diff --git a/builds/draw_bonus.o b/builds/draw_bonus.o
index 96e4317..507538a 100644
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diff --git a/builds/fdf.o b/builds/fdf.o
index 3806a75..bd2ba56 100644
Binary files a/builds/fdf.o and b/builds/fdf.o differ
diff --git a/builds/keypress_bonus.o b/builds/keypress_bonus.o
index 1204a13..56a096d 100644
Binary files a/builds/keypress_bonus.o and b/builds/keypress_bonus.o differ
diff --git a/builds/modifs.o b/builds/modifs.o
index 15803a4..b1b3130 100644
Binary files a/builds/modifs.o and b/builds/modifs.o differ
diff --git a/builds/parse.o b/builds/parse.o
index 6a97970..a3c20ba 100644
Binary files a/builds/parse.o and b/builds/parse.o differ
diff --git a/fdf b/fdf
index bebbe74..7593c7f 100755
Binary files a/fdf and b/fdf differ
diff --git a/includes/fdf.h b/includes/fdf.h
index b0219b0..eb34e8b 100644
--- a/includes/fdf.h
+++ b/includes/fdf.h
@@ -77,14 +77,19 @@ int		**parse_map(t_fdf *fdf, int fd);
 // steps size for the hight transform with p and o
 // must be > 0
 // 100 is small, 1 is the biggest
-# define Z_HEIGHT			50
+# define Z_HEIGHT				100
+// then define the speed for height transform
+// must be > 0
+// 1 is small, 100 is the big
+# define Z_HEIGHT_UP		10
+# define Z_HEIGHT_DOWN	2
 
 // color for altitude
 # define COLOR_START		0xffffff
 /*
-# define COLOR_END			0x00d700 // green
-*/
 # define COLOR_END			0x1423e6 // blue
+*/
+# define COLOR_END			0x00d700 // green
 
 // minimum time in milliseconds between two keypress
 # define DEBOUNCE_TIME	40
diff --git a/srcs/keypress_bonus.c b/srcs/keypress_bonus.c
index a32920f..d2c01ee 100644
--- a/srcs/keypress_bonus.c
+++ b/srcs/keypress_bonus.c
@@ -28,10 +28,9 @@ void	keypress_more(int keycode, t_fdf *fdf)
 		fdf->zoom = 0;
 	}
 	else if (keycode == O)
-		fdf->altitude++;
+		fdf->altitude += Z_HEIGHT_UP;
 	else if (keycode == P)
-		//if (fdf->altitude > 0)
-			fdf->altitude--;
+		fdf->altitude -= Z_HEIGHT_DOWN;
 }
 
 int	should_ignore_keypress(const struct timeval *current_time, t_fdf *fdf)