🖥 Mesmerizing Swirly Thing

This program is a port and mod of a program by Cory Smith.

The mods:

• addition of animation
• color transitions 
• code refactoring to accommodate my needs

An animated program that swirls a circular area in the  middle of the screen.

The swirl goes one direction and then unswirls and swirls the opposite direction.

Back and forth.  Transitioning from a color at the end of a swirl to another color at the end of the opposite swirl.

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🖥🕹 VFG

VFG = Vince's Favorite Game

Update: I found out later from Vince that the game is called "Pentris", "as in the next order of Polyomino after tetris.".

This puzzle game is a port, mod, and code-refactoring of Vince's QBJS program.

Although designed to work with a physical keyboard, it should also work on touch-screen devices (I've only tested with the mouse on my laptop.)

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• View the source code

💡 FYI

Like all exported BAM programs shared with "Run the program" links, you can save the HTML page locally to run the program in your browser when off-line !  (It is a single-HTML-page browser application with no dependencies on anything!)

Game controls

Left and Right keys on the keyboard or L and R buttons on the screen

These move the dropping puzzle pieces to the left and to the right.

Up key on the keyboard or U button on the screen

This rotates the dropping puzzle piece counter-clockwise (as long as there is room on the left/right side of the puzzle piece (i.e. not obstructed by the left/right side of the screen or by another puzzle piece.

Space key on the keyboard or S button on the screen

This immediately drops the puzzle piece to the lowest position it can validly go.

P key on the keyboard or click/touch the puzzle area

This pauses the game until a key is pressed or a button is touched/clicked.

🖥 3D Boxes in Wavy Columns

A QB64 / QBJS program by Vince that I've ported to BAM and modded a little.

I've increased the number of columns from 2 to 6, added some colour, and changed the dimensions of the screen a little.

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• View the source code
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🖥 DRAW Rotating Lace Pattern

This started out as an attempt to figure out how to rotate a shape at a fixed point.  I decided to just draw a simple rectangle to rotated it around its center.  One thing led to another, and this is what I got:

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🖥 Rotating Concentric Squares

Having a little fun with the DRAW statement and a fair bit of randomness in every drawing cycle.

• either draw from the middle of the screen outward, or draw from the edge of the screen inward
• random (but fixed) increase/decrease of square sizes
• random (but fixed) increments in angles for each square
• random color choice

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🖥 Color-Changing Xmas Tree

This BAM port and mod based a one-liner Applesoft program by Ed Solie.

I've:

• increased the size of the image and changed the dimensions of the canvas
• animated the drawing process
• setup the drawing process to use a random color for every drawing iteration
• setup the first iteration to draw the whole "tree"
• setup all subsequent iterations to draw a new random color from a random starting point to a random end point
• setup the star to redraw on every iteration with the new random color

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🖥 String Art In A Rectangle

This BAM program is a port and mod of a BBC Micro program by Stephen Fewell.

Stephen Fewell's program is a port and mod of an Applesoft program by Ed Solie.

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