pub type Color = (u8, u8, u8, u8);
pub fn color_blend(c1: &Color, c2: &Color, alpha: f32) -> Color {
(
(((1.0 - alpha) * c1.0 as f32) + alpha * (c2.0 as f32)) as u8,
(((1.0 - alpha) * c1.1 as f32) + alpha * (c2.1 as f32)) as u8,
(((1.0 - alpha) * c1.2 as f32) + alpha * (c2.2 as f32)) as u8,
255,
)
}
pub fn color_dist(c1: &Color, c2: &Color) -> i32 {
let dr = c1.0 as i32 - c2.0 as i32;
let dg = c1.1 as i32 - c2.1 as i32;
let db = c1.2 as i32 - c2.2 as i32;
dr * dr + dg * dg + db * db
}