src/main.rs


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

pub mod grid;
pub mod math;
pub mod tool;
pub mod transform;

pub use transform::Transform;

use raylib::prelude::*;
use tool::{RoomTool, Tool};

fn main() {
    let (mut rl, thread) = raylib::init().resizable().title("Hello there!").build();

    let mut current_tool = RoomTool::new();

    let mut transform = Transform::new();
    let mut last_mouse_pos = rl.get_mouse_position();
    while !rl.window_should_close() {
        let screen_width = rl.get_screen_width();
        let screen_height = rl.get_screen_height();

        // Move the canvas together with the mouse
        if rl.is_mouse_button_down(MouseButton::MOUSE_MIDDLE_BUTTON) {
            transform.move_by_px(rl.get_mouse_position() - last_mouse_pos);
        }

        // Handle scrolling of the canvas
        if rl.get_mouse_wheel_move() > 0 {
            transform.try_zoom_in();
        } else if rl.get_mouse_wheel_move() < 0 {
            transform.try_zoom_out();
        }

        current_tool.update(&rl, &transform);

        // Update the last mouse position
        last_mouse_pos = rl.get_mouse_position();

        // Drawing section
        {
            let mut d = rl.begin_drawing(&thread);
            d.clear_background(Color::BLACK);
            grid::draw_grid(&mut d, screen_width, screen_height, &transform);

            current_tool.draw(&mut d, &transform);
        }
    }
}