diff --git a/game.c b/game.c
index 993b283..c86f46f 100644
--- a/game.c
+++ b/game.c
@@ -49,8 +49,8 @@ void initGame()
 	// stdscr is screen created by initscr()
 	getmaxyx(stdscr, height, width);
 
-	addLinei("x:", &cursor.x);
-	addLinei("y:", &cursor.y);
+	addLinei("x:", &cursor.x, 1, UI_INT);
+	addLinei("y:", &cursor.y, 1, UI_INT);
 	
 	grid = initGrid(width, height);
 	//randomizeGrid(grid);
diff --git a/ui.c b/ui.c
index 294d92d..e2a9fcb 100644
--- a/ui.c
+++ b/ui.c
@@ -5,7 +5,10 @@
 
 typedef struct {
 	char* msg;
-	int* var;
+	void* var;
+	size_t size;
+	ui_type type;
+
 }Linei;
 
 static unsigned int ln_count = 0;
@@ -14,7 +17,7 @@ static Linei* lines = NULL;
 
 static void startUI();
 
-void addLinei(char* msg, int* var)
+void addLinei(char* msg, void* var, int size, ui_type type) 
 {
 	if (!lines) startUI();
 	else lines = realloc(lines, sizeof(Linei) * ++ln_count);
diff --git a/ui.h b/ui.h
index 9f24b81..60f84ef 100644
--- a/ui.h
+++ b/ui.h
@@ -1,9 +1,20 @@
 #ifndef UI_H
 #define UI_H
 
+#define ui_type uint8_t
+
+#define ui_int int
+#define ui_float float
+#define ui_char char
+
+#define UI_NULL 0
+#define UI_INT 1
+#define UI_FLOAT 2
+#define UI_CHAR 3
+
 //void startUI();
 
-void addLinei(char* msg, int* var);
+void addLinei(char* msg, void* var, int size, ui_type type);
 
 void drawUI();