Added minecart classes, vehicle class, and the ability to spawn minecarts. StorageMinecart needs a getInventory(), but that is waiting on the addition of inventory code.

By: sk89q <the.sk89q@gmail.com>

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

@@ -0,0 +1,22 @@
+package org.bukkit;
+
+/**
+ * Represents a minecart entity.
+ * 
+ * @author sk89q
+ */
+public interface Minecart extends Vehicle {
+    /**
+     * Sets a minecart's damage.
+     * 
+     * @param damage over 40 to "kill" a minecart
+     */
+    public void setDamage(int damage);
+    
+    /**
+     * Gets a minecart's damage.
+     * 
+     * @param damage
+     */
+    public int getDamage();
+}

paper-api/src/main/java/org/bukkit/PoweredMinecart.java

@@ -0,0 +1,10 @@
+package org.bukkit;
+
+/**
+ * Represents a powered minecart.
+ * 
+ * @author sk89q
+ */
+public interface PoweredMinecart extends Minecart {
+
+}

paper-api/src/main/java/org/bukkit/StorageMinecart.java

@@ -0,0 +1,9 @@
+package org.bukkit;
+
+/**
+ * Represents a storage minecart.
+ * 
+ * @author sk89q
+ */
+public interface StorageMinecart extends Minecart {
+}

paper-api/src/main/java/org/bukkit/Vehicle.java

@@ -0,0 +1,37 @@
+package org.bukkit;
+
+/**
+ * Represents a vehicle entity.
+ * 
+ * @author sk89q
+ */
+public interface Vehicle extends Entity {
+    /**
+     * Gets the vehicle's velocity.
+     * 
+     * @return velocity vector
+     */
+    public Vector getVelocity();
+    
+    /**
+     * Sets the vehicle's velocity.
+     * 
+     * @param vel velocity vector
+     */
+    public void setVelocity(Vector vel);
+    
+    /**
+     * Gets the primary passenger of a vehicle. For vehicles that could have
+     * multiple passengers, this will only return the primary passenger.
+     * 
+     * @return a living entity
+     */
+    public LivingEntity getPassenger();
+    
+    /**
+     * Returns true if the vehicle has no passengers.
+     * 
+     * @return
+     */
+    public boolean isEmpty();
+}

paper-api/src/main/java/org/bukkit/World.java

@@ -71,4 +71,28 @@ public interface World {
      * @return whether the tree was created
      */
     public boolean generateBigTree(Location loc);
+
+    /**
+     * Spawns a regular passenger minecart.
+     * 
+     * @param loc
+     * @return
+     */
+    public Minecart spawnMinecart(Location loc);
+
+    /**
+     * Spawns a storage minecart.
+     * 
+     * @param loc
+     * @return
+     */
+    public StorageMinecart spawnStorageMinecart(Location loc);
+
+    /**
+     * Spawns a powered minecart.
+     * 
+     * @param loc
+     * @return
+     */
+    public PoweredMinecart spawnPoweredMinecart(Location loc);
 }