hedgewars/uLandGenPerlin.pas
author nemo
Tue, 11 Nov 2014 17:25:47 -0500
changeset 10492 0cf3b2762606
parent 10491 c92955fa8b67
child 10494 0eb97cf4c78e
permissions -rw-r--r--
lfObjMask is only used when flood filling
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
     1
{$INCLUDE "options.inc"}
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
     2
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
     3
unit uLandGenPerlin;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
     4
interface
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
     5
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
     6
procedure GenPerlin;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
     7
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
     8
implementation
10189
875607ce793d - Rework FillLand
unc0rr
parents: 10188
diff changeset
     9
uses uVariables
875607ce793d - Rework FillLand
unc0rr
parents: 10188
diff changeset
    10
    , uConsts
875607ce793d - Rework FillLand
unc0rr
parents: 10188
diff changeset
    11
    , uRandom
875607ce793d - Rework FillLand
unc0rr
parents: 10188
diff changeset
    12
    , uLandOutline // FillLand
10479
31afb7cdff69 hookup perlin
nemo
parents: 10391
diff changeset
    13
    , uUtils
10189
875607ce793d - Rework FillLand
unc0rr
parents: 10188
diff changeset
    14
    ;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    15
10188
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    16
var p: array[0..511] of LongInt;
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    17
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    18
const fadear: array[byte] of LongInt = 
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    19
(0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 3, 4, 6, 7, 9, 10, 12,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    20
14, 17, 19, 22, 25, 29, 32, 36, 40, 45, 49, 54, 60, 65, 71,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    21
77, 84, 91, 98, 105, 113, 121, 130, 139, 148, 158, 167, 178,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    22
188, 199, 211, 222, 234, 247, 259, 273, 286, 300, 314, 329, 344,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    23
359, 374, 390, 407, 424, 441, 458, 476, 494, 512, 531, 550,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    24
570, 589, 609, 630, 651, 672, 693, 715, 737, 759, 782, 805, 828,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    25
851, 875, 899, 923, 948, 973, 998, 1023, 1049, 1074, 1100, 1127,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    26
1153, 1180, 1207, 1234, 1261, 1289, 1316, 1344, 1372, 1400, 1429,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    27
1457, 1486, 1515, 1543, 1572, 1602, 1631, 1660, 1690, 1719, 1749,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    28
1778, 1808, 1838, 1868, 1898, 1928, 1958, 1988, 2018, 2048, 2077,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    29
2107, 2137, 2167, 2197, 2227, 2257, 2287, 2317, 2346, 2376, 2405,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    30
2435, 2464, 2493, 2523, 2552, 2580, 2609, 2638, 2666, 2695, 2723,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    31
2751, 2779, 2806, 2834, 2861, 2888, 2915, 2942, 2968, 2995, 3021,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    32
3046, 3072, 3097, 3122, 3147, 3172, 3196, 3220, 3244, 3267, 3290,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    33
3313, 3336, 3358, 3380, 3402, 3423, 3444, 3465, 3486, 3506, 3525,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    34
3545, 3564, 3583, 3601, 3619, 3637, 3654, 3672, 3688, 3705, 3721,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    35
3736, 3751, 3766, 3781, 3795, 3809, 3822, 3836, 3848, 3861, 3873,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    36
3884, 3896, 3907, 3917, 3928, 3937, 3947, 3956, 3965, 3974, 3982,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    37
3990, 3997, 4004, 4011, 4018, 4024, 4030, 4035, 4041, 4046, 4050,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    38
4055, 4059, 4063, 4066, 4070, 4073, 4076, 4078, 4081, 4083, 4085,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    39
4086, 4088, 4089, 4091, 4092, 4092, 4093, 4094, 4094, 4095, 4095,
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    40
4095, 4095, 4095, 4095, 4095);
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    41
10183
189afaf2d076 Some tweaks to perlin generator
unc0rr
parents: 10182
diff changeset
    42
function fade(t: LongInt) : LongInt; inline;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    43
var t0, t1: LongInt;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    44
begin
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    45
    t0:= fadear[t shr 8];
10189
875607ce793d - Rework FillLand
unc0rr
parents: 10188
diff changeset
    46
875607ce793d - Rework FillLand
unc0rr
parents: 10188
diff changeset
    47
    if t0 = fadear[255] then 
875607ce793d - Rework FillLand
unc0rr
parents: 10188
diff changeset
    48
        t1:= t0
875607ce793d - Rework FillLand
unc0rr
parents: 10188
diff changeset
    49
    else
875607ce793d - Rework FillLand
unc0rr
parents: 10188
diff changeset
    50
        t1:= fadear[t shr 8 + 1];
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    51
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    52
    fade:= t0 + ((t and 255) * (t1 - t0) shr 8)
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    53
end;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    54
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    55
10183
189afaf2d076 Some tweaks to perlin generator
unc0rr
parents: 10182
diff changeset
    56
function lerp(t, a, b: LongInt) : LongInt; inline;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    57
begin
10196
514e338f2eaf Fix perlin gen on 32 bit arch
unc0rr
parents: 10192
diff changeset
    58
    lerp:= a + (Int64(b - a) * t shr 12)
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    59
end;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    60
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    61
10188
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    62
function grad(hash, x, y: LongInt) : LongInt; inline;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    63
var h, v, u: LongInt;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    64
begin
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    65
    h:= hash and 15;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    66
    if h < 8 then u:= x else u:= y;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    67
    if h < 4 then v:= y else
10185
007a40cfbb3d Strip Z axis from calculations
unc0rr
parents: 10184
diff changeset
    68
        if (h = 12) or (h = 14) then v:= x else v:= 0;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    69
10185
007a40cfbb3d Strip Z axis from calculations
unc0rr
parents: 10184
diff changeset
    70
    if (h and 1) <> 0 then u:= -u;
007a40cfbb3d Strip Z axis from calculations
unc0rr
parents: 10184
diff changeset
    71
    if (h and 2) <> 0 then v:= -v;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    72
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    73
    grad:= u + v
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    74
end;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    75
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    76
10188
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
    77
function inoise(x, y: LongInt) : LongInt; inline;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    78
const N = $10000;
10185
007a40cfbb3d Strip Z axis from calculations
unc0rr
parents: 10184
diff changeset
    79
var xx, yy, u, v, A, AA, AB, B, BA, BB: LongInt;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    80
begin
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    81
    xx:= (x shr 16) and 255;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    82
    yy:= (y shr 16) and 255;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    83
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    84
    x:= x and $FFFF;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    85
    y:= y and $FFFF;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    86
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    87
    u:= fade(x);
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    88
    v:= fade(y);
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    89
10185
007a40cfbb3d Strip Z axis from calculations
unc0rr
parents: 10184
diff changeset
    90
    A:= p[xx    ] + yy; AA:= p[A]; AB:= p[A + 1];
007a40cfbb3d Strip Z axis from calculations
unc0rr
parents: 10184
diff changeset
    91
    B:= p[xx + 1] + yy; BA:= p[B]; BB:= p[B + 1];
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    92
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    93
    inoise:=
10185
007a40cfbb3d Strip Z axis from calculations
unc0rr
parents: 10184
diff changeset
    94
            lerp(v, lerp(u, grad(p[AA  ], x   , y  ),
007a40cfbb3d Strip Z axis from calculations
unc0rr
parents: 10184
diff changeset
    95
                            grad(p[BA  ], x-N , y  )),
007a40cfbb3d Strip Z axis from calculations
unc0rr
parents: 10184
diff changeset
    96
                    lerp(u, grad(p[AB  ], x   , y-N),
007a40cfbb3d Strip Z axis from calculations
unc0rr
parents: 10184
diff changeset
    97
                            grad(p[BB  ], x-N , y-N)));
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    98
end;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
    99
10188
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
   100
function f(t: double): double; inline;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   101
begin
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   102
    f:= t * t * t * (t * (t * 6 - 15) + 10);
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   103
end;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   104
10182
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   105
procedure inoise_setup();
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   106
var i, ii, t: LongInt;
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   107
begin
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   108
    for i:= 0 to 254 do
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   109
        p[i]:= i + 1;
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   110
    p[255]:= 0;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   111
10182
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   112
    for i:= 0 to 254 do
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   113
    begin
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   114
        ii:= GetRandom(256 - i) + i;
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   115
        t:= p[i];
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   116
        p[i]:= p[ii];
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   117
        p[ii]:= t
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   118
    end;
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   119
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   120
    for i:= 0 to 255 do
10182
9d34898b22f7 Add randomness
unc0rr
parents: 10181
diff changeset
   121
        p[256 + i]:= p[i];
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   122
end;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   123
10479
31afb7cdff69 hookup perlin
nemo
parents: 10391
diff changeset
   124
const width = 4096;
31afb7cdff69 hookup perlin
nemo
parents: 10391
diff changeset
   125
      height = 2048;
31afb7cdff69 hookup perlin
nemo
parents: 10391
diff changeset
   126
      minY = 500;
10190
e4f81f6d428c Tweaks and tweaks
unc0rr
parents: 10189
diff changeset
   127
10249
b47ac2c19de3 get rid of fpc warnings/hints
sheepluva
parents: 10199
diff changeset
   128
    //bottomPlateHeight = 90;
b47ac2c19de3 get rid of fpc warnings/hints
sheepluva
parents: 10199
diff changeset
   129
    //bottomPlateMargin = 1200;
10190
e4f81f6d428c Tweaks and tweaks
unc0rr
parents: 10189
diff changeset
   130
    margin = 200;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   131
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   132
procedure GenPerlin;
10479
31afb7cdff69 hookup perlin
nemo
parents: 10391
diff changeset
   133
var y, x, {dy, }di, dj, df, r, param1, param2, rCutoff, detail: LongInt;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   134
begin
10391
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   135
    param1:= cTemplateFilter div 3;
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   136
    param2:= cTemplateFilter mod 3;
10491
c92955fa8b67 flip slider for perlin
nemo
parents: 10479
diff changeset
   137
    rCutoff:= min(max((26-cFeatureSize)*4,15),85);
c92955fa8b67 flip slider for perlin
nemo
parents: 10479
diff changeset
   138
    detail:= (26-cFeatureSize)*16000+50000; // feature size is a slider from 1-25 at present. flip it for perlin
10391
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   139
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   140
    df:= detail * (6 - param2 * 2);
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   141
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   142
    inoise_setup();
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   143
10190
e4f81f6d428c Tweaks and tweaks
unc0rr
parents: 10189
diff changeset
   144
    for y:= minY to pred(height) do
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   145
    begin
10188
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
   146
        di:= df * y div height;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   147
        for x:= 0 to pred(width) do
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   148
        begin
10188
e8f2dbabd01b as suggested, precompute to avoid use of double
nemo
parents: 10187
diff changeset
   149
            dj:= df * x div width;
10192
bb1310c4bd79 Feel free to revert this one, was just screwing around with stuff from before. I kinda like it and figured committing it was the easiest way for you to look at it. http://m8y.org/hw/perlin.png
nemo
parents: 10191
diff changeset
   150
10386
c9e38f8d4f94 Smooth perlin's outline
unc0rr
parents: 10249
diff changeset
   151
            r:= ((abs(inoise(di, dj)) + y*4) mod 65536 - (height - y) * 8) div 256;
10192
bb1310c4bd79 Feel free to revert this one, was just screwing around with stuff from before. I kinda like it and figured committing it was the easiest way for you to look at it. http://m8y.org/hw/perlin.png
nemo
parents: 10191
diff changeset
   152
bb1310c4bd79 Feel free to revert this one, was just screwing around with stuff from before. I kinda like it and figured committing it was the easiest way for you to look at it. http://m8y.org/hw/perlin.png
nemo
parents: 10191
diff changeset
   153
            //r:= (abs(inoise(di, dj))) shr 8 and $ff;
10190
e4f81f6d428c Tweaks and tweaks
unc0rr
parents: 10189
diff changeset
   154
            if (x < margin) or (x > width - margin) then r:= r - abs(x - width div 2) + width div 2 - margin; // fade on edges
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   155
10190
e4f81f6d428c Tweaks and tweaks
unc0rr
parents: 10189
diff changeset
   156
            //r:= r - max(0, - abs(x - width div 2) + width * 2 div 100); // split vertically in the middle
10183
189afaf2d076 Some tweaks to perlin generator
unc0rr
parents: 10182
diff changeset
   157
            //r:= r + (trunc(1000 - sqrt(sqr(x - (width div 2)) * 4 + sqr(y - height * 5 div 4) * 22))) div 600 * 20; // ellipse
10190
e4f81f6d428c Tweaks and tweaks
unc0rr
parents: 10189
diff changeset
   158
            //r:= r + 1 - ((abs(x - (width div 2)) + abs(y - height) * 2)) div 32; // manhattan length ellipse
10187
0d506346c1f0 Experiment: enforce a plate at bottom so the map generated is more connected
unc0rr
parents: 10186
diff changeset
   159
10190
e4f81f6d428c Tweaks and tweaks
unc0rr
parents: 10189
diff changeset
   160
            {
10187
0d506346c1f0 Experiment: enforce a plate at bottom so the map generated is more connected
unc0rr
parents: 10186
diff changeset
   161
            if (y > height - bottomPlateHeight) and (x > bottomPlateMargin) and (x + bottomPlateMargin < width) then
0d506346c1f0 Experiment: enforce a plate at bottom so the map generated is more connected
unc0rr
parents: 10186
diff changeset
   162
            begin
10190
e4f81f6d428c Tweaks and tweaks
unc0rr
parents: 10189
diff changeset
   163
                dy:= (y - height + bottomPlateHeight);
10187
0d506346c1f0 Experiment: enforce a plate at bottom so the map generated is more connected
unc0rr
parents: 10186
diff changeset
   164
                r:= r + dy;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   165
10187
0d506346c1f0 Experiment: enforce a plate at bottom so the map generated is more connected
unc0rr
parents: 10186
diff changeset
   166
                if x < bottomPlateMargin + bottomPlateHeight then
10190
e4f81f6d428c Tweaks and tweaks
unc0rr
parents: 10189
diff changeset
   167
                    r:= r + (x - bottomPlateMargin - bottomPlateHeight)
10187
0d506346c1f0 Experiment: enforce a plate at bottom so the map generated is more connected
unc0rr
parents: 10186
diff changeset
   168
                else
0d506346c1f0 Experiment: enforce a plate at bottom so the map generated is more connected
unc0rr
parents: 10186
diff changeset
   169
                if x + bottomPlateMargin + bottomPlateHeight > width then
10190
e4f81f6d428c Tweaks and tweaks
unc0rr
parents: 10189
diff changeset
   170
                    r:= r - (x - width + bottomPlateMargin + bottomPlateHeight);
10187
0d506346c1f0 Experiment: enforce a plate at bottom so the map generated is more connected
unc0rr
parents: 10186
diff changeset
   171
            end;
10190
e4f81f6d428c Tweaks and tweaks
unc0rr
parents: 10189
diff changeset
   172
            }
10192
bb1310c4bd79 Feel free to revert this one, was just screwing around with stuff from before. I kinda like it and figured committing it was the easiest way for you to look at it. http://m8y.org/hw/perlin.png
nemo
parents: 10191
diff changeset
   173
10492
0cf3b2762606 lfObjMask is only used when flood filling
nemo
parents: 10491
diff changeset
   174
            if r < rCutoff then
0cf3b2762606 lfObjMask is only used when flood filling
nemo
parents: 10491
diff changeset
   175
                Land[y, x]:= 0
0cf3b2762606 lfObjMask is only used when flood filling
nemo
parents: 10491
diff changeset
   176
            else if param1 = 0 then
0cf3b2762606 lfObjMask is only used when flood filling
nemo
parents: 10491
diff changeset
   177
                Land[y, x]:= lfObjMask
0cf3b2762606 lfObjMask is only used when flood filling
nemo
parents: 10491
diff changeset
   178
            else
0cf3b2762606 lfObjMask is only used when flood filling
nemo
parents: 10491
diff changeset
   179
                Land[y, x]:= lfBasic 
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   180
        end;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   181
    end;
10184
f87776bd5acd Setup leftX, rightX and topY
unc0rr
parents: 10183
diff changeset
   182
10391
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   183
    if param1 = 0 then
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   184
        begin
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   185
        for x:= 0 to width do
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   186
            if Land[height - 1, x] = lfObjMask then FillLand(x, height - 1, 0, lfBasic);
10190
e4f81f6d428c Tweaks and tweaks
unc0rr
parents: 10189
diff changeset
   187
10391
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   188
        // strip all lfObjMask pixels
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   189
        for y:= minY to LAND_HEIGHT - 1 do
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   190
            for x:= 0 to LAND_WIDTH - 1 do
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   191
                if Land[y, x] = lfObjMask then
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   192
                    Land[y, x]:= 0;
ce3ccc45d790 Add separate option for perlin gen
unc0rr
parents: 10386
diff changeset
   193
        end;
10189
875607ce793d - Rework FillLand
unc0rr
parents: 10188
diff changeset
   194
10184
f87776bd5acd Setup leftX, rightX and topY
unc0rr
parents: 10183
diff changeset
   195
    leftX:= 0;
f87776bd5acd Setup leftX, rightX and topY
unc0rr
parents: 10183
diff changeset
   196
    rightX:= 4095;
f87776bd5acd Setup leftX, rightX and topY
unc0rr
parents: 10183
diff changeset
   197
    topY:= 0;
f87776bd5acd Setup leftX, rightX and topY
unc0rr
parents: 10183
diff changeset
   198
    hasBorder:= false;
10181
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   199
end;
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   200
4708343d5963 Perlin noise generator untweaked, temporarily replacing maze generator
unc0rr
parents:
diff changeset
   201
end.