tritris

TRITRIS Program

This is a implementation of tetris with 3 block pieces.

To know the horizontal and vertical coordinates of a cell subtract 16 from the memory location until it's below 16. The number you got its the x coordinates and the number of times you substrated 16 its the y coordenates. The formulae to convert between memory location and coordinates is:

Cell = (X - 1) + (Y - 1)*16

Variables

• A: Vertical coordinate for block 1

• B: Horizontal coordinate for block 1

• E: Vertical coordinate for block 2

• F: Horizontal coordinate for block 2

• G: Vertical coordinate for block 3

• H: Horizontal coordinate for block 3

• C: Piece

• D: Points

• I: Key pressed

• K: Flag for ignoring input to move the piece faster

• X, Y: Loop variables

• Z: Number of cells

• Z[]: Cells

Gotos

• 0: Get block positions for the piece
• 1: Key handler
• 2: Checks if the piece has reached the bottom or collided with another piece. If yes it saves the blocks to memory and deletes a line if its full.
• 3: Ends the program

Pieces

Piece 1

 0
 0
 0

Can change to piece 2

Piece 2

 000

Can change to piece 1

Piece 3

 0
 00

Can change to piece 5

Piece 4

 00
 0

Can change to piece 6

Piece 5

  0
 00

Can change to piece 3

Piece 6

 00
  0

Can change to piece 4