diff --git a/Makefile b/Makefile
index 284f38c..51bc559 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # Variable
 CC = gcc
 CFLAGS = -Wall -Wextra $(shell pkg-config --cflags --libs sdl2)
-OBJ = main.o 
+OBJ = main.o function.o
 TARGET = sokoban
 
 all: $(TARGET)
@@ -9,9 +9,11 @@ all: $(TARGET)
 $(TARGET): $(OBJ)
 	$(CC) $(CFLAGS) $(OBJ) -o $(TARGET)
 
-main.c : main.c
+main.o : main.c
 	$(CC) $(CFLAGS) -c main.c
 
+function.o : function.c 
+	$(CC) $(CFLAGS) -c function
 
 clean :
 	rm -f $(OBJ) $(TARGET)
diff --git a/function.c b/function.c
index 53c5fdf..b26e16e 100644
--- a/function.c
+++ b/function.c
@@ -1 +1,41 @@
+#include "function.h"
 #include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+
+
+unsigned short int **creatArea2D(const unsigned int N)
+{
+  unsigned short int **tab2d;
+  tab2d = malloc(sizeof(unsigned short int* ) * N);
+  if (tab2d == NULL)
+  {
+    return NULL;
+  }
+
+  bool fail = false; 
+  int i;
+  for (i = 0; i < N && !fail; ++i)
+  {
+    tab2d[i] = malloc(sizeof(unsigned short int) * N);
+    if (tab2d[i] == NULL)
+    {
+      fail = true;
+    }
+  }
+
+  if (fail)
+  {
+    int j;
+    for (j = 0; j < i; ++j)
+    {
+      free(tab2d[j]);
+    }
+    free(tab2d);
+    return NULL;
+  }
+  return tab2d;
+}
+
+
diff --git a/function.h b/function.h
new file mode 100644
index 0000000..0157953
--- /dev/null
+++ b/function.h
@@ -0,0 +1,17 @@
+#ifdef FONCTION_H
+#define FONCTION_H
+
+#include <stdlib.h>
+
+#define EMPTY 0
+#define WALL 1
+#define BOX 2
+#define TARGET 3
+#define BOX_ON_TARGET 4
+#define PLAYER 5
+#define PLAYER_ON_TARGET 6
+
+unsigned short int **creatArea2D(const unsigned int N);
+#endif // FONCTION_H
+
+
diff --git a/main.c b/main.c
index 96ca265..5e0bf4e 100644
--- a/main.c
+++ b/main.c
@@ -1,7 +1,8 @@
 #include <stdio.h>
+#include "function.h"
 
 int main()
 {
-  puts("main");
+  printf("main\n");
   return 0;
 }