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|
use ggez::filesystem::File;
use ggez::graphics::{spritebatch::SpriteBatch, DrawParam};
use ggez::nalgebra::{Point2, Vector2};
use xml::reader::XmlEvent::Characters;
use crate::constants;
use crate::tileset::Tileset;
use crate::xmlelements::XMLElements;
pub struct Map {
pub width: usize,
pub height: usize,
pub layers: Vec<Layer>,
}
impl Map {
pub fn new(file: File) -> Map {
let elements = XMLElements::new(file);
let width = elements.get_element_attribute("map", "width").unwrap();
let height = elements.get_element_attribute("map", "height").unwrap();
let layers = elements
.events
.iter()
.filter_map(|e| {
if let Characters(text) = e {
Some(Layer::new(text.to_string()))
} else {
None
}
})
.collect();
Map {
layers,
width,
height,
}
}
pub fn draw(&self, spritebatch: &mut SpriteBatch, tileset: &Tileset) {
for layer in self.layers.iter() {
for x in 0..self.width {
for y in 0..self.height {
let draw_param = DrawParam::default()
.src(tileset.tiles[layer.data[x + (y * self.height)]])
.dest(Point2::new(
constants::TILE_WIDTH * constants::TILE_SCALE * x as f32,
constants::TILE_HEIGHT * constants::TILE_SCALE * y as f32,
))
.scale(Vector2::new(constants::TILE_SCALE, constants::TILE_SCALE));
spritebatch.add(draw_param);
}
}
}
}
pub fn get_dimensions(&self) -> (f32, f32) {
(
(constants::TILE_WIDTH * constants::TILE_SCALE) * self.width as f32,
(constants::TILE_HEIGHT * constants::TILE_SCALE) * self.height as f32,
)
}
}
pub struct Layer {
pub data: Vec<usize>,
}
impl Layer {
pub fn new(text: String) -> Layer {
Layer {
data: text
.replace("\n", "")
.split(',')
.map(|s| s.parse().unwrap())
.collect(),
}
}
}
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