Hi All!

I've not seen anything on the forums or wiki that provides quite this functionality, so I thought I'd share it. I've created a system that will determine the distance between two units' x and y coordinates. It utilizes location shifting to ignore one coordinate at a time. In my sample map you can see this happening along the top and left edges of the map. Your zergling and marine's movements are tracked by burrowed zerglings. Then it's a simple pseudo-grid (It can't place a location at a specified destination, only detect units) to compare the distance between the x-zerglings and the y-zerglings. The advantage is that this pseudo-grid utilizes 30 locations, but can cover most of the map!

The sample map can determine the distance between x and y coordinates up to 224 pixels (7 tiles) with an accuracy of 8 pixels, rounded down. A pixel accurate version could be created using more locations. I've used zerglings, which are 16x16 pixels, so to detect distances smaller than 8 pixels I would need to use inverted locations. I believe a hybrid with a static grid along the axes could be used to increase the maximum distance detectable to the map size, at the cost of units.

I used the trigger generator LIT, so I'm including the lua file and a link to CecilSunkure's thread for LIT.

RelativeDistance.scx

Attachments:

Post has been edited 2 time(s), last time on Jan 3 2019, 4:04 am by goobie.

Do you know that SCR supports EUD actions, such as being able to read and write the specific Left/Right/Top/Bottom positions of locations?

I'm trying to avoid EUDs as in my experience they break replay and save functionality in SC remaster. But it is good to know EUDs can access location data directly, I was not aware of that!

Yes, EUDs break saves, replays, extended unit limits, and several triggers like set next scenario as far as I remember. Maybe someone has a complete list of functions that are disabled by using EUDs in 1.2+.

I like this, a simple way of grabbing coordinate differences; here's one existing alternative:

You should be able to get single coordinate accuracy using Exact Coordinate Detection then calculating the difference (which is the leftover amount when doing a binary countoff to zero e.g. if a > 4096 && b > 4096 then a -= 4096, b -= 4096; difference can be easily optimized).

I knitted together that, Precise Location Placement, and some EUD conditions to make a little shooter.

I've moved this thread to theories.