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use ggez::conf::Conf;
use ggez::event::{self, EventHandler};
use ggez::filesystem;
use ggez::graphics::{self, spritebatch::SpriteBatch, DrawParam, FilterMode, Image, Rect};
use ggez::nalgebra::{Point2, Vector2};
use ggez::{Context, ContextBuilder, GameResult};
use std::io::BufReader;
use tiled::{parse, Map};
struct State {
spritebatch: SpriteBatch,
map: Map,
}
impl State {
fn new(context: &mut Context) -> GameResult<State> {
let mut tileset = Image::new(context, "/tileset.png")?;
tileset.set_filter(FilterMode::Nearest);
let reader = BufReader::new(filesystem::open(context, "/map.tmx")?);
Ok(State {
spritebatch: SpriteBatch::new(tileset),
map: parse(reader).unwrap(),
})
}
}
const TILE_SIZE: f32 = 16.0;
const TILE_SCALE: f32 = 3.0;
impl EventHandler for State {
fn update(&mut self, _context: &mut Context) -> GameResult {
Ok(())
}
fn draw(&mut self, context: &mut Context) -> GameResult {
graphics::clear(context, graphics::BLACK);
for layer in self.map.layers.iter() {
for x in 0..self.map.width {
for y in 0..self.map.height {
let draw_param = DrawParam::default()
.dest(Point2::new(
TILE_SIZE * TILE_SCALE * x as f32,
TILE_SIZE * TILE_SCALE * y as f32,
))
.scale(Vector2::new(TILE_SCALE, TILE_SCALE))
.src(match layer.tiles[y as usize][x as usize] {
1 => Rect::new(0.0, 0.0, 1.0 / 3.0, 1.0),
2 => Rect::new(1.0 / 3.0, 0.0, 2.0 / 3.0, 1.0),
3 => Rect::new(2.0 / 3.0, 0.0, 1.0, 1.0),
_ => Rect::zero(),
});
self.spritebatch.add(draw_param);
}
}
}
graphics::draw(context, &self.spritebatch, DrawParam::default())?;
self.spritebatch.clear();
graphics::present(context)?;
Ok(())
}
}
fn main() -> GameResult {
let conf = Conf::new();
let (ref mut context, ref mut event_loop) = ContextBuilder::new("pax-romana", "tom barrett")
.conf(conf)
.add_resource_path("./resources")
.build()?;
let state = &mut State::new(context)?;
event::run(context, event_loop, state)
}
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