https://git.spwbk.site/swatson/rs-rl/raw/master/src/rect.rs
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use serde::{Serialize, Deserialize};

#[derive(PartialEq, Copy, Clone, Serialize, Deserialize)]
pub struct Rect {
   pub x1 : i32,
   pub x2 : i32,
   pub y1 : i32,
   pub y2 : i32
}

impl Rect {
   pub fn new(x:i32, y: i32, w:i32, h:i32) -> Rect {
       Rect{x1:x, y1:y, x2:x+w, y2:y+h}
   }

   // Returns true if this overlaps with other
   pub fn intersect(&self, other:&Rect) -> bool {
       self.x1 <= other.x2 && self.x2 >= other.x1 && self.y1 <= other.y2 && self.y2 >= other.y1
   }

   pub fn center(&self) -> (i32, i32) {
       ((self.x1 + self.x2)/2, (self.y1 + self.y2)/2)
   }
}