Add Player Collision API. Thanks to @lazertester and @mrapple for the implementation.

Bukkit-Patches/0016-Player-Collision-API.patch

@@ -0,0 +1,41 @@
+From 36b0eed14a6230d0e47ac5484186ce568ae60490 Mon Sep 17 00:00:00 2001
+From: md_5 <md_5@live.com.au>
+Date: Sat, 3 Aug 2013 19:20:50 +1000
+Subject: [PATCH] Player Collision API
+
+
+diff --git a/src/main/java/org/bukkit/entity/Player.java b/src/main/java/org/bukkit/entity/Player.java
+index a809f18..fb21501 100644
+--- a/src/main/java/org/bukkit/entity/Player.java
++++ b/src/main/java/org/bukkit/entity/Player.java
+@@ -725,6 +725,27 @@ public interface Player extends HumanEntity, Conversable, CommandSender, Offline
+         {
+             throw new UnsupportedOperationException( "Not supported yet." );
+         }
++
++        /**
++         * Gets whether the player collides with entities
++         *
++         * @return the player's collision toggle state
++         */
++        public boolean getCollidesWithEntities()
++        {
++            throw new UnsupportedOperationException( "Not supported yet." );
++        }
++
++        /**
++         * Sets whether the player collides with entities
++         *
++         * @param collides whether the player should collide with entities or
++         * not.
++         */
++        public void setCollidesWithEntities(boolean collides)
++        {
++            throw new UnsupportedOperationException( "Not supported yet." );
++        }
+     }
+ 
+     Spigot spigot();
+-- 
+1.8.1.2
+

CraftBukkit-Patches/0024-Player-Collision-API.patch

@@ -0,0 +1,84 @@
+From 1bd195c36f5a4405afa8667244b0b0d871de5d10 Mon Sep 17 00:00:00 2001
+From: md_5 <md_5@live.com.au>
+Date: Sat, 3 Aug 2013 19:27:07 +1000
+Subject: [PATCH] Player Collision API
+
+
+diff --git a/src/main/java/net/minecraft/server/EntityHuman.java b/src/main/java/net/minecraft/server/EntityHuman.java
+index e1a3ca1..6770e04 100644
+--- a/src/main/java/net/minecraft/server/EntityHuman.java
++++ b/src/main/java/net/minecraft/server/EntityHuman.java
+@@ -410,7 +410,7 @@ public abstract class EntityHuman extends EntityLiving implements ICommandListen
+ 
+             List list = this.world.getEntities(this, axisalignedbb);
+ 
+-            if (list != null) {
++            if (list != null && this.L()) { // Spigot: Add this.L() condition
+                 for (int i = 0; i < list.size(); ++i) {
+                     Entity entity = (Entity) list.get(i);
+ 
+diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
+index 6b8b8dd..34683a5 100644
+--- a/src/main/java/net/minecraft/server/EntityLiving.java
++++ b/src/main/java/net/minecraft/server/EntityLiving.java
+@@ -1462,7 +1462,7 @@ public abstract class EntityLiving extends Entity {
+     protected void bi() {
+         List list = this.world.getEntities(this, this.boundingBox.grow(0.20000000298023224D, 0.0D, 0.20000000298023224D));
+ 
+-        if (list != null && !list.isEmpty()) {
++        if (this.L() && list != null && !list.isEmpty()) { // Spigot: Add this.L() condition
+             for (int i = 0; i < list.size(); ++i) {
+                 Entity entity = (Entity) list.get(i);
+ 
+diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
+index 58e5217..6d2e765 100644
+--- a/src/main/java/net/minecraft/server/EntityPlayer.java
++++ b/src/main/java/net/minecraft/server/EntityPlayer.java
+@@ -53,6 +53,21 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
+     public boolean keepLevel = false;
+     public double maxHealthCache;
+     // CraftBukkit end
++    // Spigot start
++    public boolean collidesWithEntities = true;
++
++    @Override
++    public boolean L()
++    {
++        return this.collidesWithEntities && super.L();
++    }
++
++    @Override
++    public boolean K()
++    {
++        return this.collidesWithEntities && super.K();
++    }
++    // Spigot end
+ 
+     public EntityPlayer(MinecraftServer minecraftserver, World world, String s, PlayerInteractManager playerinteractmanager) {
+         super(world, s);
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+index 6e9834f..b858b3d 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+@@ -1077,6 +1077,18 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
+     // Spigot start
+     private final Spigot spigot = new Spigot()
+     {
++        @Override
++        public boolean getCollidesWithEntities()
++        {
++            return getHandle().collidesWithEntities;
++        }
++
++        @Override
++        public void setCollidesWithEntities(boolean collides)
++        {
++            getHandle().collidesWithEntities = collides;
++            getHandle().m = collides; // First boolean of Entity
++        }
+     };
+ 
+     public Spigot spigot()
+-- 
+1.8.1.2
+