Question

我创建了一个Light类，它接收三个Vector3fs，即位置，颜色和衰减。我已经能够创建一个方法将Light保存到配置中：

lightName: (0.0, 1000.0, -7000.0), (1.0, 1.0, 1.0), (1.0, 0.0, 0.0)

现在我需要一种方法，可以使用保存的信息加载和返回灯光。到目前为止，我有：

public Light getLight(String name) {
    String line;
    try {
        while((line = bufferedReader.readLine()) != null) {
            if(line.startsWith(name)) {
                line = line.replace(name + ": ", "");
                return new Light(new Vector3f(x , y, z), new Vector3f(r, g, b), new Vector3f(x1, y1, z1));
            }
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

任何建议都将不胜感激！谢谢！

---- UPDATE ------

感谢Johnny的回应，我能够弄明白。这是完全有效的代码：

public Light getLight(String name) {
    String line;
    float x = 0, y = 0, z = 0, r = 0, g = 0, b = 0, x1 = 1, y1 = 0, z1 = 0;
    try {
        while((line = bufferedReader.readLine()) != null) {
            if(line.startsWith(name)) {
                line = line.replace(name + ": ", "").replace("(", "").replace(")", "");
                Scanner parser = new Scanner(line);
                parser.useDelimiter(", ");
                x = parser.nextFloat();
                y = parser.nextFloat();
                z = parser.nextFloat();

                r = parser.nextFloat();
                g = parser.nextFloat();
                b = parser.nextFloat();

                x1 = parser.nextFloat();
                y1 = parser.nextFloat();
                z1 = parser.nextFloat();
                parser.close();
                break;
            }
        }
        return new Light(new Vector3f(x , y, z), new Vector3f(r, g, b), new Vector3f(x1, y1, z1));
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

Answer 1

您不需要替换line中的任何内容，因为您需要的只是数字。但是，您需要解析line中的数字。

您应该循环或全部解析数字，将每个数字分配给变量，然后创建Light。

类似于以下内容应该有效：

public Light getLight(String name) {
    String line;
    double x, y, z, r, g, b, x1, y1, z1;

    try {
        while((line = bufferedReader.readLine()) != null) {
            if(line.startsWith(name)) {
                Scanner parser = new Scanner(line);
                x = parser.nextDouble();
                y = parser.nextDouble();
                // continue assigning variables

                // break out of while loop, only interested in one line
                break;
            }
        }

        return new Light(new Vector3f(x , y, z), new Vector3f(r, g, b), new Vector3f(x1, y1, z1));
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

从配置加载光

1 个答案: