src/ui.rs


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pub mod topbar;
pub mod bodies_window;
pub mod fleet_window;

use std::{borrow::Borrow, cell::RefCell};

use crate::GameState;
use crate::eguictx::EguiCtx;
use crate::solar_system::body::BodyId;
use crate::ui::bodies_window::BodiesWindowState;
use crate::ui::fleet_window::FleetWindowState;
use crate::ui::topbar::TopBarState;

#[derive(Default, Clone)]
pub struct State
{
    pub camera_target: Option<BodyId>,
    pub topbar_sate: TopBarState,

    pub bodies_window: BodiesWindowState,
    pub fleet_window: FleetWindowState
}

impl State
{
    pub fn render(
        &mut self,
        game_state: &RefCell<GameState>,
        eguictx: &EguiCtx)
    {
        let mut game_state = game_state.borrow_mut();

        let topbar_action = TopBarState::render(
            &mut self.topbar_sate,
            &game_state,
            eguictx);

        if let Some(by) = topbar_action.advance_tick {
            game_state.timeman_mut().advance(by)
        }

        let current_system = match self.topbar_sate.current_system {
            Some(id) => &game_state.solar_systems()[id],
            None => return
        };

        if self.topbar_sate.bodies_window_visible {
            let bodies_window_action =
                self.bodies_window.render(current_system, eguictx);
            if bodies_window_action.focus_body.is_some() {
                self.camera_target = bodies_window_action.focus_body;
            }
        }

        if self.topbar_sate.fleet_window_visible {
            let fleet_window_action = 
                self.fleet_window.render(game_state.borrow(), eguictx);
        }
    }
}