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use ggez::filesystem::File;
use ggez::graphics::Rect;
use std::io::BufReader;
use xml::reader::{EventReader, XmlEvent};
pub struct Tileset {
pub tiles: Vec<Rect>,
pub tile_width: f32,
pub tile_height: f32,
}
impl Tileset {
pub fn new(file: File) -> Tileset {
let mut tile_width = None;
let mut tile_height = None;
let mut columns = None;
let mut height = None;
for e in EventReader::new(BufReader::new(file)) {
if let Ok(XmlEvent::StartElement { attributes, .. }) = e {
for attribute in attributes {
match attribute.name.local_name.as_str() {
"columns" => columns = Some(attribute.value.parse::<usize>().unwrap()),
"tilewidth" => tile_width = Some(attribute.value.parse::<f32>().unwrap()),
"tileheight" => tile_height = Some(attribute.value.parse::<f32>().unwrap()),
"height" => height = Some(attribute.value.parse::<usize>().unwrap()),
_ => (),
}
}
}
}
let columns = columns.unwrap();
let tile_height = tile_height.unwrap();
let tile_width = tile_width.unwrap();
let height = height.unwrap();
let rows = height / (tile_height as usize);
let mut tiles = Vec::new();
tiles.push(Rect::zero());
for r in 0..rows {
for c in 0..columns {
let x = c as f32 / columns as f32;
let y = r as f32 / rows as f32;
let w = (c as f32 + 1.0) / columns as f32;
let h = (r as f32 + 1.0) / rows as f32;
tiles.push(Rect::new(x, y, w, h));
}
}
Tileset {
tiles,
tile_height,
tile_width,
}
}
}
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