diff --git a/include/render/bitmap.h b/include/render/bitmap.h
index 2850343..28f5a16 100644
--- a/include/render/bitmap.h
+++ b/include/render/bitmap.h
@@ -6,9 +6,6 @@
    1 dans layout -> 1 dans color -> noir
    					0 dans color -> blanc */
 
-
-
-
 struct bitmap_rich_8
 {
 	uint32_t size_x,
@@ -34,4 +31,14 @@ struct bitmap_rich_32
 
 	uint32_t * color;
 	uint32_t * layout;
-};
\ No newline at end of file
+};
+
+
+/* bitmap_get_color_<type>(int x, int y)
+   returns a color coded in 2 bytes
+   byte 7 -> layout (visible, invisible)
+   byte 6 -> color (N || B) */
+
+uint8_t bitmap_get_color_8(int x, int y);
+uint8_t bitmap_get_color_16(int x, int y);
+uint8_t bitmap_get_color_32(int x, int y);
\ No newline at end of file
diff --git a/src/render/bitmap.c b/src/render/bitmap.c
index 1846d85..3b61809 100644
--- a/src/render/bitmap.c
+++ b/src/render/bitmap.c
@@ -1,3 +1 @@
-#include <bitmap.h>
-
-bool
\ No newline at end of file
+#include <bitmap.h>
\ No newline at end of file