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Fixes multi-z things.

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This commit is contained in:
Joseph Heinemeyer
2015-08-30 15:43:32 -07:00
committed by SkyMarshal
parent 772c320303
commit 8c61c3ab6f
17 changed files with 251 additions and 655 deletions
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36
code/modules/multiz/basic.dm
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@@ -4,28 +4,32 @@ var/z_levels = 0 // Each bit represents a connection between adjacent levels. S
// If the height is more than 1, we mark all contained levels as connected.
/obj/effect/landmark/map_data/New()
for(var/i = z - 1 to height - 2)
z_levels |= 1 << i
del src
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))
z_levels |= (1 << i)
qdel(src)
HasAbove(z)
if(z > world.maxz || z > 17 || z < 2)
// The storage of connections between adjacent levels means some bitwise magic is needed.
proc/HasAbove(var/z)
if(z >= world.maxz || z > 16 || z < 1)
return 0
return z_levels & (1 << (z - 1))
HasBelow(z)
if(z >= world.maxz || z > 16 || z < 1)
proc/HasBelow(var/z)
if(z > world.maxz || z > 17 || z < 2)
return 0
return z_levels & (1 << z)
return z_levels & (1 << (z - 2))
GetAbove(var/atom/thing)
var/turf/turf = get_turf(thing)
if(!istype(turf))
// Thankfully, no bitwise magic is needed here.
proc/GetAbove(var/atom/atom)
var/turf/turf = get_turf(atom)
if(!turf)
return null
return HasBelow(turf.z) ? locate(turf.z, turf.y, turf.z - 1) : null
return HasAbove(turf.z) ? get_step(turf, UP) : null
GetBelow(var/atom/thing)
var/turf/turf = get_turf(thing)
if(!istype(turf))
proc/GetBelow(var/atom/atom)
var/turf/turf = get_turf(atom)
if(!turf)
return null
return HasBelow(turf.z) ? locate(turf.z, turf.y, turf.z + 1) : null
return HasBelow(turf.z) ? get_step(turf, DOWN) : null