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Table Of Contents
HUD Controls
The 2D HUD lets you specify the direction and speed of the Throw behavior by dragging
an arrow in a circular region. The direction of the arrow defines the direction of movement
in X and Y space, and the length of the arrow defines speed (velocity). A slider to the right
lets you adjust the scale of the HUD control, increasing or decreasing the effect the
direction/speed control has over the object.
Adjusts the scale of
the direction control,
affecting speed
Controls direction
and speed of throw
When you click the 3D button, additional 3D controls become available. The center arrow
now defines the direction the object is thrown in 3D space (X, Y, and Z axes). The Speed
slider (on the left side of the HUD) lets you increase or decrease the velocity of the thrown
object.
Adjusts velocity of throw
Adjusts direction in X, Y,
and Z space
In the 2D and 3D Throw HUDs, press the Shift key while dragging the arrow to constrain
it to 45 degree angles. In the 2D HUD, press the Command key to change the arrow’s
direction without affecting its length.
420 Chapter 9 Using Behaviors