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- use space_crush_common::{
- components::{Fleet, Orbit, Position},
- continue_if_none,
- misc::LogResult,
- };
- use specs::{prelude::*, ReadExpect, ReadStorage, System, World};
-
- use crate::{
- misc::{HorizontalAlign, Text, TextManager, VerticalAlign},
- resources::{Camera, GameState},
- Error,
- };
-
- pub struct Fleets {
- text: Text,
- }
-
- #[derive(SystemData)]
- pub struct FleetData<'a> {
- game_state: ReadExpect<'a, GameState>,
- camera: ReadExpect<'a, Camera>,
- positions: ReadStorage<'a, Position>,
- orbits: ReadStorage<'a, Orbit>,
- fleets: ReadStorage<'a, Fleet>,
- }
-
- impl Fleets {
- pub fn new(manager: &TextManager) -> Result<Self, Error> {
- let cache = manager.create_cache()?;
- let text = cache
- .new_text()
- .scale(20.0)
- .font("resources/fonts/DroidSansMono.ttf")
- .color(0.7, 0.7, 0.7, 1.0)
- .vert_align(VerticalAlign::Center)
- .horz_align(HorizontalAlign::Center)
- .text("")
- .build()?;
-
- Ok(Self { text })
- }
- }
-
- impl<'a> System<'a> for Fleets {
- type SystemData = FleetData<'a>;
-
- fn run(&mut self, data: Self::SystemData) {
- let FleetData {
- game_state,
- camera,
- positions,
- orbits,
- fleets,
- } = data;
-
- let player_index = game_state.player_index();
-
- gl::enable(gl::BLEND);
-
- for (position, orbit) in (&positions, &orbits).join() {
- let fleet_id = continue_if_none!(orbit.fleet(player_index));
- let fleet = continue_if_none!(fleets.get(fleet_id));
-
- gl::blend_func(gl::SRC_ALPHA, gl::ONE_MINUS_SRC_ALPHA);
- gl::blend_equation(gl::FUNC_SUBTRACT);
- self.text
- .update(
- 0,
- format!(
- "F:{}\nB:{}\nT:{}",
- fleet.count().fighter,
- fleet.count().bomber,
- fleet.count().transporter
- ),
- )
- .panic("Unable to update text")
- .render_offset(&camera.world_to_window(*position.pos()));
- }
-
- gl::blend_equation(gl::FUNC_ADD);
- gl::disable(gl::BLEND);
- }
- }
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