本文整理了Java中org.lwjglb.engine.Utils类的一些代码示例，展示了Utils类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Utils类的具体详情如下：
包路径：org.lwjglb.engine.Utils
类名称：Utils

Utils介绍

暂无

代码示例

代码示例来源：origin: lwjglgamedev/lwjglbook

public static MD5Model parse(String meshModelFile) throws Exception {
  List<String> lines = Utils.readAllLines(meshModelFile);

代码示例来源：origin: lwjglgamedev/lwjglbook

public static MD5Frame parse(String blockId, List<String> blockBody) throws Exception {
  MD5Frame result = new MD5Frame();
  String[] tokens = blockId.trim().split("\\s+");
  if (tokens != null && tokens.length >= 2) {
    result.setId(Integer.parseInt(tokens[1]));
  } else {
    throw new Exception("Wrong frame definition: " + blockId);
  }
  List<Float> data = new ArrayList<>();
  for (String line : blockBody) {
    List<Float> lineData = parseLine(line);
    if (lineData != null) {
      data.addAll(lineData);
    }
  }
  float[] dataArr = Utils.listToArray(data);
  result.setFrameData(dataArr);
  return result;
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private static Mesh processMesh(AIMesh aiMesh, List<Material> materials, List<Bone> boneList) {
  List<Float> vertices = new ArrayList<>();
  List<Float> textures = new ArrayList<>();
  List<Float> normals = new ArrayList<>();
  List<Integer> indices = new ArrayList<>();
  List<Integer> boneIds = new ArrayList<>();
  List<Float> weights = new ArrayList<>();
  processVertices(aiMesh, vertices);
  processNormals(aiMesh, normals);
  processTextCoords(aiMesh, textures);
  processIndices(aiMesh, indices);
  processBones(aiMesh, boneList, boneIds, weights);
  Mesh mesh = new Mesh(Utils.listToArray(vertices), Utils.listToArray(textures),
      Utils.listToArray(normals), Utils.listIntToArray(indices),
      Utils.listIntToArray(boneIds), Utils.listToArray(weights));
  Material material;
  int materialIdx = aiMesh.mMaterialIndex();
  if (materialIdx >= 0 && materialIdx < materials.size()) {
    material = materials.get(materialIdx);
  } else {
    material = new Material();
  }
  mesh.setMaterial(material);
  return mesh;
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private void setupDepthShader() throws Exception {
  depthShaderProgram = new ShaderProgram();
  depthShaderProgram.createVertexShader(Utils.loadResource("/shaders/depth_vertex.vs"));
  depthShaderProgram.createFragmentShader(Utils.loadResource("/shaders/depth_fragment.fs"));
  depthShaderProgram.link();
  depthShaderProgram.createUniform("orthoProjectionMatrix");
  depthShaderProgram.createUniform("modelLightViewMatrix");
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private static void handleTexture(Mesh mesh, MD5Mesh md5Mesh, Vector4f defaultColour) throws Exception {
    String texturePath = md5Mesh.getTexture();
    if (texturePath != null && texturePath.length() > 0) {
      Texture texture = new Texture(texturePath);
      Material material = new Material(texture);

      // Handle normal Maps;
      int pos = texturePath.lastIndexOf(".");
      if (pos > 0) {
        String basePath = texturePath.substring(0, pos);
        String extension = texturePath.substring(pos, texturePath.length());
        String normalMapFileName = basePath + "_local" + extension;
        if (Utils.existsResourceFile(normalMapFileName)) {
          Texture normalMap = new Texture(normalMapFileName);
          material.setNormalMap(normalMap);
        }
      }
      mesh.setMaterial(material);
    } else {
      mesh.setMaterial(new Material(defaultColour, 1));
    }
  }
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private static Mesh reorderLists(List<Vector3f> posList, List<Vector2f> textCoordList,
    List<Vector3f> normList, List<Face> facesList) {
  List<Integer> indices = new ArrayList();
  // Create position array in the order it has been declared
  float[] posArr = new float[posList.size() * 3];
  int i = 0;
  for (Vector3f pos : posList) {
    posArr[i * 3] = pos.x;
    posArr[i * 3 + 1] = pos.y;
    posArr[i * 3 + 2] = pos.z;
    i++;
  }
  float[] textCoordArr = new float[posList.size() * 2];
  float[] normArr = new float[posList.size() * 3];
  for (Face face : facesList) {
    IdxGroup[] faceVertexIndices = face.getFaceVertexIndices();
    for (IdxGroup indValue : faceVertexIndices) {
      processFaceVertex(indValue, textCoordList, normList,
          indices, textCoordArr, normArr);
    }
  }
  int[] indicesArr = Utils.listIntToArray(indices);
  Mesh mesh = new Mesh(posArr, textCoordArr, normArr, indicesArr);
  return mesh;
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public Texture(String fileName) throws Exception {
  this(Utils.ioResourceToByteBuffer(fileName, 1024));
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public static ByteBuffer ioResourceToByteBuffer(String resource, int bufferSize) throws IOException {
  ByteBuffer buffer;
  Path path = Paths.get(resource);
  if (Files.isReadable(path)) {
    try (SeekableByteChannel fc = Files.newByteChannel(path)) {
      buffer = BufferUtils.createByteBuffer((int) fc.size() + 1);
      while (fc.read(buffer) != -1) ;
    }
  } else {
    try (
        InputStream source = Utils.class.getResourceAsStream(resource);
        ReadableByteChannel rbc = Channels.newChannel(source)) {
      buffer = createByteBuffer(bufferSize);
      while (true) {
        int bytes = rbc.read(buffer);
        if (bytes == -1) {
          break;
        }
        if (buffer.remaining() == 0) {
          buffer = resizeBuffer(buffer, buffer.capacity() * 2);
        }
      }
    }
  }
  buffer.flip();
  return buffer;
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private void setupHudShader() throws Exception {
  hudShaderProgram = new ShaderProgram();
  hudShaderProgram.createVertexShader(Utils.loadResource("/shaders/hud_vertex.vs"));
  hudShaderProgram.createFragmentShader(Utils.loadResource("/shaders/hud_fragment.fs"));
  hudShaderProgram.link();
  // Create uniforms for Ortographic-model projection matrix and base colour
  hudShaderProgram.createUniform("projModelMatrix");
  hudShaderProgram.createUniform("colour");
  hudShaderProgram.createUniform("hasTexture");
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private static void handleTexture(Mesh mesh, MD5Mesh md5Mesh, Vector4f defaultColour) throws Exception {
    String texturePath = md5Mesh.getTexture();
    if (texturePath != null && texturePath.length() > 0) {
      Texture texture = new Texture(texturePath);
      Material material = new Material(texture);

      // Handle normal Maps;
      int pos = texturePath.lastIndexOf(".");
      if (pos > 0) {
        String basePath = texturePath.substring(0, pos);
        String extension = texturePath.substring(pos, texturePath.length());
        String normalMapFileName = basePath + "_local" + extension;
        if (Utils.existsResourceFile(normalMapFileName)) {
          Texture normalMap = new Texture(normalMapFileName);
          material.setNormalMap(normalMap);
        }
      }
      mesh.setMaterial(material);
    } else {
      mesh.setMaterial(new Material(defaultColour, 1));
    }
  }
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private static Mesh reorderLists(List<Vector3f> posList, List<Vector2f> textCoordList,
    List<Vector3f> normList, List<Face> facesList) {
  List<Integer> indices = new ArrayList();
  // Create position array in the order it has been declared
  float[] posArr = new float[posList.size() * 3];
  int i = 0;
  for (Vector3f pos : posList) {
    posArr[i * 3] = pos.x;
    posArr[i * 3 + 1] = pos.y;
    posArr[i * 3 + 2] = pos.z;
    i++;
  }
  float[] textCoordArr = new float[posList.size() * 2];
  float[] normArr = new float[posList.size() * 3];
  for (Face face : facesList) {
    IdxGroup[] faceVertexIndices = face.getFaceVertexIndices();
    for (IdxGroup indValue : faceVertexIndices) {
      processFaceVertex(indValue, textCoordList, normList,
          indices, textCoordArr, normArr);
    }
  }
  int[] indicesArr = Utils.listIntToArray(indices);
  Mesh mesh = new Mesh(posArr, textCoordArr, normArr, indicesArr);
  return mesh;
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public Texture(String fileName) throws Exception {
  this(Utils.ioResourceToByteBuffer(fileName, 1024));
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public static ByteBuffer ioResourceToByteBuffer(String resource, int bufferSize) throws IOException {
  ByteBuffer buffer;
  Path path = Paths.get(resource);
  if (Files.isReadable(path)) {
    try (SeekableByteChannel fc = Files.newByteChannel(path)) {
      buffer = BufferUtils.createByteBuffer((int) fc.size() + 1);
      while (fc.read(buffer) != -1) ;
    }
  } else {
    try (
        InputStream source = Utils.class.getResourceAsStream(resource);
        ReadableByteChannel rbc = Channels.newChannel(source)) {
      buffer = createByteBuffer(bufferSize);
      while (true) {
        int bytes = rbc.read(buffer);
        if (bytes == -1) {
          break;
        }
        if (buffer.remaining() == 0) {
          buffer = resizeBuffer(buffer, buffer.capacity() * 2);
        }
      }
    }
  }
  buffer.flip();
  return buffer;
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private void setupDepthShader() throws Exception {
  depthShaderProgram = new ShaderProgram();
  depthShaderProgram.createVertexShader(Utils.loadResource("/shaders/depth_vertex.vs"));
  depthShaderProgram.createFragmentShader(Utils.loadResource("/shaders/depth_fragment.fs"));
  depthShaderProgram.link();
  depthShaderProgram.createUniform("orthoProjectionMatrix");
  depthShaderProgram.createUniform("modelLightViewMatrix");
  // Create uniform for joint matrices
  depthShaderProgram.createUniform("jointsMatrix");
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public static MD5Model parse(String meshModelFile) throws Exception {
  List<String> lines = Utils.readAllLines(meshModelFile);

代码示例来源：origin: lwjglgamedev/lwjglbook

public static MD5Frame parse(String blockId, List<String> blockBody) throws Exception {
  MD5Frame result = new MD5Frame();
  String[] tokens = blockId.trim().split("\\s+");
  if (tokens != null && tokens.length >= 2) {
    result.setId(Integer.parseInt(tokens[1]));
  } else {
    throw new Exception("Wrong frame definition: " + blockId);
  }
  List<Float> data = new ArrayList<>();
  for (String line : blockBody) {
    List<Float> lineData = parseLine(line);
    if (lineData != null) {
      data.addAll(lineData);
    }
  }
  float[] dataArr = Utils.listToArray(data);
  result.setFrameData(dataArr);
  return result;
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private static Mesh processMesh(AIMesh aiMesh, List<Material> materials, List<Bone> boneList) {
  List<Float> vertices = new ArrayList<>();
  List<Float> textures = new ArrayList<>();
  List<Float> normals = new ArrayList<>();
  List<Integer> indices = new ArrayList<>();
  List<Integer> boneIds = new ArrayList<>();
  List<Float> weights = new ArrayList<>();
  processVertices(aiMesh, vertices);
  processNormals(aiMesh, normals);
  processTextCoords(aiMesh, textures);
  processIndices(aiMesh, indices);
  processBones(aiMesh, boneList, boneIds, weights);
  Mesh mesh = new Mesh(Utils.listToArray(vertices), Utils.listToArray(textures),
      Utils.listToArray(normals), Utils.listIntToArray(indices),
      Utils.listIntToArray(boneIds), Utils.listToArray(weights));
  Material material;
  int materialIdx = aiMesh.mMaterialIndex();
  if (materialIdx >= 0 && materialIdx < materials.size()) {
    material = materials.get(materialIdx);
  } else {
    material = new Material();
  }
  mesh.setMaterial(material);
  return mesh;
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private static void handleTexture(Mesh mesh, MD5Mesh md5Mesh, Vector4f defaultColour) throws Exception {
    String texturePath = md5Mesh.getTexture();
    if (texturePath != null && texturePath.length() > 0) {
      Texture texture = new Texture(texturePath);
      Material material = new Material(texture);

      // Handle normal Maps;
      int pos = texturePath.lastIndexOf(".");
      if (pos > 0) {
        String basePath = texturePath.substring(0, pos);
        String extension = texturePath.substring(pos, texturePath.length());
        String normalMapFileName = basePath + "_local" + extension;
        if (Utils.existsResourceFile(normalMapFileName)) {
          Texture normalMap = new Texture(normalMapFileName);
          material.setNormalMap(normalMap);
        }
      }
      mesh.setMaterial(material);
    } else {
      mesh.setMaterial(new Material(defaultColour, 1));
    }
  }
}

代码示例来源：origin: lwjglgamedev/lwjglbook

private static Mesh reorderLists(List<Vector3f> posList, List<Vector2f> textCoordList,
    List<Vector3f> normList, List<Face> facesList) {
  List<Integer> indices = new ArrayList();
  // Create position array in the order it has been declared
  float[] posArr = new float[posList.size() * 3];
  int i = 0;
  for (Vector3f pos : posList) {
    posArr[i * 3] = pos.x;
    posArr[i * 3 + 1] = pos.y;
    posArr[i * 3 + 2] = pos.z;
    i++;
  }
  float[] textCoordArr = new float[posList.size() * 2];
  float[] normArr = new float[posList.size() * 3];
  for (Face face : facesList) {
    IdxGroup[] faceVertexIndices = face.getFaceVertexIndices();
    for (IdxGroup indValue : faceVertexIndices) {
      processFaceVertex(indValue, textCoordList, normList,
          indices, textCoordArr, normArr);
    }
  }
  int[] indicesArr = Utils.listIntToArray(indices);
  Mesh mesh = new Mesh(posArr, textCoordArr, normArr, indicesArr);
  return mesh;
}

代码示例来源：origin: lwjglgamedev/lwjglbook

public Texture(String fileName) throws Exception {
  this(Utils.ioResourceToByteBuffer(fileName, 1024));
}