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Diffstat (limited to 'src')
| -rw-r--r-- | src/hitomezashi.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/hitomezashi.rs b/src/hitomezashi.rs index 9ec8758..8e2a773 100644 --- a/src/hitomezashi.rs +++ b/src/hitomezashi.rs @@ -36,6 +36,10 @@ pub fn hitomezashi(width: usize, height: usize, skew: Option<f64>) { // skew=0.5 generates the most random-looking patterns let skew: f64 = skew.unwrap_or(0.5); + assert!(width >= 1, "Width must be a positive number!"); + assert!(height >= 1, "Height must be a positive number!"); + assert!(skew >= 0.0 && skew <= 1.0, "Skew must be between zero and one inclusive!"); + let mut rng = rand::thread_rng(); let brn = Bernoulli::new(skew).unwrap(); |