// Probably important: Im using Vector's as Point's and vice-versa.
class Vector
{
 float x,y,z;
 
 -snippedTheRestOfTheClass-
}

class Plane
{
 float d;
 Vector position;
 Vector normal;
 
 -snippedTheRestOfTheClass-
}

         GL11.glEnable(GL11.GL_BLEND);
         GL11.glBlendFunc(GL11.GL_SRC_ALPHA,GL11.GL_ONE_MINUS_SRC_ALPHA);
         GL11.glAlphaFunc(GL11.GL_GREATER, (float) 0.1);

List<?> visibleChunks = ???;
Collections.sort(visibleChunks,frontBackDistanceSort);

for(int n = 0; n < visibleChunks.size(); n++)
    visibleChunks.get(n).renderCall(OPAQUE);
for(int n = visibleChunks.size()-1; n >= 0; n--)
    visibleChunks.get(n).renderCall(TRANSPARENT);

class Block {
 boolean isVisible;
}
class BlockGrass extends Block{
 int GrassType;
}

class Chunk{
 Block[][][] contents;
}

class Chunk{
 int[] blockData;
}

class Block{
 abstract void onRightClick(World world,int x,int y,int z);
 abstract void onNeighborBlockChange(World world,int x,int y,int z);
}

class Button{
 void onRightClick(World world,int x,int y,int z){
  world.setBlockID(x,y,z,BID_BUTTON_ON);
 }
 void onNeighborBlockChange(World world,int x,int y,int z){
  if(checkIfButtonCanStayHere(world,x,y,z)){
    dropBlockAsItem(world,x,y,z);
  }
 }
}

C: Create Socket and try to connect to Server
S: Accepts Connection
C >> S: Sends Login Request Packet
S: Checks if the login is valid (Player isn ot already there/Server is not full, etc.etc.)
Not-Accepted: Send ConnectionKill Packet to Client and Stop.
Accepted{
 S >> C: Send Asset-Count and Assets //NYI
 C: Receive Assets and use them //NYI
 C >> S: Send the Asset Packet back
 C: Create local World Instance
 C: Go into infinite Packet reading loop
 S: Start a new Thread and go into an infinite Packet reading loop
 S >> C: Send Spawn-Area Chunks
 
 // LOOP START
 C: Read every Packet and execute it using the assigned Handler
 S: Read every Packet and execute it using the assigned Handler
}

i = Block Identifier
l = SkyLight
b = BlockLight

Binary: iiiiiiiiiiiiiiiibbbbllll
Hexadecimal: iiiibl

glRotatef(rY-90f, 0.0f, 1.0f, 0.0f);
glTranslatef(x+.3f, y-0.3f, z-0.3f);
glRotatef(rX, 1.0f, 0.0f, 0.0f);

// Label your 4 Vertices from A-D
A GL11.glTexCoord2f(spriteX, spriteY + small);           GL11.glVertex3f(x1, y1 + height, z1);
B GL11.glTexCoord2f(spriteX, spriteY);                     GL11.glVertex3f(x1, y1 + height, z1 + length);
C GL11.glTexCoord2f(spriteX + small, spriteY);           GL11.glVertex3f(x1 + width, y1 + height, z1 + length);
D GL11.glTexCoord2f(spriteX + small, spriteY + small); GL11.glVertex3f(x1 + width, y1 + height, z1);

// Triangle A
A GL11.glTexCoord2f(spriteX, spriteY + small);           GL11.glVertex3f(x1, y1 + height, z1);
B GL11.glTexCoord2f(spriteX, spriteY);                     GL11.glVertex3f(x1, y1 + height, z1 + length);
C GL11.glTexCoord2f(spriteX + small, spriteY);           GL11.glVertex3f(x1 + width, y1 + height, z1 + length);

// Triangle B
A GL11.glTexCoord2f(spriteX, spriteY + small);           GL11.glVertex3f(x1, y1 + height, z1);
C GL11.glTexCoord2f(spriteX + small, spriteY);           GL11.glVertex3f(x1 + width, y1 + height, z1 + length);
D GL11.glTexCoord2f(spriteX + small, spriteY + small); GL11.glVertex3f(x1 + width, y1 + height, z1);

boolean bool = (System.nanoTime() & 0b1) == 0;

1. Not take credit for it, and give proper recognition to the authors.