1 files changed, 22 insertions, 2 deletions
diff --git a/src/ray.c b/src/ray.c
index ad69902..81cc808 100644
--- a/src/ray.c
+++ b/src/ray.c
@@ -16,17 +16,29 @@
  */
 #include "config.h"
 
+#include <limits.h>
 #include <raylib.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
 
 #include "disp.h"
 
 #define DEFAULT_HEIGHT 200
-#define DEFAULT_WIDTH 16*9/DEFAULT_HEIGHT
+#define DEFAULT_WIDTH 16*DEFAULT_HEIGHT/9
 
 void
 init(void)
 {
+	printf("info: raylib interface initialized\n");
 	InitWindow(DEFAULT_WIDTH, DEFAULT_HEIGHT, "calculer");
+
+	if (!IsWindowReady())
+	{
+		fprintf(stderr, "calculer: error initialiazing Raylib \
+window\n");
+		exit(1);
+	}
 	SetTargetFPS(24);
 }
 
@@ -39,7 +51,15 @@ display_calc(int x, int y)
 int
 read_input(void)
 {
-	
+	if (!WindowShouldClose())
+	{
+		sleep(1);
+		return 0;
+	}
+	else
+	{
+		return INT_MAX;
+	}
 }
 
 void