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Gered 2022-05-15 20:39:56 -04:00
parent 340dd445d7
commit e2888ca710
1 changed files with 7 additions and 0 deletions
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7
examples/balls_v2/src/entities.rs
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@ -144,9 +144,12 @@ fn update_system_lifetime(context: &mut Context) {
fn update_system_leave_particle_trail(context: &mut Context) {
if let Some(mut leaves_trails) = context.entities.components_mut::<LeavesTrail>() {
let positions = context.entities.components::<Position>();
for (entity, leaves_trail) in leaves_trails.iter_mut() {
leaves_trail.timer -= context.delta;
if leaves_trail.timer <= 0.0 {
leaves_trail.timer = BALL_TRAIL_PARTICLE_INTERVAL;
let position = positions.get(&entity).unwrap();
@ -161,7 +164,9 @@ fn update_system_leave_particle_trail(context: &mut Context) {
fn render_system_sprites(context: &mut Context) {
if let Some(sprite_indices) = context.entities.components::<SpriteIndex>() {
let positions = context.entities.components::<Position>();
for (entity, sprite_index) in sprite_indices.iter() {
let position = positions.get(&entity).unwrap();
context.system.video.blit(
@ -176,10 +181,12 @@ fn render_system_sprites(context: &mut Context) {
fn render_system_particles(context: &mut Context) {
if let Some(particles) = context.entities.components::<Particle>() {
let positions = context.entities.components::<Position>();
let colors = context.entities.components::<Color>();
let colors_by_lifetime = context.entities.components::<ColorByLifeTime>();
let lifetimes = context.entities.components::<LifeLeft>();
for (entity, _) in particles.iter() {
let position = positions.get(&entity).unwrap();