Codechange: Replace Group::replace_protection with Group::flags

src/autoreplace.cpp

@@ -11,6 +11,7 @@
 #include "command_func.h"
 #include "group.h"
 #include "autoreplace_base.h"
+#include "core/bitmath_func.hpp"
 #include "core/pool_func.hpp"
 
 #include "safeguards.h"
@@ -64,7 +65,7 @@ void RemoveAllEngineReplacement(EngineRenewList *erl)
 EngineID EngineReplacement(EngineRenewList erl, EngineID engine, GroupID group, bool *replace_when_old)
 {
 	const EngineRenew *er = GetEngineReplacement(erl, engine, group);
-	if (er == nullptr && (group == DEFAULT_GROUP || (Group::IsValidID(group) && !Group::Get(group)->replace_protection))) {
+	if (er == nullptr && (group == DEFAULT_GROUP || (Group::IsValidID(group) && !HasBit(Group::Get(group)->flags, GroupFlags::GF_REPLACE_PROTECTION)))) {
 		/* We didn't find anything useful in the vehicle's own group so we will try ALL_GROUP */
 		er = GetEngineReplacement(erl, engine, ALL_GROUP);
 	}

src/group.h

@@ -62,13 +62,17 @@ struct GroupStatistics {
 	static void UpdateAutoreplace(CompanyID company);
 };
 
+enum GroupFlags : uint8 {
+	GF_REPLACE_PROTECTION, ///< If set to true, the global autoreplace has no effect on the group
+};
+
 /** Group data. */
 struct Group : GroupPool::PoolItem<&_group_pool> {
 	std::string name;           ///< Group Name
 	Owner owner;                ///< Group Owner
 	VehicleType vehicle_type;   ///< Vehicle type of the group
 
-	bool replace_protection;    ///< If set to true, the global autoreplace have no effect on the group
+	uint8 flags;                ///< Group flags
 	Livery livery;              ///< Custom colour scheme for vehicles in this group
 	GroupStatistics statistics; ///< NOSAVE: Statistics and caches on the vehicles in the group.
 

src/group_cmd.cpp

@@ -315,7 +315,7 @@ CommandCost CmdCreateGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
 
 	if (flags & DC_EXEC) {
 		Group *g = new Group(_current_company);
-		g->replace_protection = false;
+		ClrBit(g->flags, GroupFlags::GF_REPLACE_PROTECTION);
 		g->vehicle_type = vt;
 		g->parent = INVALID_GROUP;
 
@@ -668,12 +668,18 @@ CommandCost CmdSetGroupLivery(TileIndex tile, DoCommandFlag flags, uint32 p1, ui
  * @param g initial group.
  * @param protect 1 to set or 0 to clear protection.
  */
-static void SetGroupReplaceProtection(Group *g, bool protect)
+static void SetGroupReplaceProtection(Group *g, bool protect, bool children)
 {
-	g->replace_protection = protect;
+	if (protect) {
+		SetBit(g->flags, GroupFlags::GF_REPLACE_PROTECTION);
+	} else {
+		ClrBit(g->flags, GroupFlags::GF_REPLACE_PROTECTION);
+	}
+
+	if (!children) return;
 
 	for (Group *pg : Group::Iterate()) {
-		if (pg->parent == g->index) SetGroupReplaceProtection(pg, protect);
+		if (pg->parent == g->index) SetGroupReplaceProtection(pg, protect, true);
 	}
 }
 
@@ -695,11 +701,7 @@ CommandCost CmdSetGroupReplaceProtection(TileIndex tile, DoCommandFlag flags, ui
 	if (g == nullptr || g->owner != _current_company) return CMD_ERROR;
 
 	if (flags & DC_EXEC) {
-		if (HasBit(p2, 1)) {
-			SetGroupReplaceProtection(g, HasBit(p2, 0));
-		} else {
-			g->replace_protection = HasBit(p2, 0);
-		}
+		SetGroupReplaceProtection(g, HasBit(p2, 0), HasBit(p2, 1));
 
 		SetWindowDirty(GetWindowClassForVehicleType(g->vehicle_type), VehicleListIdentifier(VL_GROUP_LIST, g->vehicle_type, _current_company).Pack());
 		InvalidateWindowData(WC_REPLACE_VEHICLE, g->vehicle_type);

src/group_gui.cpp

@@ -533,7 +533,7 @@ public:
 
 		/* If not a default group and the group has replace protection, show an enabled replace sprite. */
 		uint16 protect_sprite = SPR_GROUP_REPLACE_OFF_TRAIN;
-		if (!IsDefaultGroupID(this->vli.index) && !IsAllGroupID(this->vli.index) && Group::Get(this->vli.index)->replace_protection) protect_sprite = SPR_GROUP_REPLACE_ON_TRAIN;
+		if (!IsDefaultGroupID(this->vli.index) && !IsAllGroupID(this->vli.index) && HasBit(Group::Get(this->vli.index)->flags, GroupFlags::GF_REPLACE_PROTECTION)) protect_sprite = SPR_GROUP_REPLACE_ON_TRAIN;
 		this->GetWidget<NWidgetCore>(WID_GL_REPLACE_PROTECTION)->widget_data = protect_sprite + this->vli.vtype;
 
 		/* Set text of "group by" dropdown widget. */
@@ -601,7 +601,7 @@ public:
 
 					assert(g->owner == this->owner);
 
-					DrawGroupInfo(y1, r.left, r.right, g->index, this->indents[i] * LEVEL_WIDTH, g->replace_protection, g->folded || (i + 1 < (int)this->groups.size() && indents[i + 1] > this->indents[i]));
+					DrawGroupInfo(y1, r.left, r.right, g->index, this->indents[i] * LEVEL_WIDTH, HasBit(g->flags, GroupFlags::GF_REPLACE_PROTECTION), g->folded || (i + 1 < (int)this->groups.size() && indents[i + 1] > this->indents[i]));
 
 					y1 += this->tiny_step_height;
 				}
@@ -798,7 +798,7 @@ public:
 			case WID_GL_REPLACE_PROTECTION: {
 				const Group *g = Group::GetIfValid(this->vli.index);
 				if (g != nullptr) {
-					DoCommandP(0, this->vli.index, (g->replace_protection ? 0 : 1) | (_ctrl_pressed << 1), CMD_SET_GROUP_REPLACE_PROTECTION);
+					DoCommandP(0, this->vli.index, (HasBit(g->flags, GroupFlags::GF_REPLACE_PROTECTION) ? 0 : 1) | (_ctrl_pressed << 1), CMD_SET_GROUP_REPLACE_PROTECTION);
 				}
 				break;
 			}

src/saveload/group_sl.cpp

@@ -21,7 +21,7 @@ static const SaveLoad _group_desc[] = {
 	SLE_CONDNULL(2,                                                         SL_MIN_VERSION,  SLV_164), // num_vehicle
 	     SLE_VAR(Group, owner,              SLE_UINT8),
 	     SLE_VAR(Group, vehicle_type,       SLE_UINT8),
-	     SLE_VAR(Group, replace_protection, SLE_BOOL),
+	     SLE_VAR(Group, flags,              SLE_UINT8),
 	 SLE_CONDVAR(Group, livery.in_use,      SLE_UINT8,                     SLV_GROUP_LIVERIES, SL_MAX_VERSION),
 	 SLE_CONDVAR(Group, livery.colour1,     SLE_UINT8,                     SLV_GROUP_LIVERIES, SL_MAX_VERSION),
 	 SLE_CONDVAR(Group, livery.colour2,     SLE_UINT8,                     SLV_GROUP_LIVERIES, SL_MAX_VERSION),

src/script/api/script_group.cpp

@@ -96,7 +96,7 @@
 {
 	if (!IsValidGroup(group_id)) return false;
 
-	return ::Group::Get(group_id)->replace_protection;
+	return HasBit(::Group::Get(group_id)->flags, GroupFlags::GF_REPLACE_PROTECTION);
 }
 
 /* static */ int32 ScriptGroup::GetNumEngines(GroupID group_id, EngineID engine_id)