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PSFastNoiseLite.ps1
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PSFastNoiseLite.ps1
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###############################################################################
# PSFASTNOISELITE
#
# WRITTEN BY GREGORY F MARTIN <[email protected]>
#
# PSFASTNOISELITE IS A "POWERSHELL-NATIVE" PORT OF THE FAST NOISE LITE LIBRARY.
# WHILE FAST NOISE LITE OFFERS A C# DIALECT VARIANT, AND IT COULD BE IMPORTED
# INTO POWERSHELL AS-IS, IT'S NOT A "NATIVE" IMPLEMENTATION RESTRICTED TO
# POWERSHELL SPECIFIC CONSTRAINTS. PSFASTNOISELITE ISN'T JUST A SIMPLE
# DIALECT TRANSLATION. MODIFICATIONS HAVE BEEN MADE IN AN ATTEMPT TO OPTIMIZE
# FOR PERFORMANCE WHILE RETAINING THE INTEGRITY OF THE OUTPUT. THE FOLLOWING
# LIST DETAILS SOME OF THE MORE IMPORTANT DEVIATIONS:
#
# - ALL INSTANCES OF FLOAT HAVE BEEN CHANGED TO SINGLE.
# - ALL INSTANCES OF INT HAVE BEEN CHANGED TO INT64. THIS IS TO HELP AVOID
# STATEMENTS THAT COULD POTENTIALLY RESULT IN OVERFLOWS WHEN USING SIMPLY INT
# SINCE IT MASKS TO INT32.
# - REDUNDANT CASTS OF EXPRESSIONS ARE REMOVED, ESPECIALLY IN PLACES WHERE ALL
# OPERANDS ARE OF THE SAME TYPE, OR WHERE A LITERAL WOULD BE INFERRED
# CORRECTLY GIVEN THE OPERANDS, OPERATION(S), AND TYPE OF STORAGE FOR
# ASSIGNMENT.
# - POWERSHELL DOESN'T SUPPORT COMPOUND BITWISE ARITHMETIC OPERATORS. IN PLACES
# WHERE THOSE WERE ENCOUNTERED, THE EXPRESSION HAS BEEN EXPANDED.
#
# THE ORIGINAL SOURCE CODE FOR FAST NOISE LITE CAN BE FOUND AT THEIR GITHUB
# REPOSITORY: https://github.com/Auburn/FastNoiseLite
#
#
#
# HOW TO USE
#
# MODULARIZING CLASSES IN POWERSHELL CAN BE TROUBLESOME, SO IT'S BEST IF THIS
# CODE IS COPIED/PASTED INTO THE PROGRAM IN WHICH IT'S INTENDED TO BE USED IN.
# COPY EVERYTHING FROM LINE 38 DOWN.
###############################################################################
Set-StrictMode -Version Latest
Enum FnlNoiseType {
OpenSimplex2
OpenSimplex2S
Cellular
Perlin
ValueCubic
Value
}
Enum FnlRotationType3D {
None
ImproveXYPlanes
ImproveXZPlanes
}
Enum FnlFractalType {
None
FBm
Ridged
PingPong
DomainWarpProgressive
DomainWarpIndependent
}
Enum FnlCellularDistanceFunction {
Euclidean
EuclideanSq
Manhattan
Hybrid
}
Enum FnlCellularReturnType {
CellValue
Distance
Distance2
Distance2Add
Distance2Sub
Distance2Mul
Distance2Div
}
Enum FnlDomainWarpType {
OpenSimplex2
OpenSimplex2Reduced
BasicGrid
}
Enum FnlTransformType3D {
None
ImproveXYPlanes
ImproveXZPlanes
DefaultOpenSimplex2
}
Class FastNoiseLite {
Static [Int64]$PRIMEX = 501125321
Static [Int64]$PRIMEY = 1136930381
Static [Int64]$PRIMEZ = 1720413743
Static [Int64]$HASH_MAGIC = 0x27D4EB2D
Static [Int64]$HASHCALC_MAGIC = 2147483648
Static [Int64]$SEEDADD_MAGIC = 1293373
Static [Int64]$APRIMEXMULT2 = [FastNoiseLite]::PRIMEX * 2
Static [Int64]$APRIMEYMULT2 = [FastNoiseLite]::PRIMEY * 2
Static [Int64]$APRIMEZMULT2 = [FastNoiseLite]::PRIMEZ * 2
Static [Single]$SQRT3 = 1.7320508075688772935274463415059
Static [Single]$PLANARIMPROVEA_MAGIC = 0.211324865405187
Static [Single]$PLANARIMPROVEZSCALE_MAGIC = 0.577350269189626
Static [Single]$SIMPLEXVALMODA_MAGIC = 32.69428253173828125
Static [Single]$A2DIV3 = 2 / 3
Static [Single[]]$GRADIENTS2D = @(
0.130526192220052, 0.99144486137381, 0.38268343236509, 0.923879532511287, 0.608761429008721, 0.793353340291235, 0.793353340291235, 0.608761429008721,
0.923879532511287, 0.38268343236509, 0.99144486137381, 0.130526192220051, 0.99144486137381, -0.130526192220051, 0.923879532511287, -0.38268343236509,
0.793353340291235, -0.60876142900872, 0.608761429008721, -0.793353340291235, 0.38268343236509, -0.923879532511287, 0.130526192220052, -0.99144486137381,
-0.130526192220052, -0.99144486137381, -0.38268343236509, -0.923879532511287, -0.608761429008721, -0.793353340291235, -0.793353340291235, -0.608761429008721,
-0.923879532511287, -0.38268343236509, -0.99144486137381, -0.130526192220052, -0.99144486137381, 0.130526192220051, -0.923879532511287, 0.38268343236509,
-0.793353340291235, 0.608761429008721, -0.608761429008721, 0.793353340291235, -0.38268343236509, 0.923879532511287, -0.130526192220052, 0.99144486137381,
0.130526192220052, 0.99144486137381, 0.38268343236509, 0.923879532511287, 0.608761429008721, 0.793353340291235, 0.793353340291235, 0.608761429008721,
0.923879532511287, 0.38268343236509, 0.99144486137381, 0.130526192220051, 0.99144486137381, -0.130526192220051, 0.923879532511287, -0.38268343236509,
0.793353340291235, -0.60876142900872, 0.608761429008721, -0.793353340291235, 0.38268343236509, -0.923879532511287, 0.130526192220052, -0.99144486137381,
-0.130526192220052, -0.99144486137381, -0.38268343236509, -0.923879532511287, -0.608761429008721, -0.793353340291235, -0.793353340291235, -0.608761429008721,
-0.923879532511287, -0.38268343236509, -0.99144486137381, -0.130526192220052, -0.99144486137381, 0.130526192220051, -0.923879532511287, 0.38268343236509,
-0.793353340291235, 0.608761429008721, -0.608761429008721, 0.793353340291235, -0.38268343236509, 0.923879532511287, -0.130526192220052, 0.99144486137381,
0.130526192220052, 0.99144486137381, 0.38268343236509, 0.923879532511287, 0.608761429008721, 0.793353340291235, 0.793353340291235, 0.608761429008721,
0.923879532511287, 0.38268343236509, 0.99144486137381, 0.130526192220051, 0.99144486137381, -0.130526192220051, 0.923879532511287, -0.38268343236509,
0.793353340291235, -0.60876142900872, 0.608761429008721, -0.793353340291235, 0.38268343236509, -0.923879532511287, 0.130526192220052, -0.99144486137381,
-0.130526192220052, -0.99144486137381, -0.38268343236509, -0.923879532511287, -0.608761429008721, -0.793353340291235, -0.793353340291235, -0.608761429008721,
-0.923879532511287, -0.38268343236509, -0.99144486137381, -0.130526192220052, -0.99144486137381, 0.130526192220051, -0.923879532511287, 0.38268343236509,
-0.793353340291235, 0.608761429008721, -0.608761429008721, 0.793353340291235, -0.38268343236509, 0.923879532511287, -0.130526192220052, 0.99144486137381,
0.130526192220052, 0.99144486137381, 0.38268343236509, 0.923879532511287, 0.608761429008721, 0.793353340291235, 0.793353340291235, 0.608761429008721,
0.923879532511287, 0.38268343236509, 0.99144486137381, 0.130526192220051, 0.99144486137381, -0.130526192220051, 0.923879532511287, -0.38268343236509,
0.793353340291235, -0.60876142900872, 0.608761429008721, -0.793353340291235, 0.38268343236509, -0.923879532511287, 0.130526192220052, -0.99144486137381,
-0.130526192220052, -0.99144486137381, -0.38268343236509, -0.923879532511287, -0.608761429008721, -0.793353340291235, -0.793353340291235, -0.608761429008721,
-0.923879532511287, -0.38268343236509, -0.99144486137381, -0.130526192220052, -0.99144486137381, 0.130526192220051, -0.923879532511287, 0.38268343236509,
-0.793353340291235, 0.608761429008721, -0.608761429008721, 0.793353340291235, -0.38268343236509, 0.923879532511287, -0.130526192220052, 0.99144486137381,
0.130526192220052, 0.99144486137381, 0.38268343236509, 0.923879532511287, 0.608761429008721, 0.793353340291235, 0.793353340291235, 0.608761429008721,
0.923879532511287, 0.38268343236509, 0.99144486137381, 0.130526192220051, 0.99144486137381, -0.130526192220051, 0.923879532511287, -0.38268343236509,
0.793353340291235, -0.60876142900872, 0.608761429008721, -0.793353340291235, 0.38268343236509, -0.923879532511287, 0.130526192220052, -0.99144486137381,
-0.130526192220052, -0.99144486137381, -0.38268343236509, -0.923879532511287, -0.608761429008721, -0.793353340291235, -0.793353340291235, -0.608761429008721,
-0.923879532511287, -0.38268343236509, -0.99144486137381, -0.130526192220052, -0.99144486137381, 0.130526192220051, -0.923879532511287, 0.38268343236509,
-0.793353340291235, 0.608761429008721, -0.608761429008721, 0.793353340291235, -0.38268343236509, 0.923879532511287, -0.130526192220052, 0.99144486137381,
0.38268343236509, 0.923879532511287, 0.923879532511287, 0.38268343236509, 0.923879532511287, -0.38268343236509, 0.38268343236509, -0.923879532511287,
-0.38268343236509, -0.923879532511287, -0.923879532511287, -0.38268343236509, -0.923879532511287, 0.38268343236509, -0.38268343236509, 0.923879532511287
)
Static [Single[]]$RANDVECS2D = @(
-0.2700222198, -0.9628540911, 0.3863092627, -0.9223693152, 0.04444859006, -0.999011673, -0.5992523158, -0.8005602176, -0.7819280288, 0.6233687174, 0.9464672271, 0.3227999196, -0.6514146797, -0.7587218957, 0.9378472289, 0.347048376,
-0.8497875957, -0.5271252623, -0.879042592, 0.4767432447, -0.892300288, -0.4514423508, -0.379844434, -0.9250503802, -0.9951650832, 0.0982163789, 0.7724397808, -0.6350880136, 0.7573283322, -0.6530343002, -0.9928004525, -0.119780055,
-0.0532665713, 0.9985803285, 0.9754253726, -0.2203300762, -0.7665018163, 0.6422421394, 0.991636706, 0.1290606184, -0.994696838, 0.1028503788, -0.5379205513, -0.84299554, 0.5022815471, -0.8647041387, 0.4559821461, -0.8899889226,
-0.8659131224, -0.5001944266, 0.0879458407, -0.9961252577, -0.5051684983, 0.8630207346, 0.7753185226, -0.6315704146, -0.6921944612, 0.7217110418, -0.5191659449, -0.8546734591, 0.8978622882, -0.4402764035, -0.1706774107, 0.9853269617,
-0.9353430106, -0.3537420705, -0.9992404798, 0.03896746794, -0.2882064021, -0.9575683108, -0.9663811329, 0.2571137995, -0.8759714238, -0.4823630009, -0.8303123018, -0.5572983775, 0.05110133755, -0.9986934731, -0.8558373281, -0.5172450752,
0.09887025282, 0.9951003332, 0.9189016087, 0.3944867976, -0.2439375892, -0.9697909324, -0.8121409387, -0.5834613061, -0.9910431363, 0.1335421355, 0.8492423985, -0.5280031709, -0.9717838994, -0.2358729591, 0.9949457207, 0.1004142068,
0.6241065508, -0.7813392434, 0.662910307, 0.7486988212, -0.7197418176, 0.6942418282, -0.8143370775, -0.5803922158, 0.104521054, -0.9945226741, -0.1065926113, -0.9943027784, 0.445799684, -0.8951327509, 0.105547406, 0.9944142724,
-0.992790267, 0.1198644477, -0.8334366408, 0.552615025, 0.9115561563, -0.4111755999, 0.8285544909, -0.5599084351, 0.7217097654, -0.6921957921, 0.4940492677, -0.8694339084, -0.3652321272, -0.9309164803, -0.9696606758, 0.2444548501,
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Static [Single[]]$GRADIENTS3D = @(
0, 1, 1, 0, 0,-1, 1, 0, 0, 1,-1, 0, 0,-1,-1, 0,
1, 0, 1, 0, -1, 0, 1, 0, 1, 0,-1, 0, -1, 0,-1, 0,
1, 1, 0, 0, -1, 1, 0, 0, 1,-1, 0, 0, -1,-1, 0, 0,
0, 1, 1, 0, 0,-1, 1, 0, 0, 1,-1, 0, 0,-1,-1, 0,
1, 0, 1, 0, -1, 0, 1, 0, 1, 0,-1, 0, -1, 0,-1, 0,
1, 1, 0, 0, -1, 1, 0, 0, 1,-1, 0, 0, -1,-1, 0, 0,
0, 1, 1, 0, 0,-1, 1, 0, 0, 1,-1, 0, 0,-1,-1, 0,
1, 0, 1, 0, -1, 0, 1, 0, 1, 0,-1, 0, -1, 0,-1, 0,
1, 1, 0, 0, -1, 1, 0, 0, 1,-1, 0, 0, -1,-1, 0, 0,
0, 1, 1, 0, 0,-1, 1, 0, 0, 1,-1, 0, 0,-1,-1, 0,
1, 0, 1, 0, -1, 0, 1, 0, 1, 0,-1, 0, -1, 0,-1, 0,
1, 1, 0, 0, -1, 1, 0, 0, 1,-1, 0, 0, -1,-1, 0, 0,
0, 1, 1, 0, 0,-1, 1, 0, 0, 1,-1, 0, 0,-1,-1, 0,
1, 0, 1, 0, -1, 0, 1, 0, 1, 0,-1, 0, -1, 0,-1, 0,
1, 1, 0, 0, -1, 1, 0, 0, 1,-1, 0, 0, -1,-1, 0, 0,
1, 1, 0, 0, 0,-1, 1, 0, -1, 1, 0, 0, 0,-1,-1, 0
)
Static [Single[]]$RANDVECS3D = @(
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-0.6855598966, -0.3250143309, 0.6514394162, 0, 0.2900942212, -0.7799057743, -0.5546100667, 0, -0.2098319339, 0.85037073, 0.4825351604, 0, -0.4592603758, 0.6598504336, -0.5947077538, 0, 0.8715945488, 0.09616365406, -0.4807031248, 0, -0.6776666319, 0.7118504878, -0.1844907016, 0, 0.7044377633, 0.312427597, 0.637304036, 0, -0.7052318886, -0.2401093292, -0.6670798253, 0,
0.081921007, -0.7207336136, -0.6883545647, 0, -0.6993680906, -0.5875763221, -0.4069869034, 0, -0.1281454481, 0.6419895885, 0.7559286424, 0, -0.6337388239, -0.6785471501, -0.3714146849, 0, 0.5565051903, -0.2168887573, -0.8020356851, 0, -0.5791554484, 0.7244372011, -0.3738578718, 0, 0.1175779076, -0.7096451073, 0.6946792478, 0, -0.6134619607, 0.1323631078, 0.7785527795, 0,
0.6984635305, -0.02980516237, -0.715024719, 0, 0.8318082963, -0.3930171956, 0.3919597455, 0, 0.1469576422, 0.05541651717, -0.9875892167, 0, 0.708868575, -0.2690503865, 0.6520101478, 0, 0.2726053183, 0.67369766, -0.68688995, 0, -0.6591295371, 0.3035458599, -0.6880466294, 0, 0.4815131379, -0.7528270071, 0.4487723203, 0, 0.9430009463, 0.1675647412, -0.2875261255, 0,
0.434802957, 0.7695304522, -0.4677277752, 0, 0.3931996188, 0.594473625, 0.7014236729, 0, 0.7254336655, -0.603925654, 0.3301814672, 0, 0.7590235227, -0.6506083235, 0.02433313207, 0, -0.8552768592, -0.3430042733, 0.3883935666, 0, -0.6139746835, 0.6981725247, 0.3682257648, 0, -0.7465905486, -0.5752009504, 0.3342849376, 0, 0.5730065677, 0.810555537, -0.1210916791, 0,
-0.9225877367, -0.3475211012, -0.167514036, 0, -0.7105816789, -0.4719692027, -0.5218416899, 0, -0.08564609717, 0.3583001386, 0.929669703, 0, -0.8279697606, -0.2043157126, 0.5222271202, 0, 0.427944023, 0.278165994, 0.8599346446, 0, 0.5399079671, -0.7857120652, -0.3019204161, 0, 0.5678404253, -0.5495413974, -0.6128307303, 0, -0.9896071041, 0.1365639107, -0.04503418428, 0,
-0.6154342638, -0.6440875597, 0.4543037336, 0, 0.1074204368, -0.7946340692, 0.5975094525, 0, -0.3595449969, -0.8885529948, 0.28495784, 0, -0.2180405296, 0.1529888965, 0.9638738118, 0, -0.7277432317, -0.6164050508, -0.3007234646, 0, 0.7249729114, -0.00669719484, 0.6887448187, 0, -0.5553659455, -0.5336586252, 0.6377908264, 0, 0.5137558015, 0.7976208196, -0.3160000073, 0,
-0.3794024848, 0.9245608561, -0.03522751494, 0, 0.8229248658, 0.2745365933, -0.4974176556, 0, -0.5404114394, 0.6091141441, 0.5804613989, 0, 0.8036581901, -0.2703029469, 0.5301601931, 0, 0.6044318879, 0.6832968393, 0.4095943388, 0, 0.06389988817, 0.9658208605, -0.2512108074, 0, 0.1087113286, 0.7402471173, -0.6634877936, 0, -0.713427712, -0.6926784018, 0.1059128479, 0,
0.6458897819, -0.5724548511, -0.5050958653, 0, -0.6553931414, 0.7381471625, 0.159995615, 0, 0.3910961323, 0.9188871375, -0.05186755998, 0, -0.4879022471, -0.5904376907, 0.6429111375, 0, 0.6014790094, 0.7707441366, -0.2101820095, 0, -0.5677173047, 0.7511360995, 0.3368851762, 0, 0.7858573506, 0.226674665, 0.5753666838, 0, -0.4520345543, -0.604222686, -0.6561857263, 0,
0.002272116345, 0.4132844051, -0.9105991643, 0, -0.5815751419, -0.5162925989, 0.6286591339, 0, -0.03703704785, 0.8273785755, 0.5604221175, 0, -0.5119692504, 0.7953543429, -0.3244980058, 0, -0.2682417366, -0.9572290247, -0.1084387619, 0, -0.2322482736, -0.9679131102, -0.09594243324, 0, 0.3554328906, -0.8881505545, 0.2913006227, 0, 0.7346520519, -0.4371373164, 0.5188422971, 0,
0.9985120116, 0.04659011161, -0.02833944577, 0, -0.3727687496, -0.9082481361, 0.1900757285, 0, 0.91737377, -0.3483642108, 0.1925298489, 0, 0.2714911074, 0.4147529736, -0.8684886582, 0, 0.5131763485, -0.7116334161, 0.4798207128, 0, -0.8737353606, 0.18886992, -0.4482350644, 0, 0.8460043821, -0.3725217914, 0.3814499973, 0, 0.8978727456, -0.1780209141, -0.4026575304, 0,
0.2178065647, -0.9698322841, -0.1094789531, 0, -0.1518031304, -0.7788918132, -0.6085091231, 0, -0.2600384876, -0.4755398075, -0.8403819825, 0, 0.572313509, -0.7474340931, -0.3373418503, 0, -0.7174141009, 0.1699017182, -0.6756111411, 0, -0.684180784, 0.02145707593, -0.7289967412, 0, -0.2007447902, 0.06555605789, -0.9774476623, 0, -0.1148803697, -0.8044887315, 0.5827524187, 0,
-0.7870349638, 0.03447489231, 0.6159443543, 0, -0.2015596421, 0.6859872284, 0.6991389226, 0, -0.08581082512, -0.10920836, -0.9903080513, 0, 0.5532693395, 0.7325250401, -0.396610771, 0, -0.1842489331, -0.9777375055, -0.1004076743, 0, 0.0775473789, -0.9111505856, 0.4047110257, 0, 0.1399838409, 0.7601631212, -0.6344734459, 0, 0.4484419361, -0.845289248, 0.2904925424, 0
)
[Int64]$Seed = 1337
[Int64]$Octaves = 3
[Single]$Frequency = 0.01
[Single]$Lacunarity = 2
[Single]$Gain = 0.5
[Single]$WeightedStrength = 0
[Single]$PingPongStrength = 2
[Single]$FractalBounding = 1 / 1.75
[Single]$CellularJitterModifier = 1
[Single]$DomainWarpAmp = 1
[FnlNoiseType]$NoiseType = [FnlNoiseType]::OpenSimplex2
[FnlRotationType3D]$RotationType3D = [FnlRotationType3D]::None
[FnlTransformType3D]$TransformType3D = [FnlTransformType3D]::DefaultOpenSimplex2
[FnlTransformType3D]$WarpTransformType3D = [FnlTransformType3D]::DefaultOpenSimplex2
[FnlFractalType]$FractalType = [FnlFractalType]::None
[FnlCellularDistanceFunction]$CellularDistanceFunction = [FnlCellularDistanceFunction]::EuclideanSq
[FnlCellularReturnType]$CellularReturnType = [FnlCellularReturnType]::Distance
[FnlDomainWarpType]$DomainWarpType = [FnlDomainWarpType]::OpenSimplex2
FastNoiseLite() {}
###########################################################################
#
# NOTE THAT THE FOLLOWING METHODS WERE INLINED IN THE C# SOURCE.
# POWERSHELL DOESN'T SUPPORT INLINING, SO THERE *MAY* BE SOME PERFORMANCE
# DECAY HERE.
#
###########################################################################
Static [Single]FastMin(
[Single]$A,
[Single]$B
) {
Return $A -LT $B ? $A : $B
}
Static [Single]FastMax(
[Single]$A,
[Single]$B
) {
Return $A -GT $B ? $A : $B
}
Static [Single]FastAbs(
[Single]$F
) {
Return $F -LT 0 ? $F * -1 : $F
}
Static [Single]FastSqrt(
[Single]$F
) {
Return ([Single]([System.Math]::Sqrt($F))) # SQRT RETURNS DOUBLE, SO THIS CAST MAY MAKE SENSE, BUT WE MAY LOSE RESOLUTION
}
Static [Int64]FastFloor(
[Single]$F
) {
Return $F -GE 0 ? ([Int64]$F) : ([Int64]$F) - 1
}
Static [Int64]FastRound(
[Single]$F
) {
Return $F -GE 0 ? ([Int64]($F + 0.5)) : ([Int64]($F - 0.5))
}
Static [Single]Lerp(
[Single]$A,
[Single]$B,
[Single]$T
) {
Return $A + $T * ($B - $A)
}
Static [Single]InterpHermite(
[Single]$T
) {
Return $T * $T * (3 - 2 * $T)
}
Static [Single]InterpQuintic(
[Single]$T
) {
Return $T * $T * $T * ($T * ($T * 6 - 15) + 10)
}
Static [Single]CubicLerp(
[Single]$A,
[Single]$B,
[Single]$C,
[Single]$D,
[Single]$T
) {
[Single]$P = ($D - $C) - ($A - $B)
Return $T * $T * $T * $P + $T * $T * (($A - $B) - $P) + $T * ($C - $A) + $B
}
Static [Int64]Hash(
[Int64]$ASeed,
[Int64]$XPrimed,
[Int64]$YPrimed
) {
[Int64]$Hash = $ASeed -BXOR $XPrimed -BXOR $YPrimed
$Hash *= [FastNoiseLite]::HASH_MAGIC
Return $Hash
}
Static [Int64]Hash(
[Int64]$ASeed,
[Int64]$XPrimed,
[Int64]$YPrimed,
[Int64]$ZPrimed
) {
[Int64]$Hash = $ASeed -BXOR $XPrimed -BXOR $YPrimed -BXOR $ZPrimed
$Hash *= [FastNoiseLite]::HASH_MAGIC
Return $Hash
}
Static [Single]ValCoord(
[Int64]$ASeed,
[Int64]$XPrimed,
[Int64]$YPrimed
) {
[Int64]$Hash = [FastNoiseLite]::Hash($ASeed, $XPrimed, $YPrimed)
$Hash *= $Hash
$Hash = $Hash -BXOR ($Hash -SHL 19) # ORIGINAL STATEMENT WAS hash ^= hash << 19;
Return $Hash * (1 / [FastNoiseLite]::HASHCALC_MAGIC)
}
Static [Single]ValCoord(
[Int64]$ASeed,
[Int64]$XPrimed,
[Int64]$YPrimed,
[Int64]$ZPrimed
) {
[Int64]$Hash = [FastNoiseLite]::Hash($ASeed, $XPrimed, $YPrimed, $ZPrimed)
$Hash *= $Hash
$Hash = $Hash -BXOR ($Hash -SHL 19) # ORIGINAL STATEMENT WAS hash ^= hash << 19;
Return $Hash * (1 / [FastNoiseLite]::HASHCALC_MAGIC)
}
Static [Single]GradCoord(
[Int64]$ASeed,
[Int64]$XPrimed,
[Int64]$YPrimed,
[Single]$Xd,
[Single]$Yd
) {
[Int64]$Hash = [FastNoiseLite]::Hash($ASeed, $XPrimed, $YPrimed)
$Hash = $Hash -BXOR ($Hash -SHR 15) # ORIGINAL STATEMENT WAS hash ^= hash >> 15;
$Hash = $Hash -BAND (127 -SHL 1) # ORIGINAL STATEMENT WAS hash &= 127 << 1;
[Single]$Xg = [FastNoiseLite]::GRADIENTS2D[$Hash]
[Single]$Yg = [FastNoiseLite]::GRADIENTS2D[($Hash -BOR 1)]
Return $Xd * $Xg + $Yd * $Yg
}
Static [Single]GradCoord(
[Int64]$ASeed,
[Int64]$XPrimed,
[Int64]$YPrimed,
[Int64]$ZPrimed,
[Single]$Xd,
[Single]$Yd,
[Single]$Zd
) {
[Int64]$Hash = [FastNoiseLite]::Hash($ASeed, $XPrimed, $YPrimed, $ZPrimed)
$Hash = $Hash -BXOR ($Hash -SHR 15) # ORIGINAL STATEMENT WAS hash ^= hash >> 15;
$Hash = $Hash -BAND (63 -SHL 2) # ORIGINAL STATEMENT WAS hash &= 63 << 2;
[Single]$Xg = [FastNoiseLite]::GRADIENTS3D[$Hash]
[Single]$Yg = [FastNoiseLite]::GRADIENTS3D[($Hash -BOR 1)]
[Single]$Zg = [FastNoiseLite]::GRADIENTS3D[($Hash -BOR 2)]
Return $Xd * $Xg + $Yd * $Yg + $Zd * $Zg
}
###########################################################################
#
# THE ORIGINAL SOURCE FOR THIS METHOD IS AS FOLLOWS:
#
# private static void GradCoordOut(int seed, int xPrimed, int yPrimed, out Single xo, out Single yo)
# {
# int hash = Hash(seed, xPrimed, yPrimed) & (255 << 1);
#
# xo = RandVecs2D[hash];
# yo = RandVecs2D[hash | 1];
# }
#
# USING REF ARGS IN LIEU OF OUT SHOULD BE SATISFACTORY HERE
#
###########################################################################
Static [Void]GradCoordOut(
[Int64]$ASeed,
[Int64]$XPrimed,
[Int64]$YPrimed,
[Ref]$Xo,
[Ref]$Yo
) {
[Int64]$Hash = [FastNoiseLite]::Hash($ASeed, $XPrimed, $YPrimed) -BAND (255 -SHL 1)
$Xo.Value = [FastNoiseLite]::RANDVECS2D[$Hash]
$Yo.Value = [FastNoiseLite]::RANDVECS2D[($Hash -BOR 1)]
}
Static [Void]GradCoordOut(
[Int64]$ASeed,
[Int64]$XPrimed,
[Int64]$YPrimed,
[Int64]$ZPrimed,
[Ref]$Xo,
[Ref]$Yo,
[Ref]$Zo
) {
[Int64]$Hash = [FastNoiseLite]::Hash($ASeed, $XPrimed, $YPrimed) -BAND (255 -SHL 2)
$Xo.Value = [FastNoiseLite]::RANDVECS2D[$Hash]
$Yo.Value = [FastNoiseLite]::RANDVECS2D[($Hash -BOR 1)]
$Zo.Value = [FastNoiseLite]::RANDVECS2D[($Hash -BOR 2)]
}
Static [Void]GradCoordDual(
[Int64]$ASeed,
[Int64]$XPrimed,
[Int64]$YPrimed,
[Single]$Xd,
[Single]$Yd,
[Ref]$Xo,
[Ref]$Yo
) {
[Int64]$Hash = [FastNoiseLite]::Hash($ASeed, $XPrimed, $YPrimed)
[Int64]$Index1 = $Hash -BAND (127 -SHL 1)
[Int64]$Index2 = ($Hash -SHR 7) -BAND (255 -SHL 1)
[Single]$Xg = [FastNoiseLite]::GRADIENTS2D[$Index1]
[Single]$Yg = [FastNoiseLite]::GRADIENTS2D[($Index1 -BOR 1)]
[Single]$Xgo = [FastNoiseLite]::RANDVECS2D[$Index2]
[Single]$Ygo = [FastNoiseLite]::RANDVECS2D[($Index2 -BOR 1)]
[Single]$Value = $Xd * $Xg + $Yd * $Yg
$Xo.Value = $Value * $Xgo
$Yo.Value = $Value * $Ygo
}
Static [Void]GradCoordDual(
[Int64]$ASeed,
[Int64]$XPrimed,
[Int64]$YPrimed,
[Int64]$ZPrimed,
[Single]$Xd,
[Single]$Yd,
[Single]$Zd,
[Ref]$Xo,
[Ref]$Yo,
[Ref]$Zo
) {
[Int64]$Hash = [FastNoiseLite]::Hash($ASeed, $XPrimed, $YPrimed, $ZPrimed)
[Int64]$Index1 = $Hash -BAND (63 -SHL 2)
[Int64]$Index2 = ($Hash -SHR 6) -BAND (255 -SHL 2)
[Single]$Xg = [FastNoiseLite]::GRADIENTS3D[$Index1]
[Single]$Yg = [FastNoiseLite]::GRADIENTS3D[($Index1 -BOR 1)]
[Single]$Zg = [FastNoiseLite]::GRADIENTS2D[($Index1 -BOR 2)]
[Single]$Xgo = [FastNoiseLite]::RANDVECS3D[$Index2]
[Single]$Ygo = [FastNoiseLite]::RANDVECS3D[($Index2 -BOR 1)]
[Single]$Zgo = [FastNoiseLite]::RANDVECS3D[($Index2 -BOR 2)]
[Single]$Value = $Xd * $Xg + $Yd * $Yg + $Zd * $Zg
$Xo.Value = $Value * $Xgo
$Yo.Value = $Value * $Ygo
$Zo.Value = $Value * $Zgo
}
[Void]SetNoiseType(
[FnlNoiseType]$NoiseType
) {
$this.NoiseType = $NoiseType
$this.UpdateTransformType3D()
}
[Void]SetRotationType3D(
[FnlRotationType3D]$RotationType3D
) {
$this.RotationType3D = $RotationType3D
$this.UpdateTransformType3D()
$this.UpdateWarpTransformType3D()
}
[Void]SetFractalOctaves(
[Int64]$Octaves
) {
$this.Octaves = $Octaves
$this.CalculateFractalBounding()
}
[Void]SetFractalGain(
[Single]$Gain
) {
$this.Gain = $Gain
$this.CalculateFractalBounding()
}
[Void]SetDomainWarpType(
[FnlDomainWarpType]$DomainWarpType
) {
$this.DomainWarpType = $DomainWarpType
$this.UpdateWarpTransformType3D()
}
[Single]GetNoise(
[Single]$X,
[Single]$Y
) {
$this.TransformNoiseCoordinate(([Ref]$X), ([Ref]$Y))
Switch($this.FractalType) {
([FnlFractalType]::FBm) {
Return $this.GenFractalFBm($X, $Y)
}
([FnlFractalType]::Ridged) {
Return $this.GenFractalRidged($X, $Y)
}
([FnlFractalType]::PingPong) {
Return $this.GenFractalPingPong($X, $Y)
}
Default {
Return $this.GenNoiseSingle($this.Seed, $X, $Y)
}
}
# THIS CODE PATH ISN'T CONSIDERED IN THE ORIGINAL SOURCE, SO I'LL JUST INCLUDE THE DEFAULT CASE HERE
# THIS IS MORE SO THE LINTER WILL SHUT UP, BUT JUSTIN CASE
Return $this.GenNoiseSingle($this.Seed, $X, $Y)
}
[Single]GetNoise(
[Single]$X,
[Single]$Y,
[Single]$Z
) {
$this.TransformNoiseCoordinate(([Ref]$X), ([Ref]$Y), ([Ref]$Z))
Switch($this.FractalType) {
([FnlFractalType]::FBm) {
Return $this.GenFractalFBm($X, $Y, $Z)
}
([FnlFractalType]::Ridged) {
Return $this.GenFractalRidged($X, $Y, $Z)
}
([FnlFractalType]::PingPong) {
Return $this.GenFractalPingPong($X, $Y, $Z)
}
Default {
Return $this.GenNoiseSingle($this.Seed, $X, $Y, $Z)
}
}
# THIS CODE PATH ISN'T CONSIDERED IN THE ORIGINAL SOURCE, SO I'LL JUST INCLUDE THE DEFAULT CASE HERE
# THIS IS MORE SO THE LINTER WILL SHUT UP, BUT JUSTIN CASE
Return $this.GenNoiseSingle($this.Seed, $X, $Y, $Z)
}
[Void]DomainWarp(
[Ref]$X,
[Ref]$Y
) {
Switch($this.FractalType) {
([FnlFractalType]::DomainWarpProgressive) {
$this.DomainWarpFractalProgressive($X, $Y)
Break
}
([FnlFractalType]::DomainWarpIndependent) {
$this.DomainWarpFractalIndependent($X, $Y)
Break
}
Default {
$this.DomainWarpSingle($X, $Y)
Break
}
}
$this.DomainWarpSingle($X, $Y)
}
[Void]DomainWarp(
[Ref]$X,
[Ref]$Y,
[Ref]$Z
) {
Switch($this.FractalType) {
([FnlFractalType]::DomainWarpProgressive) {
$this.DomainWarpFractalProgressive($X, $Y, $Z)
Break
}
([FnlFractalType]::DomainWarpIndependent) {
$this.DomainWarpFractalIndependent($X, $Y, $Z)
Break
}
Default {
$this.DomainWarpSingle($X, $Y, $Z)
Break
}
}
$this.DomainWarpSingle($X, $Y, $Z)
}
[Single]PingPong(
[Single]$T
) {
$T = $T - ([Int64]($T * 0.5)) * 2
Return $T -LT 1 ? $T : 2 - $T
}
[Void]CalculateFractalBounding() {
[Single]$LGain = [FastNoiseLite]::FastAbs($this.Gain)
[Single]$LAmp = $LGain
[Single]$LAmpFractal = 1
For([Int64]$I = 1; $I -LT $this.Octaves; $I++) {
$LAmpFractal += $LAmp
$LAmp *= $LGain
}
$this.FractalBounding = 1 / $LAmpFractal
}
[Single]GenNoiseSingle(
[Int64]$ASeed,
[Single]$X,
[Single]$Y
) {
Switch($this.NoiseType) {
([FnlNoiseType]::OpenSimplex2) {
Return $this.SingleSimplex($ASeed, $X, $Y)
}
([FnlNoiseType]::OpenSimplex2S) {
Return $this.SingleOpenSimplex2S($ASeed, $X, $Y)
}
([FnlNoiseType]::Cellular) {
Return $this.SingleCellular($ASeed, $X, $Y)
}
([FnlNoiseType]::Perlin) {
Return $this.SinglePerlin($ASeed, $X, $Y)
}
([FnlNoiseType]::ValueCubic) {
Return $this.SingleValueCubic($ASeed, $X, $Y)
}
([FnlNoiseType]::Value) {
Return $this.SingleValue($ASeed, $X, $Y)
}
Default {
Return 0
}
}
Return 0
}
[Single]GenNoiseSingle(
[Int64]$ASeed,
[Single]$X,
[Single]$Y,
[Single]$Z
) {
Switch($this.NoiseType) {
([FnlNoiseType]::OpenSimplex2) {
Return $this.SingleSimplex($ASeed, $X, $Y, $Z)
}
([FnlNoiseType]::OpenSimplex2S) {
Return $this.SingleOpenSimplex2S($ASeed, $X, $Y, $Z)
}
([FnlNoiseType]::Cellular) {
Return $this.SingleCellular($ASeed, $X, $Y, $Z)
}
([FnlNoiseType]::Perlin) {
Return $this.SinglePerlin($ASeed, $X, $Y, $Z)
}
([FnlNoiseType]::ValueCubic) {
Return $this.SingleValueCubic($ASeed, $X, $Y, $Z)
}
([FnlNoiseType]::Value) {
Return $this.SingleValue($ASeed, $X, $Y, $Z)
}
Default {
Return 0
}
}
Return 0
}
[Void]TransformNoiseCoordinate(
[Ref]$X,
[Ref]$Y
) {
$X.Value *= $this.Frequency
$Y.Value *= $this.Frequency
Switch($this.NoiseType) {
($_ -EQ [FnlNoiseType]::OpenSimplex2 -OR $_ -EQ [FnlNoiseType]::OpenSimplex2S) {
[Single]$F2 = 0.5 * ([FastNoiseLite]::SQRT3 - 1)
[Single]$T = ($X.Value + $Y.Value) * $F2
$X.Value += $T
$Y.Value += $T
Break
}
Default {
Break
}
}
Return
}
[Void]TransformNoiseCoordinate(
[Ref]$X,
[Ref]$Y,
[Ref]$Z
) {
$X.Value *= $this.Frequency
$Y.Value *= $this.Frequency
$Z.Value *= $this.Frequency
Switch($this.TransformType3D) {
([FnlTransformType3D]::ImproveXYPlanes) {
[Single]$Xy = $X.Value + $Y.Value
[Single]$S2 = $Xy * -[FastNoiseLite]::PLANARIMPROVEA_MAGIC
$Z.Value *= [FastNoiseLite]::PLANARIMPROVEZSCALE_MAGIC
$X.Value += $S2 - $Z.Value
$Y.Value += $S2 - $Z.Value
$Z.Value += $Xy * [FastNoiseLite]::PLANARIMPROVEZSCALE_MAGIC
Break
}
([FnlTransformType3D]::ImproveXZPlanes) {
[Single]$Xz = $X.Value + $Z.Value
[Single]$S2 = $Xz * -[FastNoiseLite]::PLANARIMPROVEA_MAGIC
$Y.Value *= [FastNoiseLite]::PLANARIMPROVEZSCALE_MAGIC
$X.Value += $S2 - $Z.Value
$Y.Value += $S2 - $Z.Value
$Z.Value += $Xz * [FastNoiseLite]::PLANARIMPROVEZSCALE_MAGIC
Break
}
([FnlTransformType3D]::DefaultOpenSimplex2) {
[Single]$R = ($X.Value + $Y.Value + $Z.Value) * [FastNoiseLite]::A2DIV3
$X.Value = $R - $X.Value
$Y.Value = $R - $Y.Value
$Z.Value = $R - $Z.Value
Break
}
Default {
Break
}
}
Return
}
[Void]UpdateTransformType3D() {
Switch($this.RotationType3D) {
([FnlRotationType3D]::ImproveXYPlanes) {
$this.TransformType3D = [FnlTransformType3D]::ImproveXYPlanes
Break
}
([FnlRotationType3D]::ImproveXZPlanes) {
$this.TransformType3D = [FnlTransformType3D]::ImproveXZPlanes
Break
}
Default {
Switch($this.NoiseType) {
($_ -EQ [FnlNoiseType]::OpenSimplex2 -OR $_ -EQ [FnlNoiseType]::OpenSimplex2S) {
$this.TransformType3D = [FnlTransformType3D]::DefaultOpenSimplex2
Break
}
Default {
$this.TransformType3D = [FnlTransformType3D]::None
Break
}
}
Break
}
}
Return
}
[Void]TransformDomainWarpCoordinate(
[Ref]$X,
[Ref]$Y
) {
Switch($this.DomainWarpType) {
($_ -EQ [FnlDomainWarpType]::OpenSimplex2 -OR $_ -EQ [FnlDomainWarpType]::OpenSimplex2Reduced) {
[Single]$F2 = 0.5 * ([FastNoiseLite]::SQRT3 - 1)
[Single]$T = ($X.Value + $Y.Value) * $F2
$X.Value += $T
$Y.Value += $T
Break
}
Default {
Break
}
}
Return
}
[Void]TransformDomainWarpCoordinate(
[Ref]$X,
[Ref]$Y,
[Ref]$Z
) {
Switch($this.WarpTransformType3D) {
([FnlTransformType3D]::ImproveXYPlanes) {
[Single]$Xy = $X.Value + $Y.Value
[Single]$S2 = $Xy * -[FastNoiseLite]::PLANARIMPROVEA_MAGIC
$Z.Value *= [FastNoiseLite]::PLANARIMPROVEZSCALE_MAGIC
$X.Value += $S2 - $Z.Value
$Y.Value += $S2 - $Z.Value
$Z.Value += $Xy * [FastNoiseLite]::PLANARIMPROVEZSCALE_MAGIC
Break
}
([FnlTransformType3D]::ImproveXZPlanes) {
[Single]$Xz = $X.Value + $Z.Value
[Single]$S2 = $Xz * -[FastNoiseLite]::PLANARIMPROVEA_MAGIC
$Y.Value *= [FastNoiseLite]::PLANARIMPROVEZSCALE_MAGIC
$X.Value += $S2 - $Y.Value
$Z.Value += $S2 - $Y.Value
$Y.Value += $Xz * [FastNoiseLite]::PLANARIMPROVEZSCALE_MAGIC
Break
}
([FnlTransformType3D]::DefaultOpenSimplex2) {
[Single]$R = ($X.Value + $Y.Value + $Z.Value) * [FastNoiseLite]::A2DIV3
$X.Value = $R - $X.Value
$Y.Value = $R - $Y.Value
$Z.Value = $R - $Z.Value
Break
}
Default {
Break
}
}
Return
}
[Void]UpdateWarpTransformType3D() {
Switch($this.RotationType3D) {
([FnlRotationType3D]::ImproveXYPlanes) {
$this.WarpTransformType3D = [FnlTransformType3D]::ImproveXYPlanes
Break
}
([FnlRotationType3D]::ImproveXZPlanes) {
$this.WarpTransformType3D = [FnlTransformType3D]::ImproveXZPlanes
Break
}
Default {
Switch($this.DomainWarpType) {
($_ -EQ [FnlDomainWarpType]::OpenSimplex2 -OR $_ -EQ [FnlDomainWarpType]::OpenSimplex2Reduced) {
$this.WarpTransformType3D = [FnlTransformType3D]::DefaultOpenSimplex2
Break
}
Default {
$this.WarpTransformType3D = [FnlTransformType3D]::None
Break
}
}
Break
}
}
Return
}
[Single]GenFractalFBm(
[Single]$X,
[Single]$Y
) {
[Int64]$ASeed = $this.Seed
[Single]$Sum = 0
[Single]$Amp = $this.FractalBounding
For([Int64]$I = 0; $I -LT $this.Octaves; $I++) {
[Single]$Noise = $this.GenNoiseSingle($ASeed++, $X, $Y)
$Sum += $Noise * $Amp
$Amp *= $this.Lerp(1, [FastNoiseLite]::FastMin($Noise + 1, 2) * 0.5, $this.WeightedStrength)
$X *= $this.Lacunarity
$Y *= $this.Lacunarity
$Amp *= $this.Gain
}
Return $Sum
}
[Single]GenFractalFBm(