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use ggez::graphics::{spritebatch::SpriteBatch, DrawParam, Rect};
use ggez::nalgebra::{Point2, Vector2};
use crate::constants;
use crate::math::convert_angle_to_rad;
use crate::tileset::Tileset;
pub struct Tile {
//id: u32,
source: Rect,
//animation: Option<Vec<(u32, Rect)>>,
rotate: f32,
destination: Point2<f32>,
}
impl Tile {
pub fn new(text: &str, i: usize, tileset: &Tileset, width: usize, height: usize) -> Tile {
let id = text.parse::<usize>().unwrap();
//let flip_d = (id & constants::FLIP_DIAGONAL_FLAG) == constants::FLIP_DIAGONAL_FLAG;
let flip_h = (id & constants::FLIP_HORIZONTAL_FLAG) == constants::FLIP_HORIZONTAL_FLAG;
let flip_v = (id & constants::FLIP_VERTICAL_FLAG) == constants::FLIP_VERTICAL_FLAG;
let id = if flip_h | flip_v {
id & !constants::ALL_FLIP_FLAGS
} else {
id
};
let rotate = match (flip_h, flip_v) {
(true, false) => convert_angle_to_rad(90.0),
(true, true) => convert_angle_to_rad(180.0),
(false, true) => convert_angle_to_rad(270.0),
(false, false) => 0.0,
};
let x = i as f32 % width as f32;
let y = (i as f32 / height as f32).floor();
let offset = (constants::TILE_WIDTH / 2.0) * constants::TILE_SCALE;
let destination = Point2::new(
(constants::TILE_WIDTH * constants::TILE_SCALE * x) + offset,
(constants::TILE_HEIGHT * constants::TILE_SCALE * y) + offset,
);
Tile {
//id,
source: tileset.tiles[id as usize],
//animation: None,
rotate,
destination,
}
}
pub fn draw(&self, spritebatch: &mut SpriteBatch) {
let draw_param = DrawParam::default()
.src(self.source)
.rotation(self.rotate)
.offset(Point2::new(0.5, 0.5))
.dest(self.destination)
.scale(Vector2::new(constants::TILE_SCALE, constants::TILE_SCALE));
spritebatch.add(draw_param);
}
}
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