/*
* Find the distance from (x, y) to a line.
*/
-int dist_to_line(int y, int x, int y1, int x1, int y2, int x2)
+POSITION dist_to_line(POSITION y, POSITION x, POSITION y1, POSITION x1, POSITION y2, POSITION x2)
{
/* Vector from (x, y) to (x1, y1) */
- int py = y1 - y;
- int px = x1 - x;
+ POSITION py = y1 - y;
+ POSITION px = x1 - x;
/* Normal vector */
- int ny = x2 - x1;
- int nx = y1 - y2;
+ POSITION ny = x2 - x1;
+ POSITION nx = y1 - y2;
- /* Length of N */
- int pd = distance(y1, x1, y, x);
- int nd = distance(y1, x1, y2, x2);
+ /* Length of N */
+ POSITION pd = distance(y1, x1, y, x);
+ POSITION nd = distance(y1, x1, y2, x2);
if (pd > nd) return distance(y, x, y2, x2);
/* Component of P on N */
nd = ((nd) ? ((py * ny + px * nx) / nd) : 0);
- /* Absolute value */
- return((nd >= 0) ? nd : 0 - nd);
+ /* Absolute value */
+ return((nd >= 0) ? nd : 0 - nd);
}
/*
* breath shape
*/
-void breath_shape(u16b *path_g, int dist, int *pgrids, POSITION *gx, POSITION *gy, POSITION *gm, int *pgm_rad, POSITION rad, POSITION y1, POSITION x1, POSITION y2, POSITION x2, int typ)
+void breath_shape(u16b *path_g, int dist, int *pgrids, POSITION *gx, POSITION *gy, POSITION *gm, POSITION *pgm_rad, POSITION rad, POSITION y1, POSITION x1, POSITION y2, POSITION x2, int typ)
{
POSITION by = y1;
POSITION bx = x1;