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Timer
A simulation deamon is an element that allows you to control other instructional measures by the values of your simulation. For example: With a simulation daemon, you can automatically open an explanation when a particular variable in your simulation reaches a certain value.
To modify a Timer, you have to fill out a number of tab sheets. To access these, you select the Timer in the Application window, click right and choose Edit from the menu that appears. A menu with various tab sheets will pop-up.
In the Control On tab sheet you can make this element perform certain actions with regard to other elements in the application. With a timer, for instanc, you can make an Explanation pop up after the specified time is over. Also, you can, at activation, activate another timer or perhaps an image. There are numerous possibilities on this tab sheet. This chapter will help you smoothly control elements in your simulation.
First, set the Start-up state of the Timer:
Activated: the Timer will open when the simulation is opened in the learner view. Enabled: the Timer is visible to the learner in the learner view. Disabled: the learner can see the explanation, but not (yet) activate it. Invisible: the learner cannot see nor activate this Timer.
To set the control structure of an Timer, follow these steps:
Activated: the elements below will be activated, enabled, aborted, disabled, or hidden when the Timer is started Exited: the elements below will be activated, enabled, aborted, disabled, or hidden when the Timer reaches its target state. In other words: when, after activation, the time set in the Specification tab sheet is over.
No command to: the simulation stays as it is Compute: the simulation calculates the output value for the given input. Only when ‘Recompute output variables every time a value changes’ is not selected in Simulation Properties. Compute and Record: the model runs with the current input values and the results are displayed. Record Value: only for static models: the most recently computed value is recorded on screen. By default, this happens automatically, but you can change it under Simulation Properties. Reset: all variables in the simulation will be reset to their initial value.
Activate: The elements that you dragged into the box below will be started/opened. Enable: The elements below will be presented in the learner view but not started. The learner has to start them. Abort: The elements below will be closed. Disable: The elements below will be presented in the learner view but the learner cannot start them. Hide: The elements below will not be visible in the learner view.
Please note! The element itself is automatically added to the Exited-Enable page. Therefore, when all attempts have been used up, the Timer will be visible and available.
You can use the Control Overview tab sheet to check the controls you set in the Control On tab sheet. You can quickly see what will happen if the timer is activated and when the specified time is over.
A timer can be used to make something happen after a certain time. ‘Something’ may, in this case, for instance be the opening of an explanation element or the aborting of an assignment. You can use a timer in your control structure as follows:
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