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Author Topic: TI-83+/84+ (SE) BASIC Tips, Tricks, and Routines  (Read 15224 times)

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Offline DJ Omnimaga

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Re: TI-83+/84+ (SE) BASIC Tips, Tricks, and Routines
« Reply #30 on: November 09, 2010, 12:33:47 am »
Yeah. I just heard somewhere that for the 4 directional key detection they were much slower than the larger way.
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Offline meishe91

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Re: TI-83+/84+ (SE) BASIC Tips, Tricks, and Routines
« Reply #31 on: November 09, 2010, 12:42:34 am »
Ya, I think I remember that but I don't think it's that much slower, personally.
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Offline DJ Omnimaga

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Re: TI-83+/84+ (SE) BASIC Tips, Tricks, and Routines
« Reply #32 on: November 09, 2010, 01:01:55 am »
Well, it actually made a big difference in games like Illusiat 13, apparently (someone modified it once to check). Like under 2 FPS framerate during walking instead of over 3.
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Offline DJ Omnimaga

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Re: TI-83+/84+ (SE) BASIC Tips, Tricks, and Routines
« Reply #33 on: November 12, 2013, 01:36:01 am »
Is it me of is Goto sometimes faster than While/Repeat...? O.O

Make two programs, each having the following code at the very start:
Code: [Select]
1->A
While 1
rand
A+1->A
End
Code: [Select]
1->A
Lbl 1
rand
A+1->A
Goto 1

This Goto speed gain over While/Repeat only happens if the Lbl is at the very start of the program.

A For loop is even faster since I can then remove the A+1->A line, but if it's code with no variable incrementing, then For seems slightly slower than Goto (although faster than While/Repeat).

Could someone else run those tests to confirm? Although the speed gain would be negligible for large code, maybe it could be a slight speed boost in some cases (although the Title/menu code would need to be placed below the gameplay one, with a Goto at the very start of the program.
« Last Edit: November 12, 2013, 01:38:22 am by DJ Omnimaga »
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Offline blue_bear_94

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Re: TI-83+/84+ (SE) BASIC Tips, Tricks, and Routines
« Reply #34 on: November 12, 2013, 03:56:22 pm »
Another idea is to have a subprogram for the main game.
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Offline Hexatron

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Re: TI-83+/84+ (SE) BASIC Tips, Tricks, and Routines
« Reply #35 on: November 13, 2013, 08:05:42 pm »
Convert Hex to Dec
Code: [Select]
DelVar SInput Str1
For(I,1,length(Str1
inString("0123456789ABCDEF",sub(Str1,I,1))-1 -> C
S+C16^(length(Str1))-I -> S
End
S
« Last Edit: November 13, 2013, 08:11:07 pm by Hexatron »
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