GTModpackTeam · tier940 · Apr 6, 2026 · Apr 6, 2026 · Apr 6, 2026 · Apr 6, 2026
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,3 +1,10 @@
+# 2.7.6
+- Make MetaItem, MetaTileEntity, and Material IDs configurable via cfg
+  - Each category uses a configurable start ID; individual IDs are calculated as offsets
+  - Default values match the previous hardcoded values, so no impact on existing worlds
+
+* * *
+
 # 2.7.5
 - Re: Fix DEDA logic.
 

diff --git a/src/main/java/com/github/gtexpert/core/api/unification/material/GTEFirstDegreeMaterials.java b/src/main/java/com/github/gtexpert/core/api/unification/material/GTEFirstDegreeMaterials.java
@@ -11,22 +11,26 @@
 import gregtech.api.unification.material.Material;
 import gregtech.api.unification.material.properties.BlastProperty.GasTier;
 
+import com.github.gtexpert.core.common.GTEConfigHolder;
+
 public class GTEFirstDegreeMaterials {
 
     /**
-     * 24001 - 24100
+     * Default: 24001 - 24100
      */
     public static void init() {
-        // Artificial Bone 24001
-        ArtificialBone = new Material.Builder(24001, gteId("artificial_bone"))
+        int startId = GTEConfigHolder.startIDs.coreMaterial;
+
+        // Artificial Bone
+        ArtificialBone = new Material.Builder(startId, gteId("artificial_bone"))
                 .dust(1)
                 .color(0xFAFAFA)
                 .flags(FORCE_GENERATE_BLOCK, MORTAR_GRINDABLE, EXCLUDE_BLOCK_CRAFTING_BY_HAND_RECIPES)
                 .components(Calcium, 10, Phosphate, 6, Hydrogen, 2, Oxygen, 2)
                 .build();
 
         // NM_HEA_NPs
-        NM_HEA_NPs = new Material.Builder(24002, gteId("nm_hea_nps"))
+        NM_HEA_NPs = new Material.Builder(startId + 1, gteId("nm_hea_nps"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0xa90000).iconSet(METALLIC)
@@ -41,7 +45,7 @@ public static void init() {
                 .build();
 
         // Naquadah Rocket Fuel
-        NaquadahRocketFuel = new Material.Builder(24003, gteId("naquadah_rocket_fuel"))
+        NaquadahRocketFuel = new Material.Builder(startId + 2, gteId("naquadah_rocket_fuel"))
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x2E4C00)
                 .flags(NO_WORKING)

diff --git a/...com/github/gtexpert/core/api/unification/material/ingredients/AEFirstDegreeMaterials.java b/...com/github/gtexpert/core/api/unification/material/ingredients/AEFirstDegreeMaterials.java
@@ -14,18 +14,21 @@
 import gregtech.api.unification.ore.OrePrefix;
 
 import com.github.gtexpert.core.api.GTEValues;
+import com.github.gtexpert.core.integration.ae.AEConfigHolder;
 
 public class AEFirstDegreeMaterials {
 
     /**
-     * 24151 - 24175
+     * Default: 24151 - 24175
      */
     public static void init() {
+        int startId = AEConfigHolder.materialStartId;
+
         // Certus Quartz
         OrePrefix.block.modifyMaterialAmount(CertusQuartz, 4);
 
         // Charged Certus Quartz
-        ChargedCertusQuartz = new Material.Builder(24151, gteId("charged_certus_quartz"))
+        ChargedCertusQuartz = new Material.Builder(startId, gteId("charged_certus_quartz"))
                 .dust()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0xCFDAFF).iconSet(MaterialIconSet.CERTUS)
@@ -35,7 +38,7 @@ public static void init() {
         OrePrefix.block.modifyMaterialAmount(ChargedCertusQuartz, 4);
 
         // Fluix
-        Fluix = new Material.Builder(24152, gteId("fluix"))
+        Fluix = new Material.Builder(startId + 1, gteId("fluix"))
                 .dust()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x846994).iconSet(MaterialIconSet.CERTUS)
@@ -45,7 +48,7 @@ public static void init() {
         OrePrefix.block.modifyMaterialAmount(Fluix, 4);
 
         // Fluix Alloy
-        FluixAlloy = new Material.Builder(24153, gteId("fluix_alloy"))
+        FluixAlloy = new Material.Builder(startId + 2, gteId("fluix_alloy"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x4A3954).iconSet(MaterialIconSet.SHINY)

diff --git a/...thub/gtexpert/core/api/unification/material/ingredients/AvaritiaFirstDegreeMaterials.java b/...thub/gtexpert/core/api/unification/material/ingredients/AvaritiaFirstDegreeMaterials.java
@@ -12,17 +12,19 @@
 import gregtech.api.unification.material.properties.ToolProperty;
 
 import com.github.gtexpert.core.api.unification.material.info.GTEMaterialIconSet;
+import com.github.gtexpert.core.common.GTEConfigHolder;
 
 public class AvaritiaFirstDegreeMaterials {
 
     public static void init() {
+        int startId = GTEConfigHolder.startIDs.avaritiaMaterial;
         // Neutronium
         // Neutronium.setMaterialRGB(0x000000);
         // Neutronium.setMaterialIconSet(GTEMaterialIconSet.NEUTRONIUM);
         Neutronium.addFlags(GENERATE_SMALL_GEAR, GENERATE_FOIL, GENERATE_RING, GENERATE_ROTOR, NO_SMELTING);
 
         // Infinity
-        Infinity = new Material.Builder(24186, gteId("infinity"))
+        Infinity = new Material.Builder(startId, gteId("infinity"))
                 .dust(7).ingot(7)
                 .liquid(new FluidBuilder().temperature(10800))
                 .iconSet(GTEMaterialIconSet.INFINITY)

diff --git a/...com/github/gtexpert/core/api/unification/material/ingredients/DEFirstDegreeMaterials.java b/...com/github/gtexpert/core/api/unification/material/ingredients/DEFirstDegreeMaterials.java
@@ -17,31 +17,34 @@
 
 import com.github.gtexpert.core.api.GTEValues;
 import com.github.gtexpert.core.api.util.Mods;
+import com.github.gtexpert.core.integration.deda.DEDAConfigHolder;
 
 public class DEFirstDegreeMaterials {
 
     /**
-     * 24176 - 24200
+     * Default: 24176 - 24200
      */
     public static void init() {
+        int startId = DEDAConfigHolder.materialStartId;
+
         // Cryotheum
-        Cryotheum = new Material.Builder(24176, gteId("cryotheum"))
+        Cryotheum = new Material.Builder(startId, gteId("cryotheum"))
                 .liquid(new FluidBuilder().temperature(2))
                 .color(0x00B6FF).iconSet(MaterialIconSet.FLUID)
                 .flags(NO_WORKING, DISABLE_DECOMPOSITION)
                 .components(Electrotine, 1, EnderPearl, 1, Ice, 4)
                 .build();
 
         // Pyrotheum
-        Pyrotheum = new Material.Builder(24177, gteId("pyrotheum"))
+        Pyrotheum = new Material.Builder(startId + 1, gteId("pyrotheum"))
                 .fluid(GCYMFluidStorageKeys.MOLTEN, new FluidBuilder().temperature(10273))
                 .color(0xE42C13).iconSet(MaterialIconSet.BRIGHT)
                 .flags(NO_WORKING, DISABLE_DECOMPOSITION)
                 .components(Redstone, 1, Sulfur, 1, Blaze, 16)
                 .build();
 
         // Dragon Dust
-        Dragon = new Material.Builder(24178, gteId("dragon"))
+        Dragon = new Material.Builder(startId + 2, gteId("dragon"))
                 .dust()
                 .color(0x000000).iconSet(MaterialIconSet.ROUGH)
                 .flags(NO_WORKING, DISABLE_DECOMPOSITION)
@@ -51,7 +54,7 @@ public static void init() {
                 .build();
 
         // Draconium
-        Draconium = new Material.Builder(24180, gteId("draconium"))
+        Draconium = new Material.Builder(startId + 4, gteId("draconium"))
                 .ore(2, 1, true)
                 .ingot(5)
                 .liquid(new FluidBuilder().temperature(1200))
@@ -72,7 +75,7 @@ public static void init() {
                 .build();
 
         // Awakened Draconium
-        AwakenedDraconium = new Material.Builder(24181, gteId("awakened_draconium"))
+        AwakenedDraconium = new Material.Builder(startId + 5, gteId("awakened_draconium"))
                 .ingot(6)
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0xFF6C00).iconSet(MaterialIconSet.METALLIC)
@@ -90,7 +93,7 @@ public static void init() {
                 .build();
 
         // Chaos Dust
-        Chaos = new Material.Builder(24179, gteId("chaos"))
+        Chaos = new Material.Builder(startId + 3, gteId("chaos"))
                 .dust()
                 .color(0x000000).iconSet(MaterialIconSet.ROUGH)
                 .flags(NO_WORKING, DISABLE_DECOMPOSITION)

diff --git a/...om/github/gtexpert/core/api/unification/material/ingredients/EIOFirstDegreeMaterials.java b/...om/github/gtexpert/core/api/unification/material/ingredients/EIOFirstDegreeMaterials.java
@@ -12,29 +12,32 @@
 import gregtech.api.unification.material.properties.BlastProperty.GasTier;
 
 import com.github.gtexpert.core.api.GTEValues;
+import com.github.gtexpert.core.integration.eio.EnderIOConfigHolder;
 
 public class EIOFirstDegreeMaterials {
 
     /**
-     * 24101 - 24150
+     * Default: 24101 - 24150
      */
     public static void init() {
+        int startId = EnderIOConfigHolder.materialStartId;
+
         // Soulsand Dust
-        SoulSand = new Material.Builder(24101, gteId("soul_sand"))
+        SoulSand = new Material.Builder(startId, gteId("soul_sand"))
                 .dust()
                 .color(0x846C4C).iconSet(MaterialIconSet.SAND)
                 .flags(NO_WORKING)
                 .build();
 
         // Chorusfruit Dust
-        ChorusFruit = new Material.Builder(24102, gteId("chorus_fruit"))
+        ChorusFruit = new Material.Builder(startId + 1, gteId("chorus_fruit"))
                 .dust()
                 .color(0x8C648C).iconSet(MaterialIconSet.DULL)
                 .flags(NO_WORKING)
                 .build();
 
         // Electrical Steel
-        ElectricalSteel = new Material.Builder(24103, gteId("electrical_steel"))
+        ElectricalSteel = new Material.Builder(startId + 2, gteId("electrical_steel"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x949494).iconSet(MaterialIconSet.METALLIC)
@@ -47,7 +50,7 @@ public static void init() {
                 .build();
 
         // Energetic Alloy
-        EnergeticAlloy = new Material.Builder(24104, gteId("energetic_alloy"))
+        EnergeticAlloy = new Material.Builder(startId + 3, gteId("energetic_alloy"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0xED8009).iconSet(MaterialIconSet.SHINY)
@@ -61,7 +64,7 @@ public static void init() {
         EnergeticAlloy.setFormula("Au2(Si(FeS2)5(CrAl2O3)Hg3)2", true);
 
         // Vibrant Alloy
-        VibrantAlloy = new Material.Builder(24105, gteId("vibrant_alloy"))
+        VibrantAlloy = new Material.Builder(startId + 4, gteId("vibrant_alloy"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0xBAC63F).iconSet(MaterialIconSet.SHINY)
@@ -75,7 +78,7 @@ public static void init() {
         VibrantAlloy.setFormula("BeK4N5(Au2(Si(FeS2)5(CrAl2O3)Hg3)2)", true);
 
         // Redstone Alloy
-        RedstoneAlloy = new Material.Builder(24106, gteId("redstone_alloy"))
+        RedstoneAlloy = new Material.Builder(startId + 5, gteId("redstone_alloy"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x942323).iconSet(MaterialIconSet.DULL)
@@ -88,7 +91,7 @@ public static void init() {
                 .build();
 
         // Conductive Iron
-        ConductiveIron = new Material.Builder(24107, gteId("conductive_iron"))
+        ConductiveIron = new Material.Builder(startId + 6, gteId("conductive_iron"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0xD1A79B).iconSet(MaterialIconSet.ROUGH)
@@ -101,7 +104,7 @@ public static void init() {
                 .build();
 
         // Pulsating Iron
-        PulsatingIron = new Material.Builder(24108, gteId("pulsating_iron"))
+        PulsatingIron = new Material.Builder(startId + 7, gteId("pulsating_iron"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x6EAC7D).iconSet(MaterialIconSet.SHINY)
@@ -114,7 +117,7 @@ public static void init() {
                 .build();
 
         // Dark Steel
-        DarkSteel = new Material.Builder(24109, gteId("dark_steel"))
+        DarkSteel = new Material.Builder(startId + 8, gteId("dark_steel"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x5F5F5F).iconSet(MaterialIconSet.METALLIC)
@@ -127,7 +130,7 @@ public static void init() {
                 .build();
 
         // Soularium
-        Soularium = new Material.Builder(24110, gteId("soularium"))
+        Soularium = new Material.Builder(startId + 9, gteId("soularium"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x5A4226).iconSet(MaterialIconSet.DULL)
@@ -140,7 +143,7 @@ public static void init() {
                 .build();
 
         // End Steel
-        EndSteel = new Material.Builder(24111, gteId("end_steel"))
+        EndSteel = new Material.Builder(startId + 10, gteId("end_steel"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0xBCB682).iconSet(MaterialIconSet.METALLIC)
@@ -158,7 +161,7 @@ public static void init() {
                 true);
 
         // Iron Alloy
-        ConstructionAlloy = new Material.Builder(24112, gteId("construction_alloy"))
+        ConstructionAlloy = new Material.Builder(startId + 11, gteId("construction_alloy"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x524C53).iconSet(MaterialIconSet.ROUGH)
@@ -171,7 +174,7 @@ public static void init() {
                 .build();
 
         // Crystalline Alloy
-        CrystallineAlloy = new Material.Builder(24113, gteId("crystalline_alloy"))
+        CrystallineAlloy = new Material.Builder(startId + 12, gteId("crystalline_alloy"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x9FE4E4).iconSet(MaterialIconSet.SHINY)
@@ -184,7 +187,7 @@ public static void init() {
                 .build();
 
         // Melodic Alloy
-        MelodicAlloy = new Material.Builder(24114, gteId("melodic_alloy"))
+        MelodicAlloy = new Material.Builder(startId + 13, gteId("melodic_alloy"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0xA877A8).iconSet(MaterialIconSet.SHINY)
@@ -197,7 +200,7 @@ public static void init() {
                 .build();
 
         // Stellar Alloy
-        StellarAlloy = new Material.Builder(24115, gteId("stellar_alloy"))
+        StellarAlloy = new Material.Builder(startId + 14, gteId("stellar_alloy"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0xDBDECC).iconSet(MaterialIconSet.SHINY)
@@ -210,7 +213,7 @@ public static void init() {
                 .build();
 
         // Crystalline Pink Slime
-        CrystallinePinkSlime = new Material.Builder(24116, gteId("crystalline_pink_slime"))
+        CrystallinePinkSlime = new Material.Builder(startId + 15, gteId("crystalline_pink_slime"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0xE79EDB).iconSet(MaterialIconSet.SHINY)
@@ -223,7 +226,7 @@ public static void init() {
                 .build();
 
         // Energetic Silver
-        EnergeticSilver = new Material.Builder(24117, gteId("energetic_silver"))
+        EnergeticSilver = new Material.Builder(startId + 16, gteId("energetic_silver"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x598DB3).iconSet(MaterialIconSet.SHINY)
@@ -236,7 +239,7 @@ public static void init() {
                 .build();
 
         // Vivid Alloy
-        VividAlloy = new Material.Builder(24118, gteId("vivid_alloy"))
+        VividAlloy = new Material.Builder(startId + 17, gteId("vivid_alloy"))
                 .ingot()
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x469BB1).iconSet(MaterialIconSet.SHINY)

diff --git a/...com/github/gtexpert/core/api/unification/material/ingredients/TCFirstDegreeMaterials.java b/...com/github/gtexpert/core/api/unification/material/ingredients/TCFirstDegreeMaterials.java
@@ -10,14 +10,18 @@
 import gregtech.api.unification.material.Material;
 import gregtech.api.unification.material.info.MaterialIconSet;
 
+import com.github.gtexpert.core.integration.tc.TCConfigHolder;
+
 public class TCFirstDegreeMaterials {
 
     /**
-     * 24191 - 24199
+     * Default: 24191 - 24199
      */
     public static void init() {
+        int startId = TCConfigHolder.materialStartId;
+
         // Thaumium
-        Thaumium = new Material.Builder(24191, gteId("thaumium"))
+        Thaumium = new Material.Builder(startId, gteId("thaumium"))
                 .dust(3).ingot(3)
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x9664c8).iconSet(MaterialIconSet.METALLIC)
@@ -29,7 +33,7 @@ public static void init() {
                 .build();
 
         // Void Metal
-        VoidMetal = new Material.Builder(24192, gteId("void_metal"))
+        VoidMetal = new Material.Builder(startId + 1, gteId("void_metal"))
                 .dust(4).ingot(4)
                 .liquid(new FluidBuilder().temperature(1200))
                 .color(0x1c0639).iconSet(MaterialIconSet.SHINY)