# HG changeset patch
# User Patric Stout <truebrain@openttd.org>
# Date 2021-01-06 18:39:20
# Node ID dbb2ed121b40173a06063e8ffed53daca9144bc7
# Parent  8cc6b2a6e8f2d3c7fbedffc32db76dba6f5e3aa4

Fix: replacing a bridge didn't charge for clearing last tile

It only considered the end-tile (or start-tile) for the bridge,
instead of both. This is obvious in the rest of the code which
constantly does "+ 2"; this being the only place that does a "+ 1".

diff --git a/src/tunnelbridge_cmd.cpp b/src/tunnelbridge_cmd.cpp
--- a/src/tunnelbridge_cmd.cpp
+++ b/src/tunnelbridge_cmd.cpp
@@ -296,6 +296,7 @@ CommandCost CmdBuildBridge(TileIndex end
 	} else {
 		if (bridge_len > _settings_game.construction.max_bridge_length) return_cmd_error(STR_ERROR_BRIDGE_TOO_LONG);
 	}
+	bridge_len += 2; // begin and end tiles/ramps
 
 	int z_start;
 	int z_end;
@@ -372,7 +373,7 @@ CommandCost CmdBuildBridge(TileIndex end
 			return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
 		}
 
-		cost.AddCost((bridge_len + 1) * _price[PR_CLEAR_BRIDGE]); // The cost of clearing the current bridge.
+		cost.AddCost(bridge_len * _price[PR_CLEAR_BRIDGE]); // The cost of clearing the current bridge.
 		owner = GetTileOwner(tile_start);
 
 		/* If bridge belonged to bankrupt company, it has a new owner now */
@@ -497,7 +498,7 @@ CommandCost CmdBuildBridge(TileIndex end
 		switch (transport_type) {
 			case TRANSPORT_RAIL:
 				/* Add to company infrastructure count if required. */
-				if (is_new_owner && c != nullptr) c->infrastructure.rail[railtype] += (bridge_len + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR;
+				if (is_new_owner && c != nullptr) c->infrastructure.rail[railtype] += bridge_len * TUNNELBRIDGE_TRACKBIT_FACTOR;
 				MakeRailBridgeRamp(tile_start, owner, bridge_type, dir,                 railtype);
 				MakeRailBridgeRamp(tile_end,   owner, bridge_type, ReverseDiagDir(dir), railtype);
 				SetTunnelBridgeReservation(tile_start, pbs_reservation);
@@ -514,11 +515,11 @@ CommandCost CmdBuildBridge(TileIndex end
 					/* Add all new road types to the company infrastructure counter. */
 					if (!hasroad && road_rt != INVALID_ROADTYPE) {
 						/* A full diagonal road tile has two road bits. */
-						c->infrastructure.road[road_rt] += (bridge_len + 2) * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
+						c->infrastructure.road[road_rt] += bridge_len * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
 					}
 					if (!hastram && tram_rt != INVALID_ROADTYPE) {
 						/* A full diagonal road tile has two road bits. */
-						c->infrastructure.road[tram_rt] += (bridge_len + 2) * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
+						c->infrastructure.road[tram_rt] += bridge_len * 2 * TUNNELBRIDGE_TRACKBIT_FACTOR;
 					}
 				}
 				Owner owner_road = hasroad ? GetRoadOwner(tile_start, RTT_ROAD) : company;
@@ -529,7 +530,7 @@ CommandCost CmdBuildBridge(TileIndex end
 			}
 
 			case TRANSPORT_WATER:
-				if (is_new_owner && c != nullptr) c->infrastructure.water += (bridge_len + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR;
+				if (is_new_owner && c != nullptr) c->infrastructure.water += bridge_len * TUNNELBRIDGE_TRACKBIT_FACTOR;
 				MakeAqueductBridgeRamp(tile_start, owner, dir);
 				MakeAqueductBridgeRamp(tile_end,   owner, ReverseDiagDir(dir));
 				CheckForDockingTile(tile_start);
@@ -557,8 +558,6 @@ CommandCost CmdBuildBridge(TileIndex end
 	 * For (non-spectated) AI, Towns this has to be of course calculated. */
 	Company *c = Company::GetIfValid(company);
 	if (!(flags & DC_QUERY_COST) || (c != nullptr && c->is_ai && company != _local_company)) {
-		bridge_len += 2; // begin and end tiles/ramps
-
 		switch (transport_type) {
 			case TRANSPORT_ROAD:
 				if (road_rt != INVALID_ROADTYPE) {