Make /fillbiome limit customisable with fillLimit (#1605)

src/main/java/carpet/mixins/FillBiomeCommandMixin.java

@@ -0,0 +1,17 @@
+package carpet.mixins;
+
+import carpet.CarpetSettings;
+import net.minecraft.server.commands.FillBiomeCommand;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.Constant;
+import org.spongepowered.asm.mixin.injection.ModifyConstant;
+
+@Mixin(FillBiomeCommand.class)
+public class FillBiomeCommandMixin
+{
+	@ModifyConstant(method = "fill", constant = @Constant(intValue = 32768))
+	private static int fillLimit(int original)
+	{
+		return CarpetSettings.fillLimit;
+	}
+}