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@ -1159,10 +1159,15 @@ static bool GrowTownWithBridge(const Town *t, const TileIndex tile, const DiagDi
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const int delta = TileOffsByDiagDir(bridge_dir);
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/* To prevent really small towns from building disproportionately
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* long bridges, make the max a function of its population. */
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int base_bridge_length = 4;
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int max_bridge_length = t->cache.population / 1000 + base_bridge_length;
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if (slope == SLOPE_FLAT) {
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/* Bridges starting on flat tiles are only allowed when crossing rivers, rails or one-way roads. */
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do {
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if (bridge_length++ >= 4) {
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if (bridge_length++ >= base_bridge_length) {
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/* Allow to cross rivers, not big lakes, nor large amounts of rails or one-way roads. */
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return false;
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}
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@ -1170,8 +1175,8 @@ static bool GrowTownWithBridge(const Town *t, const TileIndex tile, const DiagDi
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} while (IsValidTile(bridge_tile) && ((IsWaterTile(bridge_tile) && !IsSea(bridge_tile)) || IsPlainRailTile(bridge_tile) || (IsNormalRoadTile(bridge_tile) && GetDisallowedRoadDirections(bridge_tile) != DRD_NONE)));
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} else {
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do {
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if (bridge_length++ >= 11) {
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/* Max 11 tile long bridges */
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if (bridge_length++ >= max_bridge_length) {
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/* Ensure the bridge is not longer than the max allowed length. */
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return false;
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}
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bridge_tile += delta;
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