Add on_move Entity Event for Scarpet (#1096)

* Add ON_MOVE Entity Event for Scarpet

* Update src/main/java/carpet/script/EntityEventsGroup.java

* Add on_move to Entities.md

* Switch to ValueConversions

* Update docs/scarpet/api/Entities.md

Co-authored-by: gnembon <41132274+gnembon@users.noreply.github.com>

* Fix #1126

* undo last commit cause it was on the wrong branch

Co-authored-by: gnembon <41132274+gnembon@users.noreply.github.com>

src/main/java/carpet/script/EntityEventsGroup.java

@@ -7,8 +7,10 @@ import carpet.script.value.FunctionValue;
 import carpet.script.value.NumericValue;
 import carpet.script.value.StringValue;
 import carpet.script.value.Value;
+import carpet.script.value.ValueConversions;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.damage.DamageSource;
+import net.minecraft.util.math.Vec3d;
 
 import java.util.Arrays;
 import java.util.Collections;
@@ -108,6 +110,19 @@ public class EntityEventsGroup
                 );
             }
         };
+        public static final Event ON_MOVE = new Event("on_move", 3)
+        {
+            @Override
+            public List<Value> makeArgs(Entity entity, Object... providedArgs)
+            {
+                return Arrays.asList(
+                        new EntityValue(entity),
+                        ValueConversions.of((Vec3d) providedArgs[0]),
+                        ValueConversions.of((Vec3d) providedArgs[1]),
+                        ValueConversions.of((Vec3d) providedArgs[2])
+                );
+            }
+        };
 
         public final int argcount;
         public final String id;