//! Graphics module
//!
//! Each entity in the game has a graphics companion object in
//! [`entities`](self::entities), which knows how to render a given
//! object.  Different game screens and UI elements can be found in
//! [`ui`](self::ui).

pub mod entities;
pub mod ui;

mod vector2;
pub use vector2::*;

use crate::state::ClientState;
use ggez::{Context, GameResult};
use std::ops::{Add, Mul, Sub};

/// A utility module to include everything required to implement a
/// graphics entity
pub(self) mod prelude {
    pub use ggez::{
        event::EventHandler,
        graphics::{self, DrawMode, DrawParam, Drawable, Mesh},
        Context, GameResult,
    };
    pub use mint::Point2;

    pub use super::Renderer;
    pub use crate::state::ClientState;
}

/// A rendering trait which is given graphics context, and game state
pub trait Renderer {
    fn update(&mut self, _state: &mut ClientState, _ctx: &mut Context) -> GameResult<()>;
    fn draw(&self, _state: &ClientState, _ctx: &mut Context) -> GameResult<()>;
}