How It Works
Sequences act on objects and allow for any of their properties to be keyframed over time. Commonly, they are used to move an object by keyframing the position (e.g. in sliding a 2d dialog into a 2d scene), but as any property can be keyframed, you could adjust the color of a light over time, or even change your own script variable.
Start by adding a new sequence and give it a useful name. Set the duration, then position the cursor in the timeline window where you want to make a keyframe (e.g. at the end).
You can then move your object in the world or change its properties and the keyframe will be built from your changes.
Click a property that you've created in the property list to configure it further. e.g. for position, you could set the 'Tween In' to be stepped so that it transitions to the new position smoothly.
Reference
This dialog allows you to animate an object over time. For user guide help on animation please see the online tutorials.
Sequence - the sequence you are editing. You can add, remove and rename sequences with the controls beside the drop down list.
Duration - the amount of time the sequence covers, from start to finish. You can change this with the '...' button.
Snap To - the granularity of time that you want to deal with. The space between each line in the timeline represents this period.
Auto play - this sequence will begin as soon as the object is created.
Loop - if set, the sequence will loop continuously.
The timeline window shows any keyframes that you have created as solid black rectangles. You can right click on these to perform relevant actions.
The red line shows the current time that you are editing. If you modify the object in the scene while this dialog is active, it will create keyframe data at the time where the red line is.
If you want to see or edit what a keyframe contains, click inside the black rectangle to select it.
The keyframe window has the following attributes...
Time - the selected time in the timeline window.
Property - a list of properties that have been keyframed at this time. You can select one or more of these to configure tweening or remove them.
Mode - determines how the properties are applied to the current ones. Currently only Set (i.e. overwrite) is supported.
Value Type - this selects the basic variable type to be applied.
Tween In - how the keyframe relates to the previous keyframe. For example, a stepped tween will move from the previous value more slowly at first, then more quickly, then more slowly again as it approaches the value.
Value - lets you view or change the actual property value at this time.
The tweening relation can be...
Jump - the data will only change on the exact keyframe (no tweening).
Linear - the data will move evenly between the two different values.
Stepped - the data will move more slowly at the start and end of the sequence.
Quad - the data will take into account 4 values at a time to produce a smooth motion between all 4.