spiral

A Rust Library for iterating over 2D structures in spiral patterns.

Usage

Add this to your Cargo.toml:

[dependencies]
spiral = "0.1"

And this to your crate root:

extern crate spiral;

Examples

let center_x = 3;
let center_y = 3;
let radius = 4;
for (x, y) in ManhattanIterator::new(center_x, center_y, radius) {
	// Iterates over 7x7 2D array with 'x' & 'y' following this pattern:
	//
	//  0   0   0  23   0   0   0 
	//  0   0  22  12  24   0   0 
	//  0  21  11   5  13  25   0 
	// 20  10   4   1   2   6  14 
	//  0  19   9   3   7  15   0 
	//  0   0  18   8  16   0   0 
	//  0   0   0  17   0   0   0 
}