screenToTileCoords Calculation Issue

[technicallyerik]

I have a flat-topped tilemap setup in Tiled as follows:

<map version="1.0" orientation="hexagonal" renderorder="right-down" width="16" height="16" tilewidth="75" tileheight="65" hexsidelength="40" staggeraxis="x" staggerindex="odd" nextobjectid="9">

I'm having an issue with 'coordinateForPoint' not returning the correct coordinates for me.

I narrowed it down to this method in 'screenToTileCoords':

            if (tilemap.staggerX == true) {
                s = tilemap.sideLengthX
                r = (tileWidth - tilemap.sideLengthX) / 2
                h = tileHeight / 2
                
                pixelX -= r
                sectionX = pixelX / (r + s)
                sectionY = pixelY / (h * 2)
                
                // y-offset
                if tilemap.doStaggerX(Int(sectionX)){
                    sectionY -= 0.5
                }

Specifically: pixelX -= r. This causes pixels in the left-side tip of a flat-topped hex tile to be calculated to the previous X column. Removing this line causes pixels in the right-side tip of a flat-topped hex tile to be calculated to the next X column.

Barring any significantly more complicated calculations to figure out the column of an angled side, I split the difference with pixelX -= (r / 2) and it seems to be working 'good enough' for me. I'd appreciate your thoughts!

[mfessenden]

Thanks for bringing this to my attention! I'm currently reviewing the coordinate conversion math for before my next update - there are a few issues around this.

[mfessenden]

This has been corrected with the 1.15 release so I'm going to close this. If anything is still not working for you, feel free to open a new issue.