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Newcomers AppGameKit Corner / Timings in a game

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Mike Archer
9
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Joined: 19th Feb 2015
Location: Wales
Posted: 2nd Dec 2015 00:57
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I may be missing something, but is there any way to create a reliable way to make a game run at a set speed for a prolonged period of time? Basing it on FPS means it will run slower on some machines, but using the timer means it will become inaccurate after a couple of hours due to the timer being floating point. Is there any way to reset the timer back to zero to keep accuracy, or should I rely on FPS?
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BatVink
Moderator
21
Years of Service
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Joined: 4th Apr 2003
Location: Gods own County, UK
Posted: 2nd Dec 2015 09:09
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You may kick yourself...

ResetTimer()
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Quidquid latine dictum sit, altum sonatur
TutCity is being rebuilt
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Preben
AGK Studio Developer
20
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Joined: 30th Jun 2004
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Posted: 2nd Dec 2015 12:10
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You can do something like this:

the first lines in your sync loop:
fps#=1/GetFrameTime()
tween#=60/fps#

Then anytime you like to move something you just do like this:

cammove#=-GetVirtualJoystickY( 1 ) * tween#

or moving a object:

SetObjectPosition(door1[a],GetObjectX(door[a]),GetObjectY(door[a])-(1.0*tween#),GetObjectZ(door1[a]))

here 1.0 is the speed you like it to move at ( when you make the * tween# it will add to this is the fps is low , so you move at the same speed no matter the FPS ).

SetObjectRotation(gunobj, GetObjectAngleX(gunobj), GetObjectAngleY(gunobj)+(0.1*tween#), GetObjectAngleZ(gunobj) )

Here i like to move 0.1 each cycle so use 0.1*tween#


best regards Preben Eriksen,
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Mike Archer
9
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Joined: 19th Feb 2015
Location: Wales
Posted: 2nd Dec 2015 14:36
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Thank you, I couldn't understand why there was no option to reset the timer, and now I can't understand how I didn't see it... lol
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DavidAGK
AGK Developer
10
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Joined: 1st Jan 2014
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Posted: 2nd Dec 2015 17:31
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GetFrameTime() is useful... allows you to end up dealing in "pixels per second" type movement which is ultimately what you need.
Using Tier 1 AppGameKit V2
Started coding with AMOS (Thanks Francois Lionet)
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