Device Internal Clock and Cyclic Movement: Non-Game Apps - Learn GameSalad for iOS: Game Development for iPhone, iPad, and HTML5 - page 323

The rule is shown in Figure 10-16.
Figure 10-16. Interpolate to 100 rule
Create a new rule with the following conditions:
 ''Attribute''''Pendulum.Rotation''''=''''100''
 ''Attribute''''game.InMovement'' is ''true''
Then drag and drop an Interpolate behavior and change the settings.
 Interpolate Attribute: Pendulum.Rotation
 To: 80
 Duration: game.speed
 Function: Linear
Next, drag and drop a Play Sound behavior and select sound4 as the sound to
play. Leave all the other setting as the defaults.
The rule is shown in Figure 10-17.