Added MaxSpeed methods to minecarts. Added MaxSpeed methods to boats. Added SlowWhenEmpty, FlyingMod, and DerailedMod methods to minecarts.

src/main/java/net/minecraft/server/EntityBoat.java

@@ -27,6 +27,7 @@ public class EntityBoat extends Entity {
     private double ak;
     private double al;
     private double am;
+    public double maxSpeed = 0.4D; // CraftBukkit
 
     // CraftBukkit start
     public void c(Entity entity) {
@@ -219,7 +220,7 @@ public class EntityBoat extends Entity {
                 this.motZ += this.passenger.motZ * 0.2D;
             }
 
-            d4 = 0.4D;
+            d4 = this.maxSpeed; // CraftBukkit
             if (this.motX < -d4) {
                 this.motX = -d4;
             }

src/main/java/net/minecraft/server/EntityMinecart.java

@@ -31,13 +31,14 @@ public class EntityMinecart extends Entity implements IInventory {
     private double at;
 
     // CraftBukkit start
-    private boolean slowWhenEmpty = true;
+    public boolean slowWhenEmpty = true;
-    private double derailedX = 0.5;
+    public double derailedX = 0.5;
-    private double derailedY = 0.5;
+    public double derailedY = 0.5;
-    private double derailedZ = 0.5;
+    public double derailedZ = 0.5;
-    private double flyingX = 0.94999998807907104;
+    public double flyingX = 0.95;
-    private double flyingY = 0.94999998807907104;
+    public double flyingY = 0.95;
-    private double flyingZ = 0.94999998807907104;
+    public double flyingZ = 0.95;
+    public double maxSpeed = 0.4D;
 
     public ItemStack[] getContents() {
         return this.al;
@@ -224,7 +225,7 @@ public class EntityMinecart extends Entity implements IInventory {
                 --j;
             }
 
-            double d4 = 0.4D;
+            double d4 = this.maxSpeed; // CraftBukkit
             boolean flag = false;
 
             d0 = 0.0078125D;
@@ -326,7 +327,9 @@ public class EntityMinecart extends Entity implements IInventory {
                     this.a(this.locX, this.locY + (double) aint[1][1], this.locZ);
                 }
 
-                if (this.passenger != null) {
+                // CraftBukkit start
+                if (this.passenger != null || !slowWhenEmpty) {
+                // CraftBukkit end
                     this.motX *= 0.996999979019165D;
                     this.motY *= 0.0D;
                     this.motZ *= 0.996999979019165D;
@@ -412,16 +415,20 @@ public class EntityMinecart extends Entity implements IInventory {
                 }
 
                 if (this.onGround) {
-                    this.motX *= 0.5D;
+                    // CraftBukkit start
-                    this.motY *= 0.5D;
+                    this.motX *= this.derailedX;
-                    this.motZ *= 0.5D;
+                    this.motY *= this.derailedY;
+                    this.motZ *= this.derailedZ;
+                    // CraftBukkit start
                 }
 
                 this.c(this.motX, this.motY, this.motZ);
                 if (!this.onGround) {
-                    this.motX *= 0.949999988079071D;
+                    // CraftBukkit start
-                    this.motY *= 0.949999988079071D;
+                    this.motX *= flyingX;
-                    this.motZ *= 0.949999988079071D;
+                    this.motY *= flyingY;
+                    this.motZ *= flyingZ;
+                    // CraftBukkit start
                 }
             }
 

src/main/java/org/bukkit/craftbukkit/entity/CraftBoat.java

@@ -17,6 +17,16 @@ public class CraftBoat extends CraftVehicle implements Boat {
         boat = entity;
     }
 
+    public double getMaxSpeed() {
+        return boat.maxSpeed;
+    }
+
+    public void setMaxSpeed(double speed) {
+        if (speed >= 0D) {
+            boat.maxSpeed = speed;
+        }
+    }
+
     @Override
     public String toString() {
         return "CraftBoat";

src/main/java/org/bukkit/craftbukkit/entity/CraftMinecart.java

@@ -3,6 +3,7 @@ package org.bukkit.craftbukkit.entity;
 import net.minecraft.server.EntityMinecart;
 import org.bukkit.craftbukkit.CraftServer;
 import org.bukkit.entity.Minecart;
+import org.bukkit.util.Vector;
 
 /**
  * A minecart.
@@ -45,6 +46,44 @@ public class CraftMinecart extends CraftVehicle implements Minecart {
         return minecart.a;
     }
 
+    public double getMaxSpeed() {
+        return minecart.maxSpeed;
+    }
+
+    public void setMaxSpeed(double speed) {
+        if (speed >= 0D) {
+            minecart.maxSpeed = speed;
+        }
+    }
+
+    public boolean isSlowWhenEmpty() {
+        return minecart.slowWhenEmpty;
+    }
+
+    public void setSlowWhenEmpty(boolean slow) {
+        minecart.slowWhenEmpty = slow;
+    }
+
+    public Vector getFlyingVelocityMod() {
+        return new Vector(minecart.flyingX, minecart.flyingY, minecart.flyingZ);
+    }
+
+    public void setFlyingVelocityMod(Vector flying) {
+        minecart.flyingX = flying.getX();
+        minecart.flyingY = flying.getY();
+        minecart.flyingZ = flying.getZ();
+    }
+
+    public Vector getDerailedVelocityMod() {
+        return new Vector(minecart.derailedX, minecart.derailedY, minecart.derailedZ);
+    }
+
+    public void setDerailedVelocityMod(Vector derailed) {
+        minecart.derailedX = derailed.getX();
+        minecart.derailedY = derailed.getY();
+        minecart.derailedZ = derailed.getZ();
+    }
+
     @Override
     public String toString() {
         return "CraftMinecart";