// CircuitCore.js: adds circuits (logicGates.js is required)

// Other mods
ensureModEnabled("mods/betterSettings.js");
ensureModEnabled("mods/logicgates.js");
const isLightmapEnabled = enabledMods.includes("mods/lightmap.js") || enabledMods.includes("mods/fast_lightmap.js");

// Define settings
const cc_settingsTab = new SettingsTab("CircuitCore");
const cc_heat_emit_setting = new Setting("Make circuits emit heat", "heatEmit", settingType.BOOLEAN, false, true);
const cc_stable_tick_setting = new Setting("More consistent logicgates.js tick (page refresh required)", "stableTick", settingType.BOOLEAN, false, true);
cc_settingsTab.registerSettings("Realism", cc_heat_emit_setting);
cc_settingsTab.registerSettings("Tick", cc_stable_tick_setting);
settingsManager.registerTab(cc_settingsTab);

// Constants
const DIGIT_SEGMENT_PATTERNS = [
	"111101101101111", // 0
	"001001001001001", // 1
	"111001111100111", // 2
	"111001111001111", // 3
	"101101111001001", // 4
	"111100111001111", // 5
	"111100111101111", // 6
	"111001001001001", // 7
	"111101111101111", // 8
	"111101111001111", // 9
	"111101111101101", // A
	"100100111101111", // B
	"111100100100111", // C
	"001001111101111", // D
	"111100111100111", // E
	"111100111100100"  // F
];

let colorPalette_4bit = [
	"#101820", "#37175F", "#5F1717", "#6F175F",
	"#005F00", "#1563BF", "#7F401A", "#525252",
	"#8F8F8F", "#EE8822", "#FF3027", "#FF47FF",
	"#58E618", "#27FFDF", "#FFFF27", "#FFFFFF"
];

function ensureModEnabled(modName) {
	if (enabledMods.includes(modName))
		return;

	enabledMods.unshift(modName);
	localStorage.setItem("enabledMods", JSON.stringify(enabledMods));
	window.location.reload();
}

function cc_arrayToRgbString(rgbArray) {
	return `rgb(${rgbArray.join(', ')})`;
}

function cc_scaleList(numbers, scale) {
	return numbers.map(number => number * scale);
}

function binaryArrayToNumber(binaryArray) {
	return binaryArray.reduce((number, bit) => (number << 1) | bit, 0);
}

function validateHexDigit(digit) {
	if (!Number.isInteger(digit) || digit < 0 || digit >= DIGIT_SEGMENT_PATTERNS.length) {
		throw new RangeError(`Hex digit must be between 0 and 15, got ${digit}`);
	}
}

function parseBitTriplet(triplet) {
	return triplet.split('').map(c => c === '1' ? 1 : 0);
}

function createSevenSegmentGrid(digit) {
	validateHexDigit(digit);

	const pattern = DIGIT_SEGMENT_PATTERNS[digit];
	const grid = [];

	for (let i = 0; i < 15; i += 3) {
		grid.push(parseBitTriplet(pattern.slice(i, i + 3)));
	}

	return grid;
}

function rotateCoordinateAroundOrigin(x, y, angle) {
	let radians = angle * (Math.PI / 180);
	let cos = Math.cos(radians);
	let sin = Math.sin(radians);

	let nx = Math.round(x * cos - y * sin);
	let ny = Math.round(x * sin + y * cos);

	return [nx, ny];
}

// Initialize the circuit with optional rotation
function initializeCircuit(pixel, pins, w, h, center = true, rotation = circuitRotation, callback = () => {
}) {
	if (pixel.hasGenerated) {
		return;
	}

	if (!center) {
		rotation = 0;
	} // non-centered circuits don't support rotation yet
	pixel.circuitRotation = rotation;

	createCircuitFrame(pixel, w, h, center, rotation);
	createPins(pixel, pins, rotation);
	callback(pixel, pins, w, h);

	pixel.hasGenerated = true;
}

function createCircuitFrame(pixel, width_, height_, center = true, rotation = 0) {
	let halfHeight = Math.floor(height_ / 2);
	let halfWidth = Math.floor(width_ / 2);

	let a = -halfHeight;
	let b = halfHeight;
	let c = -halfWidth;
	let d = halfWidth;

	if (!center) {
		a = 0;
		b = height_ - 1;
		c = 0;
		d = width_ - 1;
	}

	for (let y = a; y <= b; y++) {
		for (let x = c; x <= d; x++) {
			let [rx, ry] = rotateCoordinateAroundOrigin(x, y, rotation);
			let px = pixel.x + rx;
			let py = pixel.y + ry;

			if (!(0 <= px && px < width && 0 <= py && py < height)) {
				continue;
			}

			// Create the pixel
			if (!pixelMap[px] || pixelMap[px][py] === undefined) {
				createPixel("circuit_material", px, py);
			}

			// Set the core position property
			if (pixelMap[px] && pixelMap[px][py] && pixelMap[px][py].element === "circuit_material") {
				pixelMap[px][py].corePosition = {x: pixel.x, y: pixel.y};
			}
		}
	}
}

function createPins(pixel, pins, rotation = 0) {
	for (let i = 0; i < pins.length; i++) {
		let [rx, ry] = rotateCoordinateAroundOrigin(pins[i][0], pins[i][1], rotation);
		let px = pixel.x + rx;
		let py = pixel.y + ry;
		if (!(0 <= px && px < width && 0 <= py && py < height)) {
			continue;
		}

		if (!pixelMap[px] || pixelMap[px][py] === undefined) {
			let pinType = pins[i][2] ? "input_pin" : "output_pin";
			createPixel(pinType, px, py);
		}
	}
}

function getRotatedPinPixel(pixel, pins, index, rotation = pixel.circuitRotation) {
	let [rx, ry] = rotateCoordinateAroundOrigin(pins[index][0], pins[index][1], rotation);
	let px = pixel.x + rx;
	let py = pixel.y + ry;
	if (!(0 <= px && px < width && 0 <= py && py < height)) {
		return null;
	}
	return pixelMap[px][py];
}

function checkPin(pixel, pins, index, rotation = pixel.circuitRotation) {
	const target = getRotatedPinPixel(pixel, pins, index, rotation);
	return target && target.active;
}

function setPin(pixel, pins, index, value, rotation = pixel.circuitRotation) {
	const target = getRotatedPinPixel(pixel, pins, index, rotation);
	if (target && target.element === "output_pin") {
		target.active = value;
	}
}

// Circuits
function general_reverser(inputBits) {
	return function (pixel) {
		let pins = [];
		let outputCount = inputBits;
		let circuitWidth = (inputBits * 2) + 1;
		let circuitHeight = 3;

		// Define input pins
		for (let i = 0; i < inputBits; i++) {
			pins.push([Math.floor(circuitWidth / 2) - 1 - (2 * i), -2, true]);
		}

		// Define output pins
		for (let i = 0; i < outputCount; i++) {
			pins.push([Math.floor(circuitWidth / 2) - 1 - (2 * i), 2, false]); // Right outputs
		}

		initializeCircuit(pixel, pins, circuitWidth, circuitHeight);

		// Read input values
		let input = [];
		for (let i = 0; i < inputBits; i++) {
			input.push(checkPin(pixel, pins, i));
		}

		// Set output values
		for (let i = 0; i < outputCount; i++) {
			setPin(pixel, pins, inputBits + i, input[input.length - 1 - i]);
		}
	};
}

elements.two_bit_reverser_circuit = {
	cc_stableTick: general_reverser(2)
};

let lastSelectedReverserCircuitBits;
elements.reverser_circuit = {
	onSelect: function () {
		// Prompt user for the bit count
		lastSelectedReverserCircuitBits = parseInt(prompt("How many bits wide chip?", "4"));
	},
	cc_stableTick: function (pixel) {
		if (!pixel.bits) {
			pixel.bits = lastSelectedReverserCircuitBits;
		}
		let circuitFunction = general_reverser(pixel.bits);
		circuitFunction(pixel);
	}
};

elements.four_bit_selector_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			// First 4-bit input (A)
			[-7, -2, true],  // A0
			[-5, -2, true],  // A1
			[-3, -2, true],  // A2
			[-1, -2, true],  // A3

			// Second 4-bit input (B)
			[1, -2, true],   // B0
			[3, -2, true],   // B1
			[5, -2, true],   // B2
			[7, -2, true],   // B3

			// Selection pin (Sel)
			[9, 0, true],	// Selection (Sel)

			// Output (O)
			[-3, 2, false],  // O0 (centered)
			[-1, 2, false],  // O1 (centered)
			[1, 2, false],  // O2 (centered)
			[3, 2, false],  // O3 (centered)
		];

		initializeCircuit(pixel, pins, 17, 3);

		// Read inputs
		let A = [
			checkPin(pixel, pins, 0),
			checkPin(pixel, pins, 1),
			checkPin(pixel, pins, 2),
			checkPin(pixel, pins, 3)
		];

		let B = [
			checkPin(pixel, pins, 4),
			checkPin(pixel, pins, 5),
			checkPin(pixel, pins, 6),
			checkPin(pixel, pins, 7)
		];

		let Sel = checkPin(pixel, pins, 8); // Selection pin

		// Select between A and B based on Sel
		let output = Sel ? B : A;

		// Output the selected 4-bit value
		setPin(pixel, pins, 9, output[0]);   // O0
		setPin(pixel, pins, 10, output[1]);  // O1
		setPin(pixel, pins, 11, output[2]);  // O2
		setPin(pixel, pins, 12, output[3]);  // O3
	}
};

elements.four_bit_enabler_circuit = {
	centered: true,
	cc_stableTick: function (pixel) {
		let pins = [
			// Data inputs (D0-D3)
			[-3, -2, true],  // D0
			[-1, -2, true],  // D1
			[1, -2, true],  // D2
			[3, -2, true],   // D3

			// Enable input (E)
			[5, 0, true],   // Enable (E)

			// Enable mirror (E2)
			[-5, 0, false],

			// Outputs (Q0-Q3)
			[-3, 2, false],  // Q0
			[-1, 2, false],  // Q1
			[1, 2, false],  // Q2
			[3, 2, false]	// Q3
		];

		let elementData = elements[pixel.element];
		initializeCircuit(pixel, pins, 9, 3, elementData.centered);

		// Read inputs
		let D = [
			checkPin(pixel, pins, 0),
			checkPin(pixel, pins, 1),
			checkPin(pixel, pins, 2),
			checkPin(pixel, pins, 3)
		];

		let C = checkPin(pixel, pins, 4); // Control input
		setPin(pixel, pins, 5, C);

		// Previous state initialization
		if (pixel._state === undefined) {
			pixel._state = [false, false, false, false];
		}

		// Update latch state based on control input
		if (C) {
			pixel._state = [D[0], D[1], D[2], D[3]]; // Update latch state with data inputs
		} else {
			pixel._state = [false, false, false, false];
		}

		// Output the latch state
		setPin(pixel, pins, 6, pixel._state[0]); // Q0
		setPin(pixel, pins, 7, pixel._state[1]); // Q1
		setPin(pixel, pins, 8, pixel._state[2]); // Q2
		setPin(pixel, pins, 9, pixel._state[3]); // Q3
	}
};

elements.randomizer = {
	color: "#FFCCFF",
	cc_stableTick: function (pixel) {
		for (let i = 0; i < adjacentCoords.length; i++) {
			let coord = adjacentCoords[i];
			let x = pixel.x + coord[0];
			let y = pixel.y + coord[1];
			if (!isEmpty(x, y, true)) {
				if (pixelMap[x][y].element === "logic_wire") {
					if (Math.random() < 0.5) {
						pixelMap[x][y].lstate = 2
						pixelMap[x][y].color = pixelColorPick(pixelMap[x][y], "#ffe49c")
					} else {
						pixelMap[x][y].lstate = -2
						pixelMap[x][y].color = pixelColorPick(pixelMap[x][y], "#3d4d2c")
					}
				}
			}
		}
	},
}

elements.four_bit_randomizer_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			// Clock input
			[0, -2, true],   // Clock

			// Outputs (Q0-Q3)
			[-3, 2, false],  // Q0
			[-1, 2, false],  // Q1
			[1, 2, false],   // Q2
			[3, 2, false]	// Q3
		];

		initializeCircuit(pixel, pins, 9, 3);

		// Read clock input
		let clock = checkPin(pixel, pins, 0);

		// Initialize the state if not already done
		if (pixel._state === undefined) {
			pixel._state = [false, false, false, false];
			pixel.prevClock = false;
		}

		// Detect the positive edge on the clock pin
		if (clock && !pixel.prevClock) {
			// Generate a new 4-bit random number
			let randomValue = Math.floor(Math.random() * 16);

			// Update the state with the new random value
			pixel._state = [
				(randomValue & 1) !== 0,
				(randomValue & 2) !== 0,
				(randomValue & 4) !== 0,
				(randomValue & 8) !== 0
			];
		}

		// Output the current state
		setPin(pixel, pins, 1, pixel._state[0]); // Q0
		setPin(pixel, pins, 2, pixel._state[1]); // Q1
		setPin(pixel, pins, 3, pixel._state[2]); // Q2
		setPin(pixel, pins, 4, pixel._state[3]); // Q3

		// Update previous state of clock input
		pixel.prevClock = clock;
	}
};

function general_encoder(inputBits) {
	return function (pixel) {
		let pins = [];
		let outputBits = Math.ceil(Math.log2(inputBits));
		let circuitWidth = (inputBits * 2) + 1;
		let circuitHeight = (outputBits * 2) + 1;

		// Define input pins
		for (let i = 0; i < inputBits; i++) {
			pins.push([Math.floor(circuitWidth / 2) - 1 - (2 * i), outputBits + 1, true]);
		}

		// Define output pins
		for (let i = 0; i < outputBits; i++) {
			pins.push([Math.floor(circuitWidth / 2) + 1, outputBits - 1 - (2 * i), false]); // Right outputs
		}

		// Mirrored outputs
		for (let i = 0; i < outputBits; i++) {
			pins.push([-Math.floor(circuitWidth / 2) - 1, outputBits - 1 - (2 * i), false]); // Left outputs
		}

		initializeCircuit(pixel, pins, circuitWidth, circuitHeight);

		// Determine which input is active (priority encoder)
		let activeInput = -1;
		for (let i = inputBits - 1; i >= 0; i--) {
			if (checkPin(pixel, pins, i)) {
				activeInput = i;
				break;
			}
		}

		// Set output values based on active input
		for (let i = 0; i < outputBits; i++) {
			let outputValue = activeInput >= 0 ? ((activeInput >> i) & 1) : false;
			setPin(pixel, pins, inputBits + i, outputValue); // Right outputs
			setPin(pixel, pins, inputBits + outputBits + i, outputValue); // Left outputs
		}
	};
}

// Define a 2-to-1 encoder using the general_encoder function
elements.two_to_one_encoder_circuit = {
	cc_stableTick: general_encoder(2)
};

// Define a 4-to-2 encoder using the general_encoder function
elements.four_to_two_encoder_circuit = {
	cc_stableTick: general_encoder(4)
};

// Define an 8-to-3 encoder using the general_encoder function
elements.eight_to_three_encoder_circuit = {
	cc_stableTick: general_encoder(8)
};

// Define a 16-to-4 encoder using the general_encoder function
elements.sixteen_to_four_encoder_circuit = {
	cc_stableTick: general_encoder(16)
};

function general_demultiplexer(selectorBits) {
	return function (pixel) {
		let pins = [];
		let outputCount = Math.pow(2, selectorBits);
		let circuitWidth = 3;
		let circuitHeight = (outputCount * 2) + 1;

		// Define the input pin
		pins.push([0, Math.floor(circuitHeight / 2) + 1, true]);

		// Define selector pins
		for (let i = 0; i < selectorBits; i++) {
			pins.push([-2, (Math.floor(circuitHeight / 2) - 1) - (2 * i), true]);
		}

		// Define output pins
		for (let i = 0; i < outputCount; i++) {
			pins.push([Math.floor(circuitWidth / 2) + 1, Math.floor(circuitHeight / 2) - 1 - (2 * i), false]);
		}

		initializeCircuit(pixel, pins, circuitWidth, circuitHeight);

		// Read input and selector values
		let input = checkPin(pixel, pins, 0);
		let selector = 0;
		for (let i = 0; i < selectorBits; i++) {
			if (checkPin(pixel, pins, 1 + i)) {
				selector += Math.pow(2, i);
			}
		}

		// Set output values based on selector
		for (let i = 0; i < outputCount; i++) {
			setPin(pixel, pins, 1 + selectorBits + i, i === selector ? input : false);
		}
	};
}

// Define a 1-to-2 demultiplexer using the general_demultiplexer function
elements.one_to_two_demultiplexer_circuit = {
	cc_stableTick: general_demultiplexer(1)
};

// Define a 1-to-4 demultiplexer using the general_demultiplexer function
elements.one_to_four_demultiplexer_circuit = {
	cc_stableTick: general_demultiplexer(2)
};

// Define a 1-to-8 demultiplexer using the general_demultiplexer function
elements.one_to_eight_demultiplexer_circuit = {
	cc_stableTick: general_demultiplexer(3)
};

// Define a 1-to-16 demultiplexer using the general_demultiplexer function
elements.one_to_sixteen_demultiplexer_circuit = {
	cc_stableTick: general_demultiplexer(4)
};

function general_decoder(inputBits) {
	return function (pixel) {
		let pins = [];
		let outputCount = Math.pow(2, inputBits);
		let circuitWidth = (inputBits * 2) + 1;
		let circuitHeight = (outputCount * 2) + 1;

		// Define input pins
		for (let i = 0; i < inputBits; i++) {
			pins.push([Math.floor(circuitWidth / 2) - 1 - (2 * i), outputCount + 1, true]);
		}

		// Define output pins
		for (let i = 0; i < outputCount; i++) {
			pins.push([Math.floor(circuitWidth / 2) + 1, outputCount - 1 - (2 * i), false]); // Right outputs
		}

		for (let i = 0; i < outputCount; i++) {
			pins.push([-Math.floor(circuitWidth / 2) - 1, outputCount - 1 - (2 * i), false]); // Left outputs
		}

		initializeCircuit(pixel, pins, circuitWidth, circuitHeight);

		// Read input values
		let input = 0;
		for (let i = 0; i < inputBits; i++) {
			if (checkPin(pixel, pins, i)) {
				input += Math.pow(2, i);
			}
		}

		// Set output values
		for (let i = 0; i < outputCount; i++) {
			let outputValue = (i === input);
			setPin(pixel, pins, inputBits + i, outputValue); // Right outputs
			setPin(pixel, pins, inputBits + outputCount + i, outputValue); // Left outputs
		}
	};
}

elements.one_to_two_decoder_circuit = {
	cc_stableTick: general_decoder(1)
};

elements.two_to_four_decoder_circuit = {
	cc_stableTick: general_decoder(2)
};

elements.three_to_eight_decoder_circuit = {
	cc_stableTick: general_decoder(3)
};

elements.four_to_sixteen_decoder_circuit = {
	cc_stableTick: general_decoder(4)
};

function general_multiplexer(inputLines) {
	return function (pixel) {
		let pins = [];
		let selectorBits = Math.ceil(Math.log2(inputLines));
		let circuitWidth = (selectorBits * 2) + 1;
		let circuitHeight = (inputLines * 2) + 1;

		// Define selector pins
		for (let i = 0; i < selectorBits; i++) {
			pins.push([Math.floor(circuitWidth / 2) - 1 - (2 * i), inputLines + 1, true]);
		}

		// Define input data pins
		for (let i = 0; i < inputLines; i++) {
			pins.push([-Math.floor(circuitWidth / 2) - 1, inputLines - 1 - (2 * i), true]);
		}

		// Define output pin
		pins.push([Math.floor(circuitWidth / 2) + 1, 0, false]);

		initializeCircuit(pixel, pins, circuitWidth, circuitHeight);

		// Read selector input
		let selector = 0;
		for (let i = 0; i < selectorBits; i++) {
			if (checkPin(pixel, pins, i)) {
				selector += Math.pow(2, i);
			}
		}

		setPin(pixel, pins, selectorBits + inputLines, checkPin(pixel, pins, selector + selectorBits)); // Output pin
	};
}

// Define a 2-input multiplexer using the general_multiplexer function
elements.two_to_one_multiplexer_circuit = {
	cc_stableTick: general_multiplexer(2)
};

// Define a 4-input multiplexer using the general_multiplexer function
elements.four_to_one_multiplexer_circuit = {
	cc_stableTick: general_multiplexer(4)
};

// Define an 8-input multiplexer using the general_multiplexer function
elements.eight_to_one_multiplexer_circuit = {
	cc_stableTick: general_multiplexer(8)
};

// Define an 8-input multiplexer using the general_multiplexer function
elements.sixteen_to_one_multiplexer_circuit = {
	cc_stableTick: general_multiplexer(16)
};

elements.four_bit_PISO_shift_register_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			// Data inputs (D0-D3)
			[3, -3, true],   // D3
			[1, -3, true],   // D2
			[-1, -3, true],  // D1
			[-3, -3, true],  // D0

			// Control input (Load/Shift Enable)
			[-5, -1, true],  // Load/Shift Enable

			// Clock input
			[-5, 1, true],   // Clock

			// Serial output
			[5, -1, false],  // Serial Out (Q)
			[5, 1, false]	// Transmission Flag
		];

		initializeCircuit(pixel, pins, 9, 5);

		// Read data inputs
		let D = [
			checkPin(pixel, pins, 0),
			checkPin(pixel, pins, 1),
			checkPin(pixel, pins, 2),
			checkPin(pixel, pins, 3)
		];

		// Read control and clock inputs
		let loadShiftEnable = checkPin(pixel, pins, 4);
		let clock = checkPin(pixel, pins, 5);

		// Initialize the state if not already done
		if (pixel._state === undefined) {
			pixel._state = [false, false, false, false];
			pixel.bitIndex = 0;
			pixel.prevLoadShiftEnable = false;
			pixel.prevClock = false;
		}

		// Detect the positive edge on the control pin
		if (loadShiftEnable && !pixel.prevLoadShiftEnable) {
			// Load the data into the register on the first positive edge
			pixel._state = [D[0], D[1], D[2], D[3]];
			pixel.bitIndex = 0;
		}

		// Detect the positive edge on the clock pin
		if (clock && !pixel.prevClock) {
			if (pixel.bitIndex < 4) {
				// Shift the register and output the next bit
				let serialOut = pixel._state[0];
				for (let i = 0; i < 3; i++) {
					pixel._state[i] = pixel._state[i + 1];
				}
				pixel._state[3] = false;  // Clear the last bit after shifting

				// Output the serial value
				setPin(pixel, pins, 6, serialOut);

				// Update bit index
				pixel.bitIndex++;
			}
		}

		// Set the transmission flag
		let transmitting = pixel.bitIndex < 4 && loadShiftEnable;
		setPin(pixel, pins, 7, transmitting);

		// Update previous state of control and clock inputs
		pixel.prevLoadShiftEnable = loadShiftEnable;
		pixel.prevClock = clock;
	}
};

elements.four_bit_SIPO_shift_register_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			// Serial input (Data In)
			[-2, -3, true],  // Data In

			// Clock input
			[-2, -1, true],   // Clock

			// Parallel outputs (Q0-Q3)
			[2, 3, false],	// Q3
			[2, 1, false],   // Q2
			[2, -1, false],  // Q1
			[2, -3, false]  // Q0
		];

		initializeCircuit(pixel, pins, 3, 9);

		// Read serial and clock input
		let serialIn = checkPin(pixel, pins, 0);
		let clock = checkPin(pixel, pins, 1);

		// Initialize the state if not already done
		if (pixel._state === undefined) {
			pixel._state = [false, false, false, false];
			pixel.prevClock = false;
		}

		// Detect the positive edge on the clock pin
		if (clock && !pixel.prevClock) {
			pixel._state = [serialIn, pixel._state[0], pixel._state[1], pixel._state[2]];
		}

		// Output the parallel values
		for (let i = 0; i < 4; i++) {
			setPin(pixel, pins, 2 + i, pixel._state[i]);
		}

		// Update previous state of control and clock inputs
		pixel.prevClock = clock;
	}
};

elements.four_bit_program_counter_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			// Data inputs (D0-D3)
			[-3, -3, true],  // D0
			[-1, -3, true],  // D1
			[1, -3, true],   // D2
			[3, -3, true],   // D3

			// Control inputs (Increment, Write Enable)
			[5, -1, true],   // Increment
			[5, 1, true],	// Write Enable

			// Outputs (Q0-Q3)
			[-3, 3, false],  // Q0
			[-1, 3, false],  // Q1
			[1, 3, false],   // Q2
			[3, 3, false],   // Q3
		];

		initializeCircuit(pixel, pins, 9, 5);

		// Read data inputs
		let D = [
			checkPin(pixel, pins, 0),
			checkPin(pixel, pins, 1),
			checkPin(pixel, pins, 2),
			checkPin(pixel, pins, 3)
		];

		// Read control inputs
		let Increment = checkPin(pixel, pins, 4);
		let WriteEnable = checkPin(pixel, pins, 5);

		// Initialize the state if not already done
		if (pixel._state === undefined) {
			pixel._state = [false, false, false, false];
			pixel.prevIncrement = false; // Previous state of Increment pin
		}

		// Convert the state to a 4-bit binary number
		let stateValue = binaryArrayToNumber(pixel._state);

		// Detect the positive edge on the Increment pin
		if (Increment && !pixel.prevIncrement) {
			stateValue = (stateValue + 1) % 16;  // Ensure the value wraps around at 4 bits
		}

		// Update the register state if WriteEnable is active
		if (WriteEnable) {
			stateValue = binaryArrayToNumber(D); // Load data inputs into state
		}

		// Update the state
		pixel._state = [
			(stateValue & 8) !== 0,
			(stateValue & 4) !== 0,
			(stateValue & 2) !== 0,
			(stateValue & 1) !== 0
		];

		// Output the register state
		setPin(pixel, pins, 6, pixel._state[0]); // Q0
		setPin(pixel, pins, 7, pixel._state[1]); // Q1
		setPin(pixel, pins, 8, pixel._state[2]); // Q2
		setPin(pixel, pins, 9, pixel._state[3]); // Q3

		// Update previous state of Increment pin
		pixel.prevIncrement = Increment;
	}
};

elements.four_bit_register_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			// Data inputs (D0-D3)
			[-3, -3, true],  // D0
			[-1, -3, true],  // D1
			[1, -3, true],  // D2
			[3, -3, true],  // D3

			// Control inputs (Enable, Write Enable)
			[5, -1, true],   // Enable
			[5, 1, true],   // Write Enable

			// Outputs (Q0-Q3)
			[-3, 3, false],  // Q0
			[-1, 3, false],  // Q1
			[1, 3, false],  // Q2
			[3, 3, false],  // Q3
		];

		initializeCircuit(pixel, pins, 9, 5);

		// Read data inputs
		let D = [
			checkPin(pixel, pins, 0),
			checkPin(pixel, pins, 1),
			checkPin(pixel, pins, 2),
			checkPin(pixel, pins, 3)
		];

		// Read control inputs
		let Enable = checkPin(pixel, pins, 4);
		let WriteEnable = checkPin(pixel, pins, 5);

		// Initialize the state if not already done
		if (pixel._state === undefined) {
			pixel._state = [false, false, false, false];
		}

		// Update the register state if WriteEnable is active
		if (WriteEnable && Enable) {
			pixel._state = [D[0], D[1], D[2], D[3]];
		}

		// Output the register state if Enable is active
		if (Enable) {
			setPin(pixel, pins, 6, pixel._state[0]); // Q0
			setPin(pixel, pins, 7, pixel._state[1]); // Q1
			setPin(pixel, pins, 8, pixel._state[2]); // Q2
			setPin(pixel, pins, 9, pixel._state[3]); // Q3
		} else {
			// Disable outputs if Enable is not active
			setPin(pixel, pins, 6, false); // Q0
			setPin(pixel, pins, 7, false); // Q1
			setPin(pixel, pins, 8, false); // Q2
			setPin(pixel, pins, 9, false); // Q3
		}
	}
};

elements.SR_latch_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			[0, -2, true], // Input: Set
			[0, 2, true],  // Input: Reset
			[2, 0, false], // Output
			[-2, 0, false] // Output
		];
		initializeCircuit(pixel, pins, 3, 3);

		if (checkPin(pixel, pins, 0)) {
			pixel._state = true;
		} // Set
		if (checkPin(pixel, pins, 1)) {
			pixel._state = false;
		} // Reset

		setPin(pixel, pins, 2, pixel._state);
		setPin(pixel, pins, 3, pixel._state);
	}
};

elements.T_flip_flop_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			[0, -2, true], // Input: Toggle (T)
			[2, 0, false], // Output (Q)
			[-2, 0, false] // Output (not Q) - Optional
		];

		initializeCircuit(pixel, pins, 3, 3);

		// Check the current state of the Toggle (T) input
		let T = checkPin(pixel, pins, 0);

		// Initialize the previous state of T if not already done
		if (pixel.prevT === undefined) {
			pixel.prevT = false;
		}

		// Detect the positive edge
		if (T && !pixel.prevT) {
			pixel._state = !pixel._state; // Toggle state on positive edge
		}

		// Update the previous state of T
		pixel.prevT = T;

		setPin(pixel, pins, 1, pixel._state);
		setPin(pixel, pins, 2, pixel._state);
	}
};

elements.D_latch_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			[0, -2, true], // Input: Data
			[2, 0, true],  // Input: Enable
			[0, 2, false], // Output
			[-2, 0, false] // Output
		];
		initializeCircuit(pixel, pins, 3, 3);

		let D = checkPin(pixel, pins, 0); // Data input
		let E = checkPin(pixel, pins, 1); // Enable input

		if (E) {
			pixel._state = D; // Q follows D when E is active
		}

		setPin(pixel, pins, 2, pixel._state);
		setPin(pixel, pins, 3, pixel._state);
	}
};

elements.D_flip_flop_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			[0, -2, true], // Input: Data
			[2, 0, true],  // Input: Enable
			[0, 2, false], // Output
			[-2, 0, false] // Output
		];

		initializeCircuit(pixel, pins, 3, 3);

		// Read inputs
		let D = checkPin(pixel, pins, 0); // Data input
		let C = checkPin(pixel, pins, 1); // Control input

		// Initialize previous state of control input if not already done
		if (pixel.prevC === undefined) {
			pixel.prevC = false;
		}

		// Previous state initialization
		if (pixel._state === undefined) {
			pixel._state = false;
		}

		// Update flip-flop state on positive edge of control input
		if (C && !pixel.prevC) {
			pixel._state = D; // Q follows D on positive edge of C
		}

		// Update the previous state of control input
		pixel.prevC = C;

		// Output the flip-flop state
		setPin(pixel, pins, 2, pixel._state);
		setPin(pixel, pins, 3, pixel._state);
	}
};

elements.four_bit_D_latch_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			// Data inputs (D0-D3)
			[-3, -2, true],  // D0
			[-1, -2, true],  // D1
			[1, -2, true],  // D2
			[3, -2, true],   // D3

			// Control input (C)
			[5, 0, true],   // Control (C)

			// Outputs (Q0-Q3)
			[-3, 2, false],  // Q0
			[-1, 2, false],  // Q1
			[1, 2, false],  // Q2
			[3, 2, false]	// Q3
		];

		initializeCircuit(pixel, pins, 9, 3);

		// Read inputs
		let D = [
			checkPin(pixel, pins, 0),
			checkPin(pixel, pins, 1),
			checkPin(pixel, pins, 2),
			checkPin(pixel, pins, 3)
		];

		let C = checkPin(pixel, pins, 4); // Control input

		// Previous state initialization
		if (pixel._state === undefined) {
			pixel._state = [false, false, false, false];
		}

		// Update latch state based on control input
		if (C) {
			pixel._state = [D[0], D[1], D[2], D[3]]; // Update latch state with data inputs
		}

		// Output the latch state
		setPin(pixel, pins, 5, pixel._state[0]); // Q0
		setPin(pixel, pins, 6, pixel._state[1]); // Q1
		setPin(pixel, pins, 7, pixel._state[2]); // Q2
		setPin(pixel, pins, 8, pixel._state[3]); // Q3
	}
};

elements.four_bit_D_flip_flop_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			// Data inputs (D0-D3)
			[-3, -2, true],  // D0
			[-1, -2, true],  // D1
			[1, -2, true],   // D2
			[3, -2, true],   // D3

			// Control input (C)
			[5, 0, true],   // Control (C)

			// Outputs (Q0-Q3)
			[-3, 2, false],  // Q0
			[-1, 2, false],  // Q1
			[1, 2, false],   // Q2
			[3, 2, false]	// Q3
		];

		initializeCircuit(pixel, pins, 9, 3);

		// Read inputs
		let D = [
			checkPin(pixel, pins, 0),
			checkPin(pixel, pins, 1),
			checkPin(pixel, pins, 2),
			checkPin(pixel, pins, 3)
		];

		let C = checkPin(pixel, pins, 4); // Control input

		// Initialize previous state of control input if not already done
		if (pixel.prevC === undefined) {
			pixel.prevC = false;
		}

		// Previous state initialization
		if (pixel._state === undefined) {
			pixel._state = [false, false, false, false];
		}

		// Update flip-flop state on positive edge of control input
		if (C && !pixel.prevC) {
			pixel._state = [D[0], D[1], D[2], D[3]]; // Update flip-flop state with data inputs
		}

		// Update the previous state of control input
		pixel.prevC = C;

		// Output the flip-flop state
		setPin(pixel, pins, 5, pixel._state[0]); // Q0
		setPin(pixel, pins, 6, pixel._state[1]); // Q1
		setPin(pixel, pins, 7, pixel._state[2]); // Q2
		setPin(pixel, pins, 8, pixel._state[3]); // Q3
	}
};

elements.four_bit_incrementer_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			// 4-bit number inputs (N0-N3)
			[3, -2, true],   // N3
			[1, -2, true],   // N2
			[-1, -2, true],  // N1
			[-3, -2, true],  // N0

			// Increment control input (INC)
			[-5, 0, true],   // Increment (INC)

			// Outputs (Q0-Q3)
			[3, 2, false],   // Q3
			[1, 2, false],   // Q2
			[-1, 2, false],  // Q1
			[-3, 2, false],  // Q0

			// Carry out
			[5, 0, false]	// Carry out (COUT)
		];

		initializeCircuit(pixel, pins, 9, 3);

		// Read inputs
		let N = [
			checkPin(pixel, pins, 0),
			checkPin(pixel, pins, 1),
			checkPin(pixel, pins, 2),
			checkPin(pixel, pins, 3)
		];

		let INC = checkPin(pixel, pins, 4); // Increment control input

		// Calculate the incremented value when control is active
		let carry = 0;
		let result = [];

		if (INC) {
			carry = 1; // Start with a carry of 1 to increment by 1
		}

		for (let i = 0; i < 4; i++) {
			let sum = N[i] + carry;
			result[i] = sum % 2; // Current bit sum
			carry = Math.floor(sum / 2); // Carry for next bit
		}

		// Output the incremented value and carry out
		setPin(pixel, pins, 5, result[0]); // Q0
		setPin(pixel, pins, 6, result[1]); // Q1
		setPin(pixel, pins, 7, result[2]); // Q2
		setPin(pixel, pins, 8, result[3]); // Q3
		setPin(pixel, pins, 9, carry);	 // Carry out (COUT)
	}
};

elements.four_bit_adder_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			// First 4-bit number (A)
			[-1, -2, true],  // A3
			[-3, -2, true],  // A2
			[-5, -2, true],  // A1
			[-7, -2, true],  // A0

			// Second 4-bit number (B)
			[7, -2, true],   // B3
			[5, -2, true],   // B2
			[3, -2, true],   // B1
			[1, -2, true],   // B0

			// Carry-in (C_in)
			[9, 0, true],   // Carry-in (C_in)

			// Output sum (S)
			[-1, 2, false],  // S3
			[-3, 2, false],  // S2
			[-5, 2, false],  // S1
			[-7, 2, false],  // S0
			[1, 2, false],   // Carry Out (C4)
		];

		initializeCircuit(pixel, pins, 17, 3);

		// Read inputs
		let A = [
			checkPin(pixel, pins, 0),
			checkPin(pixel, pins, 1),
			checkPin(pixel, pins, 2),
			checkPin(pixel, pins, 3)
		];

		let B = [
			checkPin(pixel, pins, 4),
			checkPin(pixel, pins, 5),
			checkPin(pixel, pins, 6),
			checkPin(pixel, pins, 7)
		];

		let C_in = checkPin(pixel, pins, 8); // Carry-in

		// Calculate the sum and carry
		let sum = [];
		let carry = C_in;

		for (let i = 0; i < 4; i++) {
			let bitSum = A[i] + B[i] + carry;
			sum[i] = bitSum % 2; // Current bit sum
			carry = Math.floor(bitSum / 2); // Carry for next bit
		}

		// Output the sum
		setPin(pixel, pins, 9, sum[0]);   // S0
		setPin(pixel, pins, 10, sum[1]);  // S1
		setPin(pixel, pins, 11, sum[2]);  // S2
		setPin(pixel, pins, 12, sum[3]);  // S3
		setPin(pixel, pins, 13, carry);   // Carry Out (C4)
	}
};

elements.four_bit_subtractor_circuit = {
	cc_stableTick: function (pixel) {
		let pins = [
			// First 4-bit number (A)
			[-1, -2, true],  // A3
			[-3, -2, true],  // A2
			[-5, -2, true],  // A1
			[-7, -2, true],  // A0

			// Second 4-bit number (B)
			[7, -2, true],   // B3
			[5, -2, true],   // B2
			[3, -2, true],   // B1
			[1, -2, true],   // B0

			// Borrow-in (B_in)
			[9, 0, true],   // Borrow-in (B_in)

			// Output difference (D)
			[-1, 2, false],  // D3
			[-3, 2, false],  // D2
			[-5, 2, false],  // D1
			[-7, 2, false],  // D0
			[1, 2, false],   // Borrow Out (B4)
		];

		initializeCircuit(pixel, pins, 17, 3);

		// Read inputs
		let A = [
			checkPin(pixel, pins, 0),
			checkPin(pixel, pins, 1),
			checkPin(pixel, pins, 2),
			checkPin(pixel, pins, 3)
		];

		let B = [
			checkPin(pixel, pins, 4),
			checkPin(pixel, pins, 5),
			checkPin(pixel, pins, 6),
			checkPin(pixel, pins, 7)
		];

		let B_in = checkPin(pixel, pins, 8); // Borrow-in

		// Calculate the difference and borrow
		let difference = [];
		let borrow = B_in;

		for (let i = 0; i < 4; i++) {
			let bitDifference = A[i] - B[i] - borrow;
			difference[i] = (bitDifference + 2) % 2; // Current bit difference
			borrow = bitDifference < 0 ? 1 : 0; // Borrow for next bit
		}

		// Output the difference
		setPin(pixel, pins, 9, difference[0]);   // D0
		setPin(pixel, pins, 10, difference[1]);  // D1
		setPin(pixel, pins, 11, difference[2]);  // D2
		setPin(pixel, pins, 12, difference[3]);  // D3
		setPin(pixel, pins, 13, borrow);		 // Borrow Out (B4)
	}
};

function general_clock(speed, s2) {
	return function (pixel) {
		for (let i = 0; i < adjacentCoords.length; i++) {
			let coord = adjacentCoords[i];
			let x = pixel.x + coord[0];
			let y = pixel.y + coord[1];
			if (!isEmpty(x, y, true)) {
				if (pixelMap[x][y].element === "logic_wire") {
					if (pixelTicks % speed < s2) {
						pixelMap[x][y].lstate = 2
						pixelMap[x][y].color = pixelColorPick(pixelMap[x][y], "#ffe49c")
					} else {
						pixelMap[x][y].lstate = -2
						pixelMap[x][y].color = pixelColorPick(pixelMap[x][y], "#3d4d2c")
					}
				}
			}
		}
	};
}

elements.slow_clock = {
	color: "#BB66BB",
	cc_stableTick: general_clock(64, 32),
}

elements.medium_clock = {
	color: "#DD88DD",
	cc_stableTick: general_clock(32, 16),
}

elements.fast_clock = {
	color: "#FFAAFF",
	cc_stableTick: general_clock(16, 8),
}

elements.very_fast_clock = {
	color: "#FFCCFF",
	cc_stableTick: general_clock(8, 4),
}

elements.custom_RGB_led = {
	cc_stableTick: function (pixel) {
		let pins = [
			// RGB values
			[-2, -1, true], // R0
			[-2, 1, true],  // R1
			[1, -2, true],  // G0
			[-1, -2, true], // G1
			[2, -1, true],  // B0
			[2, 1, true],   // B1
		];

		initializeCircuit(pixel, pins, 3, 3);

		// Read inputs
		let l = [
			checkPin(pixel, pins, 0),
			checkPin(pixel, pins, 1),
			checkPin(pixel, pins, 2),
			checkPin(pixel, pins, 3),
			checkPin(pixel, pins, 4),
			checkPin(pixel, pins, 5)
		];

		let color = {color: cc_scaleList([(l[0] * 2) + l[1], (l[2] * 2) + l[3], (l[4] * 2) + l[5]], 255 / 3 * 10)};
		if (color.color.some(value => isNaN(value)))
			return;

		if (isLightmapEnabled) {
			lightmap[Math.floor(pixel.y / lightmapScale)][Math.floor(pixel.x / lightmapScale)] = color;
		}
		let scaledColor = cc_scaleList(color.color, 0.1);

//		pixelMap[pixel.x][pixel.y].color = scaledColor;
		for (let dx = -1; dx <= 1; dx++) {
			for (let dy = -1; dy <= 1; dy++) {
				let nx = pixel.x + dx;
				let ny = pixel.y + dy;

				if (pixelMap[nx] && pixelMap[nx][ny]) {
					let n = ((2 - (Math.abs(dx) + Math.abs(dy))) + 4) / 6;
					pixelMap[nx][ny].color = cc_arrayToRgbString(cc_scaleList(scaledColor, n));
				}
			}
		}
	}
}

let addDisplayCallback = function (pixel, pins, w, h) {
	for (let y = 1; y < h - 1; y++) {
		for (let x = 1; x < w - 1; x++) {
			let px = pixel.x + x;
			let py = pixel.y + y;
			if (!(0 <= px && px < width && 0 <= py && py < height)) {
				continue;
			}

			deletePixel(px, py);
			createPixel("displayPixel", px, py);
			pixelMap[px][py].color = "rgb(16, 24, 32)";
		}
	}
}

elements.simple_seven_segment_display = {
	cc_stableTick: function (pixel) {
		let pins = [
			// Data inputs (D0-D3)
			[-1, 7, true],
			[-1, 5, true],
			[-1, 3, true],
			[-1, 1, true],
		];

		initializeCircuit(pixel, pins, 5, 9, false, pixel.circuitRotation, addDisplayCallback);

		// Read inputs
		let D = [
			checkPin(pixel, pins, 0),
			checkPin(pixel, pins, 1),
			checkPin(pixel, pins, 2),
			checkPin(pixel, pins, 3)
		];

		let hexNumber = (D[3] * 8) + (D[2] * 4) + (D[1] * 2) + (D[0] * 1);
		if (isNaN(hexNumber)) {
			return;
		}

		// Draw the number
		let hexGrid = createSevenSegmentGrid(hexNumber);
		for (let y = 2; y <= 6; y++) {
			for (let x = 1; x <= 3; x++) {
				let px = pixel.x + x;
				let py = pixel.y + y;

				if (pixelMap[px][py] && pixelMap[px][py].element === "displayPixel") {
					if (hexGrid[y - 2][x - 1]) {
						pixelMap[px][py].color = "rgb(16, 230, 120)";
					} else {
						pixelMap[px][py].color = "rgb(16, 24, 32)";
					}
				}
			}
		}
	}
};

elements.simple_double_seven_segment_display = {
	cc_stableTick: function (pixel) {
		let pins = [
			// Data inputs (D0-D3)
			[-1, 7, true],
			[-1, 5, true],
			[-1, 3, true],
			[-1, 1, true],

			[7, -1, true],
			[5, -1, true],
			[3, -1, true],
			[1, -1, true],
		];

		initializeCircuit(pixel, pins, 9, 9, false, pixel.circuitRotation, addDisplayCallback);

		// Read inputs
		let D = [
			checkPin(pixel, pins, 0),
			checkPin(pixel, pins, 1),
			checkPin(pixel, pins, 2),
			checkPin(pixel, pins, 3),
			checkPin(pixel, pins, 4),
			checkPin(pixel, pins, 5),
			checkPin(pixel, pins, 6),
			checkPin(pixel, pins, 7)
		];

		let hexNumber = (D[3] * 8) + (D[2] * 4) + (D[1] * 2) + (D[0] * 1);
		let hexNumber2 = (D[7] * 8) + (D[6] * 4) + (D[5] * 2) + (D[4] * 1);
		if (isNaN(hexNumber) || isNaN(hexNumber2)) {
			return;
		}

		// Draw the number
		let hexGrid = createSevenSegmentGrid(hexNumber);
		for (let y = 2; y <= 6; y++) {
			for (let x = 1; x <= 3; x++) {
				let px = pixel.x + x;
				let py = pixel.y + y;

				if (pixelMap[px][py] && pixelMap[px][py].element === "displayPixel") {
					if (hexGrid[y - 2][x - 1]) {
						pixelMap[px][py].color = "rgb(16, 230, 120)";
					} else {
						pixelMap[px][py].color = "rgb(16, 24, 32)";
					}
				}
			}
		}

		let hexGrid2 = createSevenSegmentGrid(hexNumber2);
		for (let y = 2; y <= 6; y++) {
			for (let x = 5; x <= 7; x++) {
				let px = pixel.x + x;
				let py = pixel.y + y;

				if (pixelMap[px][py] && pixelMap[px][py].element === "displayPixel") {
					if (hexGrid2[y - 2][x - 5]) {
						pixelMap[px][py].color = "rgb(16, 230, 120)";
					} else {
						pixelMap[px][py].color = "rgb(16, 24, 32)";
					}
				}
			}
		}
	}
};

function malfunction_chip(pixel) {
	let emptySpaces = [];

	// Search in a 5x5 neighborhood for empty spaces
	for (let dy = -2; dy <= 2; dy++) {
		for (let dx = -2; dx <= 2; dx++) {
			let neighborX = pixel.x + dx;
			let neighborY = pixel.y + dy;
			if (pixelMap[neighborX] && pixelMap[neighborX][neighborY] === undefined) {
				emptySpaces.push({x: neighborX, y: neighborY});
			}
		}
	}

	if (emptySpaces.length > 0) {
		// Randomly select one of the empty spaces
		let randomSpace = emptySpaces[Math.floor(Math.random() * emptySpaces.length)];

		// Determine what to spawn based on probability
		let rand = Math.random();
		if (rand < 0.7) {
			createPixel("electric", randomSpace.x, randomSpace.y);
		} else if (rand < 0.99) {
			createPixel("fire", randomSpace.x, randomSpace.y);
		} else {
			createPixel("explosion", randomSpace.x, randomSpace.y);
		}
	}
}

elements.displayPixel = {
	color: "#000000",
	category: "logic",
	state: "solid",
	behavior: behaviors.WALL,
	tick: function (pixel) {
		if (pixel.start === pixelTicks) {
			pixel.color = "rgb(16, 24, 32)";
		}

		if (isLightmapEnabled && pixel.color) {
			let x = Math.floor(pixel.x / lightmapScale);
			let y = Math.floor(pixel.y / lightmapScale);
			lightmap[y][x] = {color: scaleList(rgbToArray(pixel.color), 0.2)};
		}
	}
};

elements.circuit_material = {
	color: "#444444",
	category: "logic",
	state: "solid",
	behavior: behaviors.WALL,
	hoverStat: function (pixel) {
		return `Circuit: ${pixel.corePosition}`;
	},
	cc_stableTick: function (pixel) {
		// Make it that extreme temperatures can stop the chip from working (for realism)
		if (Math.random() < 0.003 && cc_heat_emit_setting.value) {  // Chance to check for temperature or nearby particles
			// Check temperature
			if (pixel.temp > 120) {
				// Replace the circuit core with lead if overheating
				if (pixel.corePosition && Math.random() < (0.00015) * (pixel.temp - 120)) {
					let corePos = pixel.corePosition;
					if (pixelMap[corePos.x] && pixelMap[corePos.x][corePos.y]) {
						deletePixel(corePos.x, corePos.y);
						createPixel("lead", corePos.x, corePos.y);
					}
				}

				// Randomly trigger malfunction if overheating
				if (Math.random() < 0.001 * (pixel.temp - 120)) {
					malfunction_chip(pixel);
				}

				// Break the circuit material itself if overheating
				if (Math.random() < 0.001 * (pixel.temp - 120)) {
					let px = pixel.x;
					let py = pixel.y;
					deletePixel(px, py);
					if (Math.random() < 0.5) {
						createPixel("lead", px, py);
					}
				}
			}
		}
	}
};


elements.input_pin = {
	color: "#DDAA33",
	category: "logic",
	state: "solid",
	active: false,
	stateHigh: "lead",
	tempHigh: 570,
	behavior: behaviors.WALL,
	cc_stableTick: function (pixel) {
		pixel.active = false;
		let neighbors = getNeighbors(pixel);
		for (let i = 0; i < neighbors.length; i++) {
			let neighbor = neighbors[i];

			if (neighbor.charge > 0 || neighbor.lstate === 2 || neighbor.active) {
				pixel.active = true;
			}
		}
	}
};

elements.output_pin = {
	color: "#AAAAAA",
	category: "logic",
	state: "solid",
	active: false,
	stateHigh: "lead",
	tempHigh: 570,
	behavior: behaviors.WALL,
	cc_stableTick: function (pixel) {
		let neighbors = getNeighbors(pixel);
		for (let i = 0; i < neighbors.length; i++) {
			let neighbor = neighbors[i];

			// Check if it's a wire
			if (elements[neighbor.element].conduct > 0 && pixel.active) {
				neighbor.charge = 1;
			}

			// Check if it's a logic wire (logicgates.js)
			if (neighbor.lstate !== undefined) {
				if (pixel.active) {
					neighbor.lstate = 2;
					neighbor.color = pixelColorPick(neighbor, "#ffe49c");
				} else {
					neighbor.lstate = -2;
					neighbor.color = pixelColorPick(neighbor, "#3d4d2c");
				}
			}
		}
	}
};

elements.logic_corrupt = {
	color: "#DD33DD",
	category: "logic",
	tool: function (pixel) {
		if (pixel.element === "logic_wire") {
			if (Math.random() < 0.01) {
				if (Math.random() < 0.5) {
					pixel.lstate = 2;
					pixel.color = pixelColorPick(pixel, "#ffe49c");
				} else {
					pixel.lstate = -2;
					pixel.color = pixelColorPick(pixel, "#3d4d2c");
				}
			}
		}
	},
	excludeRandom: true,
}

elements.logic_corrupter_machine = {
	color: "#DD33DD",
	category: "logic",
	cc_stableTick: function (pixel) {
		let radius = 10
		for (let y = pixel.y - radius; y < pixel.y + radius; y++) {
			for (let x = pixel.x - radius; x < pixel.x + radius; x++) {
				if (!isEmpty(x, y, true)) {
					if (pixelMap[x][y].element === "logic_wire" && Math.random() < Math.min(Math.max((pixel.temp + 273) / 473, 0), 1) * 0.005) {
						if (Math.random() < 0.5) {
							pixelMap[x][y].lstate = 2
							pixelMap[x][y].color = pixelColorPick(pixelMap[x][y], "#ffe49c")
						} else {
							pixelMap[x][y].lstate = -2
							pixelMap[x][y].color = pixelColorPick(pixelMap[x][y], "#3d4d2c")
						}
					}
				}
			}
		}
	},
}

// Add link to documentation
let tutorialLink = document.createElement("a");
tutorialLink.textContent = "CircuitCore Tutorial";
tutorialLink.href = "https://redbirdly.github.io/circuitcore_tutorial.html";
tutorialLink.target = "_blank";
tutorialLink.style.color = "#33FF66";
tutorialLink.style.fontSize = "14px";
document.body.appendChild(tutorialLink);

// cc_ is circuit core prefix
const cc_BROWN = "#773317";
const cc_RED = "#DD3322";
const cc_ORANGE = "#DD8833";
const cc_YELLOW = "#DDCC44";
const cc_LIME = "#77DD44";
const cc_GREEN = "#33BB44";
const cc_BLUE = "#224499";
const cc_LIGHT_BLUE = "#77CCFF";
const cc_LAVENDER = "#AA88EE";
const cc_WHITE = "#DDDDDD";

let circuits = [
	// Misc and I/O: brown
	{circuit: elements.four_bit_selector_circuit, color: cc_BROWN, size: [17, 3, true]},
	{circuit: elements.four_bit_enabler_circuit, color: cc_BROWN, size: [9, 3, true]},
	{circuit: elements.randomizer, color: cc_BROWN},
	{circuit: elements.four_bit_randomizer_circuit, color: cc_BROWN, size: [9, 3, true]},
	{circuit: elements.two_bit_reverser_circuit, color: cc_BROWN, size: [5, 3, true]},
	{circuit: elements.reverser_circuit, color: cc_BROWN},
	// ROM/RAM: red
//	{ circuit: elements.ROM_circuit, color: cc_RED, size: [18, 18, false] },
	// Encoders and de-multiplexers: orange
	{circuit: elements.two_to_one_encoder_circuit, color: cc_ORANGE, size: [5, 3, true]},
	{circuit: elements.four_to_two_encoder_circuit, color: cc_ORANGE, size: [9, 5, true]},
	{circuit: elements.eight_to_three_encoder_circuit, color: cc_ORANGE, size: [17, 7, true]},
	{circuit: elements.sixteen_to_four_encoder_circuit, color: cc_ORANGE, size: [33, 9, true]},

	{circuit: elements.one_to_two_demultiplexer_circuit, color: cc_ORANGE, size: [3, 5, true]},
	{circuit: elements.one_to_four_demultiplexer_circuit, color: cc_ORANGE, size: [3, 9, true]},
	{circuit: elements.one_to_eight_demultiplexer_circuit, color: cc_ORANGE, size: [3, 17, true]},
	{circuit: elements.one_to_sixteen_demultiplexer_circuit, color: cc_ORANGE, size: [3, 33, true]},
	// Decoders and multiplexers: yellow
	{circuit: elements.one_to_two_decoder_circuit, color: cc_YELLOW, size: [3, 5, true]},
	{circuit: elements.two_to_four_decoder_circuit, color: cc_YELLOW, size: [5, 9, true]},
	{circuit: elements.three_to_eight_decoder_circuit, color: cc_YELLOW, size: [7, 17, true]},
	{circuit: elements.four_to_sixteen_decoder_circuit, color: cc_YELLOW, size: [9, 33, true]},

	{circuit: elements.two_to_one_multiplexer_circuit, color: cc_YELLOW, size: [3, 5, true]},
	{circuit: elements.four_to_one_multiplexer_circuit, color: cc_YELLOW, size: [5, 9, true]},
	{circuit: elements.eight_to_one_multiplexer_circuit, color: cc_YELLOW, size: [7, 17, true]},
	{circuit: elements.sixteen_to_one_multiplexer_circuit, color: cc_YELLOW, size: [9, 33, true]},
	// Program counter and shift registers: lime
	{circuit: elements.four_bit_PISO_shift_register_circuit, color: cc_LIME, size: [9, 5, true]},
	{circuit: elements.four_bit_SIPO_shift_register_circuit, color: cc_LIME, size: [3, 9, true]},
	{circuit: elements.four_bit_program_counter_circuit, color: cc_LIME, size: [9, 5, true]},
	// Registers: green
	{circuit: elements.four_bit_register_circuit, color: cc_GREEN, size: [9, 5, true]},
	// Latches and flip-flops: light blue
	{circuit: elements.SR_latch_circuit, color: cc_LIGHT_BLUE, size: [3, 3, true]},
	{circuit: elements.T_flip_flop_circuit, color: cc_LIGHT_BLUE, size: [3, 3, true]},
	{circuit: elements.D_latch_circuit, color: cc_LIGHT_BLUE, size: [3, 3, true]},
	{circuit: elements.D_flip_flop_circuit, color: cc_LIGHT_BLUE, size: [3, 3, true]},
	{circuit: elements.four_bit_D_latch_circuit, color: cc_LIGHT_BLUE, size: [9, 3, true]},
	{circuit: elements.four_bit_D_flip_flop_circuit, color: cc_LIGHT_BLUE, size: [9, 3, true]},
	// Addition/subtraction arithmetic: blue
	{circuit: elements.four_bit_adder_circuit, color: cc_BLUE, size: [17, 3, true]},
	{circuit: elements.four_bit_subtractor_circuit, color: cc_BLUE, size: [17, 3, true]},
	{circuit: elements.four_bit_incrementer_circuit, color: cc_BLUE, size: [9, 3, true]},
	// Complex circuits: lavender

	// Clocks: pink
	{circuit: elements.slow_clock},
	{circuit: elements.medium_clock},
	{circuit: elements.fast_clock},
	{circuit: elements.very_fast_clock},
	// Displays/visual circuits: white
	{circuit: elements.simple_seven_segment_display, color: cc_WHITE, size: [5, 9, false]},
	{circuit: elements.simple_double_seven_segment_display, color: cc_WHITE, size: [9, 9, false]},
	{circuit: elements.custom_RGB_led, color: cc_WHITE, size: [3, 3, true]},
];

circuits.forEach(circuitInfo => {
	if (circuitInfo.color) {
		circuitInfo.circuit.color = circuitInfo.color;
	}
	circuitInfo.circuit.category = "logic";
	circuitInfo.circuit.maxSize = 1;
	circuitInfo.circuit.behavior = behaviors.WALL;
	circuitInfo.circuit.state = "solid";
	circuitInfo.circuit.isCircuitCore = true;
	circuitInfo.circuit.previewSize = circuitInfo.size;

	// Exclude circuits without a frame
	if (circuitInfo.size) {
		let previousCircuitTick = circuitInfo.circuit.cc_stableTick;
		circuitInfo.circuit.cc_stableTick = function (pixel) {
			previousCircuitTick(pixel);

			// Don't constantly check
			if (Math.random() < 0.1) {
				// If there aren't 4 neighboring circuit_material elements then remove the circuit's core
				let neighbors = getNeighbors(pixel);
				let circuitMaterialCount = 0;
				for (let i = 0; i < neighbors.length; i++) {
					if (neighbors[i].element === "circuit_material") {
						circuitMaterialCount++;
					}
				}

				if (circuitMaterialCount < 2) {
					deletePixel(pixel.x, pixel.y);
				}

				// Check if circuit overheating is enabled
				if (cc_heat_emit_setting.value) {
					pixel.temp += Math.random() * 0.7;
				}
			}
		}
	}
});

let circuitRotation = 0;
document.addEventListener('keydown', function (event) {
	if (event.key === 'ArrowUp') {
		circuitRotation = (circuitRotation + 90) % 360;
		logMessage('CircuitRotation changed to ' + circuitRotation);
	}
});

function drawCircuitExtras(ctx) {
	if (elements[currentElement].isCircuitCore && elements[currentElement].previewSize) {
		let circuitWidth = elements[currentElement].previewSize[0];
		let circuitHeight = elements[currentElement].previewSize[1];
		let centered = elements[currentElement].previewSize[2];
		let rotation = circuitRotation;

		let startX = 0;
		let startY = 0;
		let endX = circuitWidth - 1;
		let endY = circuitHeight - 1;

		if (centered) {
			startX = -Math.floor(circuitWidth / 2);
			startY = -Math.floor(circuitHeight / 2);
			endX = Math.floor(circuitWidth / 2);
			endY = Math.floor(circuitHeight / 2);
		}

		for (let y = startY; y <= endY; y++) {
			for (let x = startX; x <= endX; x++) {
//				if (!(0 <= x && x < width && 0 <= y && y < height)) {continue;}

				let [rx, ry] = rotateCoordinateAroundOrigin(x, y, rotation);
				let px = mousePos.x + rx;
				let py = mousePos.y + ry;

				ctx.fillStyle = "rgba(255, 255, 255, 0.1)";
				if ((rotation !== 0 && !centered) || (0 <= px && px < width && 0 <= py && py < height) && pixelMap[px][py]) {
					ctx.fillStyle = "rgba(255, 0, 0, 0.3)";
				}

				ctx.fillRect(px * pixelSize, py * pixelSize, pixelSize, pixelSize);
			}
		}
	}
}

function runLogicTick() {
	for (let i = 0; i < currentPixels.length; i++) {
		const pixel = currentPixels[i];
		const elementData = elements[pixel.element];

		if (elementData.cc_stableTick) {
			elementData.cc_stableTick(pixel);
		}
	}
}

function stabilizeLogicGates() {
	let logicgatesElements = ["output", "logic_wire", "not_gate", "and_gate", "xor_gate", "or_gate", "nand_gate", "nor_gate", "nxor_gate", "E2L_lever", "E2L_button", "L2E_constant", "logic_shock", "logic_unshock"]

	for (let i = 0; i < logicgatesElements.length; i++) {
		elements[logicgatesElements[i]].cc_stableTick = elements[logicgatesElements[i]].tick;
		elements[logicgatesElements[i]].tick = null;
	}
}

// Hooks
renderPostPixel(drawCircuitExtras);
runEveryTick(runLogicTick);

if (cc_stable_tick_setting.value)
	runAfterLoad(stabilizeLogicGates);