weathr 1.2.1

A terminal-based ASCII weather application with animated scenes driven by real-time weather data
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165

use crate::render::TerminalRenderer;
use crossterm::style::Color;
use std::io;
use std::sync::OnceLock;

static CLOUD_SHAPES: OnceLock<Vec<Vec<String>>> = OnceLock::new();

struct Cloud {
    x: f32,
    y: f32,
    speed: f32,
    shape: Vec<String>,
    color: Color,
}

pub struct CloudSystem {
    clouds: Vec<Cloud>,
    terminal_width: u16,
    terminal_height: u16,
}

impl CloudSystem {
    pub fn set_cloud_color(&mut self, is_clear: bool) {
        let color = if is_clear {
            Color::White
        } else {
            Color::DarkGrey
        };

        for cloud in &mut self.clouds {
            cloud.color = color;
        }
    }
}

impl CloudSystem {
    pub fn new(terminal_width: u16, terminal_height: u16) -> Self {
        let mut clouds = Vec::new();
        // Add a few initial clouds
        let count = std::cmp::max(1, terminal_width / 20);

        for _ in 0..count {
            clouds.push(Self::create_random_cloud(
                terminal_width,
                terminal_height,
                true,
                Color::White,
            ));
        }

        Self {
            clouds,
            terminal_width,
            terminal_height,
        }
    }

    fn create_random_cloud(width: u16, height: u16, random_x: bool, color: Color) -> Cloud {
        let shapes = CLOUD_SHAPES.get_or_init(Self::create_cloud_shapes);

        let shape_idx = (rand::random::<u32>() as usize) % shapes.len();
        let shape = shapes[shape_idx].clone();

        let y_range = height / 3;
        let y = (rand::random::<u16>() % std::cmp::max(1, y_range)) as f32;

        let x = if random_x {
            (rand::random::<u16>() % width) as f32
        } else {
            -(shape[0].len() as f32)
        };

        let speed = 0.05 + (rand::random::<f32>() * 0.1);

        Cloud {
            x,
            y,
            speed,
            shape,
            color,
        }
    }

    fn create_cloud_shapes() -> Vec<Vec<String>> {
        let shapes = [
            vec![
                "   .--.   ".to_string(),
                " .-(    ). ".to_string(),
                "(___.__)_)".to_string(),
            ],
            vec![
                "      _  _   ".to_string(),
                "    ( `   )_ ".to_string(),
                "   (    )    `)".to_string(),
                "    \\_  (___  )".to_string(),
            ],
            vec![
                "     .--.    ".to_string(),
                "  .-(    ).  ".to_string(),
                " (___.__)__) ".to_string(),
            ],
            vec![
                "   _  _   ".to_string(),
                "  ( `   )_ ".to_string(),
                " (    )   `)".to_string(),
                "  `--'     ".to_string(),
            ],
        ];

        shapes.to_vec()
    }

    pub fn update(
        &mut self,
        terminal_width: u16,
        terminal_height: u16,
        is_clear: bool,
        cloud_color: Color,
    ) {
        self.terminal_width = terminal_width;
        self.terminal_height = terminal_height;

        for cloud in &mut self.clouds {
            cloud.x += cloud.speed;
        }

        self.clouds.retain(|c| c.x < terminal_width as f32);

        let max_clouds = if is_clear {
            (terminal_width / 40) as usize
        } else {
            (terminal_width / 20) as usize
        };

        let spawn_chance = if is_clear { 0.002 } else { 0.005 };

        if self.clouds.len() < max_clouds && rand::random::<f32>() < spawn_chance {
            self.clouds.push(Self::create_random_cloud(
                terminal_width,
                terminal_height,
                false,
                cloud_color,
            ));
        }
    }

    pub fn render(&self, renderer: &mut TerminalRenderer) -> io::Result<()> {
        for cloud in &self.clouds {
            for (i, line) in cloud.shape.iter().enumerate() {
                let y = cloud.y as i16 + i as i16;
                let x = cloud.x as i16;

                if y >= 0 && y < self.terminal_height as i16 {
                    renderer.render_line_colored(
                        std::cmp::max(0, x) as u16,
                        y as u16,
                        line,
                        cloud.color,
                    )?;
                }
            }
        }
        Ok(())
    }
}