agni 0.1.2

Agni is 3D pathtracing research library
Documentation 
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use std::path::PathBuf;

#[derive(Debug)]
pub struct Configuration {
    pub input_files: Vec<PathBuf>,
    pub output: String,
    pub number_of_threads: u8,
    pub quiet: bool
}

impl Configuration {
    pub fn new() -> Configuration {
        Configuration {
            input_files: Vec::new(),
            output: String::from("render.png"),
            number_of_threads: default_threads(),
            quiet: false,
        }
    }

    pub fn add_input<'a>(&'a mut self, file: PathBuf) -> &'a mut Configuration {
        self.input_files.push(file);
        self
    }

    pub fn set_output<'a>(&'a mut self, file: String) -> &'a mut Configuration {
        self.output = file;
        self
    }

    pub fn set_threads<'a>(&'a mut self, num: u8) -> &'a mut Configuration {
        self.number_of_threads = num;
        self
    }

    pub fn set_quiet<'a>(&'a mut self, val: bool) -> &'a mut Configuration {
        self.quiet = val;
        self
    }
}

pub fn default_threads() -> u8 {
    let virtual_cores = num_cpus::get();
    let threads = if virtual_cores > 1 {
        virtual_cores - 1
    } else {
        virtual_cores
    };

    threads as u8
}