/*
* This file is part of Skript.
*
* Skript is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Skript is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Skript. If not, see <http://www.gnu.org/licenses/>.
*
*
* Copyright 2011-2014 Peter Güttinger
*
*/
package ch.njol.skript.expressions;
import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.block.Sign;
import org.bukkit.event.Event;
import org.bukkit.event.block.SignChangeEvent;
import org.eclipse.jdt.annotation.Nullable;
import ch.njol.skript.Skript;
import ch.njol.skript.classes.Changer.ChangeMode;
import ch.njol.skript.doc.Description;
import ch.njol.skript.doc.Examples;
import ch.njol.skript.doc.Name;
import ch.njol.skript.doc.Since;
import ch.njol.skript.effects.Delay;
import ch.njol.skript.lang.Expression;
import ch.njol.skript.lang.ExpressionType;
import ch.njol.skript.lang.SkriptParser.ParseResult;
import ch.njol.skript.lang.util.SimpleExpression;
import ch.njol.skript.lang.util.SimpleLiteral;
import ch.njol.util.Kleenean;
/**
* @author Peter Güttinger
*/
@Name("Sign Text")
@Description("A line of text on a sign. Can be changed, but remember that there is a 16 character limit per line (including colour codes that use 2 characters each).")
@Examples({"on rightclick on sign:",
" line 2 of the clicked block is \"[Heal]\":",
" heal the player",
" set line 3 to \"%player%\""})
@Since("1.3")
public class ExprSignText extends SimpleExpression<String> {
static {
Skript.registerExpression(ExprSignText.class, String.class, ExpressionType.PROPERTY,
"[the] line %number% [of %block%]", "[the] (1¦1st|1¦first|2¦2nd|2¦second|3¦3rd|3¦third|4¦4th|4¦fourth) line [of %block%]");
}
@SuppressWarnings("null")
private Expression<Number> line;
@SuppressWarnings("null")
private Expression<Block> block;
@SuppressWarnings({"unchecked", "null"})
@Override
public boolean init(final Expression<?>[] exprs, final int matchedPattern, final Kleenean isDelayed, final ParseResult parseResult) {
if (matchedPattern == 0)
line = (Expression<Number>) exprs[0];
else
line = new SimpleLiteral<Number>(parseResult.mark, false);
block = (Expression<Block>) exprs[exprs.length - 1];
return true;
}
@Override
public boolean isSingle() {
return true;
}
@Override
public Class<? extends String> getReturnType() {
return String.class;
}
@Override
@Nullable
protected String[] get(final Event e) {
final Number l = line.getSingle(e);
if (l == null)
return new String[0];
final int line = l.intValue() - 1;
if (line < 0 || line > 3)
return new String[0];
if (getTime() >= 0 && block.isDefault() && e instanceof SignChangeEvent && !Delay.isDelayed(e)) {
return new String[] {((SignChangeEvent) e).getLine(line)};
}
final Block b = block.getSingle(e);
if (b == null)
return new String[0];
if (b.getType() != Material.SIGN_POST && b.getType() != Material.WALL_SIGN)
return new String[0];
return new String[] {((Sign) b.getState()).getLine(line)};
}
@Override
public String toString(final @Nullable Event e, final boolean debug) {
return "line " + line.toString(e, debug) + " of " + block.toString(e, debug);
}
// TODO allow add, remove, and remove all (see ExprLore)
@Override
@Nullable
public Class<?>[] acceptChange(final ChangeMode mode) {
if (mode == ChangeMode.DELETE || mode == ChangeMode.SET)
return new Class[] {String.class};
return null;
}
static boolean hasUpdateBooleanBoolean = true;
@SuppressWarnings("incomplete-switch")
@Override
public void change(final Event e, final @Nullable Object[] delta, final ChangeMode mode) throws UnsupportedOperationException {
final Number l = line.getSingle(e);
if (l == null)
return;
final int line = l.intValue() - 1;
if (line < 0 || line > 3)
return;
final Block b = block.getSingle(e);
if (b == null)
return;
if (getTime() >= 0 && e instanceof SignChangeEvent && b.equals(((SignChangeEvent) e).getBlock()) && !Delay.isDelayed(e)) {
switch (mode) {
case DELETE:
((SignChangeEvent) e).setLine(line, "");
break;
case SET:
assert delta != null;
((SignChangeEvent) e).setLine(line, (String) delta[0]);
break;
}
} else {
if (b.getType() != Material.SIGN_POST && b.getType() != Material.WALL_SIGN)
return;
final Sign s = (Sign) b.getState();
switch (mode) {
case DELETE:
s.setLine(line, "");
break;
case SET:
assert delta != null;
s.setLine(line, (String) delta[0]);
break;
}
if (hasUpdateBooleanBoolean) {
try {
s.update(false, false);
} catch (final NoSuchMethodError err) {
hasUpdateBooleanBoolean = false;
s.update();
}
} else {
s.update();
}
}
}
@Override
public boolean setTime(final int time) {
return super.setTime(time, SignChangeEvent.class, block);
}
}