Added the concept of an Explosive.

By: sunkid <sunkid@iminurnetz.com>

paper-api/src/main/java/org/bukkit/entity/TNTPrimed.java

@@ -1,12 +1,18 @@
-/**
- *
- */
 package org.bukkit.entity;
 
 /**
  * Represents a Primed TNT.
- *
- * @author Cogito
- *
  */
-public interface TNTPrimed extends Entity {}
+public interface TNTPrimed extends Explosive {
+    /**
+     * Set the number of ticks until the TNT blows up after being primed.
+     * @param fuseTicks
+     */
+    public void setFuseTicks(int fuseTicks);
+
+    /**
+     * Retrieve the number of ticks until the explosion of this TNTPrimed entity
+     * @return the number of ticks until this TNTPrimed explodes
+     */
+    public int getFuseTicks();
+}