Don't create a copy of the train graphics per vehicle

2 files changed, 4 insertions, 3 deletions

diff --git a/src/train.cpp b/src/train.cpp
index d3ea7fb..cfbae97 100644
--- a/src/train.cpp
+++ b/src/train.cpp
@@ -3,6 +3,8 @@
 #include "bitmap.h"
 #include "level.h"
 
+static const Bitmap SPRITES("res/car.png");
+
 void Train::update()
 {
 	if (m_next) {
@@ -42,7 +44,7 @@ void Train::draw(Bitmap& bitmap, int xo, int yo)
 	int tx = 0;
 	if (m_dir == East || m_dir == West) tx = 24;
 
-	bitmap.blit(m_sprite, xx, yy, tx, 0, TileSize, TileSize);
+	bitmap.blit(SPRITES, xx, yy, tx, 0, TileSize, TileSize);
 }
 
 void Train::setPosition(int tx, int ty)
diff --git a/src/train.h b/src/train.h
index 178583f..d47818e 100644
--- a/src/train.h
+++ b/src/train.h
@@ -8,7 +8,7 @@ class Level;
 class Train {
 public:
 	explicit Train(Level& level)
-		: m_sprite("res/car.png"), m_level(level) { }
+		: m_level(level) { }
 
 	void update();
 	void draw(Bitmap&, int, int);
@@ -25,7 +25,6 @@ private:
 	Train* m_next { nullptr };
 	Train* m_prev { nullptr };
 
-	Bitmap m_sprite;
 	Level& m_level;
 
 	int x { 0 }, y { 0 };