Add custom types for position (#15204)

Marlin/src/feature/bedlevel/bedlevel.h

@@ -38,7 +38,7 @@ void reset_bed_level();
 #endif
 
 #if EITHER(MESH_BED_LEVELING, PROBE_MANUALLY)
-  void _manual_goto_xy(const float &x, const float &y);
+  void _manual_goto_xy(const xy_pos_t &pos);
 #endif
 
 /**
@@ -57,11 +57,6 @@ class TemporaryBedLevelingState {
 
   typedef float bed_mesh_t[GRID_MAX_POINTS_X][GRID_MAX_POINTS_Y];
 
-  typedef struct {
-    int8_t x_index, y_index;
-    float distance; // When populated, the distance from the search location
-  } mesh_index_pair;
-
   #if ENABLED(AUTO_BED_LEVELING_BILINEAR)
     #include "abl/abl.h"
   #elif ENABLED(AUTO_BED_LEVELING_UBL)
@@ -71,6 +66,7 @@ class TemporaryBedLevelingState {
   #endif
 
   #define Z_VALUES(X,Y) Z_VALUES_ARR[X][Y]
+  #define _GET_MESH_POS(M) { _GET_MESH_X(M.a), _GET_MESH_Y(M.b) }
 
   #if EITHER(AUTO_BED_LEVELING_BILINEAR, MESH_BED_LEVELING)
 
@@ -85,4 +81,18 @@ class TemporaryBedLevelingState {
 
   #endif
 
+  struct mesh_index_pair {
+    xy_int8_t pos;
+    float distance;   // When populated, the distance from the search location
+    void invalidate() { pos = -1; }
+    bool valid() const { return pos.x >= 0 && pos.y >= 0; }
+    #if ENABLED(AUTO_BED_LEVELING_UBL)
+      xy_pos_t meshpos() {
+        return { ubl.mesh_index_to_xpos(pos.x), ubl.mesh_index_to_ypos(pos.y) };
+      }
+    #endif
+    operator xy_int8_t&() { return pos; }
+    operator const xy_int8_t&() const { return pos; }
+  };
+
 #endif