Fixed trapdoors + few comments

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

@@ -166,7 +166,7 @@ public class BlockDoor extends Block {
                 if (!world.isStatic) {
                     this.b(world, i, j, k, i1, 0);
                 }
-            } else if (l > 0 && Block.byId[l].isPowerSource()) {
+            } else if (l > 0) {
                 // CraftBukkit start
                 org.bukkit.World bworld = world.getWorld();
                 org.bukkit.block.Block block = bworld.getBlockAt(i, j, k);

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

@@ -30,7 +30,7 @@ public class BlockTrapdoor extends Block {
     }
 
     public AxisAlignedBB e(World world, int i, int j, int k) {
-        this.a(world, i, j, k);
+        this.a((IBlockAccess)world, i, j, k); // CraftBukkit - Make sure this points to the below method!
         return super.e(world, i, j, k);
     }
 
@@ -121,14 +121,14 @@ public class BlockTrapdoor extends Block {
             }
 
             // CraftBukkit start
-            if (l > 0 && Block.byId[l] != null && Block.byId[l].isPowerSource()) {
+            if (l > 0) {
                 org.bukkit.World bworld = world.getWorld();
                 org.bukkit.block.Block block = bworld.getBlockAt(i, j, k);
 
                 int power = block.getBlockPower();
                 int oldPower = (world.getData(i, j, k) & 4) > 0 ? 15 : 0;
 
-                if (oldPower == 0 ^ power == 0) {
+                if (oldPower == 0 ^ power == 0 || (Block.byId[l] != null && Block.byId[l].isPowerSource())) {
                     BlockRedstoneEvent eventRedstone = new BlockRedstoneEvent(block, oldPower, power);
                     world.getServer().getPluginManager().callEvent(eventRedstone);
 

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

@@ -134,8 +134,8 @@ public abstract class EntityLiving extends Entity {
             this.ae();
         }
 
+        // CraftBukkit start - don't inline the damage, perform it with an event
         if (this.aj() && this.T()) {
-            // CraftBukkit start
             EntityDamageEvent event = new EntityDamageEvent(this.getBukkitEntity(), EntityDamageEvent.DamageCause.SUFFOCATION, 1);
             this.world.getServer().getPluginManager().callEvent(event);
 
@@ -225,7 +225,7 @@ public abstract class EntityLiving extends Entity {
         if (this.deathTicks == 20) {
             int i;
 
-            // CraftBukkit start - update getExpReward() below if the removed if() changes!
+            // CraftBukkit start - update getExpReward() above if the removed if() changes!
             i = expToDrop;
             while (i > 0) {
                 int j = EntityExperienceOrb.b(i);