Mater Cars Major Image Effect Generator

function processImage(originalImg, textTop = "MATER", textBottom = "MAJOR", rustLevel = "0.7") {
    // 1. Setup Canvas
    const canvas = document.createElement('canvas');
    const width = originalImg.width;
    const height = originalImg.height;
    canvas.width = width;
    canvas.height = height;
    const ctx = canvas.getContext('2d');

    // 2. Draw original image
    ctx.drawImage(originalImg, 0, 0, width, height);

    const intensity = Math.min(1, Math.max(0, parseFloat(rustLevel) || 0.7));
    
    // 3. Apply Mater Rust/Brown Color Effect
    ctx.globalCompositeOperation = 'multiply';
    ctx.fillStyle = `rgba(180, 80, 30, ${intensity})`; // Rusty orange
    ctx.fillRect(0, 0, width, height);

    ctx.globalCompositeOperation = 'overlay';
    ctx.fillStyle = `rgba(139, 69, 19, ${intensity * 0.8})`; // Deep saddle brown
    ctx.fillRect(0, 0, width, height);
    ctx.globalCompositeOperation = 'source-over';

    // 4. Generate Procedural Rust/Grime Texture Layer
    const noiseCanvas = document.createElement('canvas');
    noiseCanvas.width = 100;
    noiseCanvas.height = 100;
    const nCtx = noiseCanvas.getContext('2d');
    const nData = nCtx.createImageData(100, 100);
    for (let i = 0; i < nData.data.length; i += 4) {
        nData.data[i] = 139;     // R
        nData.data[i+1] = 69;    // G
        nData.data[i+2] = 19;    // B
        nData.data[i+3] = Math.random() * 150 * intensity; // Random alpha for gritty look
    }
    nCtx.putImageData(nData, 0, 0);
    
    ctx.globalCompositeOperation = 'overlay';
    const pattern = ctx.createPattern(noiseCanvas, 'repeat');
    if (pattern) {
        ctx.fillStyle = pattern;
        ctx.fillRect(0, 0, width, height);
    }
    ctx.globalCompositeOperation = 'source-over';

    // Proportional scaling for drawn features
    const scale = Math.min(width, height) / 500;

    // 5. Draw Mater's Windshield & Eyes at the top
    ctx.save();
    ctx.translate(width * 0.5, 0);
    ctx.scale(scale, scale);

    // Windshield frame
    ctx.fillStyle = '#6E3A07'; 
    ctx.beginPath();
    ctx.moveTo(-150, 0);
    ctx.lineTo(150, 0);
    ctx.lineTo(170, 120);
    ctx.lineTo(-170, 120);
    ctx.fill();

    // Glass
    ctx.fillStyle = '#87CEEB'; 
    ctx.beginPath();
    ctx.moveTo(-140, 0);
    ctx.lineTo(-15, 0);
    ctx.lineTo(-15, 95);
    ctx.lineTo(-155, 95);
    ctx.fill();

    ctx.beginPath();
    ctx.moveTo(15, 0);
    ctx.lineTo(140, 0);
    ctx.lineTo(155, 95);
    ctx.lineTo(15, 95);
    ctx.fill();

    // Eyelids (sleepy/rusty look)
    ctx.fillStyle = '#9b5b22';
    ctx.beginPath();
    ctx.moveTo(-140, 0);
    ctx.lineTo(-15, 0);
    ctx.lineTo(-15, 30);
    ctx.lineTo(-150, 40);
    ctx.fill();
    
    ctx.beginPath();
    ctx.moveTo(15, 0);
    ctx.lineTo(140, 0);
    ctx.lineTo(150, 40);
    ctx.lineTo(15, 30);
    ctx.fill();

    // Eyes
    function drawEye(x, y) {
        // White part
        ctx.fillStyle = '#fff';
        ctx.beginPath();
        ctx.arc(x, y, 28, 0, Math.PI * 2);
        ctx.fill();
        
        // Green Iris
        ctx.fillStyle = '#556B2F'; 
        ctx.beginPath();
        ctx.arc(x, y, 14, 0, Math.PI * 2);
        ctx.fill();
        
        // Pupil
        ctx.fillStyle = '#000';
        ctx.beginPath();
        ctx.arc(x, y, 7, 0, Math.PI * 2);
        ctx.fill();
    }
    drawEye(-60, 60);
    drawEye(60, 60);
    ctx.restore();

    // 6. Draw Tow Hook hanging down from the left
    ctx.save();
    ctx.translate(width * 0.1, 0); 
    ctx.scale(scale, scale);

    // Cable
    ctx.strokeStyle = '#222';
    ctx.lineWidth = 12;
    ctx.beginPath();
    ctx.moveTo(0, 0);
    ctx.lineTo(0, 250);
    ctx.stroke();

    // Hook body
    ctx.strokeStyle = '#333';
    ctx.lineCap = 'round';
    ctx.lineJoin = 'round';
    ctx.lineWidth = 18;
    ctx.beginPath();
    ctx.moveTo(0, 250);
    ctx.lineTo(0, 290);
    ctx.bezierCurveTo(50, 320, 80, 260, 40, 230);
    ctx.stroke();

    // Hook TIP
    ctx.lineWidth = 8;
    ctx.beginPath();
    ctx.moveTo(40, 230);
    ctx.lineTo(20, 248);
    ctx.stroke();
    ctx.restore();

    // 7. Draw Buck Teeth at the bottom
    ctx.save();
    ctx.translate(width * 0.5, height);
    ctx.scale(scale, scale);

    ctx.fillStyle = '#e8e8d8'; // slightly yellowed white
    ctx.strokeStyle = '#222';
    ctx.lineWidth = 5;

    // Left tooth
    ctx.rotate(-0.06);
    ctx.fillRect(-45, -100, 40, 100);
    ctx.strokeRect(-45, -100, 40, 100);
    ctx.rotate(0.06);

    // Right tooth
    ctx.rotate(0.1);
    ctx.fillRect(10, -90, 35, 90);
    ctx.strokeRect(10, -90, 35, 90);
    ctx.restore();

    // 8. Add Meme Overlay Text (Major)
    ctx.textAlign = 'center';
    ctx.textBaseline = 'middle';
    ctx.font = `900 ${scale * 80}px Impact, sans-serif`;
    ctx.lineWidth = scale * 8;
    ctx.strokeStyle = 'black';
    ctx.fillStyle = 'white';

    if (textTop) {
        ctx.strokeText(textTop, width / 2, scale * 170);
        ctx.fillText(textTop, width / 2, scale * 170);
    }
    
    if (textBottom) {
        // Draw slightly above the teeth
        ctx.strokeText(textBottom, width / 2, height - (scale * 140));
        ctx.fillText(textBottom, width / 2, height - (scale * 140));
    }

    return canvas;
}