @{What did they roll?|0}  ]] | [[ @{Monster|thac0}-2 - @{What did they roll?|0}  ]] }} {{Causing=[[d6]] damage}}

The problem with drop down queries is in a room with 17 male goblins and 23 female goblins all getting an attack, I don't want to answer 40 queries each round. I guess I'll have to stick with the individual rolls for each thaco in my macro.

yeah, that can be tedious - but not sure its more or less tedious than having multiple answers to manually parse each round.  could do a single power card that gives you X number of results - then just go down the list of badguys.  hit macro - 1st time is for male goblins - pick your THAC0 1 time - it poops out a list of say 20 rolls. use the 1st 17 of them. hit macro again. - 2nd time is for female goblins - pick your THAC0 1 time - it poops out a list of 20 rolls. use all 20. on a total side note - I am so happy that most games have stopped giving a crap about male vs. female in their mechanics.  

!power {{ --emote|The Monster attacks! --name|THAC0 Roll --Result 1|[[ ?{THAC0|20, 0|19, -1|18, -2} + 1d20]] --Result 2|[[ ?{THAC0} + 1d20]] --Result 3|[[ ?{THAC0} + 1d20]] --Result 4|[[ ?{THAC0} + 1d20]] --Result 5|[[ ?{THAC0} + 1d20]] }}   In this one it only asks you one time what the THAC0 is then spits out 5 'rolls' - with a bit of time you could even have a damage roll following the attack roll so you have it ready IF the result is a hit. I don't think you could have it automatically tell you if its a hit or miss because you would have different targets with different AC's  but in this example you could see that Fred has an AC of 17, and the 1st 5 goblins all attack Fred... Fred is hit 2 times (and takes x damage if you add that part to the macro). 

Something like this?

You can use Extended Expressions to do something like: !extend &{template:default} {{name=Monster}} {{Attack=hit AC `@{Monster|thac0}-1d20[roll]`|`@{Monster|thac0}-1-${roll}`|...}} {{causing=[[1d6]] damage}} But it might be a better idea to use individual character sheets for each monster type and then do: &{template:default} {{name=Monster}} {{Attack=hit AC [[@{selected|thac0}-1d20]]}} {{causing=[[1d6]] damage}}

GenKitty wanted me to write something like GroupInitiative but would do group ability checks. That sounds like what you are describing. I should probably dust that project off at some point. 

OldSchoolChris said: Something like this? YES! Exactly! Could you post the code for that please?

I used targeted the monster token that was doing the attack as the token. If you want to have one particular token you use for all monster combat rolls, I can explain that as well. Same principle, but you use a token that you never move from it's page and you need to adjust the !token-mod and roll template accordingly. You set the attack roll into a token bar via !token-mod as so: !token-mod --set bar2_value|[[1d20]] ( i don't use bar two on my monsters tokens, so this worked fine for me) Have the token's bar 2 associated with the monster's @{Thac0Roll} attribute (that you create) Then you call your template: &{template:5eDefault} {{title=Monster's Attack}} {{subheader=[[@{ThAC0}]]**|**[[@{ThAC0}-1]]**|**[[@{ThAC0}-2]]**|**[[@{ThAC0}-3]]**|**[[@{ThAC0}-4]]}} {{freetext=d20 Result:[[@{Thac0Roll}]] AC hit:[[@{ThAC0}-(@{Thac0Roll})]]**|**[[@{ThAC0}-1-(@{Thac0Roll})]]**|**[[@{ThAC0}-2-(@{Thac0Roll})]]**|**[[@{ThAC0}-3-(@{Thac0Roll})]]**|**[[@{ThAC0}-4-(@{Thac0Roll})]]}} I use the 5eDefault roll template in all my sheets. I like freetext!!

manveti said: You can use Extended Expressions to do something like: !extend &{template:default} {{name=Monster}} {{Attack=hit AC `@{Monster|thac0}-1d20[roll]`|`@{Monster|thac0}-1-${roll}`|...}} {{causing=[[1d6]] damage}} But it might be a better idea to use individual character sheets for each monster type and then do: &{template:default} {{name=Monster}} {{Attack=hit AC [[@{selected|thac0}-1d20]]}} {{causing=[[1d6]] damage}} It seems the "!extend" command doesn't work at all for me. Nothing happens, no error message of any type, when I attempt that macro. (I left out that last "|...")