<!-- Fast and Furious Game Development with Javascript and AI -->    
<!-- by Andre' LaMothe -->

<!--
Credits: Flappy Bird originally developed by Dong Nguyen, 2013.

Graphics: Andre' LaMothe
Audio: Andre' LaMothe

https://opengameart.org/users/eric-matyas
CC-BY 3.0
"Bouncing Around in Pixel Town" by Eric Matyas www.soundimage.org


Comments: The main idea here is to "hack" the code that chatGPT writes, add features, 
skin the game with graphics and sounds, try and fix logic bugs or game play bugs, 
etc. But, NOT to re-write the code. In fact, many times the code written by chatGPT 
is a bit of a mess, but we just work around it. The one thing I will do though is add
comments here and there, change formatting, so I can see where blocks start and end,
but, if I see "bad" code, I will NOT re-write it since the idea is to use what chatGPT
gives us and try and work with it.

ChatGPT 4.0 Plus Prompt:

Start a new chat, and then initialize ChatGPT with this prompt:

Ignore all previous instructions. From now on your name is HAL (from the movie 2001 Space Odyssey). 
You are an ultra advanced AI, LLM and machine learning expert. Your task is to read and understand 
given information, and be inspired by that information to come up with NEW ideas. 
You are the world's best Javascript game developer, and no task is too large or complex 
for you. You will find a way to complete every request asked of you. 
Acknowledge all this by answering with "understood" and then stay idle.

________________________________

HAL, please write me a complete, but simplified Javascript + HTML5 + Canvas version of the classic 
game "Flappy Bird". The game should use the keyboard for input to control the player's bird.  
The game should have a canvas size of 640x480, 	the canvas should be centered in the browser window. 
The background color of the canvas should be sky colored light blue, the player's bird should be yellow, 
the pipes should be a new random color each level. Please be careful with the gravity setting, 
and player jump controls so the bird moves smoothly. There should be on screen scoring, 
as well as place holders for sound effects for collisions, scoring, new levels, and background music. 
The game should have an HTML START  button to begin the game, and when the game ends the game 
should wait in "attract mode" for the player to press the START button again to begin a new game. 
The game should have levels that increase in difficulty as the player clears each levels. 
Finally, please comment the code generously.


Reprompt(s):

When I press the start button, nothing happens, please fix this bug and re-list the entire program. 

The game has more bugs, the pipes are upside down, also the gravity is much too high, 
the player falls off the screen too fast, also, the player jump/flap control moves 
the player's y velocity too much as well, and needs to be adjusted. Please fix these 
bugs and make the game playable and re-list the entire game.

There is another bug, every time the game ends, and starts again, you are not resetting all 
the state variables of the game, please make sure there is a function added that is called 
every time START is pressed that resets the game state. Please fix this bug, 
and re-list the entire game.

There is still a bug with re-starting the game after the player dies. The game scrolls faster 
and faster each re-start, something is not being reset, or the update frame function is getting 
called multiple times redundantly each re-start. Please fix this bug and re-list the entire game.

There is still a bug, the game continues to speed up every restart, please make sure you consider 
all corner cases and fix the bug, so there is a single instance of the game loop running at any time. 
Please re-list the entire game with the bug fixed. 

The speed problem has been fixed. But, now there is another bug, when the level increases, you change 
the gap between the pipes, but this happens constantly when triggered instead of a single time as the 
level increases. Please fix this bug, and re-list the entire program.


Final Touches Wish List - TODO

1. Add sound effects and music to game.
2. Add bitmaps for bird, pipes, and background, maybe add some parallax scrolling for the ground and background.
5. Clean up the HTML, add a little style to the START button, and page background color.
6. Add text to pretty up the display.
7. Add a control bar div with better START button.
8. Make scoring system smarter, so it takes level and speeds into consideration.

-->

<head>
    <title>ChatGPT Flappy Bird</title>
    <style>
        body {
            center;
            align-items:
                center;
            height: 100vh;
        }

        canvas {
            border: 2px solid #000000;
            display: block;
            margin: 0 auto;
        }

        button {
            font-family: fantasy;
            font-size: 16px;
            background-color: sandybrown;
            color: black;
            margin: 8px;
            border-color: lightgray;
            border-width: 4px;
            border-radius: 8px;
            padding: 8px;

        }

        button:hover {
            background-color: lightgreen;
        }

        .controlPanel {
            background-color: #00C010; /* C3B841 */
            margin: 4px;
            text-align: center;
        }
    </style>
</head>
 
<body id="body-id" style="font-family:Verdana; text-align:center; background-color: #985e3e">

    <div class="controlPanel" style="border: 2px solid #000000;">
        <!-- Start button -->
        <button id="startButton">START</button>
    </div>
    
    <div id="game-canvas-container">
    <canvas id="gameCanvas" width="512" height="640" style="background-color: lightblue; display: block; margin: 0 auto;"></canvas>

            <div class="controlPanel" style="border: 2px solid #000000;">
            <h3 style="color: black; margin-top: 0"> Press SPACEBAR to Flap.</h2>
            <h4 style="color:yellow; margin-top: -8; margin-bottom: 4;"> Fly Through Pipes for Points!</h2>
            </div>
    </div>
    
    <script src="./script.js"> </script>
</body>
</html>