pack 0.4.0

Solver for packing puzzle.
Documentation 
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//! Utilities for creating `Target`s.

use super::super::puzzle::solver::Target;
use super::super::puzzle::piece::Position;

/// Create a brick `Target`, defined by the dimensions.
pub fn brick(width: u8, height: u8, depth: u8) -> Target<(i8, i8, i8)> {
    let mut positions: Vec<Position<(i8, i8, i8)>> = vec!();
    for x in 0..width {
        for y in 0..height {
            for z in 0..depth {
                positions.push(Position::new(x as i8, y as i8, z as i8));
            }
        }
    }
    Target::new(positions)
}

/// Create a rectangle `Target`, defined by the dimensions.
pub fn rectangle(width: u8, height: u8) -> Target<(i8, i8)> {
    let mut positions: Vec<Position<(i8, i8)>> = vec!();
    for x in 0..width {
        for y in 0..height {
            positions.push(Position::d2(x as i8, y as i8));
        }
    }
    Target::new(positions)
}


#[cfg(test)]
mod tests {
	  use super::super::super::puzzle::piece::{Position, Piece};
	  use super::*;

	  #[test]
	  fn should_create_a_brick() {
		    let target = brick(1,2,3);

		    assert!(target.fits(&Piece::new(vec!(Position::new(0,0,0)))));
		    assert!(target.fits(&Piece::new(vec!(Position::new(0,0,1)))));
		    assert!(target.fits(&Piece::new(vec!(Position::new(0,0,2)))));
		    assert!(target.fits(&Piece::new(vec!(Position::new(0,1,0)))));
		    assert!(target.fits(&Piece::new(vec!(Position::new(0,1,1)))));
		    assert!(target.fits(&Piece::new(vec!(Position::new(0,1,2)))));
	  }

	  #[test]
	  fn should_create_a_rectangle() {
		    let target = rectangle(2,2);

        assert!(target.fits(&Piece::new(vec!(Position::d2(0,0)))));
		    assert!(target.fits(&Piece::new(vec!(Position::d2(0,1)))));
		    assert!(target.fits(&Piece::new(vec!(Position::d2(1,0)))));
		    assert!(target.fits(&Piece::new(vec!(Position::d2(1,1)))));
	  }
}