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Aurora.3/code/modules/multiz/basic.dm
Lohikar b4fdd35a1e MZ Fixes (#4936)
changes:

Fixes a regression in GetAbove/GetBelow() that caused passing an atom that wasn't directly on the map to return a false negative.
Fixes runtime's broken Z1 MZ by moving it to Z2.
Fixes some outdated Z-level defines on Runtime.
Moves z_levels global to SSatlas for easier debugging.
Atlas will now list the size of the world in its MC entry.
Map diffs are fucked up because of the index shift, nothing on the maps themselves was actually changed beyond adding a blank Z at the bottom.

Fixes #4692.
2018-06-26 23:16:23 +03:00

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// If you add a more comprehensive system, just untick this file.
// WARNING: Only works for up to 17 z-levels!
// If the height is more than 1, we mark all contained levels as connected.
/obj/effect/landmark/map_data/New()
SSatlas.height_markers += src
/obj/effect/landmark/map_data/proc/setup()
ASSERT(height <= z)
// Due to the offsets of how connections are stored v.s. how z-levels are indexed, some magic number silliness happened.
for(var/i = (z - height) to (z - 2))
SSatlas.z_levels |= (1 << i)
qdel(src)
/obj/effect/landmark/map_data/Destroy()
SSatlas.height_markers -= src
return ..()
// Legacy shims.
/proc/HasAbove(var/z)
return HAS_ABOVE(z)
/proc/HasBelow(var/z)
return HAS_BELOW(z)
// Thankfully, no bitwise magic is needed here.
/proc/GetAbove(atom/A)
if (!A.z)
A = get_turf(A)
return A ? GET_ABOVE(A) : null
/proc/GetBelow(atom/A)
if (!A.z)
A = get_turf(A)
return A ? GET_BELOW(A) : null
/proc/GetConnectedZlevels(z)
. = list(z)
for(var/level = z, HAS_BELOW(level), level--)
. += level-1
for(var/level = z, HAS_ABOVE(level), level++)
. += level+1
/proc/AreConnectedZLevels(var/zA, var/zB)
if (zA == zB)
return TRUE
if (SSatlas.connected_z_cache.len >= zA && SSatlas.connected_z_cache[zA])
return SSatlas.connected_z_cache[zA][zB]
var/list/levels = GetConnectedZlevels(zA)
var/list/new_entry = new(max(levels))
for (var/entry in levels)
new_entry[entry] = TRUE
if (SSatlas.connected_z_cache.len < zA)
SSatlas.connected_z_cache.len = zA
SSatlas.connected_z_cache[zA] = new_entry
return new_entry[zB]
/proc/get_zstep(atom/ref, dir)
if (!isloc(ref))
CRASH("Expected atom.")
if (!ref.z)
ref = get_turf(ref)
switch (dir)
if (UP)
. = GET_ABOVE(ref)
if (DOWN)
. = GET_BELOW(ref)
else
. = get_step(ref, dir)