The stomach stores energy taken from food sources within the virtual world. When a mouth is close enough to a food source and it is stimulated it will transfer food from the source
into the stomach as caloric energy. At each time step a certain amount of energy is used by the
biomechanical organism. This value is controlled by the Base Consumption Rate
property. However, it is possible to increase the rate by stimulating the stomach. This allows you to increase the rate of energy consumption based on how much it moves.
For example, if you were to have a neuron that monitored the activity of the pacemakers controlling locomotion it could stimulate the stomach. If the animal is moving this will cause
it to use extra energy. If it is sitting still then there will be no additional stimulation and the base consumption rate will be used.
See the sections on the Odor Sensor,
Mouth, and Food Sourcesfor more information on this subject.
NOTE: The interaction between the mouth and stomach have changed slightly in version 2. You can now have multiple stomachs/mouths. In the properties for the mouth you can choose which stomach it is associated with.
Default value: Red (255, 0, 0)
Acceptable range: R: 0 - 255, G: 0 - 255, B: 0 - 255;
This is the amount of energy in the stomach when the simulation starts. This value is increased when it
eats and is decreased as it uses energy. If it reaches 0 then the animal is considered to be dead.
Default value: 10 KiloCalaories
Acceptable range: Any value greater than 0.
Max Energy Level
This is the maximum amount of energy that can be added to the stomach.
Default value: 100 KiloCalories
Acceptable range: Any value greater than the current energy level.
The name of this body
Default value: If it is the first body in an organism, "root".
Otherwise the name is "body_xx" where xx is the number in which the body was
The transparency value determines how transparent a body part is. The higher the
transparency value the more transparent a body will be. 1 is fully
transparent and 0 is
Default value: 0 (opaque)
Acceptable range: 0 - 1
Determines if this body is visible within the
simulation. If you set this value to false then this body will still be included
in the simulation and any dynamics related to this object will still be
calculated, but no graphics will be generated for the user. This property does
not effect visibility in the editor. If you wish to make something invisible in
the editor then you will need to use the alpha value described above.
Default value: True
Acceptable values: True, False
The radius of the mouth. This value can be directly entered by the
user or they can use the mouse by clicking on the curved portion of the cylinder
and dragging the mouse to the desired radius.
Default value: 1 cm
Acceptable range: any number greater than zero
This project was supported by: