Many javadoc fixes thanks to Celtic Minstrel

By: Dinnerbone <dinnerbone@dinnerbone.com>

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

@@ -19,34 +19,35 @@ public interface Minecart extends Vehicle {
     /**
      * Gets a minecart's damage.
      *
-     * @param damage
+     * @return The damage
      */
     public int getDamage();
 
     /**
      * Gets the maximum speed of a minecart. The speed is unrelated to the velocity.
-     *
-     * @param speed
+     * 
+     * @return The max speed
      */
     public double getMaxSpeed();
 
     /**
      * Sets the maximum speed of a minecart. Must be nonnegative. Default is 0.4D.
      *
-     * @param speed
+     * @param speed The max speed
      */
     public void setMaxSpeed(double speed);
 
     /**
      * Returns whether this minecart will slow down faster without a passenger occupying it
      *
+     * @return Whether it decelerates faster
      */
     public boolean isSlowWhenEmpty();
 
     /**
      * Sets whether this minecart will slow down faster without a passenger occupying it
      *
-     * @param slow
+     * @param slow Whether it will decelerate faster
      */
     public void setSlowWhenEmpty(boolean slow);
 
@@ -54,7 +55,7 @@ public interface Minecart extends Vehicle {
      * Gets the flying velocity modifier. Used for minecarts that are in mid-air.
      * A flying minecart's velocity is multiplied by this factor each tick.
      *
-     * @param flying velocity modifier
+     * @return The vector factor
      */
     public Vector getFlyingVelocityMod();
 
@@ -62,7 +63,7 @@ public interface Minecart extends Vehicle {
      * Sets the flying velocity modifier. Used for minecarts that are in mid-air.
      * A flying minecart's velocity is multiplied by this factor each tick.
      *
-     * @param flying velocity modifier
+     * @param flying velocity modifier vector
      */
     public void setFlyingVelocityMod(Vector flying);
 
@@ -70,7 +71,7 @@ public interface Minecart extends Vehicle {
      * Gets the derailed velocity modifier. Used for minecarts that are on the ground, but not on rails.
      *
      * A derailed minecart's velocity is multiplied by this factor each tick.
-     * @param visible speed
+     * @return derailed visible speed
      */
     public Vector getDerailedVelocityMod();
 
@@ -78,7 +79,7 @@ public interface Minecart extends Vehicle {
      * Sets the derailed velocity modifier. Used for minecarts that are on the ground, but not on rails.
      * A derailed minecart's velocity is multiplied by this factor each tick.
      *
-     * @param visible speed
+     * @param derailed visible speed
      */
     public void setDerailedVelocityMod(Vector derailed);
 }