Correctly calculates gravity in particle systems

2016-02-16 18:25:04 -08:00 · 2016-02-16 18:25:04 -08:00 · ecfc303270
commit ecfc303270
parent ccf08e98de
1 changed files with 1 additions and 1 deletions
--- a/packages/flutter_sprites/lib/src/particle_system.dart
+++ b/packages/flutter_sprites/lib/src/particle_system.dart
@ -252,7 +252,7 @@ class ParticleSystem extends Node {
        particle.dir += accel;
      } else if (gravity[0] != 0.0 || gravity[1] != 0) {
        // gravity
-        Vector2 accel = gravity.scale(dt);
+        Vector2 accel = new Vector2.copy(gravity).scale(dt);
        particle.dir += accel;
      }