// (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.I18N;
import org.nlogo.api.LogoException;
import org.nlogo.api.Syntax;
import org.nlogo.nvm.Command;
import org.nlogo.nvm.Context;
import org.nlogo.nvm.EngineException;
public final strictfp class _createlinkwith
extends Command
implements org.nlogo.nvm.CustomAssembled {
private final String breedName;
public _createlinkwith() {
breedName = null;
}
public _createlinkwith(String breedName) {
this.breedName = breedName;
}
@Override
public Syntax syntax() {
return Syntax.commandSyntax
(new int[]{Syntax.AgentType(),
Syntax.CommandBlockType() | Syntax.OptionalType()},
"-T--", "---L", true);
}
@Override
public String toString() {
return super.toString() + ":" + breedName + ",+" + offset;
}
@Override
public void perform(final Context context) throws LogoException {
Turtle dest = argEvalTurtle(context, 0);
Turtle src = (Turtle) context.agent;
AgentSet breed = breedName == null ? world.links() : world.getLinkBreed(breedName);
mustNotBeDirected(breed, context);
checkForBreedCompatibility(breed, context);
if (breed == world.links()) {
breed.setDirected(false);
}
if (world.linkManager.findLinkEitherWay(src, dest, breed, false) == null) {
if (src == dest) {
throw new EngineException
(context, this,
I18N.errorsJ().get("org.nlogo.prim.$common.turtleCantLinkToSelf"));
}
if (src.id > dest.id) {
Turtle tmp = src;
src = dest;
dest = tmp;
}
if (src.id != -1 && dest.id != -1) {
Link link = world.linkManager.createLink(src, dest, breed);
workspace.joinForeverButtons(link);
if (offset - context.ip > 2) {
// Needed to run the commands with runExclusive(). I was not
// clear how to run those commands otherwise. -CLB 03/16/06
AgentSet edgeset = new org.nlogo.agent.ArrayAgentSet(Link.class, 1,
false, world);
edgeset.add(link);
context.runExclusiveJob(edgeset, next);
}
}
}
context.ip = offset;
}
public void assemble(org.nlogo.nvm.AssemblerAssistant a) {
a.add(this);
a.block();
a.done();
a.resume();
}
}