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>

1 files changed, 107 insertions, 0 deletions

diff --git a/src/main/java/io/github/moulberry/notenoughupdates/miscgui/SignCalculator.java b/src/main/java/io/github/moulberry/notenoughupdates/miscgui/SignCalculator.java
new file mode 100644
index 00000000..115458c9
--- /dev/null
+++ b/src/main/java/io/github/moulberry/notenoughupdates/miscgui/SignCalculator.java
@@ -0,0 +1,107 @@
+/*
+ * 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.miscgui;
+
+import io.github.moulberry.notenoughupdates.NotEnoughUpdates;
+import io.github.moulberry.notenoughupdates.events.SignSubmitEvent;
+import io.github.moulberry.notenoughupdates.mixins.AccessorGuiEditSign;
+import io.github.moulberry.notenoughupdates.util.Calculator;
+import io.github.moulberry.notenoughupdates.util.Utils;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.inventory.GuiEditSign;
+import net.minecraft.tileentity.TileEntitySign;
+import net.minecraft.util.EnumChatFormatting;
+import net.minecraftforge.client.event.GuiScreenEvent;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+
+import java.math.BigDecimal;
+import java.util.Objects;
+
+public class SignCalculator {
+
+	String lastSource = null;
+	BigDecimal lastResult = null;
+	Calculator.CalculatorException lastException = null;
+
+	private boolean isEnabled() {
+		return NotEnoughUpdates.INSTANCE.config.misc.calculationMode != 0;
+	}
+
+	@SubscribeEvent
+	public void onSignDrawn(GuiScreenEvent.DrawScreenEvent.Post event) {
+		if (!(event.gui instanceof GuiEditSign))
+			return;
+		if (!isEnabled()) return;
+		GuiEditSign guiEditSign = (GuiEditSign) event.gui;
+		TileEntitySign tileSign = ((AccessorGuiEditSign) guiEditSign).getTileSign();
+		if (!tileSign.signText[1].getUnformattedText().equals("^^^^^^^^^^^^^^^")) return;
+		refresh(tileSign.signText[0].getUnformattedText());
+		Utils.drawStringCentered(
+			getRenderedString(),
+			Minecraft.getMinecraft().fontRendererObj,
+			guiEditSign.width / 2F,
+			guiEditSign.height / 4F - 120,
+			false,
+			0x808080FF
+		);
+	}
+
+	@SubscribeEvent
+	public void onSignSubmitted(SignSubmitEvent event) {
+		if (!isEnabled()) return;
+		if (Objects.equals(event.lines[1], "^^^^^^^^^^^^^^^")) {
+			refresh(event.lines[0]);
+			if (lastResult != null) {
+				event.lines[0] = lastResult.toPlainString();
+			}
+		}
+	}
+
+	public String getRenderedString() {
+		if (lastResult != null) {
+			String lr = lastResult.toPlainString();
+			if (Minecraft.getMinecraft().fontRendererObj.getStringWidth(lr) > 90) {
+				return EnumChatFormatting.WHITE + lastSource + " = " + EnumChatFormatting.RED + "Result too long";
+			}
+			return EnumChatFormatting.WHITE + lastSource + " = " + EnumChatFormatting.GREEN + lr;
+		} else if (lastException != null) {
+			return EnumChatFormatting.RED + lastException.getMessage();
+		}
+		return EnumChatFormatting.RED + "No calculation has been done.";
+	}
+
+	private void refresh(String source) {
+		if (Objects.equals(source, lastSource)) return;
+		lastSource = source;
+		int calculationMode = NotEnoughUpdates.INSTANCE.config.misc.calculationMode;
+		if (source.isEmpty() || calculationMode == 0 || (calculationMode == 1 && !source.startsWith("!"))) {
+			lastResult = null;
+			lastException = null;
+			return;
+		}
+		try {
+			lastResult = Calculator.calculate(calculationMode == 1 ? source.substring(1) : source);
+			lastException = null;
+		} catch (Calculator.CalculatorException ex) {
+			lastException = ex;
+			lastResult = null;
+		}
+	}
+}