p5.js Web Editor | Cooperative fin

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// ====================
// Custom RectButton Class
// ====================
class RectButton {
  constructor(x, y, w, h, label, callback) {
    this.x = x;
    this.y = y;
    this.w = w;
    this.h = h;
    this.label = label;
    this.callback = callback;
    // Default aesthetic properties
    this.bgColor = color(200, 100, 150);
    this.hoverColor = color(220, 120, 170);
    this.textColor = color(255);
    this.borderRadius = 10;
    this.visible = true;
    this.shadowOffset = 4;
    this.shadowColor = color(0, 0, 0, 100);
    this.textSize = 16; // Default text size
  }
  
  draw() {
    if (!this.visible) return;
    
    // Draw shadow
    noStroke();
    fill(this.shadowColor);
    rect(this.x + this.shadowOffset, this.y + this.shadowOffset, this.w, this.h, this.borderRadius);
    
    // Choose fill based on hover state
    if (this.isMouseOver()) {
      fill(this.hoverColor);
    } else {
      fill(this.bgColor);
    }
    noStroke();
    rect(this.x, this.y, this.w, this.h, this.borderRadius);
    
    // Draw label text using the instance's textSize
    fill(this.textColor);
    textSize(this.textSize);
    textAlign(CENTER, CENTER);
    text(this.label, this.x + this.w / 2, this.y + this.h / 2);
  }
  
  isMouseOver() {
    return (mouseX >= this.x &&
            mouseX <= this.x + this.w &&
            mouseY >= this.y &&
            mouseY <= this.y + this.h);
  }
  
  handleMousePressed() {
    if (this.isMouseOver() && this.callback) {
      this.callback();
    }
  }
  
  hide() {
    this.visible = false;
  }
  
  show() {
    this.visible = true;
  }
}
​
// ====================
// Global variables for UI, objects, and audio
// ====================
let promptInput, createButton, startButton, nextButton, restartButton, audioButton;
let dreamObjects = [];  // Only one dream object is shown at a time
let gameStarted = false;
​
// Main background image (static)
let bgMain;
// Array of board images (b1.png - b10.png)
let boards = [];
let currentBoardIndex = 0;
let staticBoard;
let chalkFont;
​
// Audio variables
let music;
let audioOn = true;
​
function preload() {
  chalkFont = loadFont('PermanentMarker-Regular.ttf');
  bgMain = loadImage("background.jpg");
  staticBoard = loadImage("paintboardd.png");
  music = loadSound("music.mp3");
  // Load board images b1.png to b10.png.
  for (let i = 1; i <= 10; i++) {
    boards.push(loadImage("b" + i + ".png"));
  }
}
​
function setup() {
  createCanvas(900, 600);
  textFont(chalkFont);
  textStyle(BOLD);
  
  // Start music if audio is on
  if (audioOn && music) {
    music.loop();
  }
  
  // Create the instructions screen start button (position will be set in drawInstructions)
  startButton = new RectButton(width / 2 - 50, height / 2 + 40, 100, 40, "Start", startGame);
  
  // Create the text input as a multi-line textarea.
  // (We know the desired position: x=350, y=100, and size: 300×60)
  promptInput = createElement('textarea', "Provide Object Description");
  promptInput.position(300, 100);
  promptInput.size(300, 60);
  promptInput.hide();
  
  // Create the "Create your painting!" button.
  // Hard-coded to be positioned just below the input.
  createButton = new RectButton(350 + 10, 100 + 60 + 10, 180, 40, "Create your painting!", () => {
    let userText = promptInput.value();
    let geminiPrompt = `
You are an AI code generator working within an online p5.js editor environment. In this environment, the following conditions apply:
- The p5.js library is loaded along with its DOM addon (p5.dom), so functions like createCanvas, createButton, and createInput are available.
- A canvas of 800x600 pixels is created as part of a "dream room" simulation.
- The dream room maintains an array of dream objects. Each dream object must be defined as a JavaScript object with the following properties:
    - x: a numeric value representing the horizontal coordinate (default value: 100)
    - y: a numeric value representing the vertical coordinate (default value: 100)
    - size: a numeric value representing the object’s size (default value: 50)
    - draw: a function that uses p5.js drawing commands (for example, ellipse) to render the object at (x, y) using its size. Ensure you combine multiple shapes for a rich rendering.
    - move: a function that accepts two parameters, dx and dy, and updates the x and y coordinates respectively
​
Your task is to generate a valid p5.js code snippet that creates a new dream object (named \dreamObj\) with these properties. The object must be defined using "let".
​
Output Requirements:
- Your output must be a valid JSON object with exactly two keys: "code" and "description".
- The "code" key’s value must be a string containing the p5.js code that defines the dream object as described.
- The "description" key’s value must be a concise explanation of what the code does.
- Do not include any additional keys or text; output only the JSON.
​
Now, generate the object: 
`;
    let prompt = geminiPrompt + userText;
    generateDreamObject(prompt);
  });
  createButton.textSize = 14;
  createButton.hide();
  
  // Create the "Next Board" button on bottom right.
  nextButton = new RectButton(750, height - 80, 100, 40, "Next Board", nextScreen);
  // Set nextButton's colors to dark blue.
  nextButton.bgColor = color(0, 0, 139);
  nextButton.hoverColor = color(30, 30, 170);
  nextButton.hide();
  
  // Create the "Restart" button on bottom left.
  restartButton = new RectButton(30, height - 80, 80, 40, "Restart", restartGame);
  // Set restartButton's colors to dark blue.
  restartButton.bgColor = color(0, 0, 139);
  restartButton.hoverColor = color(30, 30, 170);
  restartButton.hide();
  
  // Create the Audio Toggle button on the top right.
  audioButton = new RectButton(width - 150, 20, 120, 40, "Audio: On", toggleAudio);
  // Set audio button's colors to black.
  audioButton.bgColor = color(0);
  audioButton.hoverColor = color(50);
}
​
function draw() {
  if (!gameStarted) {
    drawInstructions();
  } else {
    // Draw the static main background image.
    if (bgMain) {
      image(bgMain, 0, 0, width, height);
    } else {
      background(30, 30, 50);
    }
    
    // Draw the board image on the left side.
    if (boards.length > 0 && boards[currentBoardIndex]) {
      image(boards[currentBoardIndex], 50, 150, 420, 420);
    }
    // Draw the static board image.
    image(staticBoard, 420, 150, 400, 400);
    
    // Draw the current dream object (if any).
    for (let obj of dreamObjects) {
      if (obj.draw) {
        obj.draw();
      }
    }
    
    // Update nextButton label based on board index.
    nextButton.label = (currentBoardIndex === boards.length - 1) ? "End Game" : "Next Board";
    
    // Draw custom buttons.
    createButton.draw();
    nextButton.draw();
    restartButton.draw();
  }
  // Always draw the audio toggle button.
  audioButton.draw();
}
​
function drawInstructions() {
  // Use the same background image as game screens.
  if (bgMain) {
    image(bgMain, 0, 0, width, height);
  } else {
    background(30, 30, 50);
  }
  
  // Define rectangle for instructions.
  let rectX = width / 2 - 300;
  let rectY = height / 2 - 150;
  let rectW = 600;
  let rectH = 300;
  
  // Draw a semi-transparent rectangle for instructions.
  fill(0, 0, 0, 150);
  rect(rectX, rectY, rectW, rectH, 20);
  
  // Draw the heading: center-aligned.
  fill(255);
  textSize(24);
  textAlign(CENTER, TOP);
  text("Welcome to The Magic Studio!", rectX + rectW/2, rectY + 20);
  
  // Draw the instructions text left-aligned inside the rectangle.
  textSize(16);
  textAlign(LEFT, TOP);
  let instructionsText = "Instructions:\n" +
    "1. Click 'Start' to begin.\n" +
    "2. Enter a description and click 'Create your painting!' to generate an object\n" +
    "3. Click the button again to regenerate!\n" +
    "4. Only one object is shown at a time.\n" +
    "5. Click 'Next Board' (bottom right) to go to the board.\n" +
    "6. Click 'Restart' (bottom left) to return to the instructions screen.\n" +
    "7. Use the 'Audio: On/Off' toggle (top right) to turn the music on or off.";
  text(instructionsText, rectX + 20, rectY + 60, rectW - 40, rectH - 80);
  
  // Position the start button below the instructions rectangle.
  startButton.x = width / 2 - 50;
  startButton.y = rectY + rectH + 20;
  startButton.draw();
}
​
// Called when the Start button is pressed.
function startGame() {
  gameStarted = true;
  startButton.hide();
  promptInput.show();
  createButton.show();
  nextButton.show();
  restartButton.show();
}
​
// Called when the Next Board button is pressed.
function nextScreen() {
  if (currentBoardIndex === boards.length - 1) {
    // On last board, end the game.
    endGame();
  } else {
    currentBoardIndex = (currentBoardIndex + 1) % boards.length;
    // Clear any generated dream object so only one is displayed.
    dreamObjects = [];
  }
}
​
// Called when the Restart button is pressed.
function restartGame() {
  endGame();
}
​
// End game: return to the instructions screen and show the start button.
function endGame() {
  gameStarted = false;
  promptInput.hide();
  createButton.hide();
  nextButton.hide();
  restartButton.hide();
  dreamObjects = [];
  currentBoardIndex = 0;
  startButton.show();
}
​
// Handle mousePressed for our custom buttons.
function mousePressed() {
  if (!gameStarted) {
    if (startButton && startButton.isMouseOver()) {
      startButton.handleMousePressed();
    }
  } else {
    if (createButton.isMouseOver()) {
      createButton.handleMousePressed();
    }
    if (nextButton.isMouseOver()) {
      nextButton.handleMousePressed();
    }
    if (restartButton.isMouseOver()) {
      restartButton.handleMousePressed();
    }
  }
  // Always check the audio button.
  if (audioButton && audioButton.isMouseOver()) {
    audioButton.handleMousePressed();
  }
}
​
// --- Audio Toggle ---
// Toggle music on/off.
function toggleAudio() {
  audioOn = !audioOn;
  if (audioOn) {
    audioButton.label = "Audio: On";
    if (music && !music.isPlaying()) {
      music.loop();
    }
  } else {
    audioButton.label = "Audio: Off";
    if (music && music.isPlaying()) {
      music.stop();
    }
  }
}
​
// --- Gemini LLM integration ---
async function callGeminiLM(prompt) {
  const url = "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-pro-exp-02-05:generateContent";
  const apiKey = "AIzaSyDqdz0OgjmhewE43CqmqQ9o4J1jZcDZnMg";  // Replace with your actual API key
​
  const responseSchema = {
    type: "object",
    properties: {
      code: {
        type: "string",
        description: "p5.js code defining the object"
      },
      description: {
        type: "string",
        description: "Explanation of what the code does"
      }
    },
    required: ["code", "description"]
  };
​
  const requestBody = {
    contents: [{
      parts: [{ text: prompt }]
    }],
    generationConfig: {
      response_mime_type: "application/json",
      response_schema: responseSchema
    }
  };
​
  try {
    const response = await fetch(url + "?key=" + apiKey, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(requestBody)
    });
    const data = await response.json();
    
    if (data.candidates && data.candidates.length > 0) {
      let structuredResponse = data.candidates[0].content.parts[0].text;
      console.log(structuredResponse);
      return JSON.parse(structuredResponse);
    } else {
      console.error("No structured output received from Gemini:", data);
      return null;
    }
  } catch (error) {
    console.error("Error calling Gemini LLM:", error);
    return null;
  }
}
​
// Pipeline: call Gemini API, then execute the returned code.
// Append "return dreamObj;" to capture the generated object, even if defined with "let".
async function generateDreamObject(prompt) {
  let response = await callGeminiLM(prompt);
  
  if (response && response.code) {
    try {
      // Clear any previous dream object so only one is displayed at a time.
      dreamObjects = [];
      let codeWithReturn = response.code + "\nreturn dreamObj;";
      let globalFn = new Function(codeWithReturn);
      let generatedDreamObj = globalFn();
      
      if (generatedDreamObj) { 
        // Position the generated dream object on the right side.
        generatedDreamObj.x = 620;
        generatedDreamObj.y = 290;
        dreamObjects.push(generatedDreamObj);
      } else {
        console.error("Generated code did not return a valid 'dreamObj'.");
      }
      console.log("Gemini's description:", response.description);
    } catch (err) {
      console.error("Error executing generated p5.js code:", err);
    }
  }
}
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