4 files changed, 10 insertions, 26 deletions
diff --git a/src/ai/api/ai_bridge.cpp b/src/ai/api/ai_bridge.cpp
index f342404cf..03c457d4c 100644
--- a/src/ai/api/ai_bridge.cpp
+++ b/src/ai/api/ai_bridge.cpp
@@ -10,10 +10,11 @@
 #include "../../core/alloc_func.hpp"
 #include "../../economy_func.h"
 #include "../../settings_type.h"
+#include "../../date_func.h"
 
 /* static */ bool AIBridge::IsValidBridge(BridgeID bridge_id)
 {
-	return bridge_id < MAX_BRIDGES;
+	return bridge_id < MAX_BRIDGES && ::GetBridgeSpec(bridge_id)->avail_year <= _cur_year;
 }
 
 /* static */ bool AIBridge::IsBridgeTile(TileIndex tile)
@@ -159,13 +160,6 @@ static void _DoCommandReturnBuildBridge1(class AIInstance *instance)
 	return ::GetBridgeSpec(bridge_id)->min_length + 2;
 }
 
-/* static */ int32 AIBridge::GetYearAvailable(BridgeID bridge_id)
-{
-	if (!IsValidBridge(bridge_id)) return -1;
-
-	return ::GetBridgeSpec(bridge_id)->avail_year;
-}
-
 /* static */ TileIndex AIBridge::GetOtherBridgeEnd(TileIndex tile)
 {
 	if (!::IsValidTile(tile)) return INVALID_TILE;
diff --git a/src/ai/api/ai_bridge.hpp b/src/ai/api/ai_bridge.hpp
index a4bac67f7..befb7a02a 100644
--- a/src/ai/api/ai_bridge.hpp
+++ b/src/ai/api/ai_bridge.hpp
@@ -95,15 +95,6 @@ public:
 	 */
 	static int32 GetMinLength(BridgeID bridge_id);
 
-	/**
-	 * Get the year in which a bridge becomes available.
-	 * @param bridge_id The bridge to get the year of availability of.
-	 * @pre IsValidBridge(bridge_id).
-	 * @returns The year of availability the bridge has.
-	 * @note Years are like 2010, -10 (10 B.C.), 1950, ..
-	 */
-	static int32 GetYearAvailable(BridgeID bridge_id);
-
 #ifndef DOXYGEN_SKIP
 	/**
 	 * Internal function to help BuildBridge in case of road.
diff --git a/src/ai/api/ai_bridge.hpp.sq b/src/ai/api/ai_bridge.hpp.sq
index 7759bdbbc..be031d77d 100644
--- a/src/ai/api/ai_bridge.hpp.sq
+++ b/src/ai/api/ai_bridge.hpp.sq
@@ -41,7 +41,6 @@ void SQAIBridge_Register(Squirrel *engine) {
 	SQAIBridge.DefSQStaticMethod(engine, &AIBridge::GetPrice,          "GetPrice",          3, "?ii");
 	SQAIBridge.DefSQStaticMethod(engine, &AIBridge::GetMaxLength,      "GetMaxLength",      2, "?i");
 	SQAIBridge.DefSQStaticMethod(engine, &AIBridge::GetMinLength,      "GetMinLength",      2, "?i");
-	SQAIBridge.DefSQStaticMethod(engine, &AIBridge::GetYearAvailable,  "GetYearAvailable",  2, "?i");
 	SQAIBridge.DefSQStaticMethod(engine, &AIBridge::BuildBridge,       "BuildBridge",       5, "?iiii");
 	SQAIBridge.DefSQStaticMethod(engine, &AIBridge::RemoveBridge,      "RemoveBridge",      2, "?i");
 	SQAIBridge.DefSQStaticMethod(engine, &AIBridge::GetOtherBridgeEnd, "GetOtherBridgeEnd", 2, "?i");
diff --git a/src/ai/api/ai_bridgelist.cpp b/src/ai/api/ai_bridgelist.cpp
index 9fd6728c2..2c4f36af9 100644
--- a/src/ai/api/ai_bridgelist.cpp
+++ b/src/ai/api/ai_bridgelist.cpp
@@ -9,16 +9,16 @@
 
 AIBridgeList::AIBridgeList()
 {
-	/* Add all bridges, no matter if they are available or not */
-	for (byte j = 0; j < MAX_BRIDGES; j++)
-		if (::GetBridgeSpec(j)->avail_year <= _cur_year)
-			this->AddItem(j);
+	for (byte j = 0; j < MAX_BRIDGES; j++) {
+		if (AIBridge::IsValidBridge(j)) this->AddItem(j);
+	}
 }
 
 AIBridgeList_Length::AIBridgeList_Length(uint length)
 {
-	for (byte j = 0; j < MAX_BRIDGES; j++)
-		if (::GetBridgeSpec(j)->avail_year <= _cur_year)
-			if (length >= (uint)AIBridge::GetMinLength(j) && length <= (uint)AIBridge::GetMaxLength(j))
-				this->AddItem(j);
+	for (byte j = 0; j < MAX_BRIDGES; j++) {
+		if (AIBridge::IsValidBridge(j)) {
+			if (length >= (uint)AIBridge::GetMinLength(j) && length <= (uint)AIBridge::GetMaxLength(j)) this->AddItem(j);
+		}
+	}
 }