Once a trigger is executed a condition determines whether the trigger should continue to carry out the actions assigned to it, or should not do anything / carry out any else actions assigned to it for example the 'UnitInArea' condition will carry out the triggers actions if the specified unit is within the specified area at the moment the trigger is executed. An event is what causes the trigger to execute, for example, the 'periodicEvent' event will execute the trigger according to the specified interval (for example once a second, or once every 15 seconds). Triggers consist of three main components (also known as elements): Events, Conditions, and Actions. As well as being useful for making more advanced single-player missions an understanding of triggers is a necessity for creating multi-player user missions, as such missions require triggers to function. Triggers are a feature of the Mission Editor which allow for vastly more complicated missions to be created, they can be used for scripted events, as well as for enabling more advanced mission features such as capture points, spawn points, visible way-points, and much more. 5.1.1.2 Matching the capture zone circle with the capture area.5.1.1.1 Drawing the capture zone circle.
