/
RandomCommand.java
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/
RandomCommand.java
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package net.aufdemrand.denizen.scripts.commands.core;
import net.aufdemrand.denizen.utilities.debugging.dB;
import net.aufdemrand.denizencore.exceptions.CommandExecutionException;
import net.aufdemrand.denizencore.exceptions.InvalidArgumentsException;
import net.aufdemrand.denizencore.objects.Element;
import net.aufdemrand.denizencore.objects.aH;
import net.aufdemrand.denizencore.scripts.ScriptEntry;
import net.aufdemrand.denizencore.scripts.commands.BracedCommand;
import net.aufdemrand.denizencore.scripts.queues.ScriptQueue;
import net.aufdemrand.denizencore.utilities.CoreUtilities;
import java.util.List;
public class RandomCommand extends BracedCommand {
@Override
public void parseArgs(ScriptEntry scriptEntry) throws InvalidArgumentsException {
List<BracedData> bdat = getBracedCommands(scriptEntry);
if (bdat != null && bdat.size() > 0) {
scriptEntry.addObject("braces", bdat);
}
for (aH.Argument arg : aH.interpret(scriptEntry.getArguments())) {
if (arg.matches("{")) {
break;
}
else if (!scriptEntry.hasObject("possibilities")
&& arg.matchesPrimitive(aH.PrimitiveType.Integer)) {
scriptEntry.addObject("possibilities", arg.asElement());
}
else {
arg.reportUnhandled();
}
}
if (!scriptEntry.hasObject("braces")) {
if (!scriptEntry.hasObject("possibilities")) {
throw new InvalidArgumentsException("Missing possibilities!");
}
if (scriptEntry.getElement("possibilities").asInt() <= 1) {
throw new InvalidArgumentsException("Must randomly select more than one item.");
}
if (scriptEntry.getResidingQueue().getQueueSize() < scriptEntry.getElement("possibilities").asInt()) {
throw new InvalidArgumentsException("Invalid Size! Random # must not be larger than the script!");
}
}
}
private int previous = 0;
private int previous2 = 0;
private int previous3 = 0;
@SuppressWarnings("unchecked")
@Override
public void execute(ScriptEntry scriptEntry) throws CommandExecutionException {
int possibilities = 0;
ScriptQueue queue = scriptEntry.getResidingQueue();
List<ScriptEntry> bracedCommands = null;
if (!scriptEntry.hasObject("braces")) {
possibilities = scriptEntry.getElement("possibilities").asInt();
}
else {
bracedCommands = ((List<BracedData>) scriptEntry.getObject("braces")).get(0).value;
possibilities = bracedCommands.size();
}
int selected = CoreUtilities.getRandom().nextInt(possibilities);
// Try to not duplicate
if (selected == previous || selected == previous2 || selected == previous3) {
selected = CoreUtilities.getRandom().nextInt(possibilities);
}
if (selected == previous || selected == previous2 || selected == previous3) {
selected = CoreUtilities.getRandom().nextInt(possibilities);
}
previous3 = previous2;
previous2 = previous;
previous = selected;
scriptEntry.addObject("possibilities", new Element(possibilities));
scriptEntry.addObject("selected", new Element(selected));
dB.report(scriptEntry, getName(), aH.debugObj("possibilities", possibilities) + aH.debugObj("choice", selected + 1));
if (bracedCommands == null) {
ScriptEntry keeping = null;
for (int x = 0; x < possibilities; x++) {
if (x != selected) {
queue.removeEntry(0);
}
else {
dB.echoDebug(scriptEntry, "...selected '" + queue.getEntry(0).getCommandName() + ": "
+ queue.getEntry(0).getArguments() + "'.");
keeping = queue.getEntry(0);
queue.removeEntry(0);
}
}
queue.injectEntry(keeping, 0);
}
else {
queue.injectEntry(bracedCommands.get(selected).addObject("reqID", scriptEntry.getObject("reqID")), 0);
}
}
}