1 files changed, 20 insertions, 0 deletions
diff --git a/src/transform_system.cpp b/src/transform_system.cpp
new file mode 100644
index 0000000..e53fb7d
--- /dev/null
+++ b/src/transform_system.cpp

@@ -0,0 +1,20 @@
+#include "transform_system.h"
+#include "game.h"
+void TransformSystem::initSprite(int spriteId, vec2i loc) {
+  Sprite& sprite = game_.getSprite(spriteId);
+  sprite.loc() = loc;
+  spritesByY_.emplace(loc.y(), spriteId);
+}
+void TransformSystem::moveSprite(int spriteId, vec2i newLoc) {
+  Sprite& sprite = game_.getSprite(spriteId);
+  bool changedY = (sprite.loc().y() != newLoc.y());
+  if (changedY) {
+    spritesByY_.erase(std::make_tuple(sprite.loc().y(), spriteId));
+  }
+  sprite.loc() = newLoc;
+  if (changedY) {
+    spritesByY_.emplace(newLoc.y(), spriteId);
+  }
+}

diff --git a/src/transform_system.cpp b/src/transform_system.cpp new file mode 100644 index 0000000..e53fb7d --- /dev/null +++ b/src/transform_system.cpp
@@ -0,0 +1,20 @@
	1	#include "transform_system.h"
	2	#include "game.h"
	3
	4	void TransformSystem::initSprite(int spriteId, vec2i loc) {
	5	Sprite& sprite = game_.getSprite(spriteId);
	6	sprite.loc() = loc;
	7	spritesByY_.emplace(loc.y(), spriteId);
	8	}
	9
	10	void TransformSystem::moveSprite(int spriteId, vec2i newLoc) {
	11	Sprite& sprite = game_.getSprite(spriteId);
	12	bool changedY = (sprite.loc().y() != newLoc.y());
	13	if (changedY) {
	14	spritesByY_.erase(std::make_tuple(sprite.loc().y(), spriteId));
	15	}
	16	sprite.loc() = newLoc;
	17	if (changedY) {
	18	spritesByY_.emplace(newLoc.y(), spriteId);
	19	}
	20	}