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Make grow/shrink relative.

This commit is contained in:
Thomas Gideon 2017-08-08 13:11:28 -04:00
parent 9d5b6af8d2
commit 0984bc62e3
1 changed files with 23 additions and 14 deletions
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37
src/mobs/hero.rs
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@ -15,12 +15,21 @@ pub struct Hero {
pub dir: (f64, f64),
pub x: f64,
pub y: f64,
pub size: u32,
pub size: f64,
w: f64,
h: f64,
collider: Cuboid2<f64>,
}
const BASE_SIZE: f64 = 500.0;
const GROWTH_FACTOR: f64 = 50.0;
const SHRINK_FACTOR: f64 = 1.0;
const GROW_SHRINK_DUR: f64 = 5.0;
const MOVE_DUR: f64 = 0.75;
const ACCEL: f64 = 2.0;
impl Hero {
pub fn new(w: &mut PistonWindow, scene: &mut Scene<Texture<Resources>>) -> Hero {
let assets = find_folder::Search::ParentsThenKids(3, 3)
@ -42,7 +51,7 @@ impl Hero {
h: bounds[3],
dir: (0.0, 0.0),
sprite_id: sprite_id,
size: 2000,
size: BASE_SIZE,
collider: Cuboid2::new(Vector2::new(bounds[2], bounds[3])),
}
}
@ -63,38 +72,38 @@ impl Hero {
sprite.set_position(self.x, self.y);
}
}
let mov_x = self.dir.0 * 2.0;
let mov_y = self.dir.1 * 2.0;
let mov_x = self.dir.0 * ACCEL;
let mov_y = self.dir.1 * ACCEL;
scene.run(self.sprite_id,
&Action(Ease(EaseFunction::CubicOut,
Box::new(MoveBy(dt * 0.75, mov_x, mov_y)))));
Box::new(MoveBy(dt * MOVE_DUR, mov_x, mov_y)))));
}
pub fn grow(&mut self, scene: &mut Scene<Texture<Resources>>, dt: f64) {
self.size += GROWTH_FACTOR;
scene.run(self.sprite_id,
&Action(Ease(EaseFunction::ElasticInOut,
Box::new(ScaleTo(dt * GROW_SHRINK_DUR, self.size / BASE_SIZE, self.size / BASE_SIZE)))));
if let Some(sprite) = scene.child(self.sprite_id) {
self.size += 60;
let bounds = sprite.bounding_box();
self.w = bounds[2];
self.h = bounds[3];
self.collider = Cuboid2::new(Vector2::new(bounds[2], bounds[3]));
}
scene.run(self.sprite_id,
&Action(Ease(EaseFunction::ElasticInOut,
Box::new(ScaleBy(dt * 5.0, 0.3, 0.3)))));
}
pub fn shrink(&mut self, scene: &mut Scene<Texture<Resources>>, dt: f64) {
if self.size > 0 {
if self.size > 0.0 {
self.size -= SHRINK_FACTOR;
scene.run(self.sprite_id,
&Action(Ease(EaseFunction::ElasticInOut,
Box::new(ScaleTo(dt * GROW_SHRINK_DUR, self.size / BASE_SIZE, self.size / BASE_SIZE)))));
if let Some(sprite) = scene.child(self.sprite_id) {
self.size -= 1;
let bounds = sprite.bounding_box();
self.w = bounds[2];
self.h = bounds[3];
self.collider = Cuboid2::new(Vector2::new(bounds[2], bounds[3]));
}
scene.run(self.sprite_id,
&Action(Ease(EaseFunction::ElasticInOut,
Box::new(ScaleBy(dt * 5.0, -0.005, -0.005)))));
}
}