From f449345e3aeb599eb497dfeeac7027cf4d1de515 Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Wed, 3 Feb 2021 00:52:47 -0500
Subject: Pulled transform stuff into a system (starting to do ECS stuff)

---
 src/transform_system.cpp | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 src/transform_system.cpp

(limited to 'src/transform_system.cpp')

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);
+  }
+}
-- 
cgit 1.4.1