Moved sprite rendering into AnimatingSystem

Refactored how systems work slightly. Now, rendering can be done by a number of systems working together. Since the AnimatingSystem handles the animation of sprites, it should also handle the rendering of them. Because of this, the RenderingSystem has been removed.

1 files changed, 30 insertions, 0 deletions

@@ -1,6 +1,7 @@
 #include "animating.h"
 #include "game.h"
 #include "components/animatable.h"
+#include "components/transformable.h"
 
 void AnimatingSystem::tick(double)
 {
@@ -28,6 +29,35 @@ void AnimatingSystem::tick(double)
   }
 }
 
+void AnimatingSystem::render(Texture& texture)
+{
+  std::set<id_type> spriteEntities =
+    game_.getEntityManager().getEntitiesWithComponents<
+      AnimatableComponent,
+      TransformableComponent>();
+
+  for (id_type entity : spriteEntities)
+  {
+    auto& sprite = game_.getEntityManager().
+      getComponent<AnimatableComponent>(entity);
+
+    auto& transform = game_.getEntityManager().
+      getComponent<TransformableComponent>(entity);
+
+    Rectangle dstrect {
+      static_cast<int>(transform.getX()),
+      static_cast<int>(transform.getY()),
+      transform.getW(),
+      transform.getH()};
+
+    const AnimationSet& aset = sprite.getAnimationSet();
+    texture.blit(
+      aset.getTexture(),
+      aset.getFrameRect(sprite.getFrame()),
+      dstrect);
+  }
+}
+
 void AnimatingSystem::startAnimation(id_type entity, std::string animation)
 {
   auto& sprite = game_.getEntityManager().