Change api

Author: WiktorJanecki

examples/1.rs

@@ -57,7 +57,7 @@ fn main() -> Result<(), String> {
  .with_effect(lib::ParticleEffect::LinearMovement{velocity_x:random_velocity_x,velocity_y: -200.0})
  .build();
 
- particles_state.emit(5, emitting_type, 400.0, 300.0);
+ particles_state.emit(5, &emitting_type, 400.0, 300.0);
  particles_state.update(dt);
 
  canvas.set_draw_color(Color::RGB(0, 128, 255));

examples/2.rs

@@ -59,7 +59,7 @@ fn main() -> Result<(), String> {
  .with_effect(lib::ParticleEffect::FadeOut{delay: Duration::from_secs_f32(1.0)})
  .build();
 
- particles_state.emit(5, emitting_type, 400.0, 600.0);
+ particles_state.emit(5, &emitting_type, 400.0, 600.0);
  particles_state.update(dt);
 
  canvas.set_draw_color(Color::RGB(0, 128, 255));

src/lib.rs

@@ -33,7 +33,7 @@ impl ParticlesState {
  pub fn emit(
  self: &mut Self,
  emitting_count: u32,
- emitting_type: ParticleType,
+ emitting_type: &ParticleType,
  pos_x: f32,
  pos_y: f32,
  ) {
@@ -117,6 +117,8 @@ pub struct ParticlesState {
  pool: Vec<Particle>,
  emitting_index: usize,
 }
+
+#[derive(Clone)]
 struct Particle {
  pos_x: f32,
  pos_y: f32,
@@ -152,13 +154,16 @@ impl Particle {
  }
 }
 
+#[derive(Clone)]
 pub struct ParticleType {
  effects: Vec<ParticleEffect>,
  lifetime: f32,
  size_x: u32,
  size_y: u32,
  color: Color,
 }
+
+#[derive(Clone, Copy)]
 pub enum ParticleEffect {
  ConstantRotation{angle:f32},
  LinearMovement{velocity_x:f32, velocity_y:f32},
@@ -238,7 +243,7 @@ mod tests {
  let ptype = crate::ParticleTypeBuilder::new(16, 16, Duration::from_secs(4))
  .with_effect(crate::ParticleEffect::LinearMovement{velocity_x:5.0, velocity_y:4.0})
  .build();
- particles_state.emit(4, ptype, 0.0, 0.0);
+ particles_state.emit(4, &ptype, 0.0, 0.0);
  particles_state.update(Duration::from_secs(2));
  let last = particles_state.pool.get_mut(3).unwrap();
  assert_eq!(last.pos_x, 10.0);
@@ -253,7 +258,7 @@ mod tests {
  let ptype = crate::ParticleTypeBuilder::new(16, 16, Duration::from_secs(4))
  .with_effect(crate::ParticleEffect::FadeOut{delay: Duration::from_secs_f32(2.0)})
  .build();
- particles_state.emit(4, ptype, 0.0, 0.0);
+ particles_state.emit(4, &ptype, 0.0, 0.0);
  {
  let last = particles_state.pool.get_mut(3).unwrap();
  assert_eq!(last.alpha, 255.0);