diff options
Diffstat (limited to 'src/crepe/system')
| -rw-r--r-- | src/crepe/system/ParticleSystem.cpp | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/src/crepe/system/ParticleSystem.cpp b/src/crepe/system/ParticleSystem.cpp index a56de60..f98f245 100644 --- a/src/crepe/system/ParticleSystem.cpp +++ b/src/crepe/system/ParticleSystem.cpp @@ -71,24 +71,25 @@ void ParticleSystem::check_bounds(ParticleEmitter & emitter, const Transform & t float half_width = emitter.data.boundary.width / 2.0; float half_height = emitter.data.boundary.height / 2.0; - const float LEFT = offset.x - half_width; - const float RIGHT = offset.x + half_width; - const float TOP = offset.y - half_height; - const float BOTTOM = offset.y + half_height; + float left = offset.x - half_width; + float right = offset.x + half_width; + float top = offset.y - half_height; + float bottom = offset.y + half_height; for (Particle & particle : emitter.particles) { const vec2 & position = particle.position; - bool within_bounds = (position.x >= LEFT && position.x <= RIGHT && position.y >= TOP - && position.y <= BOTTOM); + bool within_bounds = (position.x >= left && position.x <= right && position.y >= top + && position.y <= bottom); + //if not within bounds do a reset or stop velocity if (!within_bounds) { if (emitter.data.boundary.reset_on_exit) { particle.active = false; } else { particle.velocity = {0, 0}; - if (position.x < LEFT) particle.position.x = LEFT; - else if (position.x > RIGHT) particle.position.x = RIGHT; - if (position.y < TOP) particle.position.y = TOP; - else if (position.y > BOTTOM) particle.position.y = BOTTOM; + if (position.x < left) particle.position.x = left; + else if (position.x > right) particle.position.x = right; + if (position.y < top) particle.position.y = top; + else if (position.y > bottom) particle.position.y = bottom; } } } |