/* yx_uint16.c */
-
-
-#include "yx_uint16.h" /* for uint8_t, uint16_t */
+#include "yx_uint16.h"
+#include <stdint.h> /* for uint8_t, uint16_t */
{
return 1;
}
- else
- {
- return 0;
- }
+ return 0;
}
extern struct yx_uint16 mv_yx_in_dir(char d, struct yx_uint16 yx)
{
- if (d == 'N')
+ if (d == 'N' && yx.y > 0)
{
yx.y--;
}
- else if (d == 'E')
+ else if (d == 'E' && yx.x < UINT16_MAX)
{
yx.x++;
}
- else if (d == 'S')
+ else if (d == 'S' && yx.y < UINT16_MAX)
{
yx.y++;
}
- else if (d == 'W')
+ else if (d == 'W' && yx.x > 0)
{
yx.x--;
}