Update MeshLoader.java

import java.io.FileReader;

import java.io.IOException;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

public class MeshLoader {

    public static VertexBufferObject loadMeshFromFile(String filePath) throws IOException {

        String line;

        List<Vector3D> vertexList = new ArrayList<>();

        List<Integer> indexList = new ArrayList<>();

        int currentIndex = 0;

        Map<Vector3D, Integer> vertexMap = new HashMap<>();

        int index = 0;

        while ((line = reader.readLine()) != null) {

            // 解析一行中的三个顶点坐标

            String[] tokens = line.split("]\\s*\\[");

            for (String token : tokens) {

                String cleanedToken = token.replace("[", "").replace("]", "");

                    float x = Float.parseFloat(coords[0]);

                    float y = Float.parseFloat(coords[1]);

                    float z = Float.parseFloat(coords[2]);

                    vertexList.add(new Vector3D(x, y, z));

                    indexList.add(currentIndex++);

                    Vector3D newVertex = new Vector3D(x, y, z);

                    if (!vertexMap.containsKey(newVertex)) {

                        vertexList.add(newVertex);

                        vertexMap.put(newVertex, index);

                        indexList.add(index);

                        index++;

                    } else {

                        indexList.add(vertexMap.get(newVertex));

                    }

                }

            }

        }

        reader.close();

        // 转换列表为数组

        Vector3D[] vertices = vertexList.toArray(new Vector3D[0]);

        int[] indices = indexList.stream().mapToInt(i -> i).toArray();

        return new VertexBufferObject(vertices, indices);

    }

    public static void main(String[] args) {

        try {

            VertexBufferObject vbo = loadMeshFromFile("path/to/your/file.txt");

            // 在这里使用vbo，例如渲染等

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

}