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Timer behavior

Ashley's avatar
Construct Team Founder
Published 21 Aug, 2017
408 words
~2-3 mins

The Timer behavior simply triggers its On timer condition regularly or once after a delay. This is like using the system Every X seconds condition, or the system Wait action, except that times are kept for each instance individually. The rate of On timer triggering is affected by the time scale. The timer behavior is a more convenient alternative to adding dt to an instance variable every tick.


A single Timer behavior can keep track of multiple timers. To distinguish between then, a tag is used. A tag is simply a string, which can be anything. For example, starting a timer with tag "attack" will trigger On timer "attack", but not On timer "defend".

When a timer is stopped, or after a one-off timer triggers, it no longer exists and the timer expressions cannot be used to retrieve any information about it.

Timer conditions

On timer

Triggers either regularly, or once off, after a timer that was started with the same tag has reached its duration.

Timer actions

Start timer

Set a new timer, or if the timer exists, re-start it with new options. Duration is the time until On timer triggers. If Type is Once, then On timer will fire once and not again until Start timer is used again; if Regular, then On timer will keep firing every Duration seconds. The tag allows multiple timers to run at once. The corresponding On timer condition must use the same tag.

Stop timer

Stop a timer with a specific tag. On timer will no longer trigger after this action.

Timer expressions


The time in seconds since On timer last triggered, for a timer with a specific tag.


The duration in seconds for a timer with a specific tag.


The time in seconds since a timer with a specific tag was started with the Start timer action. This is only useful with regular timers, since it will always equal the CurrentTime expression for one-off timers (after which they fire and the timer no longer exists, so these expressions return 0).