GameDev.com is probably a better place to ask this question, as it's not
really an 'android' question, per se.
On 12/2/2011 11:32 PM, John Goche wrote:
On Fri, Dec 2, 2011 at 3:06 PM, Miguel Morales
<[email protected] <mailto:[email protected]>> wrote:
Why are you using timers? That seems needlessly complicated.
Use a game loop that keeps a constant frame rate.
Maintain state in your sprite objects, use the game loop to update
this state.
Then on a separate draw loop draw the sprite according to its state.
Then you dont have to worry about weird sync issues.
Well, I am using timers with the state design pattern so that when
each timer expires
I transition to a new state or update a variable. It keeps my code
sparated into neat
modules.
I have a separate draw function which runs after calling
update(deltaTime) on the model (sprites).
Without timers the code could become a mess with lots of time-keeping
variables decremented
on each update to the game loop and lots of tests to see which state
the sprites are in accordingly...
On Fri, Dec 2, 2011 at 5:45 AM, John Goche
<[email protected] <mailto:[email protected]>>
wrote:
Hello,
I have an android game which uses timers to update the screen
sprites.
When the user wishes to pause the screen I have to know which
timers
are pending and how long is missing before their expiration
time. So this
means I have to maintain separate data structures for each
Handler to
keep track of:
A. when the timer is set (timerSetTime) with System.nanoTime() and
B. how long before it expires (timerExpirationLength) so that
when the user pauses the game screen I cancel all timers
and then when the user unpauses for each paused timer I compute
unpauseTime = System.nanoTime()
and then reset each timer to timerExpirationLength -
unpauseTime + timerSetTime
and then when each timer expires unload the corresponding
(timerSetTime and timerExpirationLength)
data structure entry in the Handler subclass.
OK, I have described my solution to the problem. The android
Handler system does not seem
to provide a custom solution to this problem so I had to
implement my own code. If anyone has
a better solution to the problem of dealing with game state
timers when the game is paused (so
that they are saved as part of the game state) I'd like to
hear your alternative solutions.
Thanks,
John Goche --
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