diff options
Diffstat (limited to 'src/tile.rs')
-rw-r--r-- | src/tile.rs | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/tile.rs b/src/tile.rs new file mode 100644 index 0000000..cb2aa83 --- /dev/null +++ b/src/tile.rs @@ -0,0 +1,90 @@ +use ggez::graphics::{spritebatch::SpriteBatch, DrawParam, Rect}; +use ggez::nalgebra::{Point2, Vector2}; +use std::time::Instant; + +use crate::constants; +use crate::math::convert_angle_to_rad; +use crate::tileset::Tileset; + +pub struct Tile { + source: Rect, + animations: Option<Vec<(usize, Rect)>>, + timer: Instant, + destination: Point2<f32>, + rotation: 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 | flip_d { + id & !constants::ALL_FLIP_FLAGS + } else { + id + }; + + let (source, rotation) = match (flip_d, flip_h, flip_v) { + (true, true, true) => (Tile::flip(tileset.get(id)), convert_angle_to_rad(90.0)), + (true, true, false) => (tileset.get(id), convert_angle_to_rad(90.0)), + (true, false, true) => (tileset.get(id), convert_angle_to_rad(270.0)), + //(true, false, false) => (), + (false, true, true) => (tileset.get(id), convert_angle_to_rad(180.0)), + (false, true, false) => (Tile::flip(tileset.get(id)), 0.0), + //(false, false, true) => (), + //(false, false, false) => (), + _ => (tileset.get(id), 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 { + source, + animations: tileset.get_animations(id), + timer: Instant::now(), + destination, + rotation, + } + } + + fn flip(rect: Rect) -> Rect { + let mut r = rect; + r.x *= -1.0; + r.x -= rect.w; + r + } + + pub fn update(&mut self) { + if let Some(animations) = &self.animations { + if let Some(mut i) = animations.iter().position(|a| a.1 == self.source) { + if self.timer.elapsed().as_millis() > animations[i].0 as u128 { + i = if i == animations.len() - 1 { 0 } else { i + 1 }; + self.source = animations[i].1; + self.timer = Instant::now() + } + } + } + } + + pub fn draw(&self, spritebatch: &mut SpriteBatch) { + let draw_param = DrawParam::default() + .src(self.source) + .dest(self.destination) + .offset(Point2::new(0.5, 0.5)) + .rotation(self.rotation) + .scale(Vector2::new(constants::TILE_SCALE, constants::TILE_SCALE)); + + spritebatch.add(draw_param); + } +} |