Pixel mode breaks previous assumptions about layers. (we should collide at edges)

[seisatsu]

http://i.imgur.com/5Cm8A4V.png

The top of this bush should be above the player's feet, but since it's on the same layer as them they stand on it. If it were put a layer higher, their head would be under it if they approached from the bottom. Huge oversight. I'm not sure how best to fix this.

[seisatsu]

Idea: For tiles on the same layer as an entity, draw the top half of the tile above the entity and the bottom half below. @pmer would you like to take this one?

[pmer]

Sure, I'll take it.

I wonder about that idea, though. Will that work if you come at the plant from the left or right side?

[seisatsu]

Hmm, no it won't. Maybe we should do away with the whole colliding with the center of a tile thing. Then support polygons for nowalk in pixel mode. We would still need _tile_cross() but we would use a different method for collisions.

[pmer]

I would like more time to think about this. Removing it from 0.0.6a for now.

[pmer]

We could implement #92. That might provide a quicker fix more suitable for 0.0.8.

[seisatsu]

How is that?

[pmer]

Well, one of the reasons why we added the colliding with the center of a tile thing was to make it easier to walk down 1-tile-wide corridors. But #92 can also solve that problem.

[seisatsu]

How will that fix the graphical layering issue?

[pmer]

If we remove the colliding with the center of the tile and replace it with colliding at the edge of a tile then entities will no longer appear above tiles on the same layer.

[seisatsu]

I don't see what that really has to do with #92 but yes.

[pmer]

#92 keeps narrow corridors easy to move through so we don't regress in that area.

[seisatsu]

Right, I thought you were saying #92 would fix the graphical issues. We should do both.

[pmer]

Depends on #92.