Added documentation to updateTexture in GT_MetaTileEntity_Hatch.

Added a function to GT_Utility called addTexturePage(byte page).
Added information about who is using which texture page in GT_Block_Casings1.
Updated GT_Block_Casings5 & GT_Block_Casings8 to utilise texture page 1.
Updated Large Chemical Reactor to reflect this change, now also uses Page 1 Index 48.
Moved the Pyrolyse oven casing index from 111 to 22, which is currently unused and within the Gregtech index space.

2 files changed, 21 insertions, 0 deletions

diff --git a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch.java b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch.java
index 2c16ff73c9..d57aff8fc9 100644
--- a/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch.java
+++ b/src/main/java/gregtech/api/metatileentity/implementations/GT_MetaTileEntity_Hatch.java
@@ -76,6 +76,14 @@ public abstract class GT_MetaTileEntity_Hatch extends GT_MetaTileEntity_BasicTan
         mMachineBlock=actualTexture;
     }
 
+    /**
+     * 
+     * @param textureIndex
+     * Index between 0-127.
+     * Add 128 per page, if texture index is not on first page.
+     * 
+     */
+    
     public final void updateTexture(int textureIndex){
         onValueUpdate((byte) textureIndex);
         onTexturePageUpdate((byte) (textureIndex>>7));
diff --git a/src/main/java/gregtech/api/util/GT_Utility.java b/src/main/java/gregtech/api/util/GT_Utility.java
index 57a115973e..fa7d96d0d6 100644
--- a/src/main/java/gregtech/api/util/GT_Utility.java
+++ b/src/main/java/gregtech/api/util/GT_Utility.java
@@ -9,9 +9,11 @@ import gregtech.api.enchants.Enchantment_Radioactivity;
 import gregtech.api.enums.GT_Values;
 import gregtech.api.enums.ItemList;
 import gregtech.api.enums.SubTag;
+import gregtech.api.enums.Textures;
 import gregtech.api.events.BlockScanningEvent;
 import gregtech.api.interfaces.IDebugableBlock;
 import gregtech.api.interfaces.IProjectileItem;
+import gregtech.api.interfaces.ITexture;
 import gregtech.api.interfaces.tileentity.*;
 import gregtech.api.items.GT_EnergyArmor_Item;
 import gregtech.api.items.GT_Generic_Item;
@@ -1126,6 +1128,17 @@ public class GT_Utility {
     }
 
     /**
+     * Initializes a new texture page.
+     */
+    public static boolean addTexturePage(byte page){
+        if(Textures.BlockIcons.casingTexturePages[page]==null){
+            Textures.BlockIcons.casingTexturePages[page]=new ITexture[128];
+            return true;
+        }
+        return false;
+    }
+
+    /**
      * Converts a Number to a String
      */
     public static String parseNumberToString(int aNumber) {