wall grows proportionally

headers/cube3d_macro.h

@@ -17,6 +17,8 @@
 # define SCREEN_FOCAL 90
 /* size of a cell on the map */
 # define CELL 20
+/* height of a wall without perpectiv */
+# define WALL_HEIGHT 300
 
 /*
  * keys macro

headers/cube3d_struct.h

@@ -36,6 +36,7 @@ typedef struct		s_rcast
 	t_vec			screen_size;
 	t_vec			ray;
 	t_vec			wall;
+	int				wall_height;
 	int				screen_width;
 	int				screen_height;
 	int				cell;