feat(render): implementation-free api texture factory

Provides an implementation-free API Texture factory an builder.
Deprecates gregtech.api.objects.GT_*Texture.java classes

Once all GregTech add-on will be migrated to the new implemnetation-free API,
changes to the implementation will not affect the add-on.

For now, this API allow rendering of in-world glow textures.
In-inventory/hand rendering of glow texture require implementation changes
that are postponed until no add-on uses the deprecated embedded implementation API.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/main/java/gregtech/api/interfaces/ITexture.java b/src/main/java/gregtech/api/interfaces/ITexture.java
index 61244a10ae..4c0b1984ca 100644
--- a/src/main/java/gregtech/api/interfaces/ITexture.java
+++ b/src/main/java/gregtech/api/interfaces/ITexture.java
@@ -20,6 +20,13 @@ public interface ITexture {
     boolean isValidTexture();
 
     /**
+     * @return {@code true} if this texture is from the old package
+     */
+    default boolean isOldTexture() {
+        return getClass().toString().startsWith("gregtech.api.objects");
+    }
+
+    /**
      * Will initialize the {@link Tessellator} if rendering off-world (Inventory)
      * @param aRenderer The {@link RenderBlocks} Renderer
      * @param aNormalX The X Normal for current Quad Face