added silent, gravity, fire and age

cos i was bored, and I also checked it off for u

docs/scarpet/Full.md

@@ -2729,6 +2729,17 @@ Will make the entity constantly jump if set to true, and will stop the entity fr
 
 Will make the entity jump once only
 
+### `modify(e, 'silent', true/false)`
+
+### `modify(e, 'gravity', true/false)`
+
+### `modify(e, 'fire', ticks)`
+
+Will set mob on fire for `ticks` ticks. Set to 0 to extinguish.
+
+### `modify(e, 'age', age)`
+
+
 ## Entity Events
 
 There is a number of events that happen to entities that you can attach your own code to in the form of event handlers. 

docs/scarpet/api/Entities.md

@@ -464,7 +464,7 @@ Modifies gamemode of player to whatever string (case-insensitive) or number you
 * 2: adventure
 * 3: spectator
 
-### `modify(e, 'jumping', true/false?)`
+### `modify(e, 'jumping', true/false)`
 
 Will make the entity constantly jump if set to true, and will stop the entity from jumping if set to false.
 
@@ -472,6 +472,16 @@ Will make the entity constantly jump if set to true, and will stop the entity fr
 
 Will make the entity jump once only
 
+### `modify(e, 'silent', true/false)`
+
+### `modify(e, 'gravity', true/false)`
+
+### `modify(e, 'fire', ticks)`
+
+Will set mob on fire for `ticks` ticks. Set to 0 to extinguish.
+
+### `modify(e, 'age', age)`
+
 ## Entity Events
 
 There is a number of events that happen to entities that you can attach your own code to in the form of event handlers. 

src/main/java/carpet/script/value/EntityValue.java

@@ -912,21 +912,41 @@ public class EntityValue extends Value
             ((LivingEntity) e).setJumping(v.getBoolean());
         });
 
-        put("jump",(e,v)->{//Most *REDACTED* up code in the world
+        put("jump",(e,v)->{
             jump((LivingEntity)e);
         });
 
+        put("silent",(e,v)->{
+           e.setSilent(v.getBoolean());
+        });
+
+        put("gravity",(e,v)->{
+            e.setNoGravity(!v.getBoolean());
+        });
+
+        put("invulnerable",(e,v)->{
+            e.setInvulnerable(v.getBoolean());
+        });
+
+        put("fire",(e,v)->{
+            e.setFireTicks((int)NumericValue.asNumber(v).getLong());
+        });
+
+        put("age",(e,v)->{
+            e.age=(int)NumericValue.asNumber(v).getLong();
+        });
+
         // gamemode         [check]
         // spectate         [check]
-        // "fire"           []
+        // "fire"           [check]
-        // "extinguish"     []
+        // "extinguish"     [set fire ticks to 0]
-        // "silent"         []
+        // "silent"         [check]
-        // "gravity"        []
+        // "gravity"        [check]
-        // "invulnerable"   []
+        // "invulnerable"   [check]
         // "dimension"      []
         // "item"           []
         // "count",         []
-        // "age",           []
+        // "age",           [check]
         // "effect_"name    []
         // "hold"           [inventory_set?]
         // "hold_offhand"   [inventory_set?]