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use crate::{
math::{vec2, Rect, Vec2},
time::get_frame_time,
};
#[derive(Clone, Debug)]
pub struct Animation {
pub name: String,
pub row: u32,
pub frames: u32,
pub fps: u32,
}
pub struct AnimationFrame {
pub source_rect: Rect,
pub dest_size: Vec2,
}
#[derive(Clone)]
pub struct AnimatedSprite {
tile_width: f32,
tile_height: f32,
animations: Vec<Animation>,
current_animation: usize,
time: f32,
frame: u32,
pub playing: bool,
}
impl AnimatedSprite {
pub fn new(
tile_width: u32,
tile_height: u32,
animations: &[Animation],
playing: bool,
) -> AnimatedSprite {
AnimatedSprite {
tile_width: tile_width as f32,
tile_height: tile_height as f32,
animations: animations.to_vec(),
current_animation: 0,
time: 0.0,
frame: 0,
playing,
}
}
pub fn set_animation(&mut self, animation: usize) {
self.current_animation = animation;
let animation = &self.animations[self.current_animation];
self.frame %= animation.frames;
}
pub fn current_animation(&self) -> usize {
self.current_animation
}
pub fn set_frame(&mut self, frame: u32) {
self.frame = frame;
}
pub fn update(&mut self) {
let animation = &self.animations[self.current_animation];
if self.playing {
self.time += get_frame_time();
if self.time > 1. / animation.fps as f32 {
self.frame += 1;
self.time = 0.0;
}
}
self.frame %= animation.frames;
}
pub fn frame(&self) -> AnimationFrame {
let animation = &self.animations[self.current_animation];
AnimationFrame {
source_rect: Rect::new(
self.tile_width * self.frame as f32,
self.tile_height * animation.row as f32,
self.tile_width,
self.tile_height,
),
dest_size: vec2(self.tile_width, self.tile_height),
}
}
}