no more magical texture index (#1249)

* no more magical texture index

* add a reverse map for fxxk sake

1 files changed, 15 insertions, 0 deletions

diff --git a/src/main/java/gregtech/api/interfaces/IHasIndexedTexture.java b/src/main/java/gregtech/api/interfaces/IHasIndexedTexture.java
new file mode 100644
index 0000000000..7401d35323
--- /dev/null
+++ b/src/main/java/gregtech/api/interfaces/IHasIndexedTexture.java
@@ -0,0 +1,15 @@
+package gregtech.api.interfaces;
+
+/**
+ * To be implemented on blocks. Usually machine casing blocks.
+ */
+public interface IHasIndexedTexture {
+    /**
+     * Returns the statically mapped texture for this casing. Return
+     * {@link gregtech.api.enums.Textures.BlockIcons#ERROR_TEXTURE_INDEX} if meta maps to a nonexistent block, or the
+     * block does not have a statically mapped texture.
+     * @param aMeta block meta
+     * @return texture index into {@link gregtech.api.enums.Textures.BlockIcons#casingTexturePages}
+     */
+    int getTextureIndex(int aMeta);
+}