Prevent entering “/”, “\” and “:” in team and scheme names.
The name of teams and schems is saved in the file name itself, so these characters would cause trouble as they are used in path names in Linux and Windows.
{$INCLUDE "options.inc"}
unit uLandGenPerlin;
interface
procedure GenPerlin;
implementation
uses uVariables
, uConsts
, uRandom
, uLandOutline // FillLand
, uUtils
;
var p: array[0..511] of LongInt;
const fadear: array[byte] of LongInt =
(0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 3, 4, 6, 7, 9, 10, 12,
14, 17, 19, 22, 25, 29, 32, 36, 40, 45, 49, 54, 60, 65, 71,
77, 84, 91, 98, 105, 113, 121, 130, 139, 148, 158, 167, 178,
188, 199, 211, 222, 234, 247, 259, 273, 286, 300, 314, 329, 344,
359, 374, 390, 407, 424, 441, 458, 476, 494, 512, 531, 550,
570, 589, 609, 630, 651, 672, 693, 715, 737, 759, 782, 805, 828,
851, 875, 899, 923, 948, 973, 998, 1023, 1049, 1074, 1100, 1127,
1153, 1180, 1207, 1234, 1261, 1289, 1316, 1344, 1372, 1400, 1429,
1457, 1486, 1515, 1543, 1572, 1602, 1631, 1660, 1690, 1719, 1749,
1778, 1808, 1838, 1868, 1898, 1928, 1958, 1988, 2018, 2048, 2077,
2107, 2137, 2167, 2197, 2227, 2257, 2287, 2317, 2346, 2376, 2405,
2435, 2464, 2493, 2523, 2552, 2580, 2609, 2638, 2666, 2695, 2723,
2751, 2779, 2806, 2834, 2861, 2888, 2915, 2942, 2968, 2995, 3021,
3046, 3072, 3097, 3122, 3147, 3172, 3196, 3220, 3244, 3267, 3290,
3313, 3336, 3358, 3380, 3402, 3423, 3444, 3465, 3486, 3506, 3525,
3545, 3564, 3583, 3601, 3619, 3637, 3654, 3672, 3688, 3705, 3721,
3736, 3751, 3766, 3781, 3795, 3809, 3822, 3836, 3848, 3861, 3873,
3884, 3896, 3907, 3917, 3928, 3937, 3947, 3956, 3965, 3974, 3982,
3990, 3997, 4004, 4011, 4018, 4024, 4030, 4035, 4041, 4046, 4050,
4055, 4059, 4063, 4066, 4070, 4073, 4076, 4078, 4081, 4083, 4085,
4086, 4088, 4089, 4091, 4092, 4092, 4093, 4094, 4094, 4095, 4095,
4095, 4095, 4095, 4095, 4095);
function fade(t: LongInt) : LongInt; inline;
var t0, t1: LongInt;
begin
t0:= fadear[t shr 8];
if t0 = fadear[255] then
t1:= t0
else
t1:= fadear[t shr 8 + 1];
fade:= t0 + ((t and 255) * (t1 - t0) shr 8)
end;
function lerp(t, a, b: LongInt) : LongInt; inline;
begin
lerp:= a + ((Int64(b) - a) * t shr 12)
end;
function grad(hash, x, y: LongInt) : LongInt; inline;
var h, v, u: LongInt;
begin
h:= hash and 15;
if h < 8 then u:= x else u:= y;
if h < 4 then v:= y else
if (h = 12) or (h = 14) then v:= x else v:= 0;
if (h and 1) <> 0 then u:= -u;
if (h and 2) <> 0 then v:= -v;
grad:= u + v
end;
function inoise(x, y: LongInt) : LongInt; inline;
const N = $10000;
var xx, yy, u, v, A, AA, AB, B, BA, BB: LongInt;
begin
xx:= (x shr 16) and 255;
yy:= (y shr 16) and 255;
x:= x and $FFFF;
y:= y and $FFFF;
u:= fade(x);
v:= fade(y);
A:= p[xx ] + yy; AA:= p[A]; AB:= p[A + 1];
B:= p[xx + 1] + yy; BA:= p[B]; BB:= p[B + 1];
inoise:=
lerp(v, lerp(u, grad(p[AA ], x , y ),
grad(p[BA ], x-N , y )),
lerp(u, grad(p[AB ], x , y-N),
grad(p[BB ], x-N , y-N)));
end;
procedure inoise_setup();
var i, ii, t: Longword;
begin
for i:= 0 to 254 do
p[i]:= i + 1;
p[255]:= 0;
for i:= 0 to 254 do
begin
ii:= GetRandom(256 - i) + i;
t:= p[i];
p[i]:= p[ii];
p[ii]:= t
end;
for i:= 0 to 255 do
p[256 + i]:= p[i];
end;
const width = 4096;
height = 2048;
minY = 500;
//bottomPlateHeight = 90;
//bottomPlateMargin = 1200;
margin = 200;
procedure GenPerlin;
var y, x, di, dj, r, param1, param2, rCutoff, detail: LongInt;
var df: Int64;
begin
param1:= cTemplateFilter div 3;
param2:= cTemplateFilter mod 3;
rCutoff:= min(max((26-cFeatureSize)*4,15),85);
detail:= (26-cFeatureSize)*16000+50000; // feature size is a slider from 1-25 at present. flip it for perlin
df:= detail * (6 - param2 * 2);
inoise_setup();
for y:= minY to pred(height) do
begin
di:= df * y div height;
for x:= 0 to pred(width) do
begin
dj:= df * x div width;
r:= ((abs(inoise(di, dj)) + y*4) mod 65536 - (height - y) * 8) div 256;
//r:= (abs(inoise(di, dj))) shr 8 and $ff;
if (x < margin) or (x > width - margin) then r:= r - abs(x - width div 2) + width div 2 - margin; // fade on edges
//r:= r - max(0, - abs(x - width div 2) + width * 2 div 100); // split vertically in the middle
//r:= r + (trunc(1000 - sqrt(sqr(x - (width div 2)) * 4 + sqr(y - height * 5 div 4) * 22))) div 600 * 20; // ellipse
//r:= r + 1 - ((abs(x - (width div 2)) + abs(y - height) * 2)) div 32; // manhattan length ellipse
{
if (y > height - bottomPlateHeight) and (x > bottomPlateMargin) and (x + bottomPlateMargin < width) then
begin
dy:= (y - height + bottomPlateHeight);
r:= r + dy;
if x < bottomPlateMargin + bottomPlateHeight then
r:= r + (x - bottomPlateMargin - bottomPlateHeight)
else
if x + bottomPlateMargin + bottomPlateHeight > width then
r:= r - (x - width + bottomPlateMargin + bottomPlateHeight);
end;
}
if r < rCutoff then
Land[y, x]:= 0
else if param1 = 0 then
Land[y, x]:= lfObjMask
else
Land[y, x]:= lfBasic
end;
end;
if param1 = 0 then
begin
for x:= 0 to width do
if Land[height - 1, x] = lfObjMask then FillLand(x, height - 1, 0, lfBasic);
// strip all lfObjMask pixels
for y:= minY to LAND_HEIGHT - 1 do
for x:= 0 to LAND_WIDTH - 1 do
if Land[y, x] = lfObjMask then
Land[y, x]:= 0;
end;
leftX:= 0;
rightX:= 4095;
topY:= 0;
hasBorder:= false;
end;
end.