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Do the thing (#1812)

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Lohikar
2017-02-20 12:34:24 -05:00
committed by LordFowl
parent 4b7270230c
commit 2945dc9f0d
20 changed files with 467 additions and 233 deletions
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code/modules/multiz/basic.dm
+22 -4
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@@ -11,25 +11,43 @@ var/z_levels = 0 // Each bit represents a connection between adjacent levels. S
qdel(src)
// The storage of connections between adjacent levels means some bitwise magic is needed.
proc/HasAbove(var/z)
/proc/HasAbove(var/z)
if(z >= world.maxz || z > 16 || z < 1)
return 0
return z_levels & (1 << (z - 1))
proc/HasBelow(var/z)
/proc/HasBelow(var/z)
if(z > world.maxz || z > 17 || z < 2)
return 0
return z_levels & (1 << (z - 2))
// Thankfully, no bitwise magic is needed here.
proc/GetAbove(var/atom/atom)
/proc/GetAbove(var/atom/atom)
var/turf/turf = get_turf(atom)
if(!turf)
return null
return HasAbove(turf.z) ? get_step(turf, UP) : null
proc/GetBelow(var/atom/atom)
/proc/GetBelow(var/atom/atom)
var/turf/turf = get_turf(atom)
if(!turf)
return null
return HasBelow(turf.z) ? get_step(turf, DOWN) : null
/proc/GetConnectedZlevels(z)
. = list(z)
for(var/level = z, HasBelow(level), level--)
. |= level-1
for(var/level = z, HasAbove(level), level++)
. |= level+1
proc/AreConnectedZLevels(var/zA, var/zB)
return zA == zB || (zB in GetConnectedZlevels(zA))
/proc/get_zstep(ref, dir)
if(dir == UP)
. = GetAbove(ref)
else if (dir == DOWN)
. = GetBelow(ref)
else
. = get_step(ref, dir)