Allow using own graphics files and implement automated mapping of graphic files indexes

[andreas-eberle]

This is required for #663. Implements #573

[andreas-eberle]

@jaschaio: I added one direction of the cargo ship images you provided me. Are you making good progress with the other images? When you have them, I can tell you how they need to be added to the repository to make them work in the game.

[jaschaio]

@andreas-eberle Great to see that you are making progress! Had a bit of difficulties balancing the creation of the images with other responsibilities. Sorry for that! But I will send the last images missing to finish the cargo ship next sunday. Probably the best if you just continue to include them yourself. Did you notice any problem with the existing images I should be aware of?

[andreas-eberle]

@jaschaio: No worries. I'm glad you have some progress on the images.

There are three addtional things I need:

• To integrate the images into the game, we also need offsets for them. These offsets are needed to 1. get the center of the ships to where the ship is on the map and 2. put the parts of the ships together in the right place. Can you provide these offsets for your images? I guess you draw them in layers and thus that shouldn't be too much of a hassle, or is it? You can have a look at the images I already added. The .offset files are simple text files containing the x and y offset. Would be cool, if you can send me these offsets, so I don't have to find them by manually putting the images over each other and guessing them ;)

• I found out why there also is a complete boat image without a sail in the original graphics: It is used to display the boat while it is constructed. Can you also generate such images for every direction?

• We also need two very small boat images for the buttons in the dock where the player can select which type of boat he wants to be build. I can provide you the details for those via Discord.

No worries about the timing. We're glad to get these graphics. If you have any questions, just reach out to me on Discord.

[jaschaio]

Hey Andreas, finally finished the last two images and sended it via discord.

Offsets: This is indeed probably easier for me than for you as I have drawn them in layers in a photoshop file. Unfortunately I am unsure from which point exactly are those offsets calculated? Do you have photoshop and could "read them out" yourself? Or would an image like the following already help:

So for example measuring the offset from the uppermost left corner of the green image which is 0 0, the pink would be -1 -7 and the blue 51 25. (First the Y offset measured from the uppermost left corner of the left image and than the X offset) Its missing the colored part of the sail but that should have the exact same measurements than the pole and as well the same offsets.

Boats in Construction: Could you send me the reference images via discord? Should be easy to do as they are like I remember them.

Buttons: Added to my todo 😅

[andreas-eberle]

Hi @jaschaio,

At first: thanks for your work!

• Can you create a pull request against the newly created custom-graphics repository of the jsettlers team and add the Photoshop files there? This way we have them in the future if we'd want to change something. Please put them in the folder movables/cargo_ship/ and name the files north, north_east, south_east, south, south_west, north_west.

• Regarding the offsets: I hae Photoshop and thus could read them out myself. That's probably the easiest way.

• Boats in Construction: I'll send you the images.

Looking forward to the next images ;)