Royal Road

Overview

The EvalRoyalRoad module evaluates organisms based on their ability to sequentially place “bricks” of ones. A “brick” is completed once a set of n ones are grouped together. “Bricks” are placed from the beginning of the organism to the end. A brick can only be placed immediately succeeding another brick.

Traits

For a description of each type of trait, see traits documentation that doesn’t exist yet.

Type of Trait	Trait Name	Trait Description
Private	N/A
Owned	fitness_trait	Stores the score of each organism.
Generated	N/A
Shared	N/A
Required	bits_trait	Stores the bit sequence to be evaluated.
Optional	N/A

Parameters

• brick_size the number of ones necessary to make a full brick. The default is a “brick” of size 8.

Parameters may be modified in the file RoyalRoad.mabe.

I/O

Input

None.

Output

None.

Compiling and Running

To run MABE with the RoyalRoad evaluator, navigate to the build directory. First run the command make. Next run the command ./MABE -f settings/EvalRoyalRoad.mabe.

Examples

Here are a couple of example BitOrgs and how they would be evaluated by the RoyalRoad evaluator.

Organism	brick_size	Fitness Score
111000111	3	1
111111000	3	2
00111000	3	0
11001110	3	0