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RandomCommand.java
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RandomCommand.java
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package net.aufdemrand.denizencore.scripts.commands.core;
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 net.aufdemrand.denizencore.utilities.debugging.dB;
import java.util.List;
public class RandomCommand extends BracedCommand {
// <--[command]
// @Name Random
// @Syntax random [<#>/<commands>]
// @Required 0
// @Short Selects a random choice from the following script commands.
// @Group core
//
// @Description
// The random command picks one of the following script command
// and skips all the other script commands that are in range.
//
// Specifying a number as argument will get the next following
// scripts commands in the queue to be picked at random.
// Example "- random 3" will get the next 3 commands
// in the current queue and pick one of those 3 to run,
// the other 2 commands, that was in range, will be skipped.
//
// If braces are used for argument, then it is for every
// denizen command, in the brace, one of them will be picked
// and the rest, in the brace, will be skipped.
//
// @Tags
// <entry[saveName].possibilities> returns an Element of the possibility count.
// <entry[saveName].selected> returns an Element of the selected number.
//
// @Usage
// Use to choose randomly from the following commands
// - random 3
// - narrate "hi"
// - narrate "hello"
// - narrate "hey"
//
// @Usage
// Use to choose randomly from a braced set of commands
// - random:
// - narrate "hi"
// - narrate "hello"
// - narrate "hey"
//
// @Usage
// Use to perform multiple commands randomly
// - random:
// - repeat 1:
// - narrate "Hello"
// - narrate "How are you?"
// - repeat 1:
// - narrate "Hey"
// - narrate "It is a nice day."
// -->
@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.interpretArguments(scriptEntry.aHArgs)) {
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) {
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));
if (scriptEntry.dbCallShouldDebug()) {
dB.report(scriptEntry, getName(), aH.debugObj("possibilities", possibilities) + aH.debugObj("choice", selected + 1));
}
scriptEntry.setInstant(true);
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), 0);
}
}
}