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|
use crate::constants;
use ggez::graphics::{self, DrawParam, FilterMode, Image, Rect};
use ggez::mint::{Point2, Vector2};
use ggez::{Context, GameResult};
use std::time::Instant;
#[derive(Clone, Copy)]
enum CosmonautFrames {
None,
One,
Two,
Three,
Four,
}
impl CosmonautFrames {
pub fn next(&mut self) {
*self = match self {
CosmonautFrames::None => CosmonautFrames::One,
CosmonautFrames::One => CosmonautFrames::Two,
CosmonautFrames::Two => CosmonautFrames::Three,
CosmonautFrames::Three => CosmonautFrames::Four,
CosmonautFrames::Four => CosmonautFrames::None,
};
}
}
pub struct Cosmonaut {
destination: Point2<f32>,
image: Image,
frame: CosmonautFrames,
timer: Instant,
scale: Vector2<f32>,
}
impl Cosmonaut {
pub fn new(context: &mut Context) -> GameResult<Cosmonaut> {
let mut image = Image::new(context, "/cosmonaut.png")?;
image.set_filter(FilterMode::Nearest);
Ok(Cosmonaut {
image,
destination: Point2 { x: 600.0, y: 350.0 },
frame: CosmonautFrames::None,
timer: Instant::now(),
scale: Vector2 {
x: constants::TILE_SCALE * 2.0,
y: constants::TILE_SCALE * 2.0,
},
})
}
pub fn draw(&self, context: &mut Context) -> GameResult {
graphics::draw(
context,
&self.image,
DrawParam::default()
.dest(self.destination)
.scale(self.scale)
.src(Rect::new(0.0, 0.0, 1.0 / 3.0, 1.0)),
)?;
let source = match self.frame {
CosmonautFrames::None => None,
CosmonautFrames::One => Some(Rect::new(1.0 / 3.0, 0.0, 1.0 / 3.0, 1.0 / 2.0)),
CosmonautFrames::Two => Some(Rect::new(2.0 / 3.0, 0.0, 1.0, 1.0 / 2.0)),
CosmonautFrames::Three => Some(Rect::new(1.0 / 3.0, 1.0 / 2.0, 1.0 / 3.0, 1.0 / 2.0)),
CosmonautFrames::Four => Some(Rect::new(2.0 / 3.0, 1.0 / 2.0, 1.0, 1.0)),
};
if let Some(source) = source {
graphics::draw(
context,
&self.image,
DrawParam::default()
.dest(self.destination)
.src(source)
.scale(self.scale),
)?;
}
Ok(())
}
pub fn update(&mut self) {
match self.frame {
CosmonautFrames::None => (),
_ => {
if self.timer.elapsed().as_millis() > 50 {
self.frame.next();
self.timer = Instant::now();
}
}
}
}
pub fn start(&mut self) {
if let CosmonautFrames::None = self.frame {
if self.timer.elapsed().as_secs() > 5 {
self.timer = Instant::now();
self.frame.next()
}
}
}
pub fn contains(&self, position: Point2<f32>) -> bool {
position.x > self.destination.x
&& position.y > self.destination.y
&& position.x < self.destination.x + constants::TILE_WIDTH * constants::TILE_SCALE * 2.0
&& position.y < self.destination.y + constants::TILE_WIDTH * constants::TILE_SCALE * 2.0
}
}
|
