Your project may contain numerous conditions you can use to control the way your script works or interacts with the user. Although a condition can take many forms, at its core it represents a circumstance that is either true or false. Conditional statements look for common conditions like these:
One object comes into contact with another object
Something is on or off
A movie clip's position, size, or other property is greater than, less than, or equal to another value
The user has a specific interaction with the mouse or keyboard
Text or numeric values are greater than, less than, or equal to another value
Any combination of the conditions above