Game Development Reference
In-Depth Information
6.
Update the state as fast as possible:
GenerateTicks();
}
The call to the
GenerateTicks()
function makes the actual update timing for the Android
version. It is implemented using the ideas from the
Implementing timing in physics
recipe
from this chapter.
How it works...
The
Setup()
function is a modiication of the original sample code from Box2D to set up a
physics scene. The modiication consists of deining a number of shortcuts to simplify the
scene assembly.
The functions
CreateBody()
and
CreateBodyPos()
create rigid bodies with speciied
positions, orientations, dimensions, and masses. The function
AddGround()
adds a static
immovable object to
g_World
, and the function
CreateJoint()
makes a new physical
attachment of one body to another.
In this sample scene there are also some joints connecting the bodies.
The application
App4
produces the same results on Android and Windows, as in the following
image, which is one of the simulation steps:
There's more...
As an exercise, we suggest that you experiment with the settings, and add more of your own
2D scenes to the
App4
sample.
See also
F
Implementing timing in physics
