Okay, lets say you have this:

:Repeat X=17 and Y=9 and not(XY
:Stuff 1
:getKey->K
:Stuff 2
:If X=/17 and Y=/9 and XY
:Then
:Stuff 3
:End
:End

You are running thru that conditional twice.  What if you did:

:0->K
:Repeat X=17 and Y=9 and not(XY
:If K
:Then
:Stuff 3
:End
:Stuff 1
:getKey->K
:Stuff 2
:End

I think that explained it well enough.

As for running everything else, it appears L4 needs to be there.  I don't know what to put in L4, so I can't patch it.  Can you upload a typical L4?

What do we run first?  All the programs give silly little errors, except for thetaMO.  I really like how it looks, though.

Here's the code for those like Eeems that can't open zips. (Ipod)
:While 1
:¦ "θM"+sub("0123456789",{L4}(1),1
:¦ real(10,0,0
:¦ {L4}(2→X
:¦ prgmXTEMP000
:¦ real(10,1,0
:¦ Output(1,1,Str1
:¦ Output({L4}(9),{L4}(8),"π
:¦ {L4}(9→Y:{L4}(8→X
:¦ Repeat X=17 or Y=9 or not(XY
:¦ ¦ {0 //This is unnessecary, as a Repeat loop is a post-test loop.
:¦ ¦ Repeat sum(Ans //change this to sum(Ans={24,25,26,34,21,15
:¦ ¦ ¦ getKey // add →θ
:¦ ¦ ¦ Ans={24,25,26,34,21,15 //get rid of this
:¦ ¦ End
:¦ ¦ sum(Ans{24,25,26,34,21,15→θ //Get rid of this
:¦ ¦ If θ=15
:¦ ¦ prgmTM
:¦ ¦ If θ=21
:¦ ¦ Then
:¦ ¦ ¦ "θM
:¦ ¦ ¦ real(10,0,0
:¦ ¦ ¦ prgmXTEMP000
:¦ ¦ ¦ real(10,1,0
:¦ ¦ ¦ If 2={L4}(4
:¦ ¦ ¦ real(5,0,35
:¦ ¦ ¦ If {L6}(1
:¦ ¦ ¦ real(5,0,2
:¦ ¦ ¦ Output(1,1,Str1
:¦ ¦ End
:¦ ¦ Y→T
:¦ ¦ X→U
:¦ ¦ Y+(θ=34)-(θ=25→Y
:¦ ¦ X+(θ=26)-(θ=24→X
:¦ ¦ If X≠17 and Y≠9 and XY //You could move this to the begining of the loop (before the getKey to save speed)
:¦ ¦ Then
:¦ ¦ ¦ sub(Str1,16(Y-1)+X,1
:¦ ¦ ¦ If Ans=" " or Ans="/" or Ans="-" or Ans="=" or Ans="ñ
:¦ ¦ ¦ Then
:¦ ¦ ¦ ¦ If Ans="ñ
:¦ ¦ ¦ ¦ Then
:¦ ¦ ¦ ¦ ¦ "θM"+sub("0123456789",{L4}(1),1)+"A
:¦ ¦ ¦ ¦ ¦ real(10,0,0
:¦ ¦ ¦ ¦ ¦ prgmXTEMP000
:¦ ¦ ¦ ¦ ¦ real(10,1,0
:¦ ¦ ¦ ¦ ¦ If {L6}(1
:¦ ¦ ¦ ¦ ¦ real(5,0,2
:¦ ¦ ¦ ¦ End
:¦ ¦ ¦ ¦ Output(T,U,sub(Str1,16(T-1)+U,1
:¦ ¦ ¦ ¦ DelVar TDelVar UOutput(Y,X,"π
:¦ ¦ ¦ ¦ If 1={L6}(1
:¦ ¦ ¦ ¦ Then
:¦ ¦ ¦ ¦ ¦ 0→{L6}(1
:¦ ¦ ¦ ¦ ¦ real(5,0,23+12(2={L4}(4
:¦ ¦ ¦ ¦ End
:¦ ¦ ¦ ¦ If {L6}(1
:¦ ¦ ¦ ¦ {L6}(1)-1→{L6}(1
:¦ ¦ ¦ ¦ If {L6}(2
:¦ ¦ ¦ ¦ Then
:¦ ¦ ¦ ¦ ¦ int(.95H)+(H=0→H
:¦ ¦ ¦ ¦ ¦ {L6}(2)-1→{L6}(2
:¦ ¦ ¦ ¦ End
:¦ ¦ ¦ ¦ If {L6}(3
:¦ ¦ ¦ ¦ {L6}(3)-1→{L6}(3
:¦ ¦ ¦ ¦ If 1=randInt({-}9+6{L6}(3),1
:¦ ¦ ¦ ¦ prgmθF
:¦ ¦ ¦ ¦ Else
:¦ ¦ ¦ ¦ T→Y
:¦ ¦ ¦ ¦ U→X
:¦ ¦ ¦ ¦ Output(Y,X,"π
:¦ ¦ ¦ End
:¦ ¦ ¦ X→{L4}(8 //These two lines are a big time hog.
:¦ ¦ ¦ Y→{L4}(9 //Is it possible to move these outside of the loop?
:¦ ¦ End
:¦ End
:¦ ClrHome
:¦ (Y=9)-(Y=0)+{L4}(7→{L4}(7
:¦ (X=17)-(X=0)+{L4}(6→{L4}(6
:¦ [A]({L4}(7),{L4}(6→{L4}(2
:¦ If not(X:16→X
:¦ If not(Y:8→Y
:¦ If X=17:1→X
:¦ If Y=9:1→Y
:¦ X→{L4}(8:Y→{L4}(9
:End

I think you should change it because then you have (Ans>2) vs (Ans and Ans<8).

Never use Y variable. Some TI-OS glitches causes it to be reset to 0 from time to time. You'll run into problems later.

I am pretty sure these only deal with some draw-type commands and the graph screen.

@ztrumpet: Not according to TI-BD, it isn’t: http://tibasicdev.wikidot.com/timings#toc3

Ah, yes that would be correct when you have an empty If 1: statement.  However if you have If 1:"Blahblahblah (or mabey If A*SD*(2=H):"Hi I don't remember which is longer to matter; line of If or the next) as an example it would take the basic parser longer than an If:Then.  I'm not sure how it works exactly, but longer ifs are slower.  I wish I could explane it better. (I feel like that didn't make much sense )

Like I said, Without a program in a string it will detete the program. Like 1->X:Asm(prgmXCOPY

I can't wait to see your code.

Xcopy's syntax:
PrgmA to Xtemp001
1->X:"A":Asm(prgmXCOPY
Deleete prgmXcopy001
1->X:Asm(prgmXCOPY
It's pretty simple.

Please Note: You said it was slower, but due to the nature of the basic parser, If:Then:line(s):End is faster than If:line by quite a bit (2x faster I think).  But you make a good point. If you think it's better to use xLib then go for it!  There are pros and cons both ways.

Do you want us to look at the engine? If you post it here, I'm pretty sure there is speed to be found.

*ztrumpet is on Internet Explorer.

No way! That's not full speed! That's amazing.  I can't wait to see more progress.

Amazing progress.

Calc84, you have made so many great games! Good luck to all the unfinished ones too.

Nice! I can't wait to see it.