Cinematic System

**Anitarf** · 01-21-2006, 05:59 PM

A Jass system designed for cinematic composing and playback.

It grants the mapmaker more control and precision in manipulating units, special effects and cameras than is possible with regular GUI triggers.

The system was first used in the Blizzard's cinematic contest winner, The Spirit of Vengeance made by me and iNfraNe.

Version History

Elthanor · 01-21-2006, 06:19 PM

This might come in handy, but i might need to learn some JAss first.

Any BTW, I LOVED your movie, its soo awesome. Great job!

**Vexorian** · 01-21-2006, 06:29 PM

GC is a horribly generic name and needs to be more specific to the system but the problem is that you call it everytime

BAD:


function CameraMainLoop takes nothing returns nothing
    local real array a
    local real array v
    local real array s
    local real array time
    local integer i = 0

    loop
        exitwhen i == 9
        set i = i + 1
        set time[i] = GetStoredReal( GC(), "camera", "time" + I2S(i) ) + CameraPeriod()

        if time[i] > GetStoredReal( GC(), "camera", "endtime" + I2S(i) ) then
            if GetStoredReal( GC(), "camera", "acc2" + I2S(i) ) != 0 then
                call StoreReal( GC(), "camera", "acc" + I2S(i), GetStoredReal( GC(), "camera", "acc2" + I2S(i) ) )
                call StoreReal( GC(), "camera", "startvel" + I2S(i), GetStoredReal( GC(), "camera", "vel" + I2S(i) ) )
                call StoreReal( GC(), "camera", "startdis" + I2S(i), GetStoredReal( GC(), "camera", "dis" + I2S(i) ) )
                call StoreReal( GC(), "camera", "time" + I2S(i), 0.00 )
                call StoreReal( GC(), "camera", "acc2" + I2S(i), 0.00 )
                set time[i] = 0.00
            else
            endif
        endif

        set a[i] = GetStoredReal( GC(), "camera", "acc" + I2S(i) )
        set v[i] = GetStoredReal( GC(), "camera", "startvel" + I2S(i) )
        set s[i] = GetStoredReal( GC(), "camera", "startdis" + I2S(i) )

        call StoreReal( GC(), "camera", "time" + I2S(i), (time[i]) )

        set s[i] = s[i] + ( v[i] * time[i] ) + ( a[i] * time[i] * time[i] / 2 )
        set v[i] = v[i] + ( a[i] * time[i] )
        if i > 3 and i < 7 then
            if s[i] > 360 then
                set s[i] = s[i] - 360
            elseif s[i] < 0 then
                set s[i] = s[i] + 360
            endif
        endif

        call StoreReal( GC(), "camera", "vel" + I2S(i), v[i] )
        call StoreReal( GC(), "camera", "dis" + I2S(i), s[i] )


    endloop

    call PanCameraToTimed( s[1], s[2], 0.00 )
    call SetCameraField( CAMERA_FIELD_ZOFFSET, s[3], 0.00 )
    call SetCameraField( CAMERA_FIELD_ROTATION, s[4], 0.00 )
    call SetCameraField( CAMERA_FIELD_ANGLE_OF_ATTACK, s[5], 0.00 )
    call SetCameraField( CAMERA_FIELD_ROLL, s[6], 0.00 )
    call SetCameraField( CAMERA_FIELD_FIELD_OF_VIEW, s[7], 0.00 )
    call SetCameraField( CAMERA_FIELD_FARZ, s[8], 0.00 )
    call SetCameraField( CAMERA_FIELD_TARGET_DISTANCE, s[9], 0.00 ) 
endfunction

Good:

function CameraMainLoop takes nothing returns nothing
 local real array a
 local real array v
 local real array s
 local real array time
 local integer i = 0
 local gamecache g=g

    loop
        exitwhen i == 9
        set i = i + 1
        set time[i] = GetStoredReal( g, "camera", "time" + I2S(i) ) + CameraPeriod()

        if time[i] > GetStoredReal( g, "camera", "endtime" + I2S(i) ) then
            if GetStoredReal( g, "camera", "acc2" + I2S(i) ) != 0 then
                call StoreReal( g, "camera", "acc" + I2S(i), GetStoredReal( g, "camera", "acc2" + I2S(i) ) )
                call StoreReal( g, "camera", "startvel" + I2S(i), GetStoredReal( g, "camera", "vel" + I2S(i) ) )
                call StoreReal( g, "camera", "startdis" + I2S(i), GetStoredReal( g, "camera", "dis" + I2S(i) ) )
                call StoreReal( g, "camera", "time" + I2S(i), 0.00 )
                call StoreReal( g, "camera", "acc2" + I2S(i), 0.00 )
                set time[i] = 0.00
            else
            endif
        endif

        set a[i] = GetStoredReal( g, "camera", "acc" + I2S(i) )
        set v[i] = GetStoredReal( g, "camera", "startvel" + I2S(i) )
        set s[i] = GetStoredReal( g, "camera", "startdis" + I2S(i) )

        call StoreReal( g, "camera", "time" + I2S(i), (time[i]) )

        set s[i] = s[i] + ( v[i] * time[i] ) + ( a[i] * time[i] * time[i] / 2 )
        set v[i] = v[i] + ( a[i] * time[i] )
        if i > 3 and i < 7 then
            if s[i] > 360 then
                set s[i] = s[i] - 360
            elseif s[i] < 0 then
                set s[i] = s[i] + 360
            endif
        endif

        call StoreReal( g, "camera", "vel" + I2S(i), v[i] )
        call StoreReal( g, "camera", "dis" + I2S(i), s[i] )


    endloop

    call PanCameraToTimed( s[1], s[2], 0.00 )
    call SetCameraField( CAMERA_FIELD_ZOFFSET, s[3], 0.00 )
    call SetCameraField( CAMERA_FIELD_ROTATION, s[4], 0.00 )
    call SetCameraField( CAMERA_FIELD_ANGLE_OF_ATTACK, s[5], 0.00 )
    call SetCameraField( CAMERA_FIELD_ROLL, s[6], 0.00 )
    call SetCameraField( CAMERA_FIELD_FIELD_OF_VIEW, s[7], 0.00 )
    call SetCameraField( CAMERA_FIELD_FARZ, s[8], 0.00 )
    call SetCameraField( CAMERA_FIELD_TARGET_DISTANCE, s[9], 0.00 ) 
 set g=null
endfunction

Why? Because the GC function has a comparission and a return and many other things that charge the performance - As bad as using BJ functions. In functions like this one it is getting called way too much times and using a local will make the charge lighter,

Any logical explanation for doing this:

BAD:


    call StoreReal( GC(), "camera", "startdis" + I2S(1), CameraSetupGetDestPositionX( whichSetup ) )
    call StoreReal( GC(), "camera", "startdis" + I2S(2), CameraSetupGetDestPositionY( whichSetup ) )
    call StoreReal( GC(), "camera", "startdis" + I2S(3), CameraSetupGetField( whichSetup, CAMERA_FIELD_ZOFFSET ) )
    call StoreReal( GC(), "camera", "startdis" + I2S(4), CameraSetupGetField( whichSetup, CAMERA_FIELD_ROTATION ) )
    call StoreReal( GC(), "camera", "startdis" + I2S(5), CameraSetupGetField( whichSetup, CAMERA_FIELD_ANGLE_OF_ATTACK ) )
    call StoreReal( GC(), "camera", "startdis" + I2S(6), CameraSetupGetField( whichSetup, CAMERA_FIELD_ROLL ) )
    call StoreReal( GC(), "camera", "startdis" + I2S(7), CameraSetupGetField( whichSetup, CAMERA_FIELD_FIELD_OF_VIEW ) )
    call StoreReal( GC(), "camera", "startdis" + I2S(8), CameraSetupGetField( whichSetup, CAMERA_FIELD_FARZ ) )
    call StoreReal( GC(), "camera", "startdis" + I2S(9), CameraSetupGetField( whichSetup, CAMERA_FIELD_TARGET_DISTANCE ) )

instead of this?

Good:

    call StoreReal( GC(), "camera", "startdis1", CameraSetupGetDestPositionX( whichSetup ) )
    call StoreReal( GC(), "camera", "startdis2", CameraSetupGetDestPositionY( whichSetup ) )
    call StoreReal( GC(), "camera", "startdis3", CameraSetupGetField( whichSetup, CAMERA_FIELD_ZOFFSET ) )
    call StoreReal( GC(), "camera", "startdis4", CameraSetupGetField( whichSetup, CAMERA_FIELD_ROTATION ) )
    call StoreReal( GC(), "camera", "startdis5", CameraSetupGetField( whichSetup, CAMERA_FIELD_ANGLE_OF_ATTACK ) )
    call StoreReal( GC(), "camera", "startdis6", CameraSetupGetField( whichSetup, CAMERA_FIELD_ROLL ) )
    call StoreReal( GC(), "camera", "startdis7", CameraSetupGetField( whichSetup, CAMERA_FIELD_FIELD_OF_VIEW ) )
    call StoreReal( GC(), "camera", "startdis8", CameraSetupGetField( whichSetup, CAMERA_FIELD_FARZ ) )
    call StoreReal( GC(), "camera", "startdis9", CameraSetupGetField( whichSetup, CAMERA_FIELD_TARGET_DISTANCE ) )

Edit: you also have an ==true in the B2I function which is btw useless

iNfraNe · 01-21-2006, 06:30 PM

Well the good thing about this is, you dont REALLY have to know jass, just some common sense, since all the functions are prebuild and you just need to write some lines (almost all functions are showed in the example cinematic it holds, to make it even easier)

**Anitarf** · 01-21-2006, 07:00 PM

Quote:

Originally Posted by Vexorian

GC is a horribly generic name and needs to be more specific to the system but the problem is that you call it everytime

Well, the advantage is I can type it quickly, and when using game cache natives instead of handle vars, that's a big factor. :)

Quote:

Why? Because the GC function has a comparission and a return and many other things that charge the performance - As bad as using BJ functions.

It's still one function call less than using handle variables. But I agree, your suggestion means a considerable optimization, I'll implement it in the next version.

Quote:

Any logical explanation for doing this:

*Insert embarrasingly noob-like code here*

No logical explanation, just the result of copy-pasting, and the irrational fear that 1 might not convert exactly to "1". Will fix.

Quote:

Edit: you also have an ==true in the B2I function which is btw useless

Indeed it is. But it was worse before, I was using the return bug before iNfraNe told me this is faster. :)

**Vexorian** · 01-21-2006, 07:11 PM

Why have a B2I at all ?

And

Quote:

Well, the advantage is I can type it quickly, and when using game cache natives instead of handle vars, that's a big factor. :)

if you use g it would be even faster

**Anitarf** · 01-21-2006, 07:23 PM

Yeah, well... I had a deadline when I was making this! (excuses, excuses :) )

Anyway, I fixed that now, at least in the most critical functions. It was kinda lame not to use the handle vars because of performance reasons, but then do things like this.

**Tim.** · 01-21-2006, 10:49 PM

You know I love this. Awesome beyond a doubt.

Hyarion · 01-22-2006, 08:12 AM

Is it alright if I kiss the very ground you walk on?

Zeal_ · 01-22-2006, 12:34 PM

Rename it,

Cinematic Jass for Dummies.

**Vexorian** · 01-22-2006, 08:26 PM

why would it have such a lame name?

DanL. · 01-23-2006, 11:51 PM

Good cinematic, and also good concept .

Freakazoid · 01-30-2006, 12:22 PM

I hate Jass, but guess i have to learn it :/

Capn_Sniffies · 02-02-2006, 05:44 PM

Does this work on multiplayer maps?

**Anitarf** · 02-02-2006, 06:07 PM

Hmm... cinematic maps are usually single player, no?

But anyway, if you mean to use this in a playable map for an introduction cinematic or anything like that, yes, it should work in multiplayer too. I looked through the code again quickly and I found nothing that would limit it to only one player.

01-21-2006, 06:19 PM	#2
Elthanor User Join Date: Jan 2004 Posts: 132	This might come in handy, but i might need to learn some JAss first. Any BTW, I LOVED your movie, its soo awesome. Great job! __________________ Signature was too big, recomended size: 25% of current one

01-21-2006, 10:49 PM	#8
Tim. Missing You All at Wc3c Site Owner Join Date: Jul 2003 Posts: 4,474 Submissions (18)	You know I love this. Awesome beyond a doubt. __________________ "oO and if anyone called Tim. trys to make an account then kick there butts." -Mavus, moderator of the GTW forums Avast! Seen Pirates? Get it here!

01-22-2006, 08:12 AM	#9
Hyarion User Join Date: Jan 2005 Posts: 497	Is it alright if I kiss the very ground you walk on? __________________

01-22-2006, 12:34 PM	#10
Zeal_ User Join Date: Apr 2004 Posts: 376	Rename it, Cinematic Jass for Dummies. __________________ Older, smarter, and back

01-30-2006, 12:22 PM	#13
Freakazoid I love you all. Join Date: May 2003 Posts: 1,915 Submissions (14)	I hate Jass, but guess i have to learn it :/ __________________

01-23-2006, 11:51 PM	#12
DanL. Girl+Guns= DanL. Join Date: Dec 2005 Posts: 47 Submissions (2)	Good cinematic, and also good concept .

02-02-2006, 05:44 PM	#14
Capn_Sniffies User Join Date: Dec 2002 Posts: 305	Does this work on multiplayer maps?

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