1 files changed, 3 insertions, 0 deletions
diff --git a/app.hpp b/app.hpp
index 3e2ef23..9a660cf 100644
--- a/app.hpp
+++ b/app.hpp
@@ -4,6 +4,7 @@
 #define app_memory_size (1024 * 1024 * 32)
 
 #include <new>
+#include <stdint.h>
 
 struct Arena;
 
@@ -102,11 +103,13 @@ struct App_Internal;
 
 struct App {
 	Arena* arena;
+	float dt;
 	int running, w, h;
 	int mx, my;
 	int scrollx, scrolly;
 	unsigned char key_states[key_count];
 	unsigned char mbtn_states[mbtn_count];
+	uint64_t begin_t, end_t;
 	App_Internal* internal;
 
 	template <typename T>