// (C) Uri Wilensky. https://github.com/NetLogo/NetLogo
package org.nlogo.prim;
import org.nlogo.agent.AgentSet;
import org.nlogo.agent.Link;
import org.nlogo.agent.Turtle;
import org.nlogo.api.LogoException;
import org.nlogo.api.Syntax;
import org.nlogo.nvm.Context;
import org.nlogo.nvm.Reporter;
public final strictfp class _inlinkfrom
extends Reporter {
private final String breedName;
public _inlinkfrom() {
breedName = null;
}
public _inlinkfrom(String breedName) {
this.breedName = breedName;
}
@Override
public Syntax syntax() {
return Syntax.reporterSyntax
(new int[]{Syntax.AgentType()},
Syntax.AgentType(), "-T--");
}
@Override
public Object report(final Context context)
throws LogoException {
org.nlogo.agent.LinkManager linkManager = world.linkManager;
AgentSet breed = breedName == null ? world.links() : world.getLinkBreed(breedName);
mustNotBeUndirected(breed, context);
Turtle target = argEvalTurtle(context, 0);
Link link = linkManager.findLinkFrom(target, (Turtle) context.agent, breed, true);
if (link == null) {
return org.nlogo.api.Nobody$.MODULE$;
}
return link;
}
}