From 1b1dc6f9986ab9a5e2d1573e086edec7ebe8c781 Mon Sep 17 00:00:00 2001
From: DaSH <joelbenrene@gmail.com>
Date: Mon, 27 Apr 2026 23:32:45 +0200
Subject: [PATCH] Can deactivate leading zeroes

---
 .../render/tileentity/RenderRBMKNumitron.java   |  4 +++-
 .../machine/rbmk/TileEntityRBMKNumitron.java    | 17 +++++++++++++++++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/hbm/render/tileentity/RenderRBMKNumitron.java b/src/main/java/com/hbm/render/tileentity/RenderRBMKNumitron.java
index 704d3425d..83c4202ef 100644
--- a/src/main/java/com/hbm/render/tileentity/RenderRBMKNumitron.java
+++ b/src/main/java/com/hbm/render/tileentity/RenderRBMKNumitron.java
@@ -56,7 +56,8 @@ public class RenderRBMKNumitron extends TileEntitySpecialRenderer {
 			double yOffset = 0.5625D;
 			
 			String value = BobMathUtil.getShortNumber(unit.value);
-			while(value.length() < 7) value = "0" + value;
+			String fill_char = unit.no_leading_zeroes?" ":"0";
+			while(value.length() < 7) value = fill_char + value;
 			
 			Tessellator tess = Tessellator.instance;
 			tess.startDrawingQuads();
@@ -65,6 +66,7 @@ public class RenderRBMKNumitron extends TileEntitySpecialRenderer {
 				char c = value.charAt(j);
 				double u = -1;
 				double v = 0;
+				if(c == ' ') continue;
 				if(c == '.') {u = 0.9; v = 0.5;}
 				if(c == '-') {u = 0.8; v = 0.5;}
 				else if(c == 'k') {u = 0.0; v = 0.5;}
diff --git a/src/main/java/com/hbm/tileentity/machine/rbmk/TileEntityRBMKNumitron.java b/src/main/java/com/hbm/tileentity/machine/rbmk/TileEntityRBMKNumitron.java
index 75daa384b..7356543cc 100644
--- a/src/main/java/com/hbm/tileentity/machine/rbmk/TileEntityRBMKNumitron.java
+++ b/src/main/java/com/hbm/tileentity/machine/rbmk/TileEntityRBMKNumitron.java
@@ -88,6 +88,8 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 		public long value;
 		/** Whether this display is visible on the panel */
 		public boolean active;
+		/** If leading zeros should not be added */
+		public boolean no_leading_zeroes;
 		
 		public DisplayUnit(int initialIndex) {
 			label = "Display " + (initialIndex + 1);
@@ -113,6 +115,7 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 		}
 
 		public void serialize(ByteBuf buf) {
+			buf.writeBoolean(no_leading_zeroes);
 			buf.writeBoolean(active);
 			buf.writeBoolean(polling);
 			BufferUtil.writeString(buf, label);
@@ -121,6 +124,7 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 		}
 
 		public void deserialize(ByteBuf buf) {
+			no_leading_zeroes = buf.readBoolean();
 			active = buf.readBoolean();
 			polling = buf.readBoolean();
 			label = BufferUtil.readString(buf);
@@ -129,6 +133,7 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 		}
 
 		public void readFromNBT(NBTTagCompound nbt, int index) {
+			this.no_leading_zeroes = nbt.getBoolean("no_leading_zeroes" + index);
 			this.active = nbt.getBoolean("active" + index);
 			this.polling = nbt.getBoolean("polling" + index);
 			this.label = nbt.getString("label" + index);
@@ -137,6 +142,7 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 		}
 
 		public void writeToNBT(NBTTagCompound nbt, int index) {
+			nbt.setBoolean("no_leading_zeroes" + index, no_leading_zeroes);
 			nbt.setBoolean("active" + index, active);
 			nbt.setBoolean("polling" + index, polling);
 			nbt.setString("label" + index, label);
@@ -183,6 +189,7 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 		int idx = args.checkInteger(0) - 1;
 		if(idx < 0 || idx >= 2) return new Object[] {null, "Invalid index (1-2)"};
 		java.util.LinkedHashMap<String, Object> map = new java.util.LinkedHashMap<>();
+		map.put("no_leading_zeroes", displays[idx].no_leading_zeroes);
 		map.put("active", displays[idx].active);
 		map.put("polling", displays[idx].polling);
 		map.put("label", displays[idx].label);
@@ -241,4 +248,14 @@ public class TileEntityRBMKNumitron extends TileEntityLoadedBase implements IGUI
 		markDirty();
 		return new Object[] {true};
 	}
+
+	@Callback(direct = true, limit = 2)
+	@Optional.Method(modid = "OpenComputers")
+	public Object[] setDisplayNoLeadingZeroes(Context context, Arguments args) {
+		int idx = args.checkInteger(0) - 1;
+		if(idx < 0 || idx >= 2) return new Object[] {false, "Invalid index (1-2)"};
+		displays[idx].no_leading_zeroes = args.checkBoolean(1);
+		markDirty();
+		return new Object[] {true};
+	}
 }