Add errors

and prepare for file menu more
and fix that you can't go left right when going up down

source/err.c

@@ -0,0 +1,53 @@
+#include "err.h"
+#include "gfx/gfx.h"
+#include "hid/hid.h"
+#include "gfx/gfxutils.h"
+
+const char *fatfsErrors[] = {
+    "I/O ERROR",
+    "NO DISK",
+    "NOT READY",
+    "NO FILE",
+    "NO PATH",
+    "PATH INVALID",
+    "ACCESS DENIED",
+    "ACCESS DENIED",
+    "INVALID PTR",
+    "PROTECTED",
+    "INVALID DRIVE",
+    "NO MEM",
+    "NO FAT",
+    "MKFS ABORT"
+};
+
+const char *TEErrors[] = {
+    "Unimplemented"
+};
+
+const char *GetErrStr(u32 err){
+    --err; // obv error codes cannot be 0
+    if (err >= 0 && err < ARRAY_SIZE(fatfsErrors))
+        return fatfsErrors[err];
+
+    if (err >= 20 && err < ARRAY_SIZE(TEErrors) + 20)
+        return TEErrors[err - 20];
+
+    return "(Unknown)";
+}
+
+#define lx 256
+#define ly 240
+#define lenx 768
+#define leny 240
+
+void DrawError(ErrCode_t err){
+    SETCOLOR(COLOR_ORANGE, COLOR_DARKGREY);
+    gfx_box(lx, ly, lx + lenx, ly + leny, COLOR_ORANGE);
+    gfx_boxGrey(lx + 16, ly + 16, lx + lenx - 16, ly + leny - 16, 0x33);
+    gfx_con_setpos(lx + ((lenx - 17 * 16) / 2), ly + 32);
+    gfx_printf("An error occured!\n\n%bErr : %d\nLine: %d\nFile: %s\nDesc: %s%b", lx + 48, err.err, err.loc, err.file, GetErrStr(err.err), 0);
+    gfx_con_setpos(lx + ((lenx - 19 * 16) / 2), ly + leny - 48);
+    gfx_printf("Press A to continue");
+    
+    hidWaitMask((JoyA | JoyB));
+}