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Adjusting random map optimizations.

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This commit is contained in:
MistakeNot4892
2021-09-21 14:13:35 +10:00
committed by atermonera
parent f33facd7e2
commit 96ba1f12f8
3 changed files with 8 additions and 14 deletions
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5
code/_helpers/math.dm
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@@ -1,5 +0,0 @@
/proc/IsPowerOfTwo(var/val)
return (val & (val-1)) == 0
/proc/RoundUpToPowerOfTwo(var/val)
return 2 ** -round(-log(2,val))

16
code/modules/random_map/noise/noise.dm
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@@ -20,10 +20,10 @@
/datum/random_map/noise/set_map_size()
// Make sure the grid is a square with limits that are
// (n^2)+1, otherwise diamond-square won't work.
if(!IsPowerOfTwo((limit_x-1)))
limit_x = RoundUpToPowerOfTwo(limit_x) + 1
if(!IsPowerOfTwo((limit_y-1)))
limit_y = RoundUpToPowerOfTwo(limit_y) + 1
if(!ISPOWEROFTWO((limit_x-1)))
limit_x = ROUNDUPTOPOWEROFTWO(limit_x) + 1
if(!ISPOWEROFTWO((limit_y-1)))
limit_y = ROUNDUPTOPOWEROFTWO(limit_y) + 1
// Sides must be identical lengths.
if(limit_x > limit_y)
limit_y = limit_x
@@ -53,9 +53,6 @@
if(isnull(val)) val = 0
return "[val]"
/datum/random_map/noise/proc/noise2value(var/value)
return min(9,max(0,round((value/cell_range)*10)))
/datum/random_map/noise/proc/subdivide(var/iteration,var/x,var/y,var/input_size)
var/isize = input_size
@@ -116,6 +113,7 @@
subdivide(iteration, x, y+hsize, hsize)
subdivide(iteration, x+hsize, y+hsize, hsize)
#define NOISE2VALUE(X) CLAMP(round(((X)/cell_range)*10), 0, 9)
/datum/random_map/noise/cleanup()
var/is_not_border_left
var/is_not_border_right
@@ -177,11 +175,13 @@
var/mapcell = get_map_cell(x,y)
var/list/neighbors = get_neighbors(x, y)
buddies.Cut()
var/mapcellval = NOISE2VALUE(map[mapcell])
for(var/cell in neighbors)
if(noise2value(map[cell]) == noise2value(map[mapcell]))
if(NOISE2VALUE(map[cell]) == mapcellval)
buddies |= cell
if(!length(buddies))
map[mapcell] = map[pick(neighbors)]
#undef NOISE2VALUE
/datum/random_map/noise/proc/get_neighbors(x, y, include_diagonals)
. = list()