Here's something I've been playing with. It's untested, and probably won't copy/paste even with the DM tags, as I spaced everything by hand... but it's something people have asked if BYOND could handle, so I thought I'd share.

> #define BRIDGE_LAYER 5 > atom/var/elevation > turf > Enter(atom/movable/m) > //This system allows you to move between two spaces > //as normal, if they're no more than one elevation > //level different. > > if (abs(m.elevation - src.elevation) > 1) return 0 > > return ..() > ground > elevation = 1 > valley > elevation = -1 > mountain > elevation = 3 > down_slope > elevation = 0 > up_slope > elevation = 2 > bridge > elevation = 1 > layer = BRIDGE_LAYER > var/bridge_level = 3 > proc/is_open(elevation) > //check for dense objects at a given level. > for (var/atom/movable/m in src) > if (m.elevation == elevation && m.density) > return 0 > return 1 > > Enter(atom/movable/m) > //bridges can be walked across... > if (m.elevation == bridge_level) > //can I step across? > if (m.density == 0 || is_open(bridge_level)) > if (. && m.layer < BRIDGE_LAYER) > //yes I can, so why draw me under it? > spawn() m.layer += BRIDGE_LAYER > return 1 > else return 0 > //...or under > return (m.density == 0 || is_open(elevation)) > Exited(atom/movable/m) > if (m.layer > BRIDGE_LAYER) > m.layer -= BRIDGE_LAYER > //no longer on the bridge, so stop drawing me so darn high! > >

The above code is by no means flawless... I haven't tested it in the form written. One thing to consider is that elevation would not calculated as part of distance, and mobs below or above you on a bridge would be considered to be at a distance of 0.

I can't really see this technique being used for that... in a house, the top level sits over the bottom level. This is more like diagonal slopes. Most two-story house codes I've seen use different maps/z-levels, and "teleportation". This is more like having a mountains, plains, and valleys or canyons on the same map...so a player on the mountain can see one down in the valley, but they can't reach each other unless they walk up or down slopes to each other's levels.

I've seen things like it before, but having multiple levels within the same square, where you can have one player standing on a bridge and another player walking below it, isn't something I've seen anyone do.

Will do... if only to see if you and I are talking about the same thing.

[EDIT]

Downloaded the game... as soon as I ran it, I was error-spammed about ork aggression. Anyways, I found a multi-story building... and I was right, his does not do what mine does.

When you get on the roof, try stepping across the square you come up from under... you'll notice you go under it, even though you're coming at it from the side! You can also step to the left or the right of the stairs, while on the staircase, with the result that you seem to be coming up through the floor. That's the point of my bridge snippet... it allows you to create turfs that differentiate between walking across and walking under.

In that case, I may have drastically overestimated the demand for this code... anyways, my primary reason for posting was to demonstrate that it's possible, since I've had a lot of people a) ask me if it is, b) insist that it isn't, and c) ask me how to do it. So, if anyone else has any more examples to share... the more the merrier!

Will do... if only to see if you and I are talking about the same thing.

[EDIT]

Downloaded the game... as soon as I ran it, I was error-spammed about ork aggression. Anyways, I found a multi-story building... and I was right, his does not do what mine does.

When you get on the roof, try stepping across the square you come up from under... you'll notice you go under it, even though you're coming at it from the side! You can also step to the left or the right of the stairs, while on the staircase, with the result that you seem to be coming up through the floor. That's the point of my bridge snippet... it allows you to create turfs that differentiate between walking across and walking under.