weathr 1.2.3

A terminal-based ASCII weather application with animated scenes driven by real-time weather data
Documentation 
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use crate::render::TerminalRenderer;
use crossterm::style::Color;
use std::io;

#[derive(Default)]
pub struct Ground;

impl Ground {
    pub fn render(
        &self,
        renderer: &mut TerminalRenderer,
        width: u16,
        height: u16,
        y_start: u16,
        is_day: bool,
    ) -> io::Result<()> {
        let width = width as usize;
        let height = height as usize;

        let grass_colors = if is_day {
            [Color::Green, Color::DarkGreen]
        } else {
            [Color::DarkGreen, Color::Rgb { r: 0, g: 50, b: 0 }]
        };

        let flower_colors = if is_day {
            vec![Color::Magenta, Color::Red, Color::Cyan, Color::Yellow]
        } else {
            vec![
                Color::DarkMagenta,
                Color::DarkRed,
                Color::Blue,
                Color::DarkYellow,
            ]
        };

        let soil_color = if is_day {
            Color::Rgb {
                r: 101,
                g: 67,
                b: 33,
            }
        } else {
            Color::Rgb {
                r: 60,
                g: 40,
                b: 20,
            }
        };

        // Simple seeded RNG for deterministic decoration positions
        fn pseudo_rand(x: usize, y: usize) -> u32 {
            ((x as u32 ^ 0x5DEECE6).wrapping_mul(y as u32 ^ 0xB)) % 100
        }

        for y in 0..height {
            for x in 0..width {
                let (ch, color) = if y == 0 {
                    // Top layer: Grass/Flowers only (no path)
                    let r = pseudo_rand(x, y);
                    if r < 5 {
                        // 5% chance of flower
                        let f_idx = (x + y) % flower_colors.len();
                        ('*', flower_colors[f_idx])
                    } else if r < 15 {
                        // 10% chance of distinct grass blade
                        (',', grass_colors[1])
                    } else {
                        ('^', grass_colors[0])
                    }
                } else {
                    // Lower layers: Soil/Rocks only (no path)
                    let r = pseudo_rand(x, y);
                    let ch = if r < 20 {
                        '~'
                    } else if r < 25 {
                        '.'
                    } else {
                        ' '
                    };
                    (ch, soil_color)
                };

                renderer.render_char(x as u16, y_start + y as u16, ch, color)?;
            }
        }
        Ok(())
    }
}