My scene scripting library

[Rick]

Just a small little demo of the early works of my lua scripting scene library. Basically it allows you to make complex "scenes" in your game through scripting and a few map elements.

 

Here is the code to the scene. The scene library functions have the Do in front of them and the GetEntityByName() and RunScript(). In the beginning you can the pivots setup and in the code you can see I assign those to variables for easier access.

 

The library currently has:

DoWait() -- waits x ms before continuing on with the script. Note I said just the script because the entire game continues to play. Only the function you defined waits. This is the best part of this. Your function isn't blocking to the game.

DoSound() -- waits to continue with your script until the sound is finished. All the sound you hear are wav files that I created

DoMoveTo() -- waits to continue until one entity reaches a destination entity

function MyScript(cr)
local pivot1 = GetEntityByName("pivot1")
local pivot2 = GetEntityByName("pivot2")
local pivot3 = GetEntityByName("pivot3")
local pivot4 = GetEntityByName("pivot4")
local general = GetEntityByName("pivot_7")
local generalModel = GetEntityByName("1_4")
local soldier = GetEntityByName("pivot_5")
local miscSoldier = GetEntityByName("1_42")
local miscSoldierModel = GetEntityByName("1_6")
local camera = fw.main.camera

PositionEntity(camera, EntityPosition(pivot1))
PointEntity(camera, miscSoldier, 3, 1, 0)
DoWait(cr, 2000)
DoSound(cr, "abstract::hello1.wav")

PositionEntity(camera, EntityPosition(pivot2))
PointEntity(camera, soldier, 3, 1, 0)
DoSound(cr, "abstract::ripoff.wav")
DoWait(cr, 500)

PositionEntity(camera, EntityPosition(pivot3))
PointEntity(camera, general, 3, 1, 0)
DoSound(cr, "abstract::whosaidthat.wav")
DoWait(cr, 500)

PositionEntity(camera, EntityPosition(pivot2))
PointEntity(camera, soldier, 3, 1, 0)
DoSound(cr, "abstract::idid.wav")
DoWait(cr, 1000)

PositionEntity(camera, EntityPosition(pivot1))
PointEntity(camera, miscSoldier, 3, 1, 0)

DoMoveTo(cr, generalModel, pivot4, .005, .5, miscSoldierModel)
DoSound(cr, "abstract::private_joker.wav")
DoWait(cr, 250)

PositionEntity(camera, EntityPosition(pivot2))
PointEntity(camera, soldier, 3, 1, 0)
DoSound(cr, "abstract::from.wav")
DoWait(cr, 500)


-- debugging, makese it easier to go back to starting point
PositionEntity(camera, EntityPosition(pivot1))
PointEntity(camera, miscSoldier, 3, 1, 0)

SetGlobalNumber("runGame", 2)
end


-- this kicks the script off
RunScript(MyScript)

 

 

 

There is a bug in the DoMoveTo() which you can see at the end. The "general" guy seems to be slowly moving upward as he moves.

 

 

This scene took me about 20 mins to setup. This is pretty powerful because you can create very complex "scenes"/interactions in your game with very little effort and logical flow. I will release the lua code when I'm complete but if you are interested in how I did this you can look into lua's coroutines.

[TylerH]

Very nice. Once you release the source, if you didn't mind, I would love to add Catmull-Rom and Quaternion support to it.

 

We could get a nice Cinematic toolkit together with this.

 

Great project Rick!

[Josh]

This is the first of many LULZ!

[Rick]

I added a little interactivity to the script. It asks you to press a number to tell private joker on how many laps to run. In this video I pressed 3, but it handles 0-9.

 

[Rick]

Now with animation!

 

[TylerH]

[Josh]

You should write a script and have various people on the forum voice it.

[TylerH]

That would be fun.

[Rick]

Good idea. I'll start up a thread.