/
WhileCommand.java
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/
WhileCommand.java
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package com.denizenscript.denizencore.scripts.commands.queue;
import com.denizenscript.denizencore.exceptions.InvalidArgumentsException;
import com.denizenscript.denizencore.utilities.CoreUtilities;
import com.denizenscript.denizencore.utilities.debugging.Debug;
import com.denizenscript.denizencore.DenizenCore;
import com.denizenscript.denizencore.objects.core.ElementTag;
import com.denizenscript.denizencore.objects.ArgumentHelper;
import com.denizenscript.denizencore.scripts.ScriptEntry;
import com.denizenscript.denizencore.scripts.commands.BracedCommand;
import java.util.ArrayList;
import java.util.List;
public class WhileCommand extends BracedCommand {
public WhileCommand() {
setName("while");
setSyntax("while [stop/next/[<value>] (!)(<operator> <value>) (&&/|| ...)] [<commands>]");
setRequiredArguments(1, -1);
setParseArgs(false);
isProcedural = true;
}
// <--[command]
// @Name While
// @Syntax while [stop/next/[<value>] (!)(<operator> <value>) (&&/|| ...)] [<commands>]
// @Required 1
// @Maximum -1
// @Short Runs a series of braced commands until the tag returns false.
// @Group queue
// @Guide https://guide.denizenscript.com/guides/basics/loops.html
//
// @Description
// Runs a series of braced commands until the tag returns false.
// To end a while loop, use the 'stop' argument.
// To jump to the next entry in the loop, use the 'next' argument.
//
// @Tags
// <[loop_index]> to get the number of loops so far.
//
// @Usage
// Use to loop until a player sneaks, or the player goes offline. (Note: generally use 'waituntil' for this instead)
// - while !<player.is_sneaking> && <player.is_online>:
// - narrate "Waiting for you to sneak..."
// - wait 1s
//
// -->
private class WhileData {
public int index;
public List<String> value;
public long LastChecked;
int instaTicks;
}
@Override
public void parseArgs(ScriptEntry scriptEntry) throws InvalidArgumentsException {
List<String> comparisons = new ArrayList<>();
if (scriptEntry.getArguments().size() == 1) {
String arg = scriptEntry.getArguments().get(0);
if (CoreUtilities.equalsIgnoreCase(arg, "stop")) {
scriptEntry.addObject("stop", new ElementTag(true));
}
else if (CoreUtilities.equalsIgnoreCase(arg, "next")) {
scriptEntry.addObject("next", new ElementTag(true));
}
else if (arg.equals("\0CALLBACK")) {
scriptEntry.addObject("callback", new ElementTag(true));
}
}
for (String arg : scriptEntry.getArguments()) {
if (arg.equals("{")) {
break;
}
comparisons.add(arg);
}
if (comparisons.isEmpty() && !scriptEntry.hasObject("stop") && !scriptEntry.hasObject("next") && !scriptEntry.hasObject("callback")) {
throw new InvalidArgumentsException("Must specify a comparison value or 'stop' or 'next'!");
}
scriptEntry.addObject("braces", getBracedCommands(scriptEntry));
scriptEntry.addObject("comparisons", comparisons);
}
@SuppressWarnings("unchecked")
@Override
public void execute(ScriptEntry scriptEntry) {
ElementTag stop = scriptEntry.getElement("stop");
ElementTag next = scriptEntry.getElement("next");
ElementTag callback = scriptEntry.getElement("callback");
if (stop != null && stop.asBoolean()) {
if (scriptEntry.dbCallShouldDebug()) {
Debug.report(scriptEntry, getName(), stop.debug());
}
boolean hasnext = false;
for (int i = 0; i < scriptEntry.getResidingQueue().getQueueSize(); i++) {
ScriptEntry entry = scriptEntry.getResidingQueue().getEntry(i);
List<String> args = entry.getOriginalArguments();
if (entry.getCommandName().equals("WHILE") && args.size() > 0 && args.get(0).equals("\0CALLBACK")) {
hasnext = true;
break;
}
}
if (hasnext) {
while (scriptEntry.getResidingQueue().getQueueSize() > 0) {
ScriptEntry entry = scriptEntry.getResidingQueue().getEntry(0);
List<String> args = entry.getOriginalArguments();
if (entry.getCommandName().equals("WHILE") && args.size() > 0 && args.get(0).equals("\0CALLBACK")) {
scriptEntry.getResidingQueue().removeEntry(0);
break;
}
scriptEntry.getResidingQueue().removeEntry(0);
}
}
else {
Debug.echoError(scriptEntry.getResidingQueue(), "Cannot stop while: not in one!");
}
return;
}
else if (next != null && next.asBoolean()) {
if (scriptEntry.dbCallShouldDebug()) {
Debug.report(scriptEntry, getName(), next.debug());
}
boolean hasnext = false;
for (int i = 0; i < scriptEntry.getResidingQueue().getQueueSize(); i++) {
ScriptEntry entry = scriptEntry.getResidingQueue().getEntry(i);
List<String> args = entry.getOriginalArguments();
if (entry.getCommandName().equals("WHILE") && args.size() > 0 && args.get(0).equals("\0CALLBACK")) {
hasnext = true;
break;
}
}
if (hasnext) {
while (scriptEntry.getResidingQueue().getQueueSize() > 0) {
ScriptEntry entry = scriptEntry.getResidingQueue().getEntry(0);
List<String> args = entry.getOriginalArguments();
if (entry.getCommandName().equals("WHILE") && args.size() > 0 && args.get(0).equals("\0CALLBACK")) {
break;
}
scriptEntry.getResidingQueue().removeEntry(0);
}
}
else {
Debug.echoError(scriptEntry.getResidingQueue(), "Cannot stop while: not in one!");
}
return;
}
else if (callback != null && callback.asBoolean()) {
if (scriptEntry.getOwner() != null && (scriptEntry.getOwner().getCommandName().equals("WHILE") ||
scriptEntry.getOwner().getBracedSet() == null || scriptEntry.getOwner().getBracedSet().isEmpty() ||
scriptEntry.getBracedSet().get(0).value.get(scriptEntry.getBracedSet().get(0).value.size() - 1) != scriptEntry)) {
WhileData data = (WhileData) scriptEntry.getOwner().getData();
data.index++;
if (System.currentTimeMillis() - data.LastChecked < 50) {
data.instaTicks++;
int max = DenizenCore.getImplementation().whileMaxLoops();
if (data.instaTicks > max && max != 0) {
return;
}
}
else {
data.instaTicks = 0;
}
data.LastChecked = System.currentTimeMillis();
boolean run = new IfCommand.ArgComparer().compare(new ArrayList(data.value), scriptEntry);
if (run) {
if (scriptEntry.dbCallShouldDebug()) {
Debug.echoDebug(scriptEntry, Debug.DebugElement.Header, "While loop " + data.index);
}
scriptEntry.getResidingQueue().addDefinition("loop_index", String.valueOf(data.index));
List<ScriptEntry> bracedCommands = BracedCommand.getBracedCommands(scriptEntry.getOwner()).get(0).value;
ScriptEntry callbackEntry = scriptEntry.clone();
callbackEntry.copyFrom(scriptEntry);
callbackEntry.setOwner(scriptEntry.getOwner());
bracedCommands.add(callbackEntry);
for (int i = 0; i < bracedCommands.size(); i++) {
bracedCommands.get(i).setInstant(true);
}
scriptEntry.getResidingQueue().injectEntries(bracedCommands, 0);
}
else {
if (scriptEntry.dbCallShouldDebug()) {
Debug.echoDebug(scriptEntry, Debug.DebugElement.Header, "While loop complete");
}
}
}
else {
Debug.echoError(scriptEntry.getResidingQueue(), "While CALLBACK invalid: not a real callback!");
}
}
else {
List<String> comparisons = (List<String>) scriptEntry.getObject("comparisons");
List<BracedData> data = ((List<BracedData>) scriptEntry.getObject("braces"));
if (data == null || data.isEmpty()) {
Debug.echoError(scriptEntry.getResidingQueue(), "Empty subsection - did you forget a ':'?");
return;
}
List<ScriptEntry> bracedCommandsList = data.get(0).value;
if (bracedCommandsList == null || bracedCommandsList.isEmpty()) {
Debug.echoError(scriptEntry.getResidingQueue(), "Empty subsection - did you forget to add the sub-commands inside the command?");
return;
}
boolean run = new IfCommand.ArgComparer().compare(comparisons, scriptEntry);
if (scriptEntry.dbCallShouldDebug()) {
Debug.report(scriptEntry, getName(), ArgumentHelper.debugObj("run_first_loop", run));
}
if (!run) {
return;
}
WhileData datum = new WhileData();
datum.index = 1;
datum.value = comparisons;
datum.LastChecked = System.currentTimeMillis();
datum.instaTicks = 1;
scriptEntry.setData(datum);
ScriptEntry callbackEntry = new ScriptEntry("WHILE", new String[] {"\0CALLBACK"},
(scriptEntry.getScript() != null ? scriptEntry.getScript().getContainer() : null));
callbackEntry.copyFrom(scriptEntry);
callbackEntry.setOwner(scriptEntry);
bracedCommandsList.add(callbackEntry);
scriptEntry.getResidingQueue().addDefinition("loop_index", "1");
for (int i = 0; i < bracedCommandsList.size(); i++) {
bracedCommandsList.get(i).setInstant(true);
}
scriptEntry.setInstant(true);
scriptEntry.getResidingQueue().injectEntries(bracedCommandsList, 0);
}
}
}