okthen

src/main/java/li/cil/oc/api/API.java

@@ -11,7 +11,7 @@ import li.cil.oc.api.detail.*;
  */
 public class API {
     public static final String ID_OWNER = "OpenComputers|Core";
-    public static final String VERSION = "4.1.2";
+    public static final String VERSION = "4.1.3";
 
     public static DriverAPI driver = null;
     public static FileSystemAPI fileSystem = null;

src/main/java/li/cil/oc/api/internal/Drone.java

@@ -2,7 +2,6 @@ package li.cil.oc.api.internal;
 
 import li.cil.oc.api.driver.EnvironmentHost;
 import li.cil.oc.api.machine.Machine;
-import li.cil.oc.api.network.Environment;
 import net.minecraft.inventory.IInventory;
 import net.minecraft.util.Vec3;
 
@@ -43,4 +42,13 @@ public interface Drone extends EnvironmentHost, Rotatable {
      * accumulate.
      */
     void setTarget(Vec3 value);
+
+    /**
+     * Get the drones velocity vector.
+     * <p/>
+     * Note that this is really just the underlying entity's <tt>motionX/Y/Z</tt>,
+     * so you can cast this to {@link net.minecraft.entity.Entity} and use that
+     * instead, if you'd like.
+     */
+    Vec3 getVelocity();
 }

src/main/scala/li/cil/oc/common/entity/Drone.scala

@@ -123,6 +123,8 @@ class Drone(val world: World) extends Entity(world) with MachineHost with intern
     targetZ = value.zCoord.toFloat
   }
 
+  override def getVelocity = Vec3.createVectorHelper(motionX, motionY, motionZ)
+
   // ----------------------------------------------------------------------- //
 
   override def canBeCollidedWith = true