How to use isDone frag?

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ryunosuke tazawa
ryunosuke tazawa on 11 Oct 2021
Does isDone frag have the ability to end the episode?
I want to do trainning of simplependulum which can move in specific space.
The space which I hope is X_Position > 0 && Y_Position>0 ,and AngularVelocity < 0.
Is it possible to end the episode when the pendulum moves outside this range using by isDone frag?
function [NextObservation, Reward, IsDone, LoggedSignals] = myStepfunction(Action,LoggedSignals,SimplePendulum)
% prestate before moving
statePre = [0;0];
statePre(1) = SimplePendulum.Theta;
statePre(2) = SimplePendulum.AngularVelocity;
IsDone = false;
% updating state
SimplePendulum.pstep(Action);
% get state's information
state = [0;0];
state(1) = SimplePendulum.Theta; % Angular
state(2) = SimplePendulum.AngularVelocity; % Angular Velocity
X_state_Position = sin(state(1));
Y_state_Position = -cos(state(1));
% difference between ball distance and target point
Ball_Target = 10;
Ball_Distance = X_state_Position + (-state(2))* sqrt(2*abs(Y_state_Position)/9.8);
R = -abs(Ball_Distance -Ball_Target);
% here is problem ↓
% I want to get the information in spesific space, (X_Position > 0,
% && Y_Positin > 0, && State(2) < 0)
if (state(2)) > 0 && (Y_state_Position > 0) && ((abs(state(2))) > 10)
IsDone = true;
end
LoggedSignals.State = state;
NextObservation = LoggedSignals.State;
Reward = + R;

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