Naval Blockades

[obsolete]

I'm curious, where do you see your income gained, or AI's income lost from your naval blockades? I may be missing the obvious.

 

[mechaerik]

Unless you are blockading with privateers, then your gain is 0.

Every now and then, you get money from the Privateers blockade; its announced in the feedback.

As for the AI, they cant work any water tiles blocked by the blockade, so you can just count the coins in the tiles (a unit blockades in a distance equal to its MP).

 

[nbcman]

@ obsolete
You should be able to see the income gained in the event log. It will indicate the city that is being blockaded and the amount of gold gained.

@mechaerik
You can blockade with non-privateers/non-caravels as long as you are at war with the AI that owns the city you are blockading. Caravels can never blockade.

 

[Bushface]

Unless you are blockading with privateers, then your gain is 0.

Every now and then, you get money from the Privateers blockade; its announced in the feedback.

As for the AI, they cant work any water tiles blocked by the blockade, so you can just count the coins in the tiles (a unit blockades in a distance equal to its MP).

You only get gold from privateer blockades if you are not at war with the blockaded civ, and the blockaded area is always 7x7 tiles with the blockading vessel at the centre. Blockade affects only sea tiles but can reach across narrow strips of land.

 

[obsolete]

Hmm. I had always assumed blockades would halt the city's coastal trade-route? I could swear this was discussed before. If it doesn't it certainly SHOULD be that way.

I don't get why the manual says destroyers and Galleons can blockade the tile they are on, since any unit on any tile when at war blocks that tile from being worked anyhow, except maybe scouts?

 

[ParadigmShifter]

I think it does stop coastal trade routes too, I was blockaded and lost alot of trade route income. Not sure about resources though, I think those are blocked as well but it mainly affects 1 tile island cities.

 

[Dida]

Blockade does stop coastal trade, but to cut off a city completely from trade you must block every city on that continent. Land routes cannot be blocked by ships.

 

[mechaerik]

You only get gold from privateer blockades if you are not at war with the blockaded civ, and the blockaded area is always 7x7 tiles with the blockading vessel at the centre. Blockade affects only sea tiles but can reach across narrow strips of land.

Wait, isn't the blockaded area = to the movement points of the vessel? I distinctly remember this being the case somewhere.

 

[say1988]

No it isn't I have heard sight radius before, ,which is at least true for Privateers, but never checked with other units.

Hmm. I had always assumed blockades would halt the city's coastal trade-route?

But the vast majority of the time the route can go over land through another city, even yours if you don't declare war (you don't need OB for trade routes to pass through your lands), or a road o an unblockaded coastal tile, I believe should do it.
The main reason for blockades, IMO, is to cripple cities relying on seafood.

 

[DanF5771]

The blockade radius is equal for all naval units capable of blockading (=all units that can pillage) and is defined in GlobalDefines.xml SHIP_BLOCKADE_RANGE = 3.

A land tile can only function as a node linking coast-network to road-network if it has a city or a (roaded) fort on it.

 

[Refar]

all naval units capable of blockading (=all units that can pillage)

I think Caravel cann blokade but can't pillage ? Or am i mistaken ?

I don't get why the manual says destroyers and Galleons can blockade the tile they are on, since any unit on any tile when at war blocks that tile from being worked anyhow, except maybe scouts?

Sometimes you are better off not reading the manual. The one i have was obvioulsy written for a different game... Perhaps it was the game they had in mind...

 

[Gungho]

I had a privateer in a gulf, and the blockade area extended out of the gulf and up and down the coast both sides. When I repositioned it out in the open sea, the blockade area actually got smaller.

 

[DanF5771]

Refar: I guess you are mixing up

• the ability of a unit to prevent a city from working a tile in it's BFC just by sitting on that tile (the unit must be able to defend --> Scouts work, Missionaries don't, the trade network / resource availability is not affected) and
• the ability of a naval unit to blockade the 7x7 water tile area. These tiles cannot be worked either, but they can also not be part of the blockaded player's trade network.

BTW, thanks for your pdf + makefile !

 

[Supr49er]

I like it when you can blockade two cities with one Privateer.

Welcome to the Forums Gungho.

 

[FidelZandro]

It seems the AI's GNP drops when it's coastal cities are all blockaded.
Only privateers give the plunder bonus, however.
Still, you can cut off an AI's intercontinental trade routes, which is nice in late game.

 

[PieceOfMind]

Can a city still get overseas trade routes if its own access to the sea is blockaded? My guess is no, and that the city only needs to be connected to a network which is connected to the overseas city.

 

[DanF5771]

Maybe I misunderstand you here, but aren't your two assumptions contradicting each other?

Anyway, a picture is always nice/better serving to discuss and explain things, so:

My Privateer blocks all of Madrid's direct access to the ocean, but Izzy's capital still gets the intercontinental domestic trade route to Seville via the trade network Madrid - roads - Barcelona - coast - Seville.

EDIT due to increased knowledge: I was at war with Izzy in this example. The privateer did not collect any gold, that's why the possible trade routes stay intact. Madrid will lose all trade routes in times of peace. See posts below...

 

[PieceOfMind]

Maybe I misunderstand you here, but aren't your two assumptions contradicting each other?

Anyway, a picture is always nice/better serving to discuss and explain things, so:

<snip>

My Privateer blocks all of Madrid's direct access to the ocean, but Izzy's capital still gets the intercontinental domestic trade route to Seville via the trade network Madrid - roads - Barcelona - coast - Seville.

That answers my question exactly.

I should have said...

"Can a city still get overseas trade routes if its own direct access to the sea is blockaded? My guess is no yes, and that the city only needs to be connected to a network which is connected to the overseas city."

The answer, as you said is actually yes.

Trade networks are so resistant to interruption!

 

[Tephros]

When I can investigate a foreign city due to espionage and my privateer is blockading the city, it looks like the city has no trade routes at all...

And I'm not talking only about islands, but continental cities too. The islands just get chocked to death very quickly by blockading. They lose access to resources, trade routes, and their water tiles.

 

[DanF5771]

hmmm - it appears all trade routes do indeed disappear if you are at peace with the blocked player. In the above example I was currently at war with Izzy and she had all her domestic trade routes intact. Need to take a closer look ...
Thanks for pointing that out, Tephros.