(XI Interval Timer) |
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} | } | ||
</source> | |||
<br /> <br /> | |||
=== XI Interval Timer=== | |||
<source lang="java"> | |||
/* INTERVAL TIMER (PROCESSING) | |||
* | |||
* Often when animating things, we need | |||
* to trigger events in a certain interval. | |||
* For this the millis() funtion is very helpful. | |||
* It returns the time in milliseconds | |||
* since the program was started. | |||
* | |||
* Frederic Gmeiner, 2011 | |||
*/ | |||
// create a variable to store the last time | |||
// our event was triggered. (the long datatype | |||
// can store much larger numbers as an integer) | |||
long lastMillis= 0; | |||
// define the length of the interval | |||
int interval = 1000; | |||
void draw(){ | |||
// check whether the interval time has passed: | |||
if(millis() - lastMillis > interval){ | |||
// once the interval time has passed, | |||
// update the lastMillis so that we need to | |||
// wait again for 1000 milliseconds. | |||
lastMillis = millis(); | |||
// trigger the event: | |||
println(millis()/1000); | |||
} | |||
} | |||
</source> | </source> | ||
<br /> <br /> | <br /> <br /> | ||