Added a calculator (#180)

* Added a calculator

* Remove stuff

* also add t

* Update Misc.java

* On by default

* add x for multiplication, fixed - not working and quick math solver

Co-authored-by: nopo <noahogno@gmail.com>

3 files changed, 75 insertions, 0 deletions

diff --git a/src/main/java/io/github/moulberry/notenoughupdates/commands/Commands.java b/src/main/java/io/github/moulberry/notenoughupdates/commands/Commands.java
index 86411f4f..b152bc09 100644
--- a/src/main/java/io/github/moulberry/notenoughupdates/commands/Commands.java
+++ b/src/main/java/io/github/moulberry/notenoughupdates/commands/Commands.java
@@ -37,6 +37,7 @@ import io.github.moulberry.notenoughupdates.commands.help.LinksCommand;
 import io.github.moulberry.notenoughupdates.commands.help.SettingsCommand;
 import io.github.moulberry.notenoughupdates.commands.help.StorageViewerWhyCommand;
 import io.github.moulberry.notenoughupdates.commands.misc.AhCommand;
+import io.github.moulberry.notenoughupdates.commands.misc.CalculatorCommand;
 import io.github.moulberry.notenoughupdates.commands.misc.CalendarCommand;
 import io.github.moulberry.notenoughupdates.commands.misc.CosmeticsCommand;
 import io.github.moulberry.notenoughupdates.commands.misc.CustomizeCommand;
@@ -91,6 +92,7 @@ public class Commands {
 		ClientCommandHandler.instance.registerCommand(new ScreenCommand("neuoverlay", NEUOverlayPlacements::new));
 		//ClientCommandHandler.instance.registerCommand(new ScreenCommand("neututorial", NeuTutorial::new));
 		ClientCommandHandler.instance.registerCommand(new AhCommand());
+		ClientCommandHandler.instance.registerCommand(new CalculatorCommand());
 		ClientCommandHandler.instance.registerCommand(new CalendarCommand());
 
 		// Fairy Soul Commands
diff --git a/src/main/java/io/github/moulberry/notenoughupdates/commands/help/HelpCommand.java b/src/main/java/io/github/moulberry/notenoughupdates/commands/help/HelpCommand.java
index ba49221e..a52fcd1d 100644
--- a/src/main/java/io/github/moulberry/notenoughupdates/commands/help/HelpCommand.java
+++ b/src/main/java/io/github/moulberry/notenoughupdates/commands/help/HelpCommand.java
@@ -52,6 +52,7 @@ public class HelpCommand extends ClientCommandBase {
 			"\u00a76/neuah \u00a7r\u00a77- Opens neu's custom ah GUI.",
 			"\u00a76/neumap \u00a7r\u00a77- Opens the dungeon map GUI.",
 			"\u00a76/neucalendar \u00a7r\u00a77- Opens neu's custom calendar GUI.",
+			"\u00a76/neucalc \u00a7r\u00a77- Run calculations.",
 			"",
 			"\u00a76\u00a7lOld commands:",
 			"\u00a76/peek \u00a7b?{user} \u00a72\u2D35 \u00a7r\u00a77- Shows quickly stats for a user.",
diff --git a/src/main/java/io/github/moulberry/notenoughupdates/commands/misc/CalculatorCommand.java b/src/main/java/io/github/moulberry/notenoughupdates/commands/misc/CalculatorCommand.java
new file mode 100644
index 00000000..e73e3b32
--- /dev/null
+++ b/src/main/java/io/github/moulberry/notenoughupdates/commands/misc/CalculatorCommand.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2022 NotEnoughUpdates contributors
+ *
+ * This file is part of NotEnoughUpdates.
+ *
+ * NotEnoughUpdates is free software: you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * NotEnoughUpdates 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with NotEnoughUpdates. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package io.github.moulberry.notenoughupdates.commands.misc;
+
+import io.github.moulberry.notenoughupdates.commands.ClientCommandBase;
+import io.github.moulberry.notenoughupdates.util.Calculator;
+import net.minecraft.command.CommandException;
+import net.minecraft.command.ICommandSender;
+import net.minecraft.util.ChatComponentText;
+import net.minecraft.util.EnumChatFormatting;
+
+import java.math.BigDecimal;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Objects;
+
+public class CalculatorCommand extends ClientCommandBase {
+	public CalculatorCommand() {
+		super("neucalc");
+	}
+
+	@Override
+	public List<String> getCommandAliases() {
+		return Arrays.asList("neucalculator");
+	}
+
+	@Override
+	public void processCommand(ICommandSender sender, String[] args) throws CommandException {
+		if ((args.length == 1 && Objects.equals(args[0], "help")) || args.length == 0) {
+			sender.addChatMessage(new ChatComponentText(
+				"\n§e[NEU] §5Its a calculator.\n" +
+				"§eFor Example §b/neucalc 3m*7k§e.\n" +
+				"§eYou can also use suffixes (k, m, b, t, s)§e.\n" +
+				"§eThe \"s\" suffix acts as 64.\n" +
+				"§eTurn on Sign Calculator in /neu misc to also support this in sign popups.\n"));
+			return;
+		}
+		String source = String.join(" ", args);
+		try {
+			BigDecimal calculate = Calculator.calculate(source);
+			sender.addChatMessage(new ChatComponentText(
+				EnumChatFormatting.YELLOW + "[NEU] " + EnumChatFormatting.WHITE + source + " = " + EnumChatFormatting.GREEN +
+					calculate.toPlainString()
+			));
+		} catch (Calculator.CalculatorException e) {
+			sender.addChatMessage(new ChatComponentText(
+				EnumChatFormatting.YELLOW + "[NEU] " + EnumChatFormatting.RED + "Error during calculation: " +
+					e.getMessage() + "\n" +
+					EnumChatFormatting.WHITE + source.substring(0, e.getOffset()) + EnumChatFormatting.DARK_RED +
+					source.substring(e.getOffset(), e.getLength() + e.getOffset()) + EnumChatFormatting.GRAY +
+					source.substring(e.getLength() + e.getOffset())
+			));
+		}
+	}
+}