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use crate::{frame::Frame, helpers::vector::Vec2, pixel::Pixel, view::View};
impl View<&mut Frame> {
pub fn draw_box(&mut self, color: Pixel) {
let w = self.size.x;
let h = self.size.y;
for x in 0..w {
self[(x, 0)] = color;
self[(x, h - 1)] = color;
}
for y in 0..h {
self[(0, y)] = color;
self[(w - 1, y)] = color;
}
}
}
impl Frame {
pub fn draw_line(&mut self, start: Vec2<isize>, end: Vec2<isize>, color: Pixel) {
let (sx, sy) = (start.x as f32, start.y as f32);
let (ex, ey) = (end.x as f32, end.y as f32);
let (dx, dy) = (ex - sx, ey - sy);
let len = (dx * dx + dy * dy).sqrt();
let (nx, ny) = (dx / len, dy / len);
let (mut cx, mut cy) = (sx, sy);
let mut lc = 0.0;
while lc < len {
self.set(
Vec2 {
x: cx as isize,
y: cy as isize,
},
color,
);
lc += 0.5;
cx += nx * 0.5;
cy += ny * 0.5;
}
}
}
impl Pixel {
pub const RED: Pixel = Pixel { r: 255, g: 0, b: 0 };
pub const GREEN: Pixel = Pixel { r: 0, g: 255, b: 0 };
pub const BLUE: Pixel = Pixel { r: 0, g: 0, b: 255 };
}
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