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extern crate sdl2;
extern crate std;

use super::state;

pub struct Player {
    pub x: i32,
    pub y: i32,
    left_p: bool,
    right_p: bool,
    up_p: bool,
    down_p: bool,
    y_d: i32,
    x_d: i32,
    pub fire_rate: u32,
}

impl Player {
    pub fn new() -> Player {
        Player { x: 400, y: 500, x_d: 0, y_d: 0, down_p: false, left_p: false, right_p: false, up_p: false, fire_rate: 30 }
    }

    pub fn act(&mut self, events: &mut sdl2::event::EventPollIterator){
        for event in events {
            match event {
                sdl2::event::Event::Quit {..} |
                    sdl2::event::Event::KeyDown { keycode: Some(sdl2::keyboard::Keycode::Escape), .. } => {
                        std::process::exit(0);
                    },
                sdl2::event::Event::KeyDown { keycode: Some(sdl2::keyboard::Keycode::Down), .. } => {
                    self.down_p = true;
                    self.y_d = -1;
                }
                sdl2::event::Event::KeyUp { keycode: Some(sdl2::keyboard::Keycode::Down), .. } => {
                    self.down_p = false;
                }
                sdl2::event::Event::KeyDown { keycode: Some(sdl2::keyboard::Keycode::Up), .. } => {
                    self.up_p = true;
                    self.y_d = 1;
                }
                sdl2::event::Event::KeyUp { keycode: Some(sdl2::keyboard::Keycode::Up), .. } => {
                    self.up_p = false;
                }
                sdl2::event::Event::KeyDown { keycode: Some(sdl2::keyboard::Keycode::Left), .. } => {
                    self.left_p = true;
                    self.x_d = -1;
                }
                sdl2::event::Event::KeyUp { keycode: Some(sdl2::keyboard::Keycode::Left), .. } => {
                    self.left_p = false;
                }
                sdl2::event::Event::KeyDown { keycode: Some(sdl2::keyboard::Keycode::Right), .. } => {
                    self.right_p = true;
                    self.x_d = 1;
                }
                sdl2::event::Event::KeyUp { keycode: Some(sdl2::keyboard::Keycode::Right), .. } => {
                    self.right_p = false;
                }
                _ => { },
            }
        }
        if self.left_p {
            if !self.right_p {
                self.x_d = -1;
            }
        } else if self.right_p {
            self.x_d = 1;
        } else {
            self.x_d = 0;
        }
        if self.up_p {
            if !self.down_p {
                self.y_d = -1;
            }
        } else if self.down_p {
            self.y_d = 1;
        } else {
            self.y_d = 0;
        }
        self.x += self.x_d;
        self.y += self.y_d;
    }
}

impl state::Positioned for Player {
    fn x(&self) -> i32 {
        self.x
    }
    fn y(&self) -> i32 {
        self.y
    }
    fn radius(&self) -> u32 {
        5
    }
}

impl state::Drawable for Player {
    fn color(&self) -> sdl2::pixels::Color {
        sdl2::pixels::Color::RGB(0, 0, 0)
    }
}