From cefe66cdbb8786dc455657376e36f0ff8785d5bc Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Thu, 8 Feb 2018 12:34:42 -0500
Subject: Introduced animated sprites

Also restyled a lot of the code.
---
 src/systems/animating.cpp | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 src/systems/animating.cpp

(limited to 'src/systems/animating.cpp')

diff --git a/src/systems/animating.cpp b/src/systems/animating.cpp
new file mode 100644
index 0000000..fcbfca5
--- /dev/null
+++ b/src/systems/animating.cpp
@@ -0,0 +1,38 @@
+#include "animating.h"
+#include "game.h"
+#include "components/animatable.h"
+
+void AnimatingSystem::tick(double)
+{
+  std::set<id_type> spriteEntities =
+    game_.getEntityManager().getEntitiesWithComponents<AnimatableComponent>();
+
+  for (id_type entity : spriteEntities)
+  {
+    auto& sprite = game_.getEntityManager().
+      getComponent<AnimatableComponent>(entity);
+
+    sprite.setCountdown(sprite.getCountdown() + 1);
+
+    const Animation& anim = sprite.getAnimation();
+    if (sprite.getCountdown() >= anim.getDelay())
+    {
+      sprite.setFrame(sprite.getFrame() + 1);
+      sprite.setCountdown(0);
+
+      if (sprite.getFrame() >= anim.getFirstFrame() + anim.getNumFrames())
+      {
+        sprite.setFrame(anim.getFirstFrame());
+      }
+    }
+  }
+}
+
+void AnimatingSystem::startAnimation(id_type entity, std::string animation)
+{
+  auto& sprite = game_.getEntityManager().
+    getComponent<AnimatableComponent>(entity);
+
+  sprite.setAnimation(animation);
+  sprite.setFrame(sprite.getAnimation().getFirstFrame());
+}
-- 
cgit 1.4.1