NEW! JASS function pack, please contribute

08-02-2003, 09:53 AM

#16

heres a function i made for a post below, it adds a player leaves event for all players to a selected trigger, call it at map initialization (no editor infront of me for two weeks... some formalities might be a bit off):

Code:

function AnyPlayerLeaves takes trigger targetTrig returns nothing
   local integerA = 1
   loop
      call TriggerRegisterPlayerEvent(targetTrig, ConvertPlayerIndextoPlayer(integerA), EVENT_PLAYER_LEAVE)
      set integerA = integerA + 1
      exitwhen integerA = 12
   endloop
endfunction

btw, data... i'm thinking that this might be one of the most usefull things for advanced mappers out there (i was thinking of making one myself, but in mod form i.e. functions to be used in RPGs or such). with your permission i would like to make a website to easily organize all this, database compatability and all (database compatibility means it will be easier to update and submit, it also means i can add things like "sort by return type" and "sort by submitter" without making millions of html files. I'm thinking the submit system would require a password (given to me, you and maybe a few others) and be made via HTML forms... that way all the functions won't have to go through me. I'f your interested say so but im in alaska untill late august... you'll have to wait untill then.

08-02-2003, 11:14 AM

#17

Targash

This is a fun code ive used in one of my maps. It makes a unit run away from another unit.

Code:

function Flee takes unit fleeingUnit, unit fleeeingFrom returns nothing
    local real sy=GetLocationY(GetUnitLoc(fleeingUnit))
    local real sx=GetLocationX(GetUnitLoc(fleeingUnit))
    local real dy=GetLocationY(GetUnitLoc(fleeingFrom))
    local real dx=GetLocationX(GetUnitLoc(fleeingFrom))
    call IssuePointOrderLocBJ( fleeingUnit, "move", PolarProjectionBJ(GetUnitLoc(fleeingUnit), 512,Atan2BJ(( sy - dy ), ( sx - dx)) ))
endfunction

08-02-2003, 12:04 PM

#18

AIAndy

Quote:

Originally posted by dataangel
Whoa, sync integer is much cleaner than what I was using -- although I'm having trouble digesting parts.

The part where you set source_int[0] to 0 or 1, I get that you're just signing the integer so it's negative or positive. What I don't understand is how the operation for converting the rest of it works:

Code:

  loop
    exitwhen i >= bits_number
    set source_int[i] = ModuloInteger(sum, 2)
    set sum = sum / 2
    set i = i + 1
  endloop

Quote:

You store whether or not the number is odd or even, then you halve it -- why?

Also -- why doesn't it use the encode/decode functions you just defined?

I could use the encode/decode functions but it would be inefficient because in the case of SyncInteger I need to divide the whole integer into bits and put it back together later.
That is what the code you quoted does. It stores the bits of the integer into an array. At the first position the sign bit is stored, then at the second position the least significant bit and so on.
Checking if the integer is odd or even gets you the least significant bit. Then by dividing by 2 you remove that bit and the second bit is now the least significant bit and so on.

08-02-2003, 01:50 PM

#19

Peppar

GetSubString is a function to be used when you need to extract
several strings from a string. Say you have the string:
str = "-give player1 100 gold"
Then the use of GetSubString would give:

GetSubString(str, 0, " ") = "-give"
GetSubString(str, 1, " ") = "player1"
GetSubString(str, 2, " ") = "100"
GetSubString(str, 3, " ") = "gold"
GetSubString(str, 4, " ") = ""

You get the point :P. I thought it would be useful for some
mappers. The delimiters-string contains a set of characters to
determine what separates strings, and the delimiters themselves
are not returned. I don't really know when it could come in use,
but I hate to hardcode things. A space (" ") would be sufficient in
most cases, though.

You might want to rename it, the title I gave it can cause
confusion.

Oh and the MidString and MidStringLength is like SubString, but
they are specialized and simpler to use if you know what you
want. I prefer to use them because I don't have to think as
much :).

Btw, yeah, exitwhen true is great :P.

08-02-2003, 03:35 PM	#20
Aiursrage2k	Ibox2 takes an character and should return its integer equvilent (for using dialog hotkeys). About the single return statement, I was taught it was better programming practice (easier to maintain), its possible this information is false.

08-02-2003, 06:36 PM

#21

dataangel

Quote:

Originally posted by AIAndy

I could use the encode/decode functions but it would be inefficient because in the case of SyncInteger I need to divide the whole integer into bits and put it back together later.
That is what the code you quoted does. It stores the bits of the integer into an array. At the first position the sign bit is stored, then at the second position the least significant bit and so on.
Checking if the integer is odd or even gets you the least significant bit. Then by dividing by 2 you remove that bit and the second bit is now the least significant bit and so on.

Forgive my newbishness in this matter: what does 'least significant bit' mean? Rightmost bit? Leftmost bit? :P

Peppar: Yeah, I finally figured out what was going on as soon as I looked up delimiter :P And I was beginning to think I had more programming experience than anyone around here emote_sweat

Quote:

Originally posted by piro-pion
btw, data... i'm thinking that this might be one of the most usefull things for advanced mappers out there (i was thinking of making one myself, but in mod form i.e. functions to be used in RPGs or such). with your permission i would like to make a website to easily organize all this, database compatability and all (database compatibility means it will be easier to update and submit, it also means i can add things like "sort by return type" and "sort by submitter" without making millions of html files. I'm thinking the submit system would require a password (given to me, you and maybe a few others) and be made via HTML forms... that way all the functions won't have to go through me. I'f your interested say so but im in alaska untill late august... you'll have to wait untill then.

I've actually been thinking about this, because it's very clunky to store it all in a text file. I was thinking of the guy who made the JASS reference on sourceforge though, because it looks like he already has code for parsing .j files =)

I'll ask around.

08-02-2003, 06:40 PM

#22

dataangel

Quote:

Originally posted by Targash
This is a fun code ive used in one of my maps. It makes a unit run away from another unit.

Code:

function Flee takes unit fleeingUnit, unit fleeingFrom returns nothing local real sy=GetLocationY(GetUnitLoc(fleeingUnit)) local real sx=GetLocationX(GetUnitLoc(fleeingUnit)) local real dy=GetLocationY(GetUnitLoc(fleeingFrom)) local real dx=GetLocationX(GetUnitLoc(fleeingFrom)) call IssuePointOrderLocBJ( fleeingUnit, "move", PolarProjectionBJ(GetUnitLoc(fleeingUnit), 512,Atan2BJ(( sy - dy ), ( sx - dx)) )) endfunction

Instead of Atan2BJ, why don't you just use:

Code:

AngleBetweenPoints(GetUnitLoc(fleeingFrom), GetUnitLoc(fleeingUnit))

Unless I'm missing something? If not lemme know and I'll add it to the pack with that.

08-02-2003, 06:42 PM	#23
hodi	How can I implement this fleeing thing in my Map? I want all Sheeps to flee from my Units when theyÂ´re in Range.

08-02-2003, 06:53 PM

#24

dataangel

Quote:

Originally posted by hodi
How can I implement this fleeing thing in my Map? I want all Sheeps to flee from my Units when theyÂ´re in Range.

Unit group all sheeps in range and then do a custom script action. I don't know what unit you want them to be fleeing from, so for the sake of example we'll say it's the triggering unit:

call flee(GetEnumUnit(), GetTriggeringUnit())

GetEnumUnit() is the same thing as Picked Unit (the sheep). Change GetTriggeringUnit() to the unit you want them to flee from.

08-02-2003, 07:03 PM

#25

dataangel

As long as I have the JASS experts attention --

I would be FOREVER THANKFUL to someone who could devise a function to get rid of the following problem.

Whenever you want to do actions for all units in a unit group or player group, you have to specify another function that contains the actions to perform on the picked units/players. e.g:

Code:

function AOEDamageByUnitSimple takes unit whichUnit, real damage, real radius, boolean friendlyfire returns nothing
if (friendlyfire) then
        call ForForce( GetForceOfPlayer(GetOwningPlayer(whichUnit)), function SubtractLife )
    else
    endif
endfunction

The problem is that I can't take the damage variable passed to AOEDamageByUnitSimple and pass it to SubtractLife. The following gives a compiler error:

Code:

call ForForce( GetForceOfPlayer(GetOwningPlayer(whichUnit)), function SubtractLife(damage) )

Even if I've setup SubtractLife to take an integer. :/

I'm worried that I'm gonna end up having to resort to globals, which would suck :P

AH -- but that's not the only problem. Since you have to call a separate function, you if you return it doesn't quit the calling function, only the unit-group actions. Check out the unit type is in region boolean function in the pack to see my kludgy workaround for this.

If anyone knows how to solve either of these without globals... HALLELUJAH!

08-02-2003, 07:23 PM	#26
weaaddar	Just what does Forforce take? Does subtract life return what forforce needs? I'm not jass expert but you should probably tell us...

08-02-2003, 07:32 PM

#27

dataangel

Quote:

Originally posted by weaaddar
Just what does Forforce take?
Does subtract life return what forforce needs?
I'm not jass expert but you should probably tell us...

Well, I kind of assumed you'd ecognize one of the functions built into war3 weaaddar :////

ForForce = Pick Every Player in Player Group

SubtractLife doesn't return anything -- you're not passing what it returns, but the function itself.

08-02-2003, 07:38 PM	#28
weaaddar	are you positive that its expecting a function and not say something different? Also doesn't the Forgroup require picked units or whatever to actually function? Edit: Theres unfortunate, most painful probability that the forgroup function only works with a specific group of functions...

08-02-2003, 07:46 PM

#29

Peppar

I don't have any "real" solution to your problem but you might
want to consider using the Enum-variables that are reserved for
the functions in Blizzard.j. It would be using globals, but you don't
have to define them in the map that is run.

For the return issue you could set a boolean value in one of the
reserved variables to TRUE in the parent function, add a check in
the child function to not run if it is FALSE and set it to FALSE
whenever you want to skip subsequent calls.

http://jass.sourceforge.net/doc/api/...urce.shtml#536

I'm not sure if this qualifies for your demand for functions not to
use globals though :P.

08-02-2003, 09:05 PM

#30

dataangel

Quote:

Originally posted by Peppar
I don't have any "real" solution to your problem but you might
want to consider using the Enum-variables that are reserved for
the functions in Blizzard.j. It would be using globals, but you don't
have to define them in the map that is run.

For the return issue you could set a boolean value in one of the
reserved variables to TRUE in the parent function, add a check in
the child function to not run if it is FALSE and set it to FALSE
whenever you want to skip subsequent calls.

http://jass.sourceforge.net/doc/api/...urce.shtml#536

I'm not sure if this qualifies for your demand for functions not to
use globals though :P.

Well, I went through blizzard.j thinking about that, but I'm somewhat confused as to how the game engine actually treats the variables in there. There's only 1 global for stuff like get random unit from unit group, but you can run 293809013891 of that function at once and never have the values for the global mess with each other.

I think the game might set the bj globals to a new variable for each trigger they're used in, but I'm not sure that it'll do that automatically if I use them in my own functions or if they only do that automatically for stuff defined in blizzard.j.

Any idea?

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