Store train objects in a unique_ptr

The trains were being destructed after leaving the scope of the
addVehicle function. This change makes sure the trains stay allocated
for the entire lifetime of the level.

Fixes #2

1 files changed, 1 insertions, 3 deletions

diff --git a/src/main.cpp b/src/main.cpp
index dcd5975..25e6fea 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -46,9 +46,7 @@ int main(int argc, char** argv)
 			int my = y / Scale + yOffs;
 			auto pos = ScreenToTile({ mx, my });
 
-			Train& train = level.addVehicle();
-			train.setPosition(pos.x, pos.y);
-			train.setSpeed(0.2f);
+			level.addVehicle(pos.x, pos.y);
 		}
 	});