Agents themselves have a very basic set of knowledge so that external Lua scripts such as the sandbox script can direct agents with some amount of persistence. For example, when we create an agent that moves to a target position, we might want the sandbox to set this position instead of the agent having to determine its target.
An agent's target is a vector position. Typically, agents will use the target as a position they want to reach or the known position of another agent.
local targetVector = agent:GetTarget(); agent:SetTarget(targetVector);
A target radius is a number value that agents use to determine whether they are close enough to their target without having to be exactly at the target position. This fudge factor helps agents avoid circling a target position due to small numerical differences in their position and target position.
local targetRadius = agent:GetTargetRadius(); agent:SetTargetRadius(targetRadius );