src/main.rs


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

pub use transform::Transform;

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

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

    let mut tool_shed = ToolShed::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();
        }

        tool_shed.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);

            tool_shed.draw_tools(&mut d, &transform);
        }
    }
}