readfile Javadocs

import java.util.*;

import java.util.Random;

/**

 * readFile class utilized to parse through commands to obtain the information of the figure

 */

public class readFile {

    public static String[] path = new String[3];

    final private static double[] speed = new double[3];

    private static ArrayList<Integer> faces = new ArrayList<>();

    public static AdjacencyMatrix adjMatrix;

    public static void parseCommand(String[] args) {

        // parses command of up to 3 shapes, each with own path, init speed, and init dir

        // will just match these attributes up in the order that they appear

    /**

     * Parses an array of command-line arguments to extract image paths, speeds, and directional vectors.

     * This method expects arguments in specific formats:

     *

     * <ul>

     *  <li>{@code --image} followed by a string representing the path to an image.</li>

     *  <li>{@code --speed} followed by a double value representing the speed.</li>

     *  <li>{@code --dir} followed by three comma-separated double values representing a directional vector.</li>

     * </ul>

     *

     * @param args args the command-line arguments to be parsed.

     */

    public static void parseCommand(String[] args) {

        for (String arg : args) {

            if (Objects.equals(arg, "--image")) {

        }

    }

    /**

     * Reads vertex data from a specified file and populates global hash structures

     * to map each vertex to its adjacent vertices and indices. The file should contain

     * descriptions of triangles, with each line representing a triangle. Vertices are

     * expected to be in the format "[x,y,z]", separated by spaces.

     *

     * @param currPath the path to the file containing the triangles' vertex data.

     * @throws FileNotFoundException if the file at {@code currPath} does not exist or cannot be read.

     */

    public static void makeVertexHash(String currPath) {

        try

        {

            myReader.close();

        }

        catch (FileNotFoundException exception)

        {

        catch (FileNotFoundException exception) {

        }

    }

    /**

     * Constructs an adjacency matrix for a graph using pre-existing vertex and adjacency information.

     * This method initializes a new {@link AdjacencyMatrix} instance and populates it with edges based

     * on the adjacency information stored in a global structure.

     * <p>

     * It iterates over all vertices, represented by their indices, and for each vertex, it retrieves its

     * corresponding {@link VertexKey}. It then iterates over all vertices adjacent to the current vertex,

     * adding an edge to the adjacency matrix for each adjacency. This process constructs a complete

     * representation of the graph's connectivity in matrix form.

     */

    public static void makeMatrix() {

        adjMatrix = new AdjacencyMatrix(vertexCount);

        for (int i = 0; i < vertexCount; i++) {

            }

        }

    }

    /**

     * Retrieves all vertices from the graph, scaled by a factor of 3, and returns them as a flat array.

     * <p>

     * This method constructs an array of floating-point numbers, where each set of three consecutive

     * entries represents the x, y, and z coordinates of a vertex, respectively, scaled by a factor of 3.

     * The vertices are retrieved in the order determined by their indices in the {@code indexToVertex} mapping.

     * <p>

     * Note: The method assumes that each {@link VertexKey} object's {@code get()} method returns an

     * array of three floats representing the x, y, and z coordinates of the vertex.

     *

     * @return A flat array of floats representing the scaled coordinates of all vertices in the graph.

     *         Each vertex's coordinates occupy three consecutive positions in the array (x, y, z),

     *         scaled by a factor of 3.

     */

    public static float[] getVertices() {

        float[] vertices = new float[vertexCount * 3];

        VertexKey tmp;

        }

        return vertices;

    }

    /**

     * Generates an array of face indices with corresponding texture indices for a graphical object.

     * <p>

     * This method constructs an array where each pair of elements corresponds to a face index

     * followed by a texture index. Given that the texture index is not specified or used (set to 0),

     * this method effectively doubles the size of the input list, with every second element in the

     * output array being 0.

     * <p>

     * The method iterates over a global {@code faces} collection, where each element represents a

     * single face index. For each face index from this collection, two entries are added to the result

     * array: the face index itself and a 0 indicating the default or placeholder texture index.

     *

     * @return An array of integers where for every face index from the global faces collection,

     *         two consecutive entries are created in the output array: the face index and a 0 as a

     *         placeholder for the texture index.

     */

    public static int[] getFaces() {

        int[] facesWithTexture = new int[faces.size()*2];

        return facesWithTexture;

    }

    /**

     * Generates a file with a specified filename, populated with 15,000 randomly generated lines of data.

     * Each line is created by the {@code makeLine} method, formatting random coordinate triples to simulate

     * vertices or points in a 3D space.

     * <p>

     * This method creates or overwrites a file named according to the {@code filename} parameter. It uses

     * a {@link BufferedWriter} to efficiently write lines to the file. Each line represents a collection of

     * three coordinate points, each point consisting of x, y, and z coordinates generated randomly within a

     * range of 0 to 30 (exclusive).

     *

     * @param filename The name of the file to be generated or overwritten. If the file already exists,

     *                 its contents will be replaced with the new, randomly generated data.

     * @throws IOException If an I/O error occurs during writing to the file.

     */

    public static void randFileGenerator(String filename) throws IOException {

        Random random = new Random();

        try (BufferedWriter writer = new BufferedWriter(new FileWriter(filename))) {

        }

    }

    /**

     * Generates a string representing three 3D points, each with x, y, and z coordinates.

     * The coordinates are randomly generated within the range [0, 30) and formatted into a string.

     * <p>

     * This method is utilized by {@code randFileGenerator} to create each line of the output file, simulating

     * vertices of triangles in a 3D space. The randomness introduces variability in the data.

     *

     * @param random A {@link Random} instance used to generate the random floats for the coordinates.

     * @return A string formatted as "[x1,y1,z1] [x2,y2,z2] [x3,y3,z3]", where x, y, and z are coordinate

     *         values for three points, generated randomly.

     */

    private static String makeLine(Random random) {

        return String.format("[%f,%f,%f] [%f,%f,%f] [%f,%f,%f]",

                random.nextFloat() * 30, random.nextFloat() * 30, random.nextFloat() * 30,