Emit events for colliding physical entities

[libs/game.git] / examples / bassteroids / source / physics.cpp

diff --git a/examples/bassteroids/source/physics.cpp b/examples/bassteroids/source/physics.cpp
index 67cdf6fe596bbf29199b7af96174c92eecaefc92..3c435026e925b057b9eaf7ee3987bd08793153c5 100644 (file)
--- a/examples/bassteroids/source/physics.cpp
+++ b/examples/bassteroids/source/physics.cpp
@@ -8,6 +8,7 @@ using namespace Msp;
 
 Physics::Physics(Game::Stage &s):
        System(s),
+       event_source(stage.get_event_bus()),
        observer(stage.get_event_bus())
 {
        observer.observe<Game::Events::EntityCreated>([this](auto &e){ entity_added(e); });
@@ -59,6 +60,9 @@ void Physics::tick(Time::TimeDelta dt)
                copy_out<true>(entities[i]);
        for(unsigned i=fixture_count; i<entities.size(); ++i)
                copy_out<false>(entities[i]);
+
+       for(const Collision &c: collisions)
+               event_source.emit<Events::Collision>(entities[c.body1].entity->get_collider(), entities[c.body2].entity->get_collider());
 }
 
 template<bool is_fixture>