package net.aufdemrand.denizen.scripts.commands.entity;
import java.util.Arrays;
import java.util.List;
import net.aufdemrand.denizen.BukkitScriptEntryData;
import net.aufdemrand.denizencore.exceptions.CommandExecutionException;
import net.aufdemrand.denizencore.exceptions.InvalidArgumentsException;
import net.aufdemrand.denizen.scripts.ScriptEntry;
import net.aufdemrand.denizen.scripts.commands.AbstractCommand;
import net.aufdemrand.denizen.objects.aH;
import net.aufdemrand.denizen.objects.dEntity;
import net.aufdemrand.denizen.objects.dList;
import net.aufdemrand.denizen.utilities.debugging.dB;
import net.citizensnpcs.api.ai.Navigator;
import net.citizensnpcs.api.ai.TargetType;
/**
*
* Makes NPCs or entities attack a certain entity.
*
* @author David Cernat
*
*/
public class AttackCommand extends AbstractCommand {
@Override
public void parseArgs(ScriptEntry scriptEntry) throws InvalidArgumentsException {
for (aH.Argument arg : aH.interpret(scriptEntry.getArguments())) {
if (!scriptEntry.hasObject("cancel")
&& arg.matches("cancel", "stop")) {
scriptEntry.addObject("cancel", "");
}
else if (!scriptEntry.hasObject("target")
&& arg.matchesArgumentType(dEntity.class)
&& arg.matchesPrefix("target", "t")) {
// Single entity arg
scriptEntry.addObject("target", arg.asType(dEntity.class));
}
else if (!scriptEntry.hasObject("entities")
&& arg.matchesArgumentList(dEntity.class)
&& !arg.matchesPrefix("target", "t")) {
// Entity dList arg
scriptEntry.addObject("entities", arg.asType(dList.class).filter(dEntity.class));
}
else arg.reportUnhandled();
}
// Use the player as the target if one is not specified
if (!scriptEntry.hasObject("target"))
scriptEntry.addObject("target", ((BukkitScriptEntryData)scriptEntry.entryData).hasPlayer() ? ((BukkitScriptEntryData)scriptEntry.entryData).getPlayer().getDenizenEntity(): null);
// Use the NPC as the attacking entity if one is not specified
scriptEntry.defaultObject("entities",
((BukkitScriptEntryData)scriptEntry.entryData).hasNPC() ? Arrays.asList(((BukkitScriptEntryData)scriptEntry.entryData).getNPC().getDenizenEntity()) : null);
// Check to make sure required arguments have been filled
if (!scriptEntry.hasObject("entities"))
throw new InvalidArgumentsException("Must specify entity/entities!");
if (!scriptEntry.hasObject("target") && !scriptEntry.hasObject("cancel"))
throw new InvalidArgumentsException("Must specify a target!");
}
@SuppressWarnings("unchecked")
@Override
public void execute(final ScriptEntry scriptEntry) throws CommandExecutionException {
// Get objects
List<dEntity> entities = (List<dEntity>) scriptEntry.getObject("entities");
dEntity target = (dEntity) scriptEntry.getObject("target");
Boolean cancel = scriptEntry.hasObject("cancel");
// Report to dB
dB.report(scriptEntry, getName(), (cancel ? aH.debugObj("cancel", cancel) : "") +
aH.debugObj("entities", entities.toString()) +
(target != null ? aH.debugObj("target", target) : ""));
// Go through all the entities and make them either attack
// the target or stop attacking
for (dEntity entity : entities) {
if (entity.isNPC()) {
Navigator nav = entity.getDenizenNPC().getCitizen().getNavigator();
if (cancel.equals(false)) {
nav.setTarget(target.getBukkitEntity(), true);
}
else {
// Only cancel navigation if the NPC is attacking something
if (nav.isNavigating()
&& nav.getTargetType().equals(TargetType.ENTITY)
&& nav.getEntityTarget().isAggressive()) {
nav.cancelNavigation();
}
}
}
else {
if (cancel.equals(false)) {
entity.target(target.getLivingEntity());
}
else {
entity.target(null);
}
}
}
}
}