Codechange: Replace FOR_ALL_OBJECTS with range-based for loops

src/newgrf_object.cpp

@@ -186,8 +186,7 @@ static uint32 GetNearbyObjectTileInformation(byte parameter, TileIndex tile, Obj
 static uint32 GetClosestObject(TileIndex tile, ObjectType type, const Object *current)
 {
 	uint32 best_dist = UINT32_MAX;
-	const Object *o;
-	FOR_ALL_OBJECTS(o) {
+	for (const Object *o : Object::Iterate()) {
 		if (o->type != type || o == current) continue;
 
 		best_dist = min(best_dist, DistanceManhattan(tile, o->location.tile));

src/object_base.h

@@ -78,9 +78,6 @@ protected:
 	static uint16 counts[NUM_OBJECTS]; ///< Number of objects per type ingame
 };
 
-#define FOR_ALL_OBJECTS_FROM(var, start) FOR_ALL_ITEMS_FROM(Object, object_index, var, start)
-#define FOR_ALL_OBJECTS(var) FOR_ALL_OBJECTS_FROM(var, 0)
-
 /**
  * Keeps track of removed objects during execution/testruns of commands.
  */

src/object_cmd.cpp

@@ -173,8 +173,7 @@ void UpdateCompanyHQ(TileIndex tile, uint score)
  */
 void UpdateObjectColours(const Company *c)
 {
-	Object *obj;
-	FOR_ALL_OBJECTS(obj) {
+	for (Object *obj : Object::Iterate()) {
 		Owner owner = GetTileOwner(obj->location.tile);
 		/* Not the current owner, so colour doesn't change. */
 		if (owner != c->index) continue;

src/saveload/afterload.cpp

@@ -253,8 +253,7 @@ static void InitializeWindowsAndCaches()
 	}
 
 	/* Count number of objects per type */
-	Object *o;
-	FOR_ALL_OBJECTS(o) {
+	for (Object *o : Object::Iterate()) {
 		Object::IncTypeCount(o->type);
 	}
 
@@ -2474,8 +2473,7 @@ bool AfterLoadGame()
 
 	/* Add (random) colour to all objects. */
 	if (IsSavegameVersionBefore(SLV_148)) {
-		Object *o;
-		FOR_ALL_OBJECTS(o) {
+		for (Object *o : Object::Iterate()) {
 			Owner owner = GetTileOwner(o->location.tile);
 			o->colour = (owner == OWNER_NONE) ? Random() & 0xF : Company::Get(owner)->livery->colour1;
 		}

src/saveload/object_sl.cpp

@@ -31,10 +31,8 @@ static const SaveLoad _object_desc[] = {
 
 static void Save_OBJS()
 {
-	Object *o;
-
 	/* Write the objects */
-	FOR_ALL_OBJECTS(o) {
+	for (Object *o : Object::Iterate()) {
 		SlSetArrayIndex(o->index);
 		SlObject(o, _object_desc);
 	}
@@ -51,8 +49,7 @@ static void Load_OBJS()
 
 static void Ptrs_OBJS()
 {
-	Object *o;
-	FOR_ALL_OBJECTS(o) {
+	for (Object *o : Object::Iterate()) {
 		SlObject(o, _object_desc);
 		if (IsSavegameVersionBefore(SLV_148) && !IsTileType(o->location.tile, MP_OBJECT)) {
 			/* Due to a small bug stale objects could remain. */

src/town_cmd.cpp

@@ -115,8 +115,7 @@ Town::~Town()
 	for (const Industry *i : Industry::Iterate()) assert(i->town != this);
 
 	/* ... and no object is related to us. */
-	const Object *o;
-	FOR_ALL_OBJECTS(o) assert(o->town != this);
+	for (const Object *o : Object::Iterate()) assert(o->town != this);
 
 	/* Check no tile is related to us. */
 	for (TileIndex tile = 0; tile < MapSize(); ++tile) {
@@ -159,8 +158,7 @@ void Town::PostDestructor(size_t index)
 	UpdateNearestTownForRoadTiles(false);
 
 	/* Give objects a new home! */
-	Object *o;
-	FOR_ALL_OBJECTS(o) {
+	for (Object *o : Object::Iterate()) {
 		if (o->town == nullptr) o->town = CalcClosestTownFromTile(o->location.tile, UINT_MAX);
 	}
 }