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| Rather than just responding to to BEGIN messages, counting actors respond to changes in their value; a number between 0 and 9999. They constantly compare their value with a set of target values, which can be either fixed values or other counting actors. | |
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| When the value matches (i.e it is ‘greater than’, ‘equal to’ or ‘less than’ the appropriate target) counting actors send messages on, much like other actors. | |
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| Another way that a counting actor can be used is simply as a value (a variable) in messages sent by other actors. The value could be- • sent to other counting actors |
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