Visualisation of Spatial Distributions

A number of `movies' were recorded during the runs to show how the spatial distribution of the programs changed over the run. Each movie recorded a different piece of information about each program in the population (as well as the program's position on the grid), at various times throughout the run. This information included the program's length, age, size (number of cells, to indicate whether the program was serial or parallel), whether it had executed any foreign code during its lifetime (imported into its Received Message Store), whether it had moved during the last time slice, the amount of energy in its Energy Store, and, for each grid position, the amount of free environmental energy available at that time slice. By replaying these movies, we can see how the spatial distribution of these measures changed throughout the run.