Game Development Tutorial

Uhm, I admit – I lost a whole day to figure this stupid stuff out. And in the end, i ended up with just a few lines of code. It's true that simplicity is the best way. And after writing, like, fifty lines of code that didn't work, i decided to delete it, and to start over. Basically, I took every single block in the game, and checked if it's floating. If it was, I moved it down… This would be the result:

This is the code that goes in the GoGravity() method:

// So, bassicaly, i just use 
// a couple of loops to go trough 
// all the fields.

// Looping through columns:
for (int s = 0; s < iWidth; s++)
{
  // Looping through rows:
  for (int l = 0; l < iHeight; l++)
  {
    for (int v = iHeight - 1; v > 0; v--)
    {
      // In every column, I start  
      // checking from the bottom.
      if (Field[v, s] == 0)
      {
        // If the field is empty, I  
        // drop the field above it 
        // down one block.
        Field[v, s] = Field[v - 1, s];
        Field[v - 1, s] = 0;
      }
    }
  }
}
// And to show the changes, 
// I call the Redraw() method:
Redraw();

And this is the code that goes into the Redraw() method:

//Drawing our field and grid:
DrawGrid()
DrawField()