Add ghast api (#7554)

patches/api/0313-Missing-Entity-Behavior-API.patch

@@ -175,6 +175,49 @@ index 498e182846b81d50b3a594254e8b341fb23e8763..3826363a1954afcddaadec7f96ac1830
 +    public boolean isFaceplanted();
 +    // Paper end - Add more fox behavior API
  }
+diff --git a/src/main/java/org/bukkit/entity/Ghast.java b/src/main/java/org/bukkit/entity/Ghast.java
+index 3f5edf76ce303502cf4eeeb76f22f21f568dad5a..5930dc682c5c9273c748595e487b364b818a2fac 100644
+--- a/src/main/java/org/bukkit/entity/Ghast.java
++++ b/src/main/java/org/bukkit/entity/Ghast.java
+@@ -3,4 +3,37 @@ package org.bukkit.entity;
+ /**
+  * Represents a Ghast.
+  */
+-public interface Ghast extends Flying {}
++// Paper start
++public interface Ghast extends Flying {
++
++    /**
++     * Returns whether the ghast is charging an attack.
++     *
++     * @return whether the ghast is charging an attack
++     */
++    boolean isCharging();
++
++    /**
++     * Sets whether the ghast is charging an attack.
++     * This determines whether the client displays the charging animation.
++     *
++     * @param charging whether the ghast is charging an attack
++     */
++    void setCharging(boolean charging);
++
++    /**
++     * Returns the explosion power of shot fireballs.
++     *
++     * @return explosion power of shot fireballs
++     */
++    int getExplosionPower();
++
++    /**
++     * Sets the explosion power of shot fireballs.
++     *
++     * @param explosionPower explosion power of shot fireballs
++     * @throws IllegalArgumentException if the explosion power is less than 0 or greater than 127
++     */
++    void setExplosionPower(int explosionPower);
++    // Paper end
++}
 diff --git a/src/main/java/org/bukkit/entity/Panda.java b/src/main/java/org/bukkit/entity/Panda.java
 index a6a7429ed2e1eefb2b12b7480ed74fcc3963a864..1dcc2c8f4899da029af8b1c1b2ff1b5e368e82c1 100644
 --- a/src/main/java/org/bukkit/entity/Panda.java