# Simple bouncing molecules in a 2-D system

graphics opengl

dim 2

boundaries x 0 100 r
boundaries y 0 100 r

species red
species green

difc red 3
difc green 1

color red red
color green green

time_start 0
time_stop 1000
time_step 0.01

mol 20 red u u
mol 8 green 80 40

end_file



