3 files changed, 107 insertions, 0 deletions
diff --git a/src/main/java/de/hysky/skyblocker/mixins/SignEditScreenMixin.java b/src/main/java/de/hysky/skyblocker/mixins/SignEditScreenMixin.java
new file mode 100644
index 00000000..a88f97ef
--- /dev/null
+++ b/src/main/java/de/hysky/skyblocker/mixins/SignEditScreenMixin.java
@@ -0,0 +1,32 @@
+package de.hysky.skyblocker.mixin;
+
+
+import de.hysky.skyblocker.skyblock.SignCalculator;
+import net.minecraft.block.entity.SignBlockEntity;
+import net.minecraft.client.gui.DrawContext;
+import net.minecraft.client.gui.screen.ingame.AbstractSignEditScreen;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import java.util.Objects;
+
+@Mixin(AbstractSignEditScreen.class)
+public abstract class SignEditScreenMixin{
+    @Shadow
+    @Final
+    private String[] messages;
+
+    @Inject(method = "render", at = @At("HEAD"))
+    private void skyblocker$render(DrawContext context, int mouseX, int mouseY, float delta, CallbackInfo ci) {
+        //if the sign is being used to enter number send it to the sign calculator
+        if (Objects.equals(messages[1], "^^^^^^^^^^^^^^^")) {
+            SignCalculator.renderSign(context, messages);
+        }
+
+    }
+
+}
diff --git a/src/main/java/de/hysky/skyblocker/skyblock/SignCalculator.java b/src/main/java/de/hysky/skyblocker/skyblock/SignCalculator.java
new file mode 100644
index 00000000..ab0d417c
--- /dev/null
+++ b/src/main/java/de/hysky/skyblocker/skyblock/SignCalculator.java
@@ -0,0 +1,74 @@
+package de.hysky.skyblocker.skyblock;
+
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.gui.DrawContext;
+import net.minecraft.text.Text;
+import net.minecraft.util.Formatting;
+import net.minecraft.util.Util;
+import net.minecraft.util.math.Vec3i;
+
+import java.awt.*;
+import java.awt.image.LookupTable;
+import java.text.DecimalFormat;
+import java.util.HashMap;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class SignCalculator {
+
+    private static final MinecraftClient CLIENT = MinecraftClient.getInstance();
+
+    private static final Pattern NUMBER_PATTERN = Pattern.compile("(\\d+\\.?\\d*)([kmb]?)");
+    private static final  DecimalFormat FORMATTER = new DecimalFormat("#,###.##");
+
+    private static final HashMap<String, Integer> magnitudeValues = Util.make(new HashMap<>(), map -> {
+        map.put("k", 1000);
+        map.put("m", 1000000);
+        map.put("b", 1000000000);
+    });
+
+    private static String input;
+    private static Double output;
+
+    public static void renderSign(DrawContext context, String[] messages){
+        input = messages[0];
+
+        calculateValue();
+
+        render(context);
+    }
+
+    public static void calculateValue() {
+        Matcher numberMatcher = NUMBER_PATTERN.matcher(input.toLowerCase());
+        if (!numberMatcher.matches()) {
+            output = null;
+            return;
+        }
+        double number = Double.parseDouble(numberMatcher.group(1)); //
+        String magnitude = numberMatcher.group(2);
+
+        if (!magnitude.isEmpty()) {
+            if (!magnitudeValues.containsKey(magnitude)) {//its invalid if its another letter
+                output = null;
+                return;
+            }
+            number *= magnitudeValues.get(magnitude);
+        }
+
+        output = number;
+
+    }
+
+
+    private static void render(DrawContext context) {
+        Text text;
+        if (output == null) {
+            text = Text.literal("test").formatted(Formatting.RED);
+        }
+        else {
+            text = Text.literal(input +" = " + FORMATTER.format(output)).formatted(Formatting.GREEN);
+        }
+
+        context.drawCenteredTextWithShadow(CLIENT.textRenderer, text,context.getScaledWindowWidth() /2 , 55,0xFFFFFFFF);
+    }
+}
diff --git a/src/main/resources/skyblocker.mixins.json b/src/main/resources/skyblocker.mixins.json
index 0032a557..828cc206 100644
--- a/src/main/resources/skyblocker.mixins.json
+++ b/src/main/resources/skyblocker.mixins.json
@@ -32,6 +32,7 @@
     "PlayerSkinTextureMixin",
     "RenderFishMixin",
     "ScoreboardMixin",
+    "SignEditScreenMixin",
     "SocialInteractionsPlayerListWidgetMixin",
     "WindowMixin",
     "WorldRendererMixin",