/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1");

/**** 
* Classes
****/ 
var BlockPalette = Container.expand(function (width, height) {
	var self = Container.call(this);
	self.paletteWidth = width || 400;
	self.paletteHeight = height || 2732;
	// Create background
	self.background = self.addChild(LK.getAsset('codeBlock', {
		anchorX: 0,
		anchorY: 0,
		width: self.paletteWidth,
		height: self.paletteHeight,
		alpha: 0.3,
		tint: 0x333333
	}));
	// Add title
	self.title = new Text2("Block Palette", {
		size: 40,
		fill: 0xFFFFFF
	});
	self.title.anchor.set(0.5, 0);
	self.title.x = self.paletteWidth / 2;
	self.title.y = 30;
	self.addChild(self.title);
	// Add blocks to palette
	self.addBlockToPalette = function (type, text, x, y) {
		var block = new CodeBlock(type, text);
		block.x = x;
		block.y = y;
		// This is a template block - when dragged, it creates a new instance
		block.down = function (x, y, obj) {
			// Create a new block when this template is clicked
			var newBlock = new CodeBlock(type, text);
			newBlock.x = block.x;
			newBlock.y = block.y;
			// Convert to global position
			var globalPos = self.parent.toGlobal({
				x: block.x,
				y: block.y
			});
			newBlock.x = globalPos.x;
			newBlock.y = globalPos.y;
			// Add to game's blocks array
			blocks.push(newBlock);
			// Add to game
			game.addChild(newBlock);
			// Start dragging the new block
			newBlock.startDragX = newBlock.x;
			newBlock.startDragY = newBlock.y;
			newBlock.isDragging = true;
			draggedBlock = newBlock;
		};
		self.addChild(block);
		return block;
	};
	return self;
});
var Button = Container.expand(function (text, width, height, color) {
	var self = Container.call(this);
	self.buttonWidth = width || 200;
	self.buttonHeight = height || 80;
	self.buttonColor = color || 0x4287f5;
	// Create button background
	self.background = self.addChild(LK.getAsset('codeBlock', {
		anchorX: 0.5,
		anchorY: 0.5,
		width: self.buttonWidth,
		height: self.buttonHeight,
		tint: self.buttonColor
	}));
	// Add text
	self.label = new Text2(text, {
		size: 30,
		fill: 0xFFFFFF
	});
	self.label.anchor.set(0.5, 0.5);
	self.addChild(self.label);
	// Handle down event
	self.down = function (x, y, obj) {
		// Visual feedback
		tween(self.background, {
			scaleX: 0.95,
			scaleY: 0.95
		}, {
			duration: 100
		});
	};
	// Handle up event
	self.up = function (x, y, obj) {
		// Reset scale
		tween(self.background, {
			scaleX: 1,
			scaleY: 1
		}, {
			duration: 100,
			onFinish: function onFinish() {
				// Call the button's action
				if (self.action) {
					self.action();
				}
			}
		});
	};
	return self;
});
var CodeArea = Container.expand(function (width, height) {
	var self = Container.call(this);
	self.areaWidth = width || 1200;
	self.areaHeight = height || 1500;
	// Create background
	self.background = self.addChild(LK.getAsset('codeBlock', {
		anchorX: 0,
		anchorY: 0,
		width: self.areaWidth,
		height: self.areaHeight,
		alpha: 0.2,
		tint: 0x222222
	}));
	// Method to check if a point is inside the code area
	self.isPointInside = function (x, y) {
		var globalPos = game.toLocal({
			x: x,
			y: y
		}, self.parent);
		return globalPos.x >= self.x && globalPos.x <= self.x + self.areaWidth && globalPos.y >= self.y && globalPos.y <= self.y + self.areaHeight;
	};
	return self;
});
var CodeBlock = Container.expand(function (type, text) {
	var self = Container.call(this);
	self.type = type || 'default';
	self.text = text || '';
	self.connections = {
		top: null,
		bottom: null,
		left: null,
		right: null
	};
	self.canConnect = true;
	self.isExecuting = false;
	// Select the correct asset based on type
	var assetId = 'codeBlock';
	if (self.type === 'variable') {
		assetId = 'codeBlockVar';
	} else if (self.type === 'loop') {
		assetId = 'codeBlockLoop';
	} else if (self.type === 'condition') {
		assetId = 'codeBlockCondition';
	} else if (self.type === 'function') {
		assetId = 'codeBlockFunction';
	}
	// Create main block
	self.blockGraphics = self.attachAsset(assetId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Add connection points
	self.connectionPoints = {};
	// Top connection
	self.connectionPoints.top = self.addChild(LK.getAsset('connectionPoint', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: -self.blockGraphics.height / 2
	}));
	// Bottom connection
	self.connectionPoints.bottom = self.addChild(LK.getAsset('connectionPoint', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 0,
		y: self.blockGraphics.height / 2
	}));
	// Left connection (only for condition and loop types)
	if (self.type === 'condition' || self.type === 'loop') {
		self.connectionPoints.left = self.addChild(LK.getAsset('connectionPoint', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: -self.blockGraphics.width / 2,
			y: 0
		}));
	}
	// Right connection (only for condition type)
	if (self.type === 'condition') {
		self.connectionPoints.right = self.addChild(LK.getAsset('connectionPoint', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: self.blockGraphics.width / 2,
			y: 0
		}));
	}
	// Add text label
	self.label = new Text2(self.text, {
		size: 24,
		fill: 0xFFFFFF
	});
	self.label.anchor.set(0.5, 0.5);
	self.addChild(self.label);
	// Execution highlight (initially invisible)
	self.highlight = self.addChild(LK.getAsset('executionHighlight', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0
	}));
	// Handle interaction events
	self.down = function (x, y, obj) {
		if (!programIsRunning) {
			self.startDragX = self.x;
			self.startDragY = self.y;
			self.isDragging = true;
			draggedBlock = self;
			// Bring to front
			if (self.parent) {
				var parent = self.parent;
				parent.removeChild(self);
				parent.addChild(self);
			}
		}
	};
	self.move = function (x, y, obj) {
		// Movement handled by game's move handler
	};
	self.up = function (x, y, obj) {
		if (self.isDragging) {
			self.isDragging = false;
			draggedBlock = null;
			// Check if we're close to another block's connection point
			var connected = false;
			for (var i = 0; i < blocks.length; i++) {
				var otherBlock = blocks[i];
				if (otherBlock !== self && otherBlock.canConnect) {
					connected = self.tryConnectTo(otherBlock);
					if (connected) {
						break;
					}
				}
			}
			if (!connected && codeArea.isPointInside(self.x, self.y)) {
				// Snap to grid if in code area
				self.x = Math.round(self.x / grid.cellSize) * grid.cellSize;
				self.y = Math.round(self.y / grid.cellSize) * grid.cellSize;
			} else if (!connected && !codeArea.isPointInside(self.x, self.y)) {
				// Return to palette area if not connected and outside code area
				self.x = self.startDragX;
				self.y = self.startDragY;
			}
		}
	};
	self.tryConnectTo = function (otherBlock) {
		if (!otherBlock || otherBlock === self) {
			return false;
		}
		// Check proximity to connection points
		var connectionThreshold = 50;
		var myPoints = self.connectionPoints;
		var otherPoints = otherBlock.connectionPoints;
		// Check all possible connections
		for (var myPos in myPoints) {
			if (!myPoints[myPos]) {
				continue;
			}
			var myGlobalPos = self.parent.toGlobal(myPoints[myPos].position);
			for (var otherPos in otherPoints) {
				if (!otherPoints[otherPos]) {
					continue;
				}
				// Skip if this connection is already occupied
				if (otherBlock.connections[otherPos]) {
					continue;
				}
				var otherGlobalPos = otherBlock.parent.toGlobal(otherPoints[otherPos].position);
				var distance = Math.sqrt(Math.pow(myGlobalPos.x - otherGlobalPos.x, 2) + Math.pow(myGlobalPos.y - otherGlobalPos.y, 2));
				// If close enough, connect
				if (distance < connectionThreshold) {
					// Connect based on valid combinations
					var validConnection = false;
					// Top to bottom connections
					if (myPos === 'bottom' && otherPos === 'top' || myPos === 'top' && otherPos === 'bottom') {
						validConnection = true;
					}
					// Left/right connections for condition/loop blocks
					if ((self.type === 'condition' || self.type === 'loop') && otherBlock.type !== 'condition' && otherBlock.type !== 'loop') {
						if (myPos === 'left' && otherPos === 'top' || myPos === 'right' && otherPos === 'top') {
							validConnection = true;
						}
					}
					if (validConnection) {
						self.connectTo(otherBlock, myPos, otherPos);
						return true;
					}
				}
			}
		}
		return false;
	};
	self.connectTo = function (otherBlock, myPos, otherPos) {
		// Position calculation
		if (myPos === 'bottom' && otherPos === 'top') {
			// Align other block below this one
			otherBlock.x = self.x;
			otherBlock.y = self.y + self.blockGraphics.height;
			// Update connections
			self.connections.bottom = otherBlock;
			otherBlock.connections.top = self;
		} else if (myPos === 'top' && otherPos === 'bottom') {
			// Align this block below other one
			self.x = otherBlock.x;
			self.y = otherBlock.y + otherBlock.blockGraphics.height;
			// Update connections
			self.connections.top = otherBlock;
			otherBlock.connections.bottom = self;
		} else if (myPos === 'left' && otherPos === 'top') {
			// Align other block to the left of this one
			otherBlock.x = self.x - self.blockGraphics.width / 2;
			otherBlock.y = self.y;
			// Update connections
			self.connections.left = otherBlock;
			otherBlock.connections.top = self;
		} else if (myPos === 'right' && otherPos === 'top') {
			// Align other block to the right of this one
			otherBlock.x = self.x + self.blockGraphics.width / 2;
			otherBlock.y = self.y;
			// Update connections
			self.connections.right = otherBlock;
			otherBlock.connections.top = self;
		}
		// Play connection sound
		LK.getSound('connect').play();
	};
	self.execute = function (callback) {
		self.isExecuting = true;
		// Show execution highlight
		self.highlight.alpha = 0.5;
		// Play execution sound
		LK.getSound('execute').play();
		// Execute block action based on type
		var executionTime = 800; // Default execution time
		switch (self.type) {
			case 'variable':
				// Variable assignment
				executionLog.push("➡️ Set variable: " + self.text);
				// Visual effect for variable assignment
				tween(self.blockGraphics, {
					alpha: 0.5
				}, {
					duration: 300,
					onFinish: function onFinish() {
						tween(self.blockGraphics, {
							alpha: 1
						}, {
							duration: 300
						});
					}
				});
				break;
			case 'loop':
				// Loop block execution
				executionLog.push("🔄 Loop: " + self.text);
				// Visual effect for loops - make it pulse
				tween(self.blockGraphics, {
					scaleX: 1.1,
					scaleY: 1.1
				}, {
					duration: 400,
					onFinish: function onFinish() {
						tween(self.blockGraphics, {
							scaleX: 1,
							scaleY: 1
						}, {
							duration: 400
						});
					}
				});
				// For loops, we need to execute differently
				executionTime = 1000;
				break;
			case 'condition':
				// Condition evaluation
				executionLog.push("⚖️ If condition: " + self.text);
				// Visual effect for conditions - flash slightly
				tween(self.blockGraphics, {
					alpha: 0.7
				}, {
					duration: 200,
					onFinish: function onFinish() {
						tween(self.blockGraphics, {
							alpha: 1
						}, {
							duration: 200
						});
					}
				});
				break;
			case 'function':
				// Function call
				executionLog.push("🧩 Call function: " + self.text);
				// Visual effect for functions - rotate slightly
				tween(self.blockGraphics, {
					rotation: 0.1
				}, {
					duration: 300,
					onFinish: function onFinish() {
						tween(self.blockGraphics, {
							rotation: 0
						}, {
							duration: 300
						});
					}
				});
				break;
			default:
				// Default block
				executionLog.push("▶️ Execute: " + self.text);
				// Visual effect for standard blocks
				tween(self.blockGraphics, {
					alpha: 0.8
				}, {
					duration: 200,
					onFinish: function onFinish() {
						tween(self.blockGraphics, {
							alpha: 1
						}, {
							duration: 200
						});
					}
				});
				break;
		}
		// Update execution log display
		updateExecutionLog();
		// After execution, continue to next block
		LK.setTimeout(function () {
			self.highlight.alpha = 0;
			self.isExecuting = false;
			if (callback) {
				callback();
			}
		}, executionTime);
	};
	return self;
});
var PreviewDisplay = Container.expand(function () {
	var self = Container.call(this);
	// Create the white cube display area
	self.display = self.addChild(LK.getAsset('codeBlock', {
		anchorX: 0,
		anchorY: 0,
		width: 500,
		height: 500,
		tint: 0xffffff
	}));
	// Title for the preview area
	self.title = new Text2("Program Output", {
		size: 30,
		fill: 0x000000
	});
	self.title.anchor.set(0.5, 0);
	self.title.x = self.display.width / 2;
	self.title.y = 20;
	self.addChild(self.title);
	// Program output text
	self.outputText = new Text2("Your program will run here", {
		size: 24,
		fill: 0x000000,
		wordWrap: true,
		wordWrapWidth: 460
	});
	self.outputText.anchor.set(0.5, 0);
	self.outputText.x = self.display.width / 2;
	self.outputText.y = 80;
	self.addChild(self.outputText);
	// Update the output display
	self.updateOutput = function (results) {
		if (!results || results.length === 0) {
			self.outputText.setText("Your program will run here");
			return;
		}
		var displayText = "";
		// Take the last 5 operations or fewer
		var startIndex = Math.max(0, results.length - 5);
		for (var i = startIndex; i < results.length; i++) {
			displayText += results[i] + "\n\n";
		}
		self.outputText.setText(displayText);
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a1a24
});

/**** 
* Game Code
****/ 
// Grid settings
var grid = {
	cellSize: 100
};
// Game state
var programIsRunning = false;
var draggedBlock = null;
var blocks = [];
var executionLog = [];
var creationScore = 0; // Score based on program complexity
// Function to update the execution log display
function updateExecutionLog() {
	var logText = "Execution Log:\n";
	for (var i = 0; i < executionLog.length; i++) {
		logText += "- " + executionLog[i] + "\n";
	}
	executionLogText.setText(logText);
}
// Create the code area
var codeArea = new CodeArea(1200, 1500);
codeArea.x = 424; // Offset from left edge
codeArea.y = 150; // Offset from top
game.addChild(codeArea);
// Create block palette
var blockPalette = new BlockPalette(400, 2732);
blockPalette.x = 20; // Left edge
blockPalette.y = 0; // Top edge
game.addChild(blockPalette);
// Add blocks to palette
var yOffset = 100;
var blockSpacing = 120;
// Basic blocks
blockPalette.addBlockToPalette('default', "Print 'Hello World'", blockPalette.paletteWidth / 2, yOffset + blockSpacing);
blockPalette.addBlockToPalette('default', "Display Message", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 2);
blockPalette.addBlockToPalette('default', "Play Sound", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 3);
// Variable blocks
blockPalette.addBlockToPalette('variable', "x = 5", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 4);
blockPalette.addBlockToPalette('variable', "y = 10", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 5);
blockPalette.addBlockToPalette('variable', "counter = 0", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 6);
blockPalette.addBlockToPalette('variable', "name = 'Player'", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 7);
// Loop blocks
blockPalette.addBlockToPalette('loop', "Repeat 3 times", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 8);
blockPalette.addBlockToPalette('loop', "While true", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 9);
blockPalette.addBlockToPalette('loop', "For each item", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 10);
// Condition blocks
blockPalette.addBlockToPalette('condition', "If x > 0", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 11);
blockPalette.addBlockToPalette('condition', "If x == y", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 12);
blockPalette.addBlockToPalette('condition', "If counter > 10", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 13);
// Function blocks
blockPalette.addBlockToPalette('function', "Calculate Sum", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 14);
blockPalette.addBlockToPalette('function', "Get Random Number", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 15);
blockPalette.addBlockToPalette('function', "Convert to String", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 16);
// Action blocks
blockPalette.addBlockToPalette('default', "Draw Shape", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 17);
blockPalette.addBlockToPalette('default', "Move Forward", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 18);
blockPalette.addBlockToPalette('default', "Turn Right", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 19);
blockPalette.addBlockToPalette('default', "Turn Left", blockPalette.paletteWidth / 2, yOffset + blockSpacing * 20);
// Create program builder title
var titleText = new Text2("BlockCode Builder", {
	size: 50,
	fill: 0xFFFFFF
});
titleText.anchor.set(0.5, 0);
titleText.x = codeArea.x + codeArea.areaWidth / 2;
titleText.y = 50;
game.addChild(titleText);
// Create instructions text
var instructionsText = new Text2("Create and run your own programs by connecting blocks from the palette", {
	size: 30,
	fill: 0xFFFFFF,
	wordWrap: true,
	wordWrapWidth: 1100
});
instructionsText.anchor.set(0.5, 0);
instructionsText.x = codeArea.x + codeArea.areaWidth / 2;
instructionsText.y = 110;
game.addChild(instructionsText);
// Execution log
var executionLogText = new Text2("Execution Log:\n", {
	size: 24,
	fill: 0xFFFFFF,
	wordWrap: true,
	wordWrapWidth: 1100
});
executionLogText.anchor.set(0, 0);
executionLogText.x = codeArea.x + 50;
executionLogText.y = codeArea.y + codeArea.areaHeight + 20;
game.addChild(executionLogText);
// Create run button
var runButton = new Button("Execute Program", 220, 80, 0x4CAF50);
runButton.x = codeArea.x + codeArea.areaWidth - 150;
runButton.y = codeArea.y + codeArea.areaHeight + 50;
runButton.action = function () {
	if (!programIsRunning) {
		runProgram();
	}
};
game.addChild(runButton);
// Create reset button
var resetButton = new Button("Clear Canvas", 180, 80, 0xF44336);
resetButton.x = codeArea.x + 100;
resetButton.y = codeArea.y + codeArea.areaHeight + 50;
resetButton.action = function () {
	resetProgram();
};
game.addChild(resetButton);
// Create preview display area
var previewDisplay = new PreviewDisplay();
previewDisplay.x = codeArea.x + codeArea.areaWidth / 2 - 250; // Center horizontally under code area
previewDisplay.y = 2732 - 550; // Position at bottom of screen
game.addChild(previewDisplay);
// Create score display
var scoreText = new Text2("Score: 0", {
	size: 40,
	fill: 0xFFFFFF
});
scoreText.anchor.set(1, 0);
scoreText.x = 2048 - 50;
scoreText.y = 50;
game.addChild(scoreText);
// Function to find all start blocks (blocks without a top connection in code area)
function findStartBlocks() {
	var startBlocks = [];
	for (var i = 0; i < blocks.length; i++) {
		var block = blocks[i];
		if (codeArea.isPointInside(block.x, block.y) && !block.connections.top) {
			startBlocks.push(block);
		}
	}
	return startBlocks;
}
// Function to run the program
function runProgram() {
	// Clear execution log
	executionLog = [];
	updateExecutionLog();
	// Find all starting blocks
	var startingBlocks = [];
	for (var i = 0; i < blocks.length; i++) {
		var block = blocks[i];
		if (codeArea.isPointInside(block.x, block.y) && !block.connections.top) {
			startingBlocks.push(block);
		}
	}
	if (startingBlocks.length === 0) {
		executionLog.push("No starting blocks found!");
		updateExecutionLog();
		// Update preview display
		previewDisplay.updateOutput(["No starting blocks found!"]);
		return;
	}
	programIsRunning = true;
	// Calculate program complexity before execution
	calculateProgramComplexity();
	// Execute all starting blocks in sequence
	var currentBlockIndex = 0;
	function executeNextBlock() {
		if (currentBlockIndex < startingBlocks.length) {
			executionLog.push("--- Running Program " + (currentBlockIndex + 1) + " ---");
			updateExecutionLog();
			executeBlock(startingBlocks[currentBlockIndex], function () {
				currentBlockIndex++;
				executeNextBlock();
			});
		} else {
			// All programs executed
			programIsRunning = false;
			// Reward the player for successfully running programs
			LK.setScore(creationScore);
			scoreText.setText("Score: " + LK.getScore());
			// Update the preview display with the execution results
			previewDisplay.updateOutput(executionLog);
			// Play completion sound for visual feedback
			if (executionLog.length > 0) {
				LK.getSound('complete').play();
			}
		}
	}
	// Start executing blocks
	executeNextBlock();
}
// Function to execute a block and its connected blocks
function executeBlock(block, callback) {
	if (!block) {
		if (callback) {
			callback();
		}
		return;
	}
	block.execute(function () {
		// After execution, continue to next block based on type
		if (block.type === 'condition') {
			// For condition, randomly go left or right branch
			var randomBranch = Math.random() > 0.5 ? 'left' : 'right';
			if (block.connections[randomBranch]) {
				executeBlock(block.connections[randomBranch], function () {
					// After branch execution, continue with bottom block if any
					executeBlock(block.connections.bottom, callback);
				});
			} else {
				// No branch, go to bottom
				executeBlock(block.connections.bottom, callback);
			}
		} else if (block.type === 'loop') {
			// For loop, execute left branch twice, then continue
			if (block.connections.left) {
				executeBlock(block.connections.left, function () {
					// Execute loop content again
					if (block.connections.left) {
						executeBlock(block.connections.left, function () {
							// Then continue with bottom block
							executeBlock(block.connections.bottom, callback);
						});
					} else {
						executeBlock(block.connections.bottom, callback);
					}
				});
			} else {
				// No loop content, go to bottom
				executeBlock(block.connections.bottom, callback);
			}
		} else {
			// For other blocks, just go to bottom
			executeBlock(block.connections.bottom, callback);
		}
	});
}
// Function to reset the program
function resetProgram() {
	// Clear blocks in the code area
	var blocksRemoved = 0;
	for (var i = blocks.length - 1; i >= 0; i--) {
		var block = blocks[i];
		if (codeArea.isPointInside(block.x, block.y)) {
			block.destroy();
			blocks.splice(i, 1);
			blocksRemoved++;
		}
	}
	// Clear execution log
	executionLog = [];
	executionLog.push("Program reset. " + blocksRemoved + " blocks removed.");
	updateExecutionLog();
	// Reset preview display
	previewDisplay.updateOutput(["Program has been reset. Add blocks to create a new program."]);
	// Reset score
	creationScore = 0;
}
// Function to calculate program complexity and score
function calculateProgramComplexity() {
	// Reset score for this program
	creationScore = 0;
	// Count total blocks in the program
	var programBlocks = 0;
	var variableCount = 0;
	var loopCount = 0;
	var conditionCount = 0;
	var functionCount = 0;
	var defaultBlockCount = 0;
	// Count different types of blocks in the code area
	for (var i = 0; i < blocks.length; i++) {
		var block = blocks[i];
		if (codeArea.isPointInside(block.x, block.y)) {
			programBlocks++;
			switch (block.type) {
				case 'variable':
					variableCount++;
					break;
				case 'loop':
					loopCount++;
					break;
				case 'condition':
					conditionCount++;
					break;
				case 'function':
					functionCount++;
					break;
				default:
					defaultBlockCount++;
					break;
			}
		}
	}
	// Base score for having a program
	if (programBlocks > 0) {
		creationScore += 10;
	}
	// Award points for program complexity
	creationScore += variableCount * 15;
	creationScore += loopCount * 25;
	creationScore += conditionCount * 20;
	creationScore += functionCount * 20;
	creationScore += defaultBlockCount * 10;
	// Bonus for more complex programs
	if (programBlocks >= 5) {
		creationScore += 50;
	}
	if (variableCount > 0 && loopCount > 0 && conditionCount > 0) {
		creationScore += 100; // Bonus for using all major programming concepts
	}
	// Play success sound if we have a reasonably complex program
	if (programBlocks >= 3 && (loopCount > 0 || conditionCount > 0)) {
		LK.getSound('complete').play();
	}
}
// Handle game events
game.move = function (x, y, obj) {
	if (draggedBlock && draggedBlock.isDragging) {
		draggedBlock.x = x;
		draggedBlock.y = y;
	}
};
game.down = function (x, y, obj) {
	// Default handler, individual objects have their own handlers
};
game.up = function (x, y, obj) {
	// Default handler, individual objects have their own handlers
};
// Start background music
LK.playMusic('bgmusic');

===================================================================
--- original.js
+++ change.js
@@ -621,47 +621,68 @@
 scoreText.anchor.set(1, 0);
 scoreText.x = 2048 - 50;
 scoreText.y = 50;
 game.addChild(scoreText);
-// Function to find the start block (top-most block in code area)
-function findStartBlock() {
+// Function to find all start blocks (blocks without a top connection in code area)
+function findStartBlocks() {
+	var startBlocks = [];
 	for (var i = 0; i < blocks.length; i++) {
 		var block = blocks[i];
 		if (codeArea.isPointInside(block.x, block.y) && !block.connections.top) {
-			return block;
+			startBlocks.push(block);
 		}
 	}
-	return null;
+	return startBlocks;
 }
 // Function to run the program
 function runProgram() {
 	// Clear execution log
 	executionLog = [];
 	updateExecutionLog();
-	// Find the start block
-	var startBlock = findStartBlock();
-	if (!startBlock) {
-		executionLog.push("No starting block found!");
+	// Find all starting blocks
+	var startingBlocks = [];
+	for (var i = 0; i < blocks.length; i++) {
+		var block = blocks[i];
+		if (codeArea.isPointInside(block.x, block.y) && !block.connections.top) {
+			startingBlocks.push(block);
+		}
+	}
+	if (startingBlocks.length === 0) {
+		executionLog.push("No starting blocks found!");
 		updateExecutionLog();
 		// Update preview display
-		previewDisplay.updateOutput(["No starting block found!"]);
+		previewDisplay.updateOutput(["No starting blocks found!"]);
 		return;
 	}
 	programIsRunning = true;
 	// Calculate program complexity before execution
 	calculateProgramComplexity();
-	executeBlock(startBlock, function () {
-		programIsRunning = false;
-		// Reward the player for successfully running a program
-		LK.setScore(creationScore);
-		scoreText.setText("Score: " + LK.getScore());
-		// Update the preview display with the execution results
-		previewDisplay.updateOutput(executionLog);
-		// Play completion sound for visual feedback
-		if (executionLog.length > 0) {
-			LK.getSound('complete').play();
+	// Execute all starting blocks in sequence
+	var currentBlockIndex = 0;
+	function executeNextBlock() {
+		if (currentBlockIndex < startingBlocks.length) {
+			executionLog.push("--- Running Program " + (currentBlockIndex + 1) + " ---");
+			updateExecutionLog();
+			executeBlock(startingBlocks[currentBlockIndex], function () {
+				currentBlockIndex++;
+				executeNextBlock();
+			});
+		} else {
+			// All programs executed
+			programIsRunning = false;
+			// Reward the player for successfully running programs
+			LK.setScore(creationScore);
+			scoreText.setText("Score: " + LK.getScore());
+			// Update the preview display with the execution results
+			previewDisplay.updateOutput(executionLog);
+			// Play completion sound for visual feedback
+			if (executionLog.length > 0) {
+				LK.getSound('complete').play();
+			}
 		}
-	});
+	}
+	// Start executing blocks
+	executeNextBlock();
 }
 // Function to execute a block and its connected blocks
 function executeBlock(block, callback) {
 	if (!block) {