Create a Walker
create_walker.RdCreates a walker object for the random walk simulation.
Value
A list representing the walker with components:
- id
Walker identifier
- pos
Current position
- steps
Number of steps taken
- active
Logical indicating if walker is still active
- termination_reason
Character string if terminated, NULL otherwise
- path
List of all positions visited (NULL if store_path=FALSE)
- store_path
Logical indicating if path is being stored