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- GENERAL
-
- Tetrix's playfield consists of a pit 20 blocks deep and 10 blocks wide. During
- play, objects fall from the top of the pit to the bottom. Each object is one of
- seven shapes, consisting of 4 contiguous blocks. As this object falls, it can
- be controlled by the player. It can be moved left, moved right, rotated
- (counter-clockwise), or dropped to the bottom of the pit. When an entire row of
- the pit is filled with blocks, then that row is removed, and all other blocks
- above it fall one row. When an object collides with the bottom of the pit, or
- with another object by downward motion, the object stops falling.
-
- The object of the game is to keep the pit from filling up. By moving and
- rotating the falling objects, the player attempts to fill in rows, which keeps
- the pit from being filled. For every 10 rows that are removed, the play level
- increases. As the level increases, the pieces fall faster and faster.
-
- SCORING
-
- You score is based on the level you are playing, and the speed with which each
- objects reaches bottom. When the object is in the desired position and
- orientation, you my drop the piece into place. This will score you more points
- than waiting for the piece to drop all the way to the bottom.
-
- STARTING TETRIX
-
- TETRIX EXPECTS THERE TO BE A LOGICAL DEVICE "Tetrix:" WHICH CORRESPONDS TO THE
- DIRECTORY WHERE TETRIX IS LOCATED. THIS CAN BE ACCOMPLISHED EASILY USING THE
- ASSIGN COMAMND.
-
- Tetrix can be invoked from the CLI or from the WorkBench. To invoke it from the
- CLI, simply type "Tetrix", followed by the <RETURN> key. To run it from the
- WorkBench, double-click on the Tetrix icon. There are several options that
- can be controlled from the command-line, or from the WorkBench ToolType.
- These are explained in the OPTIONS section.
-
- FOR EACH GAME...
-
- For each game, you can adjust the starting level (which will affect the speed
- objects fall, and the points scored for each object), and the difficulty. You
- can also elect to play a brand new game, or you can play the same game you just
- finished playing.
-
- Starting Level - The starting level can be any value from 0 (easy) to 9 (very
- difficult). If you wish to change the starting level, click inside the box,
- press BackSpace, and type the level you wish to start at.
-
- Difficulty - The difficulty level controls the starting playfield. It's value
- can be from 0 to 15. If you enter a value other than 0, then that many rows
- (starting at the bottom) may have some blocks randomly placed. This in effect,
- shortens the depth of the pit at the start of the game. If you wish to change
- the starting level, click inside the box, press BackSpace, and type the level
- you wish to start at.
-
- Starting The Game - There are two boxes labeled "Same Game" and "New Game". If
- you click in the New Game box, then a new game is started. If you click in the
- Same Game box, then the same random sequence used in the previous game is
- re-used for this one. This is handy if you and a friend want to play the same
- game and see who scores better. If you select the Same Game box for your first
- game, you'll be able to get the same game the next time you invoke Tetrix- this
- essentially takes all variation out. Note: if you select Same Game, but you
- have a different difficulty level selected, the game will not be the same.
-
- PLAYING THE GAME...
-
- Moving Objects - Objects are dropped from the top of the pit. The player uses
- keyboard commands to control the falling object.
-
- on the numeric keypad-
- 4: Move Left
- 5: Rotate Piece
- 6: Move Right
- 2: Increase Level
- Space: Drop Piece
-
- When you press the spacebar to drop the piece, the object falls at high speed as
- far as it can. Once an object can fall no further, a new one is released.
-
- Pausing Play - Press the P key to pause the game. Any keystroke will resume
- play. The game can also be paused by clicking outside of the pit. When you
- click inside the pit, the game will be resumed. Note: if the right mouse button
- is depressed to select a menu-item, the games is paused until the button is
- released.
-
- Stopping Play - Pressing the ESCape key or clicking on the pit's CLOSE gadget
- will end Tetrix.
-
- OPTIONS
-
- There are three options that can be switched while playing the game. They can
- also be preset during program invocation. SOUND can be turned on or off. The
- only sound is a simple beep when a row is removed. The Distribution of dropped
- objects can be shown, including the total number of objects. Also, the player
- can preview the next piece to be dropped.
-
- In addition to the runtime options, when the program is started, options can be
- set for default Starting Level, default Starting Difficulty, default Screen,
- and whether to show the TitleScreen.
-
- When a Tetrix is invoked from the CLI, options are specified on the command line.
- When invoked from the WorkBench, options are set in the INFO section of the icon.
-
- SCREEN:
- Normally, Tetrix uses its own 8-color screen. It can however be forced to use
- the WorkBench screen. To do this, either specify "-wb" on the CLI command, or
- "WORKBENCH=" in the ToolTypes entry.
-
- TITLESCREEN:
- When the 8-color screen is used, a neat animated TitleScreen is displayed. If you
- get tired of this, you can prevent it by specifying "-t" on the CLI command, or
- "NOTITLE=" in the ToolTypes entry.
-
- SOUND:
- Normally, sound is enabled. It can be disabled with the "-s" option on the CLI
- command, or the "SILENT=" options in the ToolTypes entry.
-
- PREVIEW:
- Specify "-n" or "NEXT=" to have the Show Next Piece option enabled.
-
- DISTRIBUTION:
- Specify "-d" or "DISTRIBUTION=" to have the Show Distribution option enabled.
-
- STARTING VALUES:
- When invoked from the CLI, default values for Starting Level and Starting
- Difficulty can be set by specifying -l# and -d#, where # is the value to set them
- at initially. (Example: Tetrix -l3 -d12) To set them from the WorkBench, the
- ToolTypes LEVEL=# and DIFFICULTY=# must be set.
-
-
- A NOTE FROM THE AUTHOR.
-
- As I am sure you know, the Amiga computer is the best buy for the money. But,
- no hardware is any better than its software. In writing Tetrix, I have
- attempted to follow all the rules for writing friendly Amiga software. I have
- tried to allow for different operating environments (such as interlace workbench
- screens). If I missed something, or if you think I have done something poorly
- in this respect, PLEASE let me know.
-
- David Corbin.
- Enjoy!
-