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<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>3D Card Game with Interactive Drag and Drop</title>
    <style>
        body { margin: 0; }
        canvas { display: block; }
    </style>
    <script src="https://cdn.jsdelivr.net/npm/[email protected]/build/three.min.js"></script>
</head>
<body>
    <canvas id="gameCanvas"></canvas>

    <script>
        var scene = new THREE.Scene();
        var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
        camera.position.set(0, 20, 50);
        var renderer = new THREE.WebGLRenderer({ canvas: document.getElementById('gameCanvas') });
        renderer.setSize(window.innerWidth, window.innerHeight);
        // Lighting
        var ambientLight = new THREE.AmbientLight(0x404040); // Soft white light
        scene.add(ambientLight);
        var directionalLight = new THREE.DirectionalLight(0xffffff, 0.5);
        directionalLight.position.set(0, 1, 1);
        scene.add(directionalLight);
        // Table
        var tableGeometry = new THREE.BoxGeometry(100, 1, 100);
        var tableMaterial = new THREE.MeshLambertMaterial({ color: 0x8B4513 });
        var table = new THREE.Mesh(tableGeometry, tableMaterial);
        table.position.set(0, -0.5, 0);
        scene.add(table);
        // Cards
        var cardGeometry = new THREE.BoxGeometry(5, 0.1, 7);
        var cards = [];
        // Generate and place cards
        for (let i = 0; i < 52; i++) {
            var cardMaterial = new THREE.MeshLambertMaterial({ color: Math.random() * 0xffffff });
            var card = new THREE.Mesh(cardGeometry, cardMaterial);
            card.position.set(Math.random() * 10 - 5, 0.1 * i, Math.random() * 10 - 5);
            scene.add(card);
            cards.push(card);
        }
        var raycaster = new THREE.Raycaster();
        var mouse = new THREE.Vector2();
        var selectedCard = null;
        var offset = new THREE.Vector3();
        function onMouseMove(event) {
            mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
            mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;
            if (selectedCard) {
                raycaster.setFromCamera(mouse, camera);
                var intersects = raycaster.intersectObject(table, true);
                if (intersects.length > 0) {
                    var intersect = intersects[0];
                    selectedCard.position.copy(intersect.point.add(offset));
                }
            }
        }
        function onMouseDown(event) {
            mouse.x = (event.clientX / window.innerWidth) * 2 - 1;
            mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;
            raycaster.setFromCamera(mouse, camera);
            var intersects = raycaster.intersectObjects(cards, true);
            if (intersects.length > 0) {
                selectedCard = intersects[0].object;
                var intersects = raycaster.intersectObject(table, true);
                if (intersects.length > 0) {
                    var intersect = intersects[0];
                    offset.subVectors(selectedCard.position, intersect.point);
                }
            }
        }
        function onMouseUp(event) {
            selectedCard = null;
        }
        window.addEventListener('mousemove', onMouseMove, false);
        window.addEventListener('mousedown', onMouseDown, false);
        window.addEventListener('mouseup', onMouseUp, false);
        function animate() {
            requestAnimationFrame(animate);
            renderer.render(scene, camera);
        }
        animate();
    </script>
</body>
</html>