Full title: Agent-based Model Authors: L. Edelstein-Keshet Contributors: Y. Xiao Date: 23.06.2022 Software: Morpheus (open-source). Download from https://morpheus.gitlab.io Model ID: https://identifiers.org/morpheus/M2016 Reference: L. Edelstein-Keshet: Mathematical Models in Cell Biology Comment: Random walkers in 2D. A population of cells are started at the center of the domain. For each one, the following rules of motion are used: At fixed time increments, the walker changes its direction of motion. Its velocity vector is then recomputed as a vector with random x and y components. This simulation has some similarities to the RunAndTumble.xml example (Morpheus Model ID: M0025, https://identifiers.org/morpheus/M0025). A bias in the move direction can be introduced by setting BiasOnOff to 0 (off) or 1 (on). The mean squared displacement is computed and plotted. Thanks: Uses some aspects of the example RunAndTumble.xml and MSD calculation provided by Lutz Brusch.

1 time >= last_turn_time+ run_time time rand_uni(-1,1), rand_uni(-1,1) , 1

1 2.5