Making a Shoot ‘Em Up Game: Carrot Invader - Learn GameSalad for iOS: Game Development for iPhone, iPad, and HTML5 - page 151

 Duration: 1
 Function: Linear
The rule is show in Figure 5-26.
Figure 5-26. Orange rule
Let's do the red warning now. Create a new rule in the actor named ''Red'' with
the following condition: ''attribute''''game.EnergyBar''''<''''50.'' Then drag and
drop an Interpolate behavior and change the settings to:
 Interpolate attribute: Energy bar.Color.Green
 To: 0
 Duration: 1
 Function: Linear
The rule is show in Figure 5-27.