[SUPPORT] Advanced Turn Based Tile Toolkit

[Shenku]

@;338161

@Shenku: Oh, I see what went wrong here. I only made it so that difficult terrain is ignored (edges with a cost of 2 or below), not impassable terrain (edges with a cost of 0). That’s handled by the second and third branches in Search and Add Tile. However, you cannot simply skip these checks for flying units, as they would be able to walk through walls or leave the bounds of the grid. Solving this one was a bit more tricky, but in doing so I found a bug in the toolkit that I was not aware of, so thanks There are a few ways to do this. One is to create a separate Search And Add Tile function for flying units where you skip the branches that check if an edge costs 0 and instead check if the parent tile is on one of the grid edges, in which case you do not add the indexes to the pathfinding that are in the direction of the edge. Another version that’s quicker to implement is to use the solution I posted above, and make tiles that have a large height difference have an edge cost of 99 instead of 0. This is somewhat less efficient for pathfinding, but shouldn’t matter that much. You need to do two changes to fix this, where one of them is to fix the bug I was unaware of (which I will fix in the next update). Go to the Add Viewport Terrain To Arrays function, and replace all the nodes in the top, right comment box with this. This makes it so that height is also checked diagonally, while before it was only checked in four directions. This is something that works with edge costs of 0, but not with edge costs higher than 1. Then in the Edge Costs From Z Difference macro you will change it to this:

Okay, I added in the change for the Edge Costs From Z Difference macro, and it works like a charm. I tried to copy in the other part for fixing the bug you mentioned for square grids, but as soon as I pasted it into the Blueprint, Unreal crashed, so not sure what happened there(Probably because I’m using 4.7 maybe?)… No big loss though, since I’m using Hexes for my game anyways, and that works without the additional fix…

This will make edge costs 99 between tiles of sufficient height instead of 0, which makes it possible for flying units to ignore it, as per the previous solution. It will still look a bit weird, though, as the units are likely to clip through walls, but I’m sure you can find a solution. If not I can try to come up with some ideas.

That’s easy enough to compensate for through animations or other means, so I’m not too concerned for the moment. After some quick testing, it’s only really noticeable for some of the more extreme height changes, but with a little tweaking I think it’s manageable.