add place for game window

headers/cube3d_macro.h

@@ -9,8 +9,10 @@
 # define PLR_MV 1
 /* nbr key you can press at the same time */
 # define MAX_NB_KEY 3
-/* screen definition */
-# define SCREEN_DEF 100
+/* screen width */
+# define SCREEN_WIDTH 500
+/* screen height */
+# define SCREEN_HEIGHT 200
 /* screen focal (in degree) */
 # define SCREEN_FOCAL 90
 /* size of a cell on the map */