peloton_energy.jl

function energy_usage(agent::Agent, model::Model)
    usage = 0.02
    
    for other_agent in model.peloton
        heading = other_agent.position - agent.position
        distance = sum((heading).^2)^0.5
        
        if agent != other_agent          
            if distance < 0.2 && heading[1] > 0
                angle_factor = abs(acot(heading[2] / heading[1])) / π * 2
                usage -= 0.1 * (0.2 - distance) * angle_factor
            end
        end
    end

    return min(max(-0.01, usage), 0.02)
end