Update, config does not work correctly.

src/thaumcraft/api/IAspectSource.java

@@ -0,0 +1,63 @@
+package thaumcraft.api;
+
+
+/**
+ * @author Azanor
+ * 
+ * This interface is implemented by tile entites (or possibly anything else) like jars, alembics and the 
+ * crucible so that they can act as an essentia source for blocks like the infusion altar.
+ *
+ */
+public interface IAspectSource {
+	
+	/**
+	 * This method is used to add a certain amount of an aspect to the tile entity.
+	 * @param tag 
+	 * @param amount
+	 * @return the amount of aspect left over that could not be added.
+	 */
+	public int addToSource(EnumTag tag, int amount);
+
+	/**
+	 * Removes a certain amount of a specific aspect from the tile entity
+	 * @param tag
+	 * @param amount
+	 * @return true if that amount of aspect was available and was removed
+	 */
+	public boolean takeFromSource(EnumTag tag, int amount);
+	
+	/**
+	 * removes a bunch of different aspects and amounts from the tile entity.
+	 * @param ot the ObjectTags object that contains the aspects and their amounts.
+	 * @return true if all the aspects and their amounts were available and successfully removed
+	 */
+	public boolean takeFromSource(ObjectTags ot);
+	
+	/**
+	 * Checks if the tile entity contains the listed amount (or more) of the aspect
+	 * @param tag
+	 * @param amount
+	 * @return
+	 */
+	public boolean doesSourceContainAmount(EnumTag tag,int amount);
+	
+	/**
+	 * Checks if the tile entity contains all the listed aspects and their amounts
+	 * @param ot the ObjectTags object that contains the aspects and their amounts.
+	 * @return
+	 */
+	public boolean doesSourceContain(ObjectTags ot);
+	
+	/**
+	 * Returns how much of the aspect this tile entity contains
+	 * @param tag
+	 * @return the amount of that aspect found
+	 */
+	public int sourceContains(EnumTag tag);
+	
+	/**
+	 * Returns all the aspects and their amounts that this tile entity contains
+	 * @return
+	 */
+	public ObjectTags getSourceTags();
+}