You should take a look at the crane code from Half-Life 2. It uses an
animation. Whether it only moves the viewport or the actual play, I don't
know but it's worth a shot.
/ScarT
On 28/08/2008, Michael Chang <[EMAIL PROTECTED]> wrote:
>
> Hi list
>
> I've asked this before but was ignored :( Can anyone please help me on
> this issue?
>
> I have animations in our mod that need to directly influence a
> player's absorigin, for example a dash or roll or cartwheel, etc.
> These animations are pretty sophisticated and don't look good if we do
> QC root position extraction and fake it with a physics velocity push.
> We actually want short -performances- for these player animations, ie:
> like how Dog runs around attacking things in HL2, with the player
> ending up in a different location than where he started.
>
> Lacking any idea of how that's -normally- implemented, I've written
> some pseudocode. Maybe some kind soul can point me to the right
> direction?
>
>
> ---pseudocode---
>
> StudioFrameAdvace(){
>
> //...after all of valve's stuff...
> AppendAnimationOriginOffset()
> }
>
>
> AppendAnimationOriginOffset(){
> Vector currentSkeletonRootPosition = GetRootBoneOrigin()
> Vector lastSkeletonRootPostion = lastRootPosition;
> Vector delta = currentSkeletonRootPosition - lastSkeletonRootPosition
> Vector currentPlayerPosition = GetAbsOrigin()
> Vector futurePlayerPosition = currentPlayerPosition + delta;
>
> // make sure our animation offset isn't moving our player into walls
> and things
> trace_t tr;
> traceLine( currentPlayerPosition, futurePlayerPosition + playerHull,
> ..., &tr, ...)
> if( tr.m < 1.0 )
> futurePlayerPosition *= m
>
> SetAbsOrgin( futurePlayerPosition )
> }
>
> ---end pseudocode---
>
>
> It seems that this method would need to predict this (I have
> studioadvanceframe and predicted sequences implemented on both
> client/server).
>
> Then, it seems I might have to extract the skeleton root's animation
> offset back out of the animation sequence itself, but from code not
> from QC files (X,Y,Z commands).
>
> Please help, thanks.
>
> ~M
>
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